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Comparing libev/ev.c (file contents):
Revision 1.377 by root, Wed Jun 8 13:11:55 2011 UTC vs.
Revision 1.473 by root, Tue Sep 9 21:51:35 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 *
… …
43# include EV_CONFIG_H 43# include EV_CONFIG_H
44# else 44# else
45# include "config.h" 45# include "config.h"
46# endif 46# endif
47 47
48#if HAVE_FLOOR 48# if HAVE_FLOOR
49# ifndef EV_USE_FLOOR 49# ifndef EV_USE_FLOOR
50# define EV_USE_FLOOR 1 50# define EV_USE_FLOOR 1
51# endif
51# endif 52# endif
52#endif
53 53
54# if HAVE_CLOCK_SYSCALL 54# if HAVE_CLOCK_SYSCALL
55# ifndef EV_USE_CLOCK_SYSCALL 55# ifndef EV_USE_CLOCK_SYSCALL
56# define EV_USE_CLOCK_SYSCALL 1 56# define EV_USE_CLOCK_SYSCALL 1
57# ifndef EV_USE_REALTIME 57# ifndef EV_USE_REALTIME
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
261#if !(_POSIX_TIMERS > 0)
262# ifndef EV_USE_MONOTONIC
263# define EV_USE_MONOTONIC 0
264# endif
265# ifndef EV_USE_REALTIME
266# define EV_USE_REALTIME 0
267# endif
268#endif
269
254#ifndef EV_USE_MONOTONIC 270#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 271# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 272# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 273# else
258# define EV_USE_MONOTONIC 0 274# define EV_USE_MONOTONIC 0
259# endif 275# endif
260#endif 276#endif
… …
347 363
348#ifndef EV_HEAP_CACHE_AT 364#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 366#endif
351 367
368#ifdef ANDROID
369/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT
371# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL
374# define EV_USE_CLOCK_SYSCALL 0
375#endif
376
377/* aix's poll.h seems to cause lots of trouble */
378#ifdef _AIX
379/* AIX has a completely broken poll.h header */
380# undef EV_USE_POLL
381# define EV_USE_POLL 0
382#endif
383
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 384/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 385/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 386#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 387# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 388# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 390# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 391# define EV_USE_MONOTONIC 1
360# else 392# else
… …
363# endif 395# endif
364#endif 396#endif
365 397
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 398/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 399
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 400#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 401# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 402# define EV_USE_MONOTONIC 0
377#endif 403#endif
378 404
… …
386# define EV_USE_INOTIFY 0 412# define EV_USE_INOTIFY 0
387#endif 413#endif
388 414
389#if !EV_USE_NANOSLEEP 415#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 416/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 417# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 418# include <sys/select.h>
393# endif 419# endif
394#endif 420#endif
395 421
396#if EV_USE_INOTIFY 422#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 425/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 426# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 427# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 428# define EV_USE_INOTIFY 0
403# endif 429# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 430#endif
409 431
410#if EV_USE_EVENTFD 432#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 433/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 434# include <stdint.h>
… …
464#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 486#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
465 487
466#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 488#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
467#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 489#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
468 490
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */
493/*
494 * libecb - http://software.schmorp.de/pkg/libecb
495 *
496 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved.
499 *
500 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met:
502 *
503 * 1. Redistributions of source code must retain the above copyright notice,
504 * this list of conditions and the following disclaimer.
505 *
506 * 2. Redistributions in binary form must reproduce the above copyright
507 * notice, this list of conditions and the following disclaimer in the
508 * documentation and/or other materials provided with the distribution.
509 *
510 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
511 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER-
512 * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
513 * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE-
514 * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
515 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
516 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
517 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
518 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
519 * OF THE POSSIBILITY OF SUCH DAMAGE.
520 *
521 * Alternatively, the contents of this file may be used under the terms of
522 * the GNU General Public License ("GPL") version 2 or any later version,
523 * in which case the provisions of the GPL are applicable instead of
524 * the above. If you wish to allow the use of your version of this file
525 * only under the terms of the GPL and not to allow others to use your
526 * version of this file under the BSD license, indicate your decision
527 * by deleting the provisions above and replace them with the notice
528 * and other provisions required by the GPL. If you do not delete the
529 * provisions above, a recipient may use your version of this file under
530 * either the BSD or the GPL.
