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

Comparing libev/ev.c (file contents):
Revision 1.378 by root, Mon Jun 13 09:52:36 2011 UTC vs.
Revision 1.467 by root, Fri May 16 15:15:39 2014 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 *
… …
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
254#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 263# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 264# else
258# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
259# endif 266# endif
260#endif 267#endif
… …
347 354
348#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 357#endif
351 358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* 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. */ 376/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 378# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
360# else 383# else
… …
363# endif 386# endif
364#endif 387#endif
365 388
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 390
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 391#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
377#endif 394#endif
378 395
… …
386# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
387#endif 404#endif
388 405
389#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 408# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 409# include <sys/select.h>
393# endif 410# endif
394#endif 411#endif
395 412
396#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
403# endif 420# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 421#endif
409 422
410#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 425# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 477#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 478
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 479#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) 480#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 481
482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
483/* ECB.H BEGIN */
484/*
485 * libecb - http://software.schmorp.de/pkg/libecb
486 *
487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
488 * Copyright (©) 2011 Emanuele Giaquinta
489 * All rights reserved.
490 *
491 * Redistribution and use in source and binary forms, with or without modifica-
492 * tion, are permitted provided that the following conditions are met:
493 *
494 * 1. Redistributions of source code must retain the above copyright notice,
495 * this list of conditions and the following disclaimer.
496 *
497 * 2. Redistributions in binary form must reproduce the above copyright
498 * notice, this list of conditions and the following disclaimer in the
499 * documentation and/or other materials provided with the distribution.
500 *
501 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
502 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
503 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
504 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
505 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
510 * OF THE POSSIBILITY OF SUCH DAMAGE.
511 *
512 * Alternatively, the contents of this file may be used under the terms of
513 * the GNU General Public License ("GPL") version 2 or any later version,
514 * in which case the provisions of the GPL are applicable instead of
515 * the above. If you wish to allow the use of your version of this file
516 * only under the terms of the GPL and not to allow others to use your
517 * version of this file under the BSD license, indicate your decision
518 * by deleting the provisions above and replace them with the notice
519 * and other provisions required by the GPL. If you do not delete the
520 * provisions above, a recipient may use your version of this file under
521 * either the BSD or the GPL.
522 */
523
524#ifndef ECB_H
525#define ECB_H
526
527/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003
529
530#ifdef _WIN32
531 typedef signed char int8_t;
532 typedef unsigned char uint8_t;
533 typedef signed short int16_t;
534 typedef unsigned short uint16_t;
535 typedef signed int int32_t;
536 typedef unsigned int uint32_t;
469#if __GNUC__ >= 4 537 #if __GNUC__
470# define expect(expr,value) __builtin_expect ((expr),(value)) 538 typedef signed long long int64_t;
471# define noinline __attribute__ ((noinline)) 539 typedef unsigned long long uint64_t;
540 #else /* _MSC_VER || __BORLANDC__ */
541 typedef signed __int64 int64_t;
542 typedef unsigned __int64 uint64_t;
543 #endif
544 #ifdef _WIN64
545 #define ECB_PTRSIZE 8
546 typedef uint64_t uintptr_t;
547 typedef int64_t intptr_t;
548 #else
549 #define ECB_PTRSIZE 4
550 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t;
552 #endif
472#else 553#else
473# define expect(expr,value) (expr) 554 #include <inttypes.h>
474# define noinline 555 #if UINTMAX_MAX > 0xffffffffU
475# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 556 #define ECB_PTRSIZE 8
476# define inline 557 #else
558 #define ECB_PTRSIZE 4
559 #endif
477# endif 560#endif
561
562/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
564 #if _ILP32
565 #define ECB_AMD64_X32 1
566 #else
567 #define ECB_AMD64 1
478#endif 568 #endif
569#endif
479 570
571/* many compilers define _GNUC_ to some versions but then only implement
572 * what their idiot authors think are the "more important" extensions,
573 * causing enormous grief in return for some better fake benchmark numbers.
574 * or so.
575 * we try to detect these and simply assume they are not gcc - if they have
576 * an issue with that they should have done it right in the first place.
577 */
578#ifndef ECB_GCC_VERSION
579 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
580 #define ECB_GCC_VERSION(major,minor) 0
581 #else
582 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
583 #endif
584#endif
585
586#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L)
588
589#if ECB_CPP
590 #define ECB_C 0
591 #define ECB_STDC_VERSION 0
592#else
593 #define ECB_C 1
594 #define ECB_STDC_VERSION __STDC_VERSION__
595#endif
596
597#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
599
600#if ECB_CPP
601 #define ECB_EXTERN_C extern "C"
602 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603 #define ECB_EXTERN_C_END }
604#else
605 #define ECB_EXTERN_C extern
606 #define ECB_EXTERN_C_BEG
607 #define ECB_EXTERN_C_END
608#endif
609
610/*****************************************************************************/
611
612/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
613/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
614
615#if ECB_NO_THREADS
616 #define ECB_NO_SMP 1
617#endif
618
619#if ECB_NO_SMP
620 #define ECB_MEMORY_FENCE do { } while (0)
621#endif
622
623#ifndef ECB_MEMORY_FENCE
624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
625 #if __i386 || __i386__
626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
643 #elif (__sparc || __sparc__) && !__sparcv8
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
647 #elif defined __s390__ || defined __s390x__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
649 #elif defined __mips__
650 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
651 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
652 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
653 #elif defined __alpha__
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
655 #elif defined __hppa__
656 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
658 #elif defined __ia64__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
660 #elif defined __m68k__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
662 #elif defined __m88k__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
664 #elif defined __sh__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
666 #endif
667 #endif
668#endif
669
670#ifndef ECB_MEMORY_FENCE
671 #if ECB_GCC_VERSION(4,7)
672 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
676
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model.
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */
687
688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
689 #define ECB_MEMORY_FENCE __sync_synchronize ()
690 #elif _MSC_VER >= 1500 /* VC++ 2008 */
691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
692 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
693 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
694 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
695 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
696 #elif _MSC_VER >= 1400 /* VC++ 2005 */
697 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
698 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
699 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
700 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
701 #elif defined _WIN32
702 #include <WinNT.h>
703 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
704 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
705 #include <mbarrier.h>
706 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
707 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
708 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
709 #elif __xlC__
710 #define ECB_MEMORY_FENCE __sync ()
711 #endif
712#endif
713
714#ifndef ECB_MEMORY_FENCE
715 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
716 /* we assume that these memory fences work on all variables/all memory accesses, */
717 /* not just C11 atomics and atomic accesses */
718 #include <stdatomic.h>
719 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
720 /* any fence other than seq_cst, which isn't very efficient for us. */
721 /* Why that is, we don't know - either the C11 memory model is quite useless */
722 /* for most usages, or gcc and clang have a bug */
723 /* I *currently* lean towards the latter, and inefficiently implement */
724 /* all three of ecb's fences as a seq_cst fence */
725 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
726 /* for all __atomic_thread_fence's except seq_cst */
727 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
728 #endif
729#endif
730
731#ifndef ECB_MEMORY_FENCE
732 #if !ECB_AVOID_PTHREADS
733 /*
734 * if you get undefined symbol references to pthread_mutex_lock,
735 * or failure to find pthread.h, then you should implement
736 * the ECB_MEMORY_FENCE operations for your cpu/compiler
737 * OR provide pthread.h and link against the posix thread library
738 * of your system.
739 */
740 #include <pthread.h>
741 #define ECB_NEEDS_PTHREADS 1
742 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
743
744 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
745 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
746 #endif
747#endif
748
749#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
750 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
751#endif
752
753#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
755#endif
756
757/*****************************************************************************/
758
759#if __cplusplus
760 #define ecb_inline static inline
761#elif ECB_GCC_VERSION(2,5)
762 #define ecb_inline static __inline__
763#elif ECB_C99
764 #define ecb_inline static inline
765#else
766 #define ecb_inline static
767#endif
768
769#if ECB_GCC_VERSION(3,3)
770 #define ecb_restrict __restrict__
771#elif ECB_C99
772 #define ecb_restrict restrict
773#else
774 #define ecb_restrict
775#endif
776
777typedef int ecb_bool;
778
779#define ECB_CONCAT_(a, b) a ## b
780#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
781#define ECB_STRINGIFY_(a) # a
782#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
783
784#define ecb_function_ ecb_inline
785
786#if ECB_GCC_VERSION(3,1)
787 #define ecb_attribute(attrlist) __attribute__(attrlist)
788 #define ecb_is_constant(expr) __builtin_constant_p (expr)
789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
791#else
792 #define ecb_attribute(attrlist)
793
794 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797
798 #define ecb_is_constant(expr) 0
799 #define ecb_expect(expr,value) (expr)
800 #define ecb_prefetch(addr,rw,locality)
801#endif
802
803/* no emulation for ecb_decltype */
804#if ECB_GCC_VERSION(4,5)
805 #define ecb_decltype(x) __decltype(x)
806#elif ECB_GCC_VERSION(3,0)
807 #define ecb_decltype(x) __typeof(x)
808#endif
809
810#define ecb_noinline ecb_attribute ((__noinline__))
811#define ecb_unused ecb_attribute ((__unused__))
812#define ecb_const ecb_attribute ((__const__))
813#define ecb_pure ecb_attribute ((__pure__))
814
815#if ECB_C11
816 #define ecb_noreturn _Noreturn
817#else
818 #define ecb_noreturn ecb_attribute ((__noreturn__))
819#endif
820
821#if ECB_GCC_VERSION(4,3)
822 #define ecb_artificial ecb_attribute ((__artificial__))
823 #define ecb_hot ecb_attribute ((__hot__))
824 #define ecb_cold ecb_attribute ((__cold__))
825#else
826 #define ecb_artificial
827 #define ecb_hot
828 #define ecb_cold
829#endif
830
831/* put around conditional expressions if you are very sure that the */
832/* expression is mostly true or mostly false. note that these return */
833/* booleans, not the expression. */
480#define expect_false(expr) expect ((expr) != 0, 0) 834#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481#define expect_true(expr) expect ((expr) != 0, 1) 835#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