531 */
532
533#ifndef ECB_H
534#define ECB_H
535
536/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010003
538
539#ifdef _WIN32
540 typedef signed char int8_t;
541 typedef unsigned char uint8_t;
542 typedef signed short int16_t;
543 typedef unsigned short uint16_t;
544 typedef signed int int32_t;
545 typedef unsigned int uint32_t;
469#if __GNUC__ >= 4 546 #if __GNUC__
470# define expect(expr,value) __builtin_expect ((expr),(value)) 547 typedef signed long long int64_t;
471# define noinline __attribute__ ((noinline)) 548 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t;
552 #endif
553 #ifdef _WIN64
554 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t;
557 #else
558 #define ECB_PTRSIZE 4
559 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t;
561 #endif
472#else 562#else
473# define expect(expr,value) (expr) 563 #include <inttypes.h>
474# define noinline 564 #if UINTMAX_MAX > 0xffffffffU
475# if __STDC_VERSION__ < 199901L && __GNUC__ < 2 565 #define ECB_PTRSIZE 8
476# define inline 566 #else
567 #define ECB_PTRSIZE 4
568 #endif
477# endif 569#endif
570
571/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
573 #if _ILP32
574 #define ECB_AMD64_X32 1
575 #else
576 #define ECB_AMD64 1
478#endif 577 #endif
578#endif
479 579
580/* many compilers define _GNUC_ to some versions but then only implement
581 * what their idiot authors think are the "more important" extensions,
582 * causing enormous grief in return for some better fake benchmark numbers.
583 * or so.
584 * we try to detect these and simply assume they are not gcc - if they have
585 * an issue with that they should have done it right in the first place.
586 */
587#ifndef ECB_GCC_VERSION
588 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
589 #define ECB_GCC_VERSION(major,minor) 0
590 #else
591 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
592 #endif
593#endif
594
595#define ECB_CPP (__cplusplus+0)
596#define ECB_CPP11 (__cplusplus >= 201103L)
597
598#if ECB_CPP
599 #define ECB_C 0
600 #define ECB_STDC_VERSION 0
601#else
602 #define ECB_C 1
603 #define ECB_STDC_VERSION __STDC_VERSION__
604#endif
605
606#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
607#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
608
609#if ECB_CPP
610 #define ECB_EXTERN_C extern "C"
611 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
612 #define ECB_EXTERN_C_END }
613#else
614 #define ECB_EXTERN_C extern
615 #define ECB_EXTERN_C_BEG
616 #define ECB_EXTERN_C_END
617#endif
618
619/*****************************************************************************/
620
621/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
622/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
623
624#if ECB_NO_THREADS
625 #define ECB_NO_SMP 1
626#endif
627
628#if ECB_NO_SMP
629 #define ECB_MEMORY_FENCE do { } while (0)
630#endif
631
632#ifndef ECB_MEMORY_FENCE
633 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
634 #if __i386 || __i386__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
636 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
637 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
638 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
639 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
640 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
641 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
642 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
644 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
645 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
646 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
647 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
648 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
649 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
650 #elif __aarch64__
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
652 #elif (__sparc || __sparc__) && !__sparcv8
653 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
654 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
655 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
656 #elif defined __s390__ || defined __s390x__
657 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
658 #elif defined __mips__
659 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
660 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
662 #elif defined __alpha__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
664 #elif defined __hppa__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
667 #elif defined __ia64__
668 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
669 #elif defined __m68k__
670 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
671 #elif defined __m88k__
672 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
673 #elif defined __sh__
674 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
675 #endif
676 #endif
677#endif
678
679#ifndef ECB_MEMORY_FENCE
680 #if ECB_GCC_VERSION(4,7)
681 /* see comment below (stdatomic.h) about the C11 memory model. */
682 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
683 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
684 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
685
686 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
687 * without risking compile time errors with other compilers. We *could*
688 * define our own ecb_clang_has_feature, but I just can't be bothered to work
689 * around this shit time and again.
690 * #elif defined __clang && __has_feature (cxx_atomic)
691 * // see comment below (stdatomic.h) about the C11 memory model.
692 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
693 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
694 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
695 */
696
697 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
698 #define ECB_MEMORY_FENCE __sync_synchronize ()
699 #elif _MSC_VER >= 1500 /* VC++ 2008 */
700 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
701 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
702 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
703 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
704 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
705 #elif _MSC_VER >= 1400 /* VC++ 2005 */
706 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
707 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
708 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
709 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
710 #elif defined _WIN32
711 #include <WinNT.h>
712 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
713 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
714 #include <mbarrier.h>
715 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
716 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
717 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
718 #elif __xlC__
719 #define ECB_MEMORY_FENCE __sync ()
720 #endif
721#endif
722
723#ifndef ECB_MEMORY_FENCE
724 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
725 /* we assume that these memory fences work on all variables/all memory accesses, */
726 /* not just C11 atomics and atomic accesses */
727 #include <stdatomic.h>
728 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
729 /* any fence other than seq_cst, which isn't very efficient for us. */
730 /* Why that is, we don't know - either the C11 memory model is quite useless */
731 /* for most usages, or gcc and clang have a bug */
732 /* I *currently* lean towards the latter, and inefficiently implement */
733 /* all three of ecb's fences as a seq_cst fence */
734 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
735 /* for all __atomic_thread_fence's except seq_cst */
736 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
737 #endif
738#endif
739
740#ifndef ECB_MEMORY_FENCE
741 #if !ECB_AVOID_PTHREADS
742 /*
743 * if you get undefined symbol references to pthread_mutex_lock,
744 * or failure to find pthread.h, then you should implement
745 * the ECB_MEMORY_FENCE operations for your cpu/compiler
746 * OR provide pthread.h and link against the posix thread library
747 * of your system.
748 */
749 #include <pthread.h>
750 #define ECB_NEEDS_PTHREADS 1
751 #define ECB_MEMORY_FENCE_NEEDS_PTHREADS 1
752
753 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
754 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
755 #endif
756#endif
757
758#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
759 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
760#endif
761
762#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
763 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
764#endif
765
766/*****************************************************************************/
767
768#if __cplusplus
769 #define ecb_inline static inline
770#elif ECB_GCC_VERSION(2,5)
771 #define ecb_inline static __inline__
772#elif ECB_C99
773 #define ecb_inline static inline
774#else
775 #define ecb_inline static
776#endif
777
778#if ECB_GCC_VERSION(3,3)
779 #define ecb_restrict __restrict__
780#elif ECB_C99
781 #define ecb_restrict restrict
782#else
783 #define ecb_restrict
784#endif
785
786typedef int ecb_bool;
787
788#define ECB_CONCAT_(a, b) a ## b
789#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
790#define ECB_STRINGIFY_(a) # a
791#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
792
793#define ecb_function_ ecb_inline
794
795#if ECB_GCC_VERSION(3,1)
796 #define ecb_attribute(attrlist) __attribute__(attrlist)
797 #define ecb_is_constant(expr) __builtin_constant_p (expr)
798 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
799 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
800#else
801 #define ecb_attribute(attrlist)
802
803 /* possible C11 impl for integral types
804 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
805 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
806
807 #define ecb_is_constant(expr) 0
808 #define ecb_expect(expr,value) (expr)
809 #define ecb_prefetch(addr,rw,locality)
810#endif
811
812/* no emulation for ecb_decltype */
813#if ECB_GCC_VERSION(4,5)
814 #define ecb_decltype(x) __decltype(x)
815#elif ECB_GCC_VERSION(3,0)
816 #define ecb_decltype(x) __typeof(x)
817#endif
818
819#if _MSC_VER >= 1300
820 #define ecb_deprecated __declspec(deprecated)
821#else
822 #define ecb_deprecated ecb_attribute ((__deprecated__))
823#endif
824
825#define ecb_noinline ecb_attribute ((__noinline__))
826#define ecb_unused ecb_attribute ((__unused__))