836/* for compatibility to the rest of the world */
837#define ecb_likely(expr) ecb_expect_true (expr)
838#define ecb_unlikely(expr) ecb_expect_false (expr)
839
840/* count trailing zero bits and count # of one bits */
841#if ECB_GCC_VERSION(3,4)
842 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
843 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
844 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
845 #define ecb_ctz32(x) __builtin_ctz (x)
846 #define ecb_ctz64(x) __builtin_ctzll (x)
847 #define ecb_popcount32(x) __builtin_popcount (x)
848 /* no popcountll */
849#else
850 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
851 ecb_function_ int
852 ecb_ctz32 (uint32_t x)
853 {
854 int r = 0;
855
856 x &= ~x + 1; /* this isolates the lowest bit */
857
858#if ECB_branchless_on_i386
859 r += !!(x & 0xaaaaaaaa) << 0;
860 r += !!(x & 0xcccccccc) << 1;
861 r += !!(x & 0xf0f0f0f0) << 2;
862 r += !!(x & 0xff00ff00) << 3;
863 r += !!(x & 0xffff0000) << 4;
864#else
865 if (x & 0xaaaaaaaa) r += 1;
866 if (x & 0xcccccccc) r += 2;
867 if (x & 0xf0f0f0f0) r += 4;
868 if (x & 0xff00ff00) r += 8;
869 if (x & 0xffff0000) r += 16;
870#endif
871
872 return r;
873 }
874
875 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
876 ecb_function_ int
877 ecb_ctz64 (uint64_t x)
878 {
879 int shift = x & 0xffffffffU ? 0 : 32;
880 return ecb_ctz32 (x >> shift) + shift;
881 }
882
883 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
884 ecb_function_ int
885 ecb_popcount32 (uint32_t x)
886 {
887 x -= (x >> 1) & 0x55555555;
888 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
889 x = ((x >> 4) + x) & 0x0f0f0f0f;
890 x *= 0x01010101;
891
892 return x >> 24;
893 }
894
895 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
896 ecb_function_ int ecb_ld32 (uint32_t x)
897 {
898 int r = 0;
899
900 if (x >> 16) { x >>= 16; r += 16; }
901 if (x >> 8) { x >>= 8; r += 8; }
902 if (x >> 4) { x >>= 4; r += 4; }
903 if (x >> 2) { x >>= 2; r += 2; }
904 if (x >> 1) { r += 1; }
905
906 return r;
907 }
908
909 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
910 ecb_function_ int ecb_ld64 (uint64_t x)
911 {
912 int r = 0;
913
914 if (x >> 32) { x >>= 32; r += 32; }
915
916 return r + ecb_ld32 (x);
917 }
918#endif
919
920ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
921ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
922ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
923ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
924
925ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
926ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
927{
928 return ( (x * 0x0802U & 0x22110U)
929 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
930}
931
932ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
933ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
934{
935 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
936 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
937 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
938 x = ( x >> 8 ) | ( x << 8);
939
940 return x;
941}
942
943ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
944ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
945{
946 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
947 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
948 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
949 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
950 x = ( x >> 16 ) | ( x << 16);
951
952 return x;
953}
954
955/* popcount64 is only available on 64 bit cpus as gcc builtin */
956/* so for this version we are lazy */
957ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
958ecb_function_ int
959ecb_popcount64 (uint64_t x)
960{
961 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
962}
963
964ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
965ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
966ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
967ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
968ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
969ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
970ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
971ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
972
973ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
974ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
975ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
976ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
977ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
978ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
979ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
980ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
981
982#if ECB_GCC_VERSION(4,3)
983 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
984 #define ecb_bswap32(x) __builtin_bswap32 (x)
985 #define ecb_bswap64(x) __builtin_bswap64 (x)
986#else
987 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
988 ecb_function_ uint16_t
989 ecb_bswap16 (uint16_t x)
990 {
991 return ecb_rotl16 (x, 8);
992 }
993
994 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
995 ecb_function_ uint32_t
996 ecb_bswap32 (uint32_t x)
997 {
998 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
999 }
1000
1001 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
1002 ecb_function_ uint64_t
1003 ecb_bswap64 (uint64_t x)
1004 {
1005 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1006 }
1007#endif
1008
1009#if ECB_GCC_VERSION(4,5)
1010 #define ecb_unreachable() __builtin_unreachable ()
1011#else
1012 /* this seems to work fine, but gcc always emits a warning for it :/ */
1013 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1014 ecb_inline void ecb_unreachable (void) { }
1015#endif
1016
1017/* try to tell the compiler that some condition is definitely true */
1018#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1019
1020ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1021ecb_inline unsigned char
1022ecb_byteorder_helper (void)
1023{
1024 /* the union code still generates code under pressure in gcc, */
1025 /* but less than using pointers, and always seems to */
1026 /* successfully return a constant. */
1027 /* the reason why we have this horrible preprocessor mess */
1028 /* is to avoid it in all cases, at least on common architectures */
1029 /* or when using a recent enough gcc version (>= 4.6) */
1030#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1031 return 0x44;
1032#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1033 return 0x44;
1034#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1035 return 0x11;
1036#else
1037 union
1038 {
1039 uint32_t i;
1040 uint8_t c;
1041 } u = { 0x11223344 };
1042 return u.c;
1043#endif
1044}
1045
1046ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1047ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1048ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1049ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1050
1051#if ECB_GCC_VERSION(3,0) || ECB_C99
1052 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1053#else
1054 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1055#endif
1056
1057#if __cplusplus
1058 template<typename T>
1059 static inline T ecb_div_rd (T val, T div)
1060 {
1061 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1062 }
1063 template<typename T>
1064 static inline T ecb_div_ru (T val, T div)
1065 {
1066 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1067 }
1068#else
1069 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1070 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1071#endif
1072
1073#if ecb_cplusplus_does_not_suck
1074 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1075 template<typename T, int N>
1076 static inline int ecb_array_length (const T (&arr)[N])
1077 {
1078 return N;
1079 }
1080#else
1081 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1082#endif
1083
1084/*******************************************************************************/
1085/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1086
1087/* basically, everything uses "ieee pure-endian" floating point numbers */
1088/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1089#if 0 \
1090 || __i386 || __i386__ \
1091 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1092 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1093 || defined __s390__ || defined __s390x__ \
1094 || defined __mips__ \
1095 || defined __alpha__ \
1096 || defined __hppa__ \
1097 || defined __ia64__ \
1098 || defined __m68k__ \
1099 || defined __m88k__ \
1100 || defined __sh__ \
1101 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1102 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1103 || defined __aarch64__
1104 #define ECB_STDFP 1
1105 #include <string.h> /* for memcpy */
1106#else
1107 #define ECB_STDFP 0
1108#endif
1109
1110#ifndef ECB_NO_LIBM
1111
1112 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1113
1114 /* only the oldest of old doesn't have this one. solaris. */
1115 #ifdef INFINITY
1116 #define ECB_INFINITY INFINITY
1117 #else
1118 #define ECB_INFINITY HUGE_VAL
1119 #endif
1120
1121 #ifdef NAN
1122 #define ECB_NAN NAN
1123 #else
1124 #define ECB_NAN ECB_INFINITY
1125 #endif
1126
1127 /* converts an ieee half/binary16 to a float */
1128 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1129 ecb_function_ float
1130 ecb_binary16_to_float (uint16_t x)
1131 {
1132 int e = (x >> 10) & 0x1f;
1133 int m = x & 0x3ff;
1134 float r;
1135
1136 if (!e ) r = ldexpf (m , -24);
1137 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1138 else if (m ) r = ECB_NAN;
1139 else r = ECB_INFINITY;
1140
1141 return x & 0x8000 ? -r : r;
1142 }
1143
1144 /* convert a float to ieee single/binary32 */
1145 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1146 ecb_function_ uint32_t
1147 ecb_float_to_binary32 (float x)
1148 {
1149 uint32_t r;
1150
1151 #if ECB_STDFP
1152 memcpy (&r, &x, 4);
1153 #else
1154 /* slow emulation, works for anything but -0 */
1155 uint32_t m;
1156 int e;
1157
1158 if (x == 0e0f ) return 0x00000000U;
1159 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1160 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1161 if (x != x ) return 0x7fbfffffU;
1162
1163 m = frexpf (x, &e) * 0x1000000U;
1164
1165 r = m & 0x80000000U;
1166
1167 if (r)
1168 m = -m;
1169
1170 if (e <= -126)
1171 {
1172 m &= 0xffffffU;
1173 m >>= (-125 - e);
1174 e = -126;
1175 }
1176
1177 r |= (e + 126) << 23;
1178 r |= m & 0x7fffffU;
1179 #endif
1180
1181 return r;
1182 }
1183
1184 /* converts an ieee single/binary32 to a float */
1185 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1186 ecb_function_ float
1187 ecb_binary32_to_float (uint32_t x)
1188 {
1189 float r;
1190
1191 #if ECB_STDFP
1192 memcpy (&r, &x, 4);
1193 #else
1194 /* emulation, only works for normals and subnormals and +0 */
1195 int neg = x >> 31;
1196 int e = (x >> 23) & 0xffU;
1197
1198 x &= 0x7fffffU;
1199
1200 if (e)
1201 x |= 0x800000U;
1202 else
1203 e = 1;
1204
1205 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1206 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1207
1208 r = neg ? -r : r;
1209 #endif
1210
1211 return r;
1212 }
1213
1214 /* convert a double to ieee double/binary64 */
1215 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1216 ecb_function_ uint64_t
1217 ecb_double_to_binary64 (double x)
1218 {
1219 uint64_t r;
1220
1221 #if ECB_STDFP
1222 memcpy (&r, &x, 8);
1223 #else
1224 /* slow emulation, works for anything but -0 */
1225 uint64_t m;
1226 int e;
1227
1228 if (x == 0e0 ) return 0x0000000000000000U;
1229 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1230 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1231 if (x != x ) return 0X7ff7ffffffffffffU;
1232
1233 m = frexp (x, &e) * 0x20000000000000U;
1234
1235 r = m & 0x8000000000000000;;
1236
1237 if (r)
1238 m = -m;
1239
1240 if (e <= -1022)
1241 {
1242 m &= 0x1fffffffffffffU;
1243 m >>= (-1021 - e);
1244 e = -1022;
1245 }
1246
1247 r |= ((uint64_t)(e + 1022)) << 52;
1248 r |= m & 0xfffffffffffffU;
1249 #endif
1250
1251 return r;
1252 }
1253
1254 /* converts an ieee double/binary64 to a double */
1255 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1256 ecb_function_ double
1257 ecb_binary64_to_double (uint64_t x)
1258 {
1259 double r;
1260
1261 #if ECB_STDFP
1262 memcpy (&r, &x, 8);
1263 #else
1264 /* emulation, only works for normals and subnormals and +0 */
1265 int neg = x >> 63;
1266 int e = (x >> 52) & 0x7ffU;
1267
1268 x &= 0xfffffffffffffU;
1269
1270 if (e)
1271 x |= 0x10000000000000U;
1272 else
1273 e = 1;
1274
1275 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1276 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1277
1278 r = neg ? -r : r;
1279 #endif
1280
1281 return r;
1282 }
1283
1284#endif
1285
1286#endif
1287
1288/* ECB.H END */
1289
1290#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1291/* if your architecture doesn't need memory fences, e.g. because it is
1292 * single-cpu/core, or if you use libev in a project that doesn't use libev
1293 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1294 * libev, in which cases the memory fences become nops.
1295 * alternatively, you can remove this #error and link against libpthread,
1296 * which will then provide the memory fences.
1297 */
1298# error "memory fences not defined for your architecture, please report"
1299#endif
1300
1301#ifndef ECB_MEMORY_FENCE
1302# define ECB_MEMORY_FENCE do { } while (0)
1303# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1304# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1305#endif
1306
1307#define expect_false(cond) ecb_expect_false (cond)
1308#define expect_true(cond) ecb_expect_true (cond)
1309#define noinline ecb_noinline
1310
482#define inline_size static inline 1311#define inline_size ecb_inline
483 1312
484#if EV_FEATURE_CODE 1313#if EV_FEATURE_CODE
485# define inline_speed static inline 1314# define inline_speed ecb_inline
486#else 1315#else
487# define inline_speed static noinline 1316# define inline_speed static noinline
488#endif 1317#endif
489 1318
490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1319#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
581 1410
582#ifdef __linux 1411#ifdef __linux
583# include <sys/utsname.h> 1412# include <sys/utsname.h>
584#endif 1413#endif
585 1414
586static unsigned int noinline 1415static unsigned int noinline ecb_cold
587ev_linux_version (void) 1416ev_linux_version (void)
588{ 1417{
589#ifdef __linux 1418#ifdef __linux
590 unsigned int v = 0; 1419 unsigned int v = 0;
591 struct utsname buf; 1420 struct utsname buf;
… …
620} 1449}
621 1450
622/*****************************************************************************/ 1451/*****************************************************************************/
623 1452
624#if EV_AVOID_STDIO 1453#if EV_AVOID_STDIO
625static void noinline 1454static void noinline ecb_cold
626ev_printerr (const char *msg) 1455ev_printerr (const char *msg)
627{ 1456{
628 write (STDERR_FILENO, msg, strlen (msg)); 1457 write (STDERR_FILENO, msg, strlen (msg));
629} 1458}
630#endif 1459#endif
631 1460
632static void (*syserr_cb)(const char *msg); 1461static void (*syserr_cb)(const char *msg) EV_THROW;
633 1462
634void 1463void ecb_cold
635ev_set_syserr_cb (void (*cb)(const char *msg)) 1464ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636{ 1465{
637 syserr_cb = cb; 1466 syserr_cb = cb;
638} 1467}
639 1468
640static void noinline 1469static void noinline ecb_cold
641ev_syserr (const char *msg) 1470ev_syserr (const char *msg)
642{ 1471{
643 if (!msg) 1472 if (!msg)
644 msg = "(libev) system error"; 1473 msg = "(libev) system error";
645 1474
… …
658 abort (); 1487 abort ();
659 } 1488 }
660} 1489}
661 1490
662static void * 1491static void *
663ev_realloc_emul (void *ptr, long size) 1492ev_realloc_emul (void *ptr, long size) EV_THROW
664{ 1493{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
668 /* some systems, notably openbsd and darwin, fail to properly 1494 /* some systems, notably openbsd and darwin, fail to properly
669 * implement realloc (x, 0) (as required by both ansi c-89 and 1495 * implement realloc (x, 0) (as required by both ansi c-89 and
670 * the single unix specification, so work around them here. 1496 * the single unix specification, so work around them here.
1497 * recently, also (at least) fedora and debian started breaking it,
1498 * despite documenting it otherwise.
671 */ 1499 */
672 1500
673 if (size) 1501 if (size)
674 return realloc (ptr, size); 1502 return realloc (ptr, size);
675 1503
676 free (ptr); 1504 free (ptr);
677 return 0; 1505 return 0;
678#endif
679} 1506}
680 1507
681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1508static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682 1509
683void 1510void ecb_cold
684ev_set_allocator (void *(*cb)(void *ptr, long size)) 1511ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685{ 1512{
686 alloc = cb; 1513 alloc = cb;
687} 1514}
688 1515
689inline_speed void * 1516inline_speed void *
… …
777 #undef VAR 1604 #undef VAR
778 }; 1605 };
779 #include "ev_wrap.h" 1606 #include "ev_wrap.h"
780 1607
781 static struct ev_loop default_loop_struct; 1608 static struct ev_loop default_loop_struct;
782 struct ev_loop *ev_default_loop_ptr; 1609 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783 1610
784#else 1611#else
785 1612
786 ev_tstamp ev_rt_now; 1613 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
787 #define VAR(name,decl) static decl; 1614 #define VAR(name,decl) static decl;
788 #include "ev_vars.h" 1615 #include "ev_vars.h"
789 #undef VAR 1616 #undef VAR
790 1617
791 static int ev_default_loop_ptr; 1618 static int ev_default_loop_ptr;
… …
806 1633
807/*****************************************************************************/ 1634/*****************************************************************************/
808 1635
809#ifndef EV_HAVE_EV_TIME 1636#ifndef EV_HAVE_EV_TIME
810ev_tstamp 1637ev_tstamp
811ev_time (void) 1638ev_time (void) EV_THROW
812{ 1639{
813#if EV_USE_REALTIME 1640#if EV_USE_REALTIME
814 if (expect_true (have_realtime)) 1641 if (expect_true (have_realtime))
815 { 1642 {
816 struct timespec ts; 1643 struct timespec ts;
… …
840 return ev_time (); 1667 return ev_time ();
841} 1668}
842 1669
843#if EV_MULTIPLICITY 1670#if EV_MULTIPLICITY
844ev_tstamp 1671ev_tstamp
845ev_now (EV_P) 1672ev_now (EV_P) EV_THROW
846{ 1673{
847 return ev_rt_now; 1674 return ev_rt_now;
848} 1675}
849#endif 1676#endif
850 1677
851void 1678void
852ev_sleep (ev_tstamp delay) 1679ev_sleep (ev_tstamp delay) EV_THROW
853{ 1680{
854 if (delay > 0.) 1681 if (delay > 0.)
855 { 1682 {
856#if EV_USE_NANOSLEEP 1683#if EV_USE_NANOSLEEP
857 struct timespec ts; 1684 struct timespec ts;
858 1685
859 EV_TS_SET (ts, delay); 1686 EV_TS_SET (ts, delay);
860 nanosleep (&ts, 0); 1687 nanosleep (&ts, 0);
861#elif defined(_WIN32) 1688#elif defined _WIN32
862 Sleep ((unsigned long)(delay * 1e3)); 1689 Sleep ((unsigned long)(delay * 1e3));
863#else 1690#else
864 struct timeval tv; 1691 struct timeval tv;
865 1692
866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1693 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
885 1712
886 do 1713 do
887 ncur <<= 1; 1714 ncur <<= 1;
888 while (cnt > ncur); 1715 while (cnt > ncur);
889 1716
890 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1717 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1718 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892 { 1719 {
893 ncur *= elem; 1720 ncur *= elem;
894 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1721 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895 ncur = ncur - sizeof (void *) * 4; 1722 ncur = ncur - sizeof (void *) * 4;
… …
897 } 1724 }
898 1725
899 return ncur; 1726 return ncur;
900} 1727}
901 1728
902static noinline void * 1729static void * noinline ecb_cold
903array_realloc (int elem, void *base, int *cur, int cnt) 1730array_realloc (int elem, void *base, int *cur, int cnt)
904{ 1731{
905 *cur = array_nextsize (elem, *cur, cnt); 1732 *cur = array_nextsize (elem, *cur, cnt);
906 return ev_realloc (base, elem * *cur); 1733 return ev_realloc (base, elem * *cur);
907} 1734}
… …
910 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1737 memset ((void *)(base), 0, sizeof (*(base)) * (count))
911 1738
912#define array_needsize(type,base,cur,cnt,init) \ 1739#define array_needsize(type,base,cur,cnt,init) \
913 if (expect_false ((cnt) > (cur))) \ 1740 if (expect_false ((cnt) > (cur))) \
914 { \ 1741 { \
915 int ocur_ = (cur); \ 1742 int ecb_unused ocur_ = (cur); \
916 (base) = (type *)array_realloc \ 1743 (base) = (type *)array_realloc \
917 (sizeof (type), (base), &(cur), (cnt)); \ 1744 (sizeof (type), (base), &(cur), (cnt)); \
918 init ((base) + (ocur_), (cur) - ocur_); \ 1745 init ((base) + (ocur_), (cur) - ocur_); \
919 } 1746 }
920 1747
… …
938pendingcb (EV_P_ ev_prepare *w, int revents) 1765pendingcb (EV_P_ ev_prepare *w, int revents)
939{ 1766{
940} 1767}
941 1768
942void noinline 1769void noinline
943ev_feed_event (EV_P_ void *w, int revents) 1770ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944{ 1771{
945 W w_ = (W)w; 1772 W w_ = (W)w;
946 int pri = ABSPRI (w_); 1773 int pri = ABSPRI (w_);
947 1774
948 if (expect_false (w_->pending)) 1775 if (expect_false (w_->pending))
… …
952 w_->pending = ++pendingcnt [pri]; 1779 w_->pending = ++pendingcnt [pri];
953 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1780 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954 pendings [pri][w_->pending - 1].w = w_; 1781 pendings [pri][w_->pending - 1].w = w_;
955 pendings [pri][w_->pending - 1].events = revents; 1782 pendings [pri][w_->pending - 1].events = revents;
956 } 1783 }
1784
1785 pendingpri = NUMPRI - 1;
957} 1786}
958 1787
959inline_speed void 1788inline_speed void
960feed_reverse (EV_P_ W w) 1789feed_reverse (EV_P_ W w)
961{ 1790{
… …
1007 if (expect_true (!anfd->reify)) 1836 if (expect_true (!anfd->reify))
1008 fd_event_nocheck (EV_A_ fd, revents); 1837 fd_event_nocheck (EV_A_ fd, revents);
1009} 1838}
1010 1839
1011void 1840void
1012ev_feed_fd_event (EV_P_ int fd, int revents) 1841ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013{ 1842{
1014 if (fd >= 0 && fd < anfdmax) 1843 if (fd >= 0 && fd < anfdmax)
1015 fd_event_nocheck (EV_A_ fd, revents); 1844 fd_event_nocheck (EV_A_ fd, revents);
1016} 1845}
1017 1846
… …
1090 fdchanges [fdchangecnt - 1] = fd; 1919 fdchanges [fdchangecnt - 1] = fd;
1091 } 1920 }
1092} 1921}
1093 1922
1094/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1923/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095inline_speed void 1924inline_speed void ecb_cold
1096fd_kill (EV_P_ int fd) 1925fd_kill (EV_P_ int fd)
1097{ 1926{
1098 ev_io *w; 1927 ev_io *w;
1099 1928
1100 while ((w = (ev_io *)anfds [fd].head)) 1929 while ((w = (ev_io *)anfds [fd].head))
… …