827#define ecb_const ecb_attribute ((__const__))
828#define ecb_pure ecb_attribute ((__pure__))
829
830/* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
831#if ECB_C11
832 #define ecb_noreturn _Noreturn
833#else
834 #define ecb_noreturn ecb_attribute ((__noreturn__))
835#endif
836
837#if ECB_GCC_VERSION(4,3)
838 #define ecb_artificial ecb_attribute ((__artificial__))
839 #define ecb_hot ecb_attribute ((__hot__))
840 #define ecb_cold ecb_attribute ((__cold__))
841#else
842 #define ecb_artificial
843 #define ecb_hot
844 #define ecb_cold
845#endif
846
847/* put around conditional expressions if you are very sure that the */
848/* expression is mostly true or mostly false. note that these return */
849/* booleans, not the expression. */
480#define expect_false(expr) expect ((expr) != 0, 0) 850#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
481#define expect_true(expr) expect ((expr) != 0, 1) 851#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
852/* for compatibility to the rest of the world */
853#define ecb_likely(expr) ecb_expect_true (expr)
854#define ecb_unlikely(expr) ecb_expect_false (expr)
855
856/* count trailing zero bits and count # of one bits */
857#if ECB_GCC_VERSION(3,4)
858 /* we assume int == 32 bit, long == 32 or 64 bit and long long == 64 bit */
859 #define ecb_ld32(x) (__builtin_clz (x) ^ 31)
860 #define ecb_ld64(x) (__builtin_clzll (x) ^ 63)
861 #define ecb_ctz32(x) __builtin_ctz (x)
862 #define ecb_ctz64(x) __builtin_ctzll (x)
863 #define ecb_popcount32(x) __builtin_popcount (x)
864 /* no popcountll */
865#else
866 ecb_function_ int ecb_ctz32 (uint32_t x) ecb_const;
867 ecb_function_ int
868 ecb_ctz32 (uint32_t x)
869 {
870 int r = 0;
871
872 x &= ~x + 1; /* this isolates the lowest bit */
873
874#if ECB_branchless_on_i386
875 r += !!(x & 0xaaaaaaaa) << 0;
876 r += !!(x & 0xcccccccc) << 1;
877 r += !!(x & 0xf0f0f0f0) << 2;
878 r += !!(x & 0xff00ff00) << 3;
879 r += !!(x & 0xffff0000) << 4;
880#else
881 if (x & 0xaaaaaaaa) r += 1;
882 if (x & 0xcccccccc) r += 2;
883 if (x & 0xf0f0f0f0) r += 4;
884 if (x & 0xff00ff00) r += 8;
885 if (x & 0xffff0000) r += 16;
886#endif
887
888 return r;
889 }
890
891 ecb_function_ int ecb_ctz64 (uint64_t x) ecb_const;
892 ecb_function_ int
893 ecb_ctz64 (uint64_t x)
894 {
895 int shift = x & 0xffffffffU ? 0 : 32;
896 return ecb_ctz32 (x >> shift) + shift;
897 }
898
899 ecb_function_ int ecb_popcount32 (uint32_t x) ecb_const;
900 ecb_function_ int
901 ecb_popcount32 (uint32_t x)
902 {
903 x -= (x >> 1) & 0x55555555;
904 x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
905 x = ((x >> 4) + x) & 0x0f0f0f0f;
906 x *= 0x01010101;
907
908 return x >> 24;
909 }
910
911 ecb_function_ int ecb_ld32 (uint32_t x) ecb_const;
912 ecb_function_ int ecb_ld32 (uint32_t x)
913 {
914 int r = 0;
915
916 if (x >> 16) { x >>= 16; r += 16; }
917 if (x >> 8) { x >>= 8; r += 8; }
918 if (x >> 4) { x >>= 4; r += 4; }
919 if (x >> 2) { x >>= 2; r += 2; }
920 if (x >> 1) { r += 1; }
921
922 return r;
923 }
924
925 ecb_function_ int ecb_ld64 (uint64_t x) ecb_const;
926 ecb_function_ int ecb_ld64 (uint64_t x)
927 {
928 int r = 0;
929
930 if (x >> 32) { x >>= 32; r += 32; }
931
932 return r + ecb_ld32 (x);
933 }
934#endif
935
936ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
937ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
938ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
939ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
940
941ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
942ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
943{
944 return ( (x * 0x0802U & 0x22110U)
945 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
946}
947
948ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
949ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
950{
951 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
952 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
953 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
954 x = ( x >> 8 ) | ( x << 8);
955
956 return x;
957}
958
959ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
960ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
961{
962 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
963 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
964 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
965 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
966 x = ( x >> 16 ) | ( x << 16);
967
968 return x;
969}
970
971/* popcount64 is only available on 64 bit cpus as gcc builtin */
972/* so for this version we are lazy */
973ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
974ecb_function_ int
975ecb_popcount64 (uint64_t x)
976{
977 return ecb_popcount32 (x) + ecb_popcount32 (x >> 32);
978}
979
980ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) ecb_const;
981ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) ecb_const;
982ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) ecb_const;
983ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) ecb_const;
984ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) ecb_const;
985ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) ecb_const;
986ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) ecb_const;
987ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) ecb_const;
988
989ecb_inline uint8_t ecb_rotl8 (uint8_t x, unsigned int count) { return (x >> ( 8 - count)) | (x << count); }
990ecb_inline uint8_t ecb_rotr8 (uint8_t x, unsigned int count) { return (x << ( 8 - count)) | (x >> count); }
991ecb_inline uint16_t ecb_rotl16 (uint16_t x, unsigned int count) { return (x >> (16 - count)) | (x << count); }
992ecb_inline uint16_t ecb_rotr16 (uint16_t x, unsigned int count) { return (x << (16 - count)) | (x >> count); }
993ecb_inline uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
994ecb_inline uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
995ecb_inline uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
996ecb_inline uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
997
998#if ECB_GCC_VERSION(4,3)
999 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1000 #define ecb_bswap32(x) __builtin_bswap32 (x)
1001 #define ecb_bswap64(x) __builtin_bswap64 (x)
1002#else
1003 ecb_function_ uint16_t ecb_bswap16 (uint16_t x) ecb_const;
1004 ecb_function_ uint16_t
1005 ecb_bswap16 (uint16_t x)
1006 {
1007 return ecb_rotl16 (x, 8);
1008 }
1009
1010 ecb_function_ uint32_t ecb_bswap32 (uint32_t x) ecb_const;
1011 ecb_function_ uint32_t
1012 ecb_bswap32 (uint32_t x)
1013 {
1014 return (((uint32_t)ecb_bswap16 (x)) << 16) | ecb_bswap16 (x >> 16);
1015 }
1016
1017 ecb_function_ uint64_t ecb_bswap64 (uint64_t x) ecb_const;
1018 ecb_function_ uint64_t
1019 ecb_bswap64 (uint64_t x)
1020 {
1021 return (((uint64_t)ecb_bswap32 (x)) << 32) | ecb_bswap32 (x >> 32);
1022 }
1023#endif
1024
1025#if ECB_GCC_VERSION(4,5)
1026 #define ecb_unreachable() __builtin_unreachable ()
1027#else
1028 /* this seems to work fine, but gcc always emits a warning for it :/ */
1029 ecb_inline void ecb_unreachable (void) ecb_noreturn;
1030 ecb_inline void ecb_unreachable (void) { }
1031#endif
1032
1033/* try to tell the compiler that some condition is definitely true */
1034#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1035
1036ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
1037ecb_inline unsigned char
1038ecb_byteorder_helper (void)
1039{
1040 /* the union code still generates code under pressure in gcc, */
1041 /* but less than using pointers, and always seems to */
1042 /* successfully return a constant. */
1043 /* the reason why we have this horrible preprocessor mess */
1044 /* is to avoid it in all cases, at least on common architectures */
1045 /* or when using a recent enough gcc version (>= 4.6) */
1046#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1047 return 0x44;
1048#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1049 return 0x44;
1050#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1051 return 0x11;
1052#else
1053 union
1054 {
1055 uint32_t i;
1056 uint8_t c;
1057 } u = { 0x11223344 };
1058 return u.c;
1059#endif
1060}
1061
1062ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
1063ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
1064ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
1065ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
1066
1067#if ECB_GCC_VERSION(3,0) || ECB_C99
1068 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1069#else
1070 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1071#endif
1072
1073#if __cplusplus
1074 template<typename T>
1075 static inline T ecb_div_rd (T val, T div)
1076 {
1077 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1078 }
1079 template<typename T>
1080 static inline T ecb_div_ru (T val, T div)
1081 {
1082 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1083 }
1084#else
1085 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1086 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
1087#endif
1088
1089#if ecb_cplusplus_does_not_suck
1090 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
1091 template<typename T, int N>
1092 static inline int ecb_array_length (const T (&arr)[N])
1093 {
1094 return N;
1095 }
1096#else
1097 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1098#endif
1099
1100/*******************************************************************************/
1101/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1102
1103/* basically, everything uses "ieee pure-endian" floating point numbers */
1104/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1105#if 0 \
1106 || __i386 || __i386__ \