1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1932 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104 } 1933 }
1105} 1934}
1106 1935
1107/* check whether the given fd is actually valid, for error recovery */ 1936/* check whether the given fd is actually valid, for error recovery */
1108inline_size int 1937inline_size int ecb_cold
1109fd_valid (int fd) 1938fd_valid (int fd)
1110{ 1939{
1111#ifdef _WIN32 1940#ifdef _WIN32
1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1941 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113#else 1942#else
1114 return fcntl (fd, F_GETFD) != -1; 1943 return fcntl (fd, F_GETFD) != -1;
1115#endif 1944#endif
1116} 1945}
1117 1946
1118/* called on EBADF to verify fds */ 1947/* called on EBADF to verify fds */
1119static void noinline 1948static void noinline ecb_cold
1120fd_ebadf (EV_P) 1949fd_ebadf (EV_P)
1121{ 1950{
1122 int fd; 1951 int fd;
1123 1952
1124 for (fd = 0; fd < anfdmax; ++fd) 1953 for (fd = 0; fd < anfdmax; ++fd)
… …
1126 if (!fd_valid (fd) && errno == EBADF) 1955 if (!fd_valid (fd) && errno == EBADF)
1127 fd_kill (EV_A_ fd); 1956 fd_kill (EV_A_ fd);
1128} 1957}
1129 1958
1130/* called on ENOMEM in select/poll to kill some fds and retry */ 1959/* called on ENOMEM in select/poll to kill some fds and retry */
1131static void noinline 1960static void noinline ecb_cold
1132fd_enomem (EV_P) 1961fd_enomem (EV_P)
1133{ 1962{
1134 int fd; 1963 int fd;
1135 1964
1136 for (fd = anfdmax; fd--; ) 1965 for (fd = anfdmax; fd--; )
… …
1331 2160
1332/*****************************************************************************/ 2161/*****************************************************************************/
1333 2162
1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2163#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335 2164
1336static void noinline 2165static void noinline ecb_cold
1337evpipe_init (EV_P) 2166evpipe_init (EV_P)
1338{ 2167{
1339 if (!ev_is_active (&pipe_w)) 2168 if (!ev_is_active (&pipe_w))
1340 { 2169 {
2170 int fds [2];
2171
1341# if EV_USE_EVENTFD 2172# if EV_USE_EVENTFD
2173 fds [0] = -1;
1342 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2174 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343 if (evfd < 0 && errno == EINVAL) 2175 if (fds [1] < 0 && errno == EINVAL)
1344 evfd = eventfd (0, 0); 2176 fds [1] = eventfd (0, 0);
1345 2177
1346 if (evfd >= 0) 2178 if (fds [1] < 0)
2179# endif
1347 { 2180 {
2181 while (pipe (fds))
2182 ev_syserr ("(libev) error creating signal/async pipe");
2183
2184 fd_intern (fds [0]);
2185 }
2186
1348 evpipe [0] = -1; 2187 evpipe [0] = fds [0];
1349 fd_intern (evfd); /* doing it twice doesn't hurt */ 2188
1350 ev_io_set (&pipe_w, evfd, EV_READ); 2189 if (evpipe [1] < 0)
2190 evpipe [1] = fds [1]; /* first call, set write fd */
2191 else
2192 {
2193 /* on subsequent calls, do not change evpipe [1] */
2194 /* so that evpipe_write can always rely on its value. */
2195 /* this branch does not do anything sensible on windows, */
2196 /* so must not be executed on windows */
2197
2198 dup2 (fds [1], evpipe [1]);
2199 close (fds [1]);
2200 }
2201
2202 fd_intern (evpipe [1]);
2203
2204 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2205 ev_io_start (EV_A_ &pipe_w);
2206 ev_unref (EV_A); /* watcher should not keep loop alive */
2207 }
2208}
2209
2210inline_speed void
2211evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2212{
2213 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2214
2215 if (expect_true (*flag))
2216 return;
2217
2218 *flag = 1;
2219 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2220
2221 pipe_write_skipped = 1;
2222
2223 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2224
2225 if (pipe_write_wanted)
2226 {
2227 int old_errno;
2228
2229 pipe_write_skipped = 0;
2230 ECB_MEMORY_FENCE_RELEASE;
2231
2232 old_errno = errno; /* save errno because write will clobber it */
2233
2234#if EV_USE_EVENTFD
2235 if (evpipe [0] < 0)
2236 {
2237 uint64_t counter = 1;
2238 write (evpipe [1], &counter, sizeof (uint64_t));
1351 } 2239 }
1352 else 2240 else
1353# endif 2241#endif
1354 { 2242 {
1355 while (pipe (evpipe)) 2243#ifdef _WIN32
1356 ev_syserr ("(libev) error creating signal/async pipe"); 2244 WSABUF buf;
1357 2245 DWORD sent;
1358 fd_intern (evpipe [0]); 2246 buf.buf = &buf;
1359 fd_intern (evpipe [1]); 2247 buf.len = 1;
1360 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2248 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2249#else
2250 write (evpipe [1], &(evpipe [1]), 1);
2251#endif
1361 } 2252 }
1362 2253
1363 ev_io_start (EV_A_ &pipe_w);
1364 ev_unref (EV_A); /* watcher should not keep loop alive */
1365 }
1366}
1367
1368inline_size void
1369evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1370{
1371 if (!*flag)
1372 {
1373 *flag = 1;
1374
1375 pipe_write_skipped = 1;
1376
1377 if (pipe_write_wanted)
1378 {
1379 int old_errno = errno; /* save errno because write will clobber it */
1380 char dummy;
1381
1382 pipe_write_skipped = 0;
1383
1384#if EV_USE_EVENTFD
1385 if (evfd >= 0)
1386 {
1387 uint64_t counter = 1;
1388 write (evfd, &counter, sizeof (uint64_t));
1389 }
1390 else
1391#endif
1392 {
1393 /* win32 people keep sending patches that change this write() to send() */
1394 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1395 /* so when you think this write should be a send instead, please find out */
1396 /* where your send() is from - it's definitely not the microsoft send, and */
1397 /* tell me. thank you. */
1398 write (evpipe [1], &dummy, 1);
1399 }
1400
1401 errno = old_errno; 2254 errno = old_errno;
1402 }
1403 } 2255 }
1404} 2256}
1405 2257
1406/* called whenever the libev signal pipe */ 2258/* called whenever the libev signal pipe */
1407/* got some events (signal, async) */ 2259/* got some events (signal, async) */
… …
1411 int i; 2263 int i;
1412 2264
1413 if (revents & EV_READ) 2265 if (revents & EV_READ)
1414 { 2266 {
1415#if EV_USE_EVENTFD 2267#if EV_USE_EVENTFD
1416 if (evfd >= 0) 2268 if (evpipe [0] < 0)
1417 { 2269 {
1418 uint64_t counter; 2270 uint64_t counter;
1419 read (evfd, &counter, sizeof (uint64_t)); 2271 read (evpipe [1], &counter, sizeof (uint64_t));
1420 } 2272 }
1421 else 2273 else
1422#endif 2274#endif
1423 { 2275 {
1424 char dummy; 2276 char dummy[4];
1425 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2277#ifdef _WIN32
2278 WSABUF buf;
2279 DWORD recvd;
2280 DWORD flags = 0;
2281 buf.buf = dummy;
2282 buf.len = sizeof (dummy);
2283 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2284#else
1426 read (evpipe [0], &dummy, 1); 2285 read (evpipe [0], &dummy, sizeof (dummy));
2286#endif
1427 } 2287 }
1428 } 2288 }
1429 2289
1430 pipe_write_skipped = 0; 2290 pipe_write_skipped = 0;
2291
2292 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1431 2293
1432#if EV_SIGNAL_ENABLE 2294#if EV_SIGNAL_ENABLE
1433 if (sig_pending) 2295 if (sig_pending)
1434 { 2296 {
1435 sig_pending = 0; 2297 sig_pending = 0;
2298
2299 ECB_MEMORY_FENCE;
1436 2300
1437 for (i = EV_NSIG - 1; i--; ) 2301 for (i = EV_NSIG - 1; i--; )
1438 if (expect_false (signals [i].pending)) 2302 if (expect_false (signals [i].pending))
1439 ev_feed_signal_event (EV_A_ i + 1); 2303 ev_feed_signal_event (EV_A_ i + 1);
1440 } 2304 }
… …
1442 2306
1443#if EV_ASYNC_ENABLE 2307#if EV_ASYNC_ENABLE
1444 if (async_pending) 2308 if (async_pending)
1445 { 2309 {
1446 async_pending = 0; 2310 async_pending = 0;
2311
2312 ECB_MEMORY_FENCE;
1447 2313
1448 for (i = asynccnt; i--; ) 2314 for (i = asynccnt; i--; )
1449 if (asyncs [i]->sent) 2315 if (asyncs [i]->sent)
1450 { 2316 {
1451 asyncs [i]->sent = 0; 2317 asyncs [i]->sent = 0;
2318 ECB_MEMORY_FENCE_RELEASE;
1452 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2319 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1453 } 2320 }
1454 } 2321 }
1455#endif 2322#endif
1456} 2323}
1457 2324
1458/*****************************************************************************/ 2325/*****************************************************************************/
1459 2326
1460void 2327void
1461ev_feed_signal (int signum) 2328ev_feed_signal (int signum) EV_THROW
1462{ 2329{
1463#if EV_MULTIPLICITY 2330#if EV_MULTIPLICITY
2331 EV_P;
2332 ECB_MEMORY_FENCE_ACQUIRE;
1464 EV_P = signals [signum - 1].loop; 2333 EV_A = signals [signum - 1].loop;
1465 2334
1466 if (!EV_A) 2335 if (!EV_A)
1467 return; 2336 return;
1468#endif 2337#endif
1469 2338
1470 evpipe_init (EV_A);
1471
1472 signals [signum - 1].pending = 1; 2339 signals [signum - 1].pending = 1;
1473 evpipe_write (EV_A_ &sig_pending); 2340 evpipe_write (EV_A_ &sig_pending);
1474} 2341}
1475 2342
1476static void 2343static void
… …
1482 2349
1483 ev_feed_signal (signum); 2350 ev_feed_signal (signum);
1484} 2351}
1485 2352
1486void noinline 2353void noinline
1487ev_feed_signal_event (EV_P_ int signum) 2354ev_feed_signal_event (EV_P_ int signum) EV_THROW
1488{ 2355{
1489 WL w; 2356 WL w;
1490 2357
1491 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2358 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1492 return; 2359 return;
1493 2360
1494 --signum; 2361 --signum;
1495 2362
1496#if EV_MULTIPLICITY 2363#if EV_MULTIPLICITY
… …
1500 if (expect_false (signals [signum].loop != EV_A)) 2367 if (expect_false (signals [signum].loop != EV_A))
1501 return; 2368 return;
1502#endif 2369#endif
1503 2370
1504 signals [signum].pending = 0; 2371 signals [signum].pending = 0;
2372 ECB_MEMORY_FENCE_RELEASE;
1505 2373
1506 for (w = signals [signum].head; w; w = w->next) 2374 for (w = signals [signum].head; w; w = w->next)