1107 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1108 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1109 || defined __s390__ || defined __s390x__ \
1110 || defined __mips__ \
1111 || defined __alpha__ \
1112 || defined __hppa__ \
1113 || defined __ia64__ \
1114 || defined __m68k__ \
1115 || defined __m88k__ \
1116 || defined __sh__ \
1117 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1118 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1119 || defined __aarch64__
1120 #define ECB_STDFP 1
1121 #include <string.h> /* for memcpy */
1122#else
1123 #define ECB_STDFP 0
1124#endif
1125
1126#ifndef ECB_NO_LIBM
1127
1128 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1129
1130 /* only the oldest of old doesn't have this one. solaris. */
1131 #ifdef INFINITY
1132 #define ECB_INFINITY INFINITY
1133 #else
1134 #define ECB_INFINITY HUGE_VAL
1135 #endif
1136
1137 #ifdef NAN
1138 #define ECB_NAN NAN
1139 #else
1140 #define ECB_NAN ECB_INFINITY
1141 #endif
1142
1143 /* converts an ieee half/binary16 to a float */
1144 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1145 ecb_function_ float
1146 ecb_binary16_to_float (uint16_t x)
1147 {
1148 int e = (x >> 10) & 0x1f;
1149 int m = x & 0x3ff;
1150 float r;
1151
1152 if (!e ) r = ldexpf (m , -24);
1153 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1154 else if (m ) r = ECB_NAN;
1155 else r = ECB_INFINITY;
1156
1157 return x & 0x8000 ? -r : r;
1158 }
1159
1160 /* convert a float to ieee single/binary32 */
1161 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1162 ecb_function_ uint32_t
1163 ecb_float_to_binary32 (float x)
1164 {
1165 uint32_t r;
1166
1167 #if ECB_STDFP
1168 memcpy (&r, &x, 4);
1169 #else
1170 /* slow emulation, works for anything but -0 */
1171 uint32_t m;
1172 int e;
1173
1174 if (x == 0e0f ) return 0x00000000U;
1175 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1176 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1177 if (x != x ) return 0x7fbfffffU;
1178
1179 m = frexpf (x, &e) * 0x1000000U;
1180
1181 r = m & 0x80000000U;
1182
1183 if (r)
1184 m = -m;
1185
1186 if (e <= -126)
1187 {
1188 m &= 0xffffffU;
1189 m >>= (-125 - e);
1190 e = -126;
1191 }
1192
1193 r |= (e + 126) << 23;
1194 r |= m & 0x7fffffU;
1195 #endif
1196
1197 return r;
1198 }
1199
1200 /* converts an ieee single/binary32 to a float */
1201 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1202 ecb_function_ float
1203 ecb_binary32_to_float (uint32_t x)
1204 {
1205 float r;
1206
1207 #if ECB_STDFP
1208 memcpy (&r, &x, 4);
1209 #else
1210 /* emulation, only works for normals and subnormals and +0 */
1211 int neg = x >> 31;
1212 int e = (x >> 23) & 0xffU;
1213
1214 x &= 0x7fffffU;
1215
1216 if (e)
1217 x |= 0x800000U;
1218 else
1219 e = 1;
1220
1221 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1222 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1223
1224 r = neg ? -r : r;
1225 #endif
1226
1227 return r;
1228 }
1229
1230 /* convert a double to ieee double/binary64 */
1231 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1232 ecb_function_ uint64_t
1233 ecb_double_to_binary64 (double x)
1234 {
1235 uint64_t r;
1236
1237 #if ECB_STDFP
1238 memcpy (&r, &x, 8);
1239 #else
1240 /* slow emulation, works for anything but -0 */
1241 uint64_t m;
1242 int e;
1243
1244 if (x == 0e0 ) return 0x0000000000000000U;
1245 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1246 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1247 if (x != x ) return 0X7ff7ffffffffffffU;
1248
1249 m = frexp (x, &e) * 0x20000000000000U;
1250
1251 r = m & 0x8000000000000000;;
1252
1253 if (r)
1254 m = -m;
1255
1256 if (e <= -1022)
1257 {
1258 m &= 0x1fffffffffffffU;
1259 m >>= (-1021 - e);
1260 e = -1022;
1261 }
1262
1263 r |= ((uint64_t)(e + 1022)) << 52;
1264 r |= m & 0xfffffffffffffU;
1265 #endif
1266
1267 return r;
1268 }
1269
1270 /* converts an ieee double/binary64 to a double */
1271 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1272 ecb_function_ double
1273 ecb_binary64_to_double (uint64_t x)
1274 {
1275 double r;
1276
1277 #if ECB_STDFP
1278 memcpy (&r, &x, 8);
1279 #else
1280 /* emulation, only works for normals and subnormals and +0 */
1281 int neg = x >> 63;
1282 int e = (x >> 52) & 0x7ffU;
1283
1284 x &= 0xfffffffffffffU;
1285
1286 if (e)
1287 x |= 0x10000000000000U;
1288 else
1289 e = 1;
1290
1291 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1292 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1293
1294 r = neg ? -r : r;
1295 #endif
1296
1297 return r;
1298 }
1299
1300#endif
1301
1302#endif
1303
1304/* ECB.H END */
1305
1306#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1307/* if your architecture doesn't need memory fences, e.g. because it is
1308 * single-cpu/core, or if you use libev in a project that doesn't use libev
1309 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
1310 * libev, in which cases the memory fences become nops.