1507 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2375 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1508} 2376}
1509 2377
… …
1607#endif 2475#endif
1608#if EV_USE_SELECT 2476#if EV_USE_SELECT
1609# include "ev_select.c" 2477# include "ev_select.c"
1610#endif 2478#endif
1611 2479
1612int 2480int ecb_cold
1613ev_version_major (void) 2481ev_version_major (void) EV_THROW
1614{ 2482{
1615 return EV_VERSION_MAJOR; 2483 return EV_VERSION_MAJOR;
1616} 2484}
1617 2485
1618int 2486int ecb_cold
1619ev_version_minor (void) 2487ev_version_minor (void) EV_THROW
1620{ 2488{
1621 return EV_VERSION_MINOR; 2489 return EV_VERSION_MINOR;
1622} 2490}
1623 2491
1624/* return true if we are running with elevated privileges and should ignore env variables */ 2492/* return true if we are running with elevated privileges and should ignore env variables */
1625int inline_size 2493int inline_size ecb_cold
1626enable_secure (void) 2494enable_secure (void)
1627{ 2495{
1628#ifdef _WIN32 2496#ifdef _WIN32
1629 return 0; 2497 return 0;
1630#else 2498#else
1631 return getuid () != geteuid () 2499 return getuid () != geteuid ()
1632 || getgid () != getegid (); 2500 || getgid () != getegid ();
1633#endif 2501#endif
1634} 2502}
1635 2503
1636unsigned int 2504unsigned int ecb_cold
1637ev_supported_backends (void) 2505ev_supported_backends (void) EV_THROW
1638{ 2506{
1639 unsigned int flags = 0; 2507 unsigned int flags = 0;
1640 2508
1641 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2509 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1642 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2510 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1645 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2513 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1646 2514
1647 return flags; 2515 return flags;
1648} 2516}
1649 2517
1650unsigned int 2518unsigned int ecb_cold
1651ev_recommended_backends (void) 2519ev_recommended_backends (void) EV_THROW
1652{ 2520{
1653 unsigned int flags = ev_supported_backends (); 2521 unsigned int flags = ev_supported_backends ();
1654 2522
1655#ifndef __NetBSD__ 2523#ifndef __NetBSD__
1656 /* kqueue is borked on everything but netbsd apparently */ 2524 /* kqueue is borked on everything but netbsd apparently */
… …
1667#endif 2535#endif
1668 2536
1669 return flags; 2537 return flags;
1670} 2538}
1671 2539
1672unsigned int 2540unsigned int ecb_cold
1673ev_embeddable_backends (void) 2541ev_embeddable_backends (void) EV_THROW
1674{ 2542{
1675 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2543 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1676 2544
1677 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2545 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1678 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2546 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1680 2548
1681 return flags; 2549 return flags;
1682} 2550}
1683 2551
1684unsigned int 2552unsigned int
1685ev_backend (EV_P) 2553ev_backend (EV_P) EV_THROW
1686{ 2554{
1687 return backend; 2555 return backend;
1688} 2556}
1689 2557
1690#if EV_FEATURE_API 2558#if EV_FEATURE_API
1691unsigned int 2559unsigned int
1692ev_iteration (EV_P) 2560ev_iteration (EV_P) EV_THROW
1693{ 2561{
1694 return loop_count; 2562 return loop_count;
1695} 2563}
1696 2564
1697unsigned int 2565unsigned int
1698ev_depth (EV_P) 2566ev_depth (EV_P) EV_THROW
1699{ 2567{
1700 return loop_depth; 2568 return loop_depth;
1701} 2569}
1702 2570
1703void 2571void
1704ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2572ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1705{ 2573{
1706 io_blocktime = interval; 2574 io_blocktime = interval;
1707} 2575}
1708 2576
1709void 2577void
1710ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2578ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1711{ 2579{
1712 timeout_blocktime = interval; 2580 timeout_blocktime = interval;
1713} 2581}
1714 2582
1715void 2583void
1716ev_set_userdata (EV_P_ void *data) 2584ev_set_userdata (EV_P_ void *data) EV_THROW
1717{ 2585{
1718 userdata = data; 2586 userdata = data;
1719} 2587}
1720 2588
1721void * 2589void *
1722ev_userdata (EV_P) 2590ev_userdata (EV_P) EV_THROW
1723{ 2591{
1724 return userdata; 2592 return userdata;
1725} 2593}
1726 2594
2595void
1727void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2596ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1728{ 2597{
1729 invoke_cb = invoke_pending_cb; 2598 invoke_cb = invoke_pending_cb;
1730} 2599}
1731 2600
1732void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2601void
2602ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
1733{ 2603{
1734 release_cb = release; 2604 release_cb = release;
1735 acquire_cb = acquire; 2605 acquire_cb = acquire;
1736} 2606}
1737#endif 2607#endif
1738 2608
1739/* initialise a loop structure, must be zero-initialised */ 2609/* initialise a loop structure, must be zero-initialised */
1740static void noinline 2610static void noinline ecb_cold
1741loop_init (EV_P_ unsigned int flags) 2611loop_init (EV_P_ unsigned int flags) EV_THROW
1742{ 2612{
1743 if (!backend) 2613 if (!backend)
1744 { 2614 {
1745 origflags = flags; 2615 origflags = flags;
1746 2616
… …
1791#if EV_ASYNC_ENABLE 2661#if EV_ASYNC_ENABLE
1792 async_pending = 0; 2662 async_pending = 0;
1793#endif 2663#endif
1794 pipe_write_skipped = 0; 2664 pipe_write_skipped = 0;
1795 pipe_write_wanted = 0; 2665 pipe_write_wanted = 0;
2666 evpipe [0] = -1;
2667 evpipe [1] = -1;
1796#if EV_USE_INOTIFY 2668#if EV_USE_INOTIFY
1797 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2669 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1798#endif 2670#endif
1799#if EV_USE_SIGNALFD 2671#if EV_USE_SIGNALFD
1800 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2672 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
1830#endif 2702#endif
1831 } 2703 }
1832} 2704}
1833 2705
1834/* free up a loop structure */ 2706/* free up a loop structure */
1835void 2707void ecb_cold
1836ev_loop_destroy (EV_P) 2708ev_loop_destroy (EV_P)
1837{ 2709{
1838 int i; 2710 int i;
1839 2711
1840#if EV_MULTIPLICITY 2712#if EV_MULTIPLICITY
… …
1851 EV_INVOKE_PENDING; 2723 EV_INVOKE_PENDING;
1852 } 2724 }
1853#endif 2725#endif
1854 2726
1855#if EV_CHILD_ENABLE 2727#if EV_CHILD_ENABLE
1856 if (ev_is_active (&childev)) 2728 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1857 { 2729 {
1858 ev_ref (EV_A); /* child watcher */ 2730 ev_ref (EV_A); /* child watcher */
1859 ev_signal_stop (EV_A_ &childev); 2731 ev_signal_stop (EV_A_ &childev);
1860 } 2732 }
1861#endif 2733#endif
… …
1863 if (ev_is_active (&pipe_w)) 2735 if (ev_is_active (&pipe_w))
1864 { 2736 {
1865 /*ev_ref (EV_A);*/ 2737 /*ev_ref (EV_A);*/
1866 /*ev_io_stop (EV_A_ &pipe_w);*/ 2738 /*ev_io_stop (EV_A_ &pipe_w);*/
1867 2739
1868#if EV_USE_EVENTFD
1869 if (evfd >= 0)
1870 close (evfd);
1871#endif
1872
1873 if (evpipe [0] >= 0)
1874 {
1875 EV_WIN32_CLOSE_FD (evpipe [0]); 2740 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1876 EV_WIN32_CLOSE_FD (evpipe [1]); 2741 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1877 }
1878 } 2742 }
1879 2743
1880#if EV_USE_SIGNALFD 2744#if EV_USE_SIGNALFD
1881 if (ev_is_active (&sigfd_w)) 2745 if (ev_is_active (&sigfd_w))
1882 close (sigfd); 2746 close (sigfd);
… …
1968#endif 2832#endif
1969#if EV_USE_INOTIFY 2833#if EV_USE_INOTIFY
1970 infy_fork (EV_A); 2834 infy_fork (EV_A);
1971#endif 2835#endif
1972 2836
2837#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1973 if (ev_is_active (&pipe_w)) 2838 if (ev_is_active (&pipe_w))
1974 { 2839 {
1975 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2840 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1976 2841
1977 ev_ref (EV_A); 2842 ev_ref (EV_A);
1978 ev_io_stop (EV_A_ &pipe_w); 2843 ev_io_stop (EV_A_ &pipe_w);
1979 2844
1980#if EV_USE_EVENTFD
1981 if (evfd >= 0)
1982 close (evfd);
1983#endif
1984
1985 if (evpipe [0] >= 0) 2845 if (evpipe [0] >= 0)
1986 {
1987 EV_WIN32_CLOSE_FD (evpipe [0]); 2846 EV_WIN32_CLOSE_FD (evpipe [0]);
1988 EV_WIN32_CLOSE_FD (evpipe [1]);
1989 }
1990 2847
1991#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1992 evpipe_init (EV_A); 2848 evpipe_init (EV_A);
1993 /* now iterate over everything, in case we missed something */ 2849 /* iterate over everything, in case we missed something before */
1994 pipecb (EV_A_ &pipe_w, EV_READ); 2850 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1995#endif
1996 } 2851 }
2852#endif
1997 2853
1998 postfork = 0; 2854 postfork = 0;
1999} 2855}
2000 2856
2001#if EV_MULTIPLICITY 2857#if EV_MULTIPLICITY
2002 2858
2003struct ev_loop * 2859struct ev_loop * ecb_cold
2004ev_loop_new (unsigned int flags) 2860ev_loop_new (unsigned int flags) EV_THROW
2005{ 2861{
2006 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2862 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2007 2863
2008 memset (EV_A, 0, sizeof (struct ev_loop)); 2864 memset (EV_A, 0, sizeof (struct ev_loop));
2009 loop_init (EV_A_ flags); 2865 loop_init (EV_A_ flags);
… …
2016} 2872}
2017 2873
2018#endif /* multiplicity */ 2874#endif /* multiplicity */
2019 2875
2020#if EV_VERIFY 2876#if EV_VERIFY
2021static void noinline 2877static void noinline ecb_cold
2022verify_watcher (EV_P_ W w) 2878verify_watcher (EV_P_ W w)
2023{ 2879{
2024 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2880 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2025 2881
2026 if (w->pending) 2882 if (w->pending)
2027 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2883 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2028} 2884}
2029 2885
2030static void noinline 2886static void noinline ecb_cold
2031verify_heap (EV_P_ ANHE *heap, int N) 2887verify_heap (EV_P_ ANHE *heap, int N)
2032{ 2888{
2033 int i; 2889 int i;
2034 2890
2035 for (i = HEAP0; i < N + HEAP0; ++i) 2891 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2040 2896
2041 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2897 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2042 } 2898 }
2043} 2899}
2044 2900
2045static void noinline 2901static void noinline ecb_cold
2046array_verify (EV_P_ W *ws, int cnt) 2902array_verify (EV_P_ W *ws, int cnt)
2047{ 2903{
2048 while (cnt--) 2904 while (cnt--)
2049 { 2905 {
2050 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2906 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2052 } 2908 }
2053} 2909}
2054#endif 2910#endif
2055 2911
2056#if EV_FEATURE_API 2912#if EV_FEATURE_API
2057void 2913void ecb_cold
2058ev_verify (EV_P) 2914ev_verify (EV_P) EV_THROW
2059{ 2915{
2060#if EV_VERIFY 2916#if EV_VERIFY
2061 int i; 2917 int i;
2062 WL w; 2918 WL w, w2;
2063 2919
2064 assert (activecnt >= -1); 2920 assert (activecnt >= -1);
2065 2921
2066 assert (fdchangemax >= fdchangecnt); 2922 assert (fdchangemax >= fdchangecnt);
2067 for (i = 0; i < fdchangecnt; ++i) 2923 for (i = 0; i < fdchangecnt; ++i)
2068 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2924 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2069 2925
2070 assert (anfdmax >= 0); 2926 assert (anfdmax >= 0);
2071 for (i = 0; i < anfdmax; ++i) 2927 for (i = 0; i < anfdmax; ++i)
2928 {
2929 int j = 0;
2930
2072 for (w = anfds [i].head; w; w = w->next) 2931 for (w = w2 = anfds [i].head; w; w = w->next)
2073 { 2932 {
2074 verify_watcher (EV_A_ (W)w); 2933 verify_watcher (EV_A_ (W)w);
2934
2935 if (j++ & 1)
2936 {
2937 assert (("libev: io watcher list contains a loop", w != w2));
2938 w2 = w2->next;
2939 }
2940
2075 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2941 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2076 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2942 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2077 } 2943 }
2944 }
2078 2945
2079 assert (timermax >= timercnt); 2946 assert (timermax >= timercnt);
2080 verify_heap (EV_A_ timers, timercnt); 2947 verify_heap (EV_A_ timers, timercnt);
2081 2948
2082#if EV_PERIODIC_ENABLE 2949#if EV_PERIODIC_ENABLE
… …
2128#endif 2995#endif
2129} 2996}
2130#endif 2997#endif
2131 2998
2132#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
2133struct ev_loop * 3000struct ev_loop * ecb_cold
2134#else 3001#else
2135int 3002int
2136#endif 3003#endif
2137ev_default_loop (unsigned int flags) 3004ev_default_loop (unsigned int flags) EV_THROW
2138{ 3005{
2139 if (!ev_default_loop_ptr) 3006 if (!ev_default_loop_ptr)
2140 { 3007 {
2141#if EV_MULTIPLICITY 3008#if EV_MULTIPLICITY
2142 EV_P = ev_default_loop_ptr = &default_loop_struct; 3009 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2161 3028
2162 return ev_default_loop_ptr; 3029 return ev_default_loop_ptr;
2163} 3030}
2164 3031
2165void 3032void
2166ev_loop_fork (EV_P) 3033ev_loop_fork (EV_P) EV_THROW
2167{ 3034{
2168 postfork = 1; /* must be in line with ev_default_fork */ 3035 postfork = 1;
2169} 3036}
2170 3037
2171/*****************************************************************************/ 3038/*****************************************************************************/
2172 3039
2173void 3040void
… …
2175{ 3042{
2176 EV_CB_INVOKE ((W)w, revents); 3043 EV_CB_INVOKE ((W)w, revents);
2177} 3044}
2178 3045
2179unsigned int 3046unsigned int
2180ev_pending_count (EV_P) 3047ev_pending_count (EV_P) EV_THROW
2181{ 3048{
2182 int pri; 3049 int pri;
2183 unsigned int count = 0; 3050 unsigned int count = 0;
2184 3051
2185 for (pri = NUMPRI; pri--; ) 3052 for (pri = NUMPRI; pri--; )
… …
2189} 3056}
2190 3057
2191void noinline 3058void noinline
2192ev_invoke_pending (EV_P) 3059ev_invoke_pending (EV_P)
2193{ 3060{
2194 int pri; 3061 pendingpri = NUMPRI;
2195 3062
2196 for (pri = NUMPRI; pri--; ) 3063 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3064 {
3065 --pendingpri;
3066
2197 while (pendingcnt [pri]) 3067 while (pendingcnt [pendingpri])
2198 { 3068 {
2199 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3069 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2200 3070
2201 p->w->pending = 0; 3071 p->w->pending = 0;
2202 EV_CB_INVOKE (p->w, p->events); 3072 EV_CB_INVOKE (p->w, p->events);
2203 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2204 } 3074 }
3075 }
2205} 3076}
2206 3077
2207#if EV_IDLE_ENABLE 3078#if EV_IDLE_ENABLE
2208/* make idle watchers pending. this handles the "call-idle */ 3079/* make idle watchers pending. this handles the "call-idle */
2209/* only when higher priorities are idle" logic */ 3080/* only when higher priorities are idle" logic */
… …
2299{ 3170{
2300 EV_FREQUENT_CHECK; 3171 EV_FREQUENT_CHECK;
2301 3172
2302 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3173 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2303 { 3174 {
2304 int feed_count = 0;
2305
2306 do 3175 do
2307 { 3176 {
2308 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3177 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2309 3178
2310 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3179 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2337 } 3206 }
2338} 3207}
2339 3208
2340/* simply recalculate all periodics */ 3209/* simply recalculate all periodics */
2341/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3210/* TODO: maybe ensure that at least one event happens when jumping forward? */
2342static void noinline 3211static void noinline ecb_cold
2343periodics_reschedule (EV_P) 3212periodics_reschedule (EV_P)
2344{ 3213{
2345 int i; 3214 int i;
2346 3215
2347 /* adjust periodics after time jump */ 3216 /* adjust periodics after time jump */
… …
2360 reheap (periodics, periodiccnt); 3229 reheap (periodics, periodiccnt);
2361} 3230}
2362#endif 3231#endif
2363 3232
2364/* adjust all timers by a given offset */ 3233/* adjust all timers by a given offset */
2365static void noinline 3234static void noinline ecb_cold
2366timers_reschedule (EV_P_ ev_tstamp adjust) 3235timers_reschedule (EV_P_ ev_tstamp adjust)
2367{ 3236{
2368 int i; 3237 int i;
2369 3238
2370 for (i = 0; i < timercnt; ++i) 3239 for (i = 0; i < timercnt; ++i)
… …
2444 3313
2445 mn_now = ev_rt_now; 3314 mn_now = ev_rt_now;
2446 } 3315 }
2447} 3316}
2448 3317
2449void 3318int
2450ev_run (EV_P_ int flags) 3319ev_run (EV_P_ int flags)
2451{ 3320{
2452#if EV_FEATURE_API 3321#if EV_FEATURE_API
2453 ++loop_depth; 3322 ++loop_depth;
2454#endif 3323#endif
… …
2515 time_update (EV_A_ 1e100); 3384 time_update (EV_A_ 1e100);
2516 3385
2517 /* from now on, we want a pipe-wake-up */ 3386 /* from now on, we want a pipe-wake-up */
2518 pipe_write_wanted = 1; 3387 pipe_write_wanted = 1;
2519 3388
3389 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3390
2520 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3391 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2521 { 3392 {
2522 waittime = MAX_BLOCKTIME; 3393 waittime = MAX_BLOCKTIME;
2523 3394
2524 if (timercnt) 3395 if (timercnt)
… …
2565#endif 3436#endif
2566 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3437 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2567 backend_poll (EV_A_ waittime); 3438 backend_poll (EV_A_ waittime);
2568 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3439 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2569 3440
2570 pipe_write_wanted = 0; 3441 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2571 3442
3443 ECB_MEMORY_FENCE_ACQUIRE;
2572 if (pipe_write_skipped) 3444 if (pipe_write_skipped)
2573 { 3445 {
2574 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3446 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2575 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3447 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2576 } 3448 }
… …
2609 loop_done = EVBREAK_CANCEL; 3481 loop_done = EVBREAK_CANCEL;
2610 3482
2611#if EV_FEATURE_API 3483#if EV_FEATURE_API
2612 --loop_depth; 3484 --loop_depth;
2613#endif 3485#endif
3486
3487 return activecnt;
2614} 3488}
2615 3489
2616void 3490void
2617ev_break (EV_P_ int how) 3491ev_break (EV_P_ int how) EV_THROW
2618{ 3492{
2619 loop_done = how; 3493 loop_done = how;
2620} 3494}
2621 3495
2622void 3496void
2623ev_ref (EV_P) 3497ev_ref (EV_P) EV_THROW
2624{ 3498{
2625 ++activecnt; 3499 ++activecnt;
2626} 3500}
2627 3501
2628void 3502void
2629ev_unref (EV_P) 3503ev_unref (EV_P) EV_THROW
2630{ 3504{
2631 --activecnt; 3505 --activecnt;
2632} 3506}
2633 3507
2634void 3508void
2635ev_now_update (EV_P) 3509ev_now_update (EV_P) EV_THROW
2636{ 3510{
2637 time_update (EV_A_ 1e100); 3511 time_update (EV_A_ 1e100);
2638} 3512}
2639 3513
2640void 3514void
2641ev_suspend (EV_P) 3515ev_suspend (EV_P) EV_THROW
2642{ 3516{
2643 ev_now_update (EV_A); 3517 ev_now_update (EV_A);
2644} 3518}
2645 3519
2646void 3520void
2647ev_resume (EV_P) 3521ev_resume (EV_P) EV_THROW
2648{ 3522{
2649 ev_tstamp mn_prev = mn_now; 3523 ev_tstamp mn_prev = mn_now;
2650 3524
2651 ev_now_update (EV_A); 3525 ev_now_update (EV_A);
2652 timers_reschedule (EV_A_ mn_now - mn_prev); 3526 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2691 w->pending = 0; 3565 w->pending = 0;
2692 } 3566 }
2693} 3567}
2694 3568
2695int 3569int
2696ev_clear_pending (EV_P_ void *w) 3570ev_clear_pending (EV_P_ void *w) EV_THROW
2697{ 3571{
2698 W w_ = (W)w; 3572 W w_ = (W)w;
2699 int pending = w_->pending; 3573 int pending = w_->pending;
2700 3574
2701 if (expect_true (pending)) 3575 if (expect_true (pending))
… …
2734} 3608}
2735 3609
2736/*****************************************************************************/ 3610/*****************************************************************************/
2737 3611
2738void noinline 3612void noinline
2739ev_io_start (EV_P_ ev_io *w) 3613ev_io_start (EV_P_ ev_io *w) EV_THROW
2740{ 3614{
2741 int fd = w->fd; 3615 int fd = w->fd;
2742 3616
2743 if (expect_false (ev_is_active (w))) 3617 if (expect_false (ev_is_active (w)))
2744 return; 3618 return;
… …
2750 3624
2751 ev_start (EV_A_ (W)w, 1); 3625 ev_start (EV_A_ (W)w, 1);
2752 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3626 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2753 wlist_add (&anfds[fd].head, (WL)w); 3627 wlist_add (&anfds[fd].head, (WL)w);
2754 3628
3629 /* common bug, apparently */
3630 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3631
2755 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3632 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2756 w->events &= ~EV__IOFDSET; 3633 w->events &= ~EV__IOFDSET;
2757 3634
2758 EV_FREQUENT_CHECK; 3635 EV_FREQUENT_CHECK;
2759} 3636}
2760 3637
2761void noinline 3638void noinline
2762ev_io_stop (EV_P_ ev_io *w) 3639ev_io_stop (EV_P_ ev_io *w) EV_THROW
2763{ 3640{
2764 clear_pending (EV_A_ (W)w); 3641 clear_pending (EV_A_ (W)w);
2765 if (expect_false (!ev_is_active (w))) 3642 if (expect_false (!ev_is_active (w)))
2766 return; 3643 return;
2767 3644
… …
2776 3653
2777 EV_FREQUENT_CHECK; 3654 EV_FREQUENT_CHECK;
2778} 3655}
2779 3656
2780void noinline 3657void noinline
2781ev_timer_start (EV_P_ ev_timer *w) 3658ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2782{ 3659{
2783 if (expect_false (ev_is_active (w))) 3660 if (expect_false (ev_is_active (w)))
2784 return; 3661 return;
2785 3662
2786 ev_at (w) += mn_now; 3663 ev_at (w) += mn_now;
… …
2800 3677
2801 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3678 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2802} 3679}
2803 3680
2804void noinline 3681void noinline
2805ev_timer_stop (EV_P_ ev_timer *w) 3682ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2806{ 3683{
2807 clear_pending (EV_A_ (W)w); 3684 clear_pending (EV_A_ (W)w);
2808 if (expect_false (!ev_is_active (w))) 3685 if (expect_false (!ev_is_active (w)))
2809 return; 3686 return;
2810 3687
… …
2830 3707
2831 EV_FREQUENT_CHECK; 3708 EV_FREQUENT_CHECK;
2832} 3709}
2833 3710
2834void noinline 3711void noinline
2835ev_timer_again (EV_P_ ev_timer *w) 3712ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2836{ 3713{
2837 EV_FREQUENT_CHECK; 3714 EV_FREQUENT_CHECK;
3715
3716 clear_pending (EV_A_ (W)w);
2838 3717
2839 if (ev_is_active (w)) 3718 if (ev_is_active (w))
2840 { 3719 {
2841 if (w->repeat) 3720 if (w->repeat)
2842 { 3721 {
… …
2855 3734
2856 EV_FREQUENT_CHECK; 3735 EV_FREQUENT_CHECK;
2857} 3736}
2858 3737
2859ev_tstamp 3738ev_tstamp
2860ev_timer_remaining (EV_P_ ev_timer *w) 3739ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2861{ 3740{
2862 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3741 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2863} 3742}
2864 3743
2865#if EV_PERIODIC_ENABLE 3744#if EV_PERIODIC_ENABLE
2866void noinline 3745void noinline
2867ev_periodic_start (EV_P_ ev_periodic *w) 3746ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2868{ 3747{
2869 if (expect_false (ev_is_active (w))) 3748 if (expect_false (ev_is_active (w)))
2870 return; 3749 return;
2871 3750
2872 if (w->reschedule_cb) 3751 if (w->reschedule_cb)
… …
2892 3771
2893 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3772 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2894} 3773}
2895 3774
2896void noinline 3775void noinline
2897ev_periodic_stop (EV_P_ ev_periodic *w) 3776ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2898{ 3777{
2899 clear_pending (EV_A_ (W)w); 3778 clear_pending (EV_A_ (W)w);
2900 if (expect_false (!ev_is_active (w))) 3779 if (expect_false (!ev_is_active (w)))
2901 return; 3780 return;
2902 3781
… …
2920 3799
2921 EV_FREQUENT_CHECK; 3800 EV_FREQUENT_CHECK;
2922} 3801}
2923 3802
2924void noinline 3803void noinline
2925ev_periodic_again (EV_P_ ev_periodic *w) 3804ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2926{ 3805{
2927 /* TODO: use adjustheap and recalculation */ 3806 /* TODO: use adjustheap and recalculation */
2928 ev_periodic_stop (EV_A_ w); 3807 ev_periodic_stop (EV_A_ w);
2929 ev_periodic_start (EV_A_ w); 3808 ev_periodic_start (EV_A_ w);
2930} 3809}
… …
2935#endif 3814#endif
2936 3815
2937#if EV_SIGNAL_ENABLE 3816#if EV_SIGNAL_ENABLE
2938 3817
2939void noinline 3818void noinline
2940ev_signal_start (EV_P_ ev_signal *w) 3819ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2941{ 3820{
2942 if (expect_false (ev_is_active (w))) 3821 if (expect_false (ev_is_active (w)))
2943 return; 3822 return;
2944 3823
2945 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3824 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2947#if EV_MULTIPLICITY 3826#if EV_MULTIPLICITY
2948 assert (("libev: a signal must not be attached to two different loops", 3827 assert (("libev: a signal must not be attached to two different loops",
2949 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3828 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2950 3829
2951 signals [w->signum - 1].loop = EV_A; 3830 signals [w->signum - 1].loop = EV_A;
3831 ECB_MEMORY_FENCE_RELEASE;
2952#endif 3832#endif
2953 3833
2954 EV_FREQUENT_CHECK; 3834 EV_FREQUENT_CHECK;
2955 3835
2956#if EV_USE_SIGNALFD 3836#if EV_USE_SIGNALFD
… …
3016 3896
3017 EV_FREQUENT_CHECK; 3897 EV_FREQUENT_CHECK;
3018} 3898}
3019 3899
3020void noinline 3900void noinline
3021ev_signal_stop (EV_P_ ev_signal *w) 3901ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3022{ 3902{
3023 clear_pending (EV_A_ (W)w); 3903 clear_pending (EV_A_ (W)w);
3024 if (expect_false (!ev_is_active (w))) 3904 if (expect_false (!ev_is_active (w)))
3025 return; 3905 return;
3026 3906
… …
3057#endif 3937#endif
3058 3938
3059#if EV_CHILD_ENABLE 3939#if EV_CHILD_ENABLE
3060 3940
3061void 3941void
3062ev_child_start (EV_P_ ev_child *w) 3942ev_child_start (EV_P_ ev_child *w) EV_THROW
3063{ 3943{
3064#if EV_MULTIPLICITY 3944#if EV_MULTIPLICITY
3065 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3945 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3066#endif 3946#endif
3067 if (expect_false (ev_is_active (w))) 3947 if (expect_false (ev_is_active (w)))
… …
3074 3954
3075 EV_FREQUENT_CHECK; 3955 EV_FREQUENT_CHECK;
3076} 3956}
3077 3957
3078void 3958void
3079ev_child_stop (EV_P_ ev_child *w) 3959ev_child_stop (EV_P_ ev_child *w) EV_THROW
3080{ 3960{
3081 clear_pending (EV_A_ (W)w); 3961 clear_pending (EV_A_ (W)w);
3082 if (expect_false (!ev_is_active (w))) 3962 if (expect_false (!ev_is_active (w)))
3083 return; 3963 return;
3084 3964
… …
3111# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3991# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3112 3992
3113static void noinline 3993static void noinline
3114infy_add (EV_P_ ev_stat *w) 3994infy_add (EV_P_ ev_stat *w)
3115{ 3995{
3116 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); 3996 w->wd = inotify_add_watch (fs_fd, w->path,
3997 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3998 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3999 | IN_DONT_FOLLOW | IN_MASK_ADD);
3117 4000
3118 if (w->wd >= 0) 4001 if (w->wd >= 0)
3119 { 4002 {
3120 struct statfs sfs; 4003 struct statfs sfs;
3121 4004
… …
3125 4008
3126 if (!fs_2625) 4009 if (!fs_2625)
3127 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4010 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3128 else if (!statfs (w->path, &sfs) 4011 else if (!statfs (w->path, &sfs)
3129 && (sfs.f_type == 0x1373 /* devfs */ 4012 && (sfs.f_type == 0x1373 /* devfs */
4013 || sfs.f_type == 0x4006 /* fat */
4014 || sfs.f_type == 0x4d44 /* msdos */
3130 || sfs.f_type == 0xEF53 /* ext2/3 */ 4015 || sfs.f_type == 0xEF53 /* ext2/3 */
4016 || sfs.f_type == 0x72b6 /* jffs2 */
4017 || sfs.f_type == 0x858458f6 /* ramfs */
4018 || sfs.f_type == 0x5346544e /* ntfs */
3131 || sfs.f_type == 0x3153464a /* jfs */ 4019 || sfs.f_type == 0x3153464a /* jfs */
4020 || sfs.f_type == 0x9123683e /* btrfs */
3132 || sfs.f_type == 0x52654973 /* reiser3 */ 4021 || sfs.f_type == 0x52654973 /* reiser3 */
3133 || sfs.f_type == 0x01021994 /* tempfs */ 4022 || sfs.f_type == 0x01021994 /* tmpfs */
3134 || sfs.f_type == 0x58465342 /* xfs */)) 4023 || sfs.f_type == 0x58465342 /* xfs */))
3135 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4024 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3136 else 4025 else
3137 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4026 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3138 } 4027 }
… …
3236 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4125 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3237 ofs += sizeof (struct inotify_event) + ev->len; 4126 ofs += sizeof (struct inotify_event) + ev->len;
3238 } 4127 }
3239} 4128}
3240 4129
3241inline_size void 4130inline_size void ecb_cold
3242ev_check_2625 (EV_P) 4131ev_check_2625 (EV_P)
3243{ 4132{
3244 /* kernels < 2.6.25 are borked 4133 /* kernels < 2.6.25 are borked
3245 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4134 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3246 */ 4135 */
… …
3251} 4140}
3252 4141
3253inline_size int 4142inline_size int
3254infy_newfd (void) 4143infy_newfd (void)
3255{ 4144{
3256#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4145#if defined IN_CLOEXEC && defined IN_NONBLOCK
3257 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4146 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3258 if (fd >= 0) 4147 if (fd >= 0)
3259 return fd; 4148 return fd;
3260#endif 4149#endif
3261 return inotify_init (); 4150 return inotify_init ();
… …
3336#else 4225#else
3337# define EV_LSTAT(p,b) lstat (p, b) 4226# define EV_LSTAT(p,b) lstat (p, b)
3338#endif 4227#endif
3339 4228
3340void 4229void
3341ev_stat_stat (EV_P_ ev_stat *w) 4230ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3342{ 4231{
3343 if (lstat (w->path, &w->attr) < 0) 4232 if (lstat (w->path, &w->attr) < 0)
3344 w->attr.st_nlink = 0; 4233 w->attr.st_nlink = 0;
3345 else if (!w->attr.st_nlink) 4234 else if (!w->attr.st_nlink)
3346 w->attr.st_nlink = 1; 4235 w->attr.st_nlink = 1;
… …
3385 ev_feed_event (EV_A_ w, EV_STAT); 4274 ev_feed_event (EV_A_ w, EV_STAT);
3386 } 4275 }
3387} 4276}
3388 4277
3389void 4278void
3390ev_stat_start (EV_P_ ev_stat *w) 4279ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3391{ 4280{
3392 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3393 return; 4282 return;
3394 4283
3395 ev_stat_stat (EV_A_ w); 4284 ev_stat_stat (EV_A_ w);
… …
3416 4305
3417 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
3418} 4307}
3419 4308
3420void 4309void
3421ev_stat_stop (EV_P_ ev_stat *w) 4310ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3422{ 4311{
3423 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
3424 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
3425 return; 4314 return;
3426 4315
… …
3442} 4331}
3443#endif 4332#endif
3444 4333
3445#if EV_IDLE_ENABLE 4334#if EV_IDLE_ENABLE
3446void 4335void
3447ev_idle_start (EV_P_ ev_idle *w) 4336ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3448{ 4337{
3449 if (expect_false (ev_is_active (w))) 4338 if (expect_false (ev_is_active (w)))
3450 return; 4339 return;
3451 4340
3452 pri_adjust (EV_A_ (W)w); 4341 pri_adjust (EV_A_ (W)w);
… …
3465 4354
3466 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3467} 4356}
3468 4357
3469void 4358void
3470ev_idle_stop (EV_P_ ev_idle *w) 4359ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3471{ 4360{
3472 clear_pending (EV_A_ (W)w); 4361 clear_pending (EV_A_ (W)w);
3473 if (expect_false (!ev_is_active (w))) 4362 if (expect_false (!ev_is_active (w)))
3474 return; 4363 return;
3475 4364
… …
3489} 4378}
3490#endif 4379#endif
3491 4380
3492#if EV_PREPARE_ENABLE 4381#if EV_PREPARE_ENABLE
3493void 4382void
3494ev_prepare_start (EV_P_ ev_prepare *w) 4383ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3495{ 4384{
3496 if (expect_false (ev_is_active (w))) 4385 if (expect_false (ev_is_active (w)))
3497 return; 4386 return;
3498 4387
3499 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
… …
3504 4393
3505 EV_FREQUENT_CHECK; 4394 EV_FREQUENT_CHECK;
3506} 4395}
3507 4396
3508void 4397void
3509ev_prepare_stop (EV_P_ ev_prepare *w) 4398ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3510{ 4399{
3511 clear_pending (EV_A_ (W)w); 4400 clear_pending (EV_A_ (W)w);
3512 if (expect_false (!ev_is_active (w))) 4401 if (expect_false (!ev_is_active (w)))
3513 return; 4402 return;
3514 4403
… …
3527} 4416}
3528#endif 4417#endif
3529 4418
3530#if EV_CHECK_ENABLE 4419#if EV_CHECK_ENABLE
3531void 4420void
3532ev_check_start (EV_P_ ev_check *w) 4421ev_check_start (EV_P_ ev_check *w) EV_THROW
3533{ 4422{
3534 if (expect_false (ev_is_active (w))) 4423 if (expect_false (ev_is_active (w)))
3535 return; 4424 return;
3536 4425
3537 EV_FREQUENT_CHECK; 4426 EV_FREQUENT_CHECK;
… …
3542 4431
3543 EV_FREQUENT_CHECK; 4432 EV_FREQUENT_CHECK;
3544} 4433}
3545 4434
3546void 4435void
3547ev_check_stop (EV_P_ ev_check *w) 4436ev_check_stop (EV_P_ ev_check *w) EV_THROW
3548{ 4437{
3549 clear_pending (EV_A_ (W)w); 4438 clear_pending (EV_A_ (W)w);
3550 if (expect_false (!ev_is_active (w))) 4439 if (expect_false (!ev_is_active (w)))
3551 return; 4440 return;
3552 4441
… …
3565} 4454}
3566#endif 4455#endif
3567 4456
3568#if EV_EMBED_ENABLE 4457#if EV_EMBED_ENABLE
3569void noinline 4458void noinline
3570ev_embed_sweep (EV_P_ ev_embed *w) 4459ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3571{ 4460{
3572 ev_run (w->other, EVRUN_NOWAIT); 4461 ev_run (w->other, EVRUN_NOWAIT);
3573} 4462}
3574 4463
3575static void 4464static void
… …
3623 ev_idle_stop (EV_A_ idle); 4512 ev_idle_stop (EV_A_ idle);
3624} 4513}
3625#endif 4514#endif
3626 4515
3627void 4516void
3628ev_embed_start (EV_P_ ev_embed *w) 4517ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3629{ 4518{
3630 if (expect_false (ev_is_active (w))) 4519 if (expect_false (ev_is_active (w)))
3631 return; 4520 return;
3632 4521
3633 { 4522 {
… …
3654 4543
3655 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
3656} 4545}
3657 4546
3658void 4547void
3659ev_embed_stop (EV_P_ ev_embed *w) 4548ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3660{ 4549{
3661 clear_pending (EV_A_ (W)w); 4550 clear_pending (EV_A_ (W)w);
3662 if (expect_false (!ev_is_active (w))) 4551 if (expect_false (!ev_is_active (w)))
3663 return; 4552 return;
3664 4553
… …
3674} 4563}
3675#endif 4564#endif
3676 4565
3677#if EV_FORK_ENABLE 4566#if EV_FORK_ENABLE
3678void 4567void
3679ev_fork_start (EV_P_ ev_fork *w) 4568ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3680{ 4569{
3681 if (expect_false (ev_is_active (w))) 4570 if (expect_false (ev_is_active (w)))
3682 return; 4571 return;
3683 4572
3684 EV_FREQUENT_CHECK; 4573 EV_FREQUENT_CHECK;
… …
3689 4578
3690 EV_FREQUENT_CHECK; 4579 EV_FREQUENT_CHECK;
3691} 4580}
3692 4581
3693void 4582void
3694ev_fork_stop (EV_P_ ev_fork *w) 4583ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3695{ 4584{
3696 clear_pending (EV_A_ (W)w); 4585 clear_pending (EV_A_ (W)w);
3697 if (expect_false (!ev_is_active (w))) 4586 if (expect_false (!ev_is_active (w)))
3698 return; 4587 return;
3699 4588
… …
3712} 4601}
3713#endif 4602#endif
3714 4603
3715#if EV_CLEANUP_ENABLE 4604#if EV_CLEANUP_ENABLE
3716void 4605void
3717ev_cleanup_start (EV_P_ ev_cleanup *w) 4606ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3718{ 4607{
3719 if (expect_false (ev_is_active (w))) 4608 if (expect_false (ev_is_active (w)))
3720 return; 4609 return;
3721 4610
3722 EV_FREQUENT_CHECK; 4611 EV_FREQUENT_CHECK;
… …
3729 ev_unref (EV_A); 4618 ev_unref (EV_A);
3730 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
3731} 4620}
3732 4621
3733void 4622void
3734ev_cleanup_stop (EV_P_ ev_cleanup *w) 4623ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3735{ 4624{
3736 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
3737 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
3738 return; 4627 return;
3739 4628
… …
3753} 4642}
3754#endif 4643#endif
3755 4644
3756#if EV_ASYNC_ENABLE 4645#if EV_ASYNC_ENABLE
3757void 4646void
3758ev_async_start (EV_P_ ev_async *w) 4647ev_async_start (EV_P_ ev_async *w) EV_THROW
3759{ 4648{
3760 if (expect_false (ev_is_active (w))) 4649 if (expect_false (ev_is_active (w)))
3761 return; 4650 return;
3762 4651
3763 w->sent = 0; 4652 w->sent = 0;
… …
3772 4661
3773 EV_FREQUENT_CHECK; 4662 EV_FREQUENT_CHECK;
3774} 4663}
3775 4664
3776void 4665void
3777ev_async_stop (EV_P_ ev_async *w) 4666ev_async_stop (EV_P_ ev_async *w) EV_THROW
3778{ 4667{
3779 clear_pending (EV_A_ (W)w); 4668 clear_pending (EV_A_ (W)w);
3780 if (expect_false (!ev_is_active (w))) 4669 if (expect_false (!ev_is_active (w)))
3781 return; 4670 return;
3782 4671
… …
3793 4682
3794 EV_FREQUENT_CHECK; 4683 EV_FREQUENT_CHECK;
3795} 4684}
3796 4685
3797void 4686void
3798ev_async_send (EV_P_ ev_async *w) 4687ev_async_send (EV_P_ ev_async *w) EV_THROW
3799{ 4688{
3800 w->sent = 1; 4689 w->sent = 1;
3801 evpipe_write (EV_A_ &async_pending); 4690 evpipe_write (EV_A_ &async_pending);
3802} 4691}
3803#endif 4692#endif
… …
3840 4729
3841 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4730 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3842} 4731}
3843 4732
3844void 4733void
3845ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4734ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3846{ 4735{
3847 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4736 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3848 4737
3849 if (expect_false (!once)) 4738 if (expect_false (!once))
3850 { 4739 {
… …
3871} 4760}
3872 4761
3873/*****************************************************************************/ 4762/*****************************************************************************/
3874 4763
3875#if EV_WALK_ENABLE 4764#if EV_WALK_ENABLE
3876void 4765void ecb_cold
3877ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4766ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3878{ 4767{
3879 int i, j; 4768 int i, j;
3880 ev_watcher_list *wl, *wn; 4769 ev_watcher_list *wl, *wn;
3881 4770
3882 if (types & (EV_IO | EV_EMBED)) 4771 if (types & (EV_IO | EV_EMBED))
… …
3925 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4814 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3926#endif 4815#endif
3927 4816
3928#if EV_IDLE_ENABLE 4817#if EV_IDLE_ENABLE
3929 if (types & EV_IDLE) 4818 if (types & EV_IDLE)
3930 for (j = NUMPRI; i--; ) 4819 for (j = NUMPRI; j--; )
3931 for (i = idlecnt [j]; i--; ) 4820 for (i = idlecnt [j]; i--; )
3932 cb (EV_A_ EV_IDLE, idles [j][i]); 4821 cb (EV_A_ EV_IDLE, idles [j][i]);
3933#endif 4822#endif
3934 4823
3935#if EV_FORK_ENABLE 4824#if EV_FORK_ENABLE
… …
3988 4877
3989#if EV_MULTIPLICITY 4878#if EV_MULTIPLICITY
3990 #include "ev_wrap.h" 4879 #include "ev_wrap.h"
3991#endif 4880#endif
3992 4881
3993EV_CPP(})
3994

Diff Legend

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