1311 * alternatively, you can remove this #error and link against libpthread,
1312 * which will then provide the memory fences.
1313 */
1314# error "memory fences not defined for your architecture, please report"
1315#endif
1316
1317#ifndef ECB_MEMORY_FENCE
1318# define ECB_MEMORY_FENCE do { } while (0)
1319# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1320# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1321#endif
1322
1323#define expect_false(cond) ecb_expect_false (cond)
1324#define expect_true(cond) ecb_expect_true (cond)
1325#define noinline ecb_noinline
1326
482#define inline_size static inline 1327#define inline_size ecb_inline
483 1328
484#if EV_FEATURE_CODE 1329#if EV_FEATURE_CODE
485# define inline_speed static inline 1330# define inline_speed ecb_inline
486#else 1331#else
487# define inline_speed static noinline 1332# define inline_speed static noinline
488#endif 1333#endif
489 1334
490#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1335#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
… …
581 1426
582#ifdef __linux 1427#ifdef __linux
583# include <sys/utsname.h> 1428# include <sys/utsname.h>
584#endif 1429#endif
585 1430
586static unsigned int noinline 1431static unsigned int noinline ecb_cold
587ev_linux_version (void) 1432ev_linux_version (void)
588{ 1433{
589#ifdef __linux 1434#ifdef __linux
590 unsigned int v = 0; 1435 unsigned int v = 0;
591 struct utsname buf; 1436 struct utsname buf;
… …
620} 1465}
621 1466
622/*****************************************************************************/ 1467/*****************************************************************************/
623 1468
624#if EV_AVOID_STDIO 1469#if EV_AVOID_STDIO
625static void noinline 1470static void noinline ecb_cold
626ev_printerr (const char *msg) 1471ev_printerr (const char *msg)
627{ 1472{
628 write (STDERR_FILENO, msg, strlen (msg)); 1473 write (STDERR_FILENO, msg, strlen (msg));
629} 1474}
630#endif 1475#endif
631 1476
632static void (*syserr_cb)(const char *msg); 1477static void (*syserr_cb)(const char *msg) EV_THROW;
633 1478
634void 1479void ecb_cold
635ev_set_syserr_cb (void (*cb)(const char *msg)) 1480ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
636{ 1481{
637 syserr_cb = cb; 1482 syserr_cb = cb;
638} 1483}
639 1484
640static void noinline 1485static void noinline ecb_cold
641ev_syserr (const char *msg) 1486ev_syserr (const char *msg)
642{ 1487{
643 if (!msg) 1488 if (!msg)
644 msg = "(libev) system error"; 1489 msg = "(libev) system error";
645 1490
… …
658 abort (); 1503 abort ();
659 } 1504 }
660} 1505}
661 1506
662static void * 1507static void *
663ev_realloc_emul (void *ptr, long size) 1508ev_realloc_emul (void *ptr, long size) EV_THROW
664{ 1509{
665#if __GLIBC__
666 return realloc (ptr, size);
667#else
668 /* some systems, notably openbsd and darwin, fail to properly 1510 /* some systems, notably openbsd and darwin, fail to properly
669 * implement realloc (x, 0) (as required by both ansi c-89 and 1511 * implement realloc (x, 0) (as required by both ansi c-89 and
670 * the single unix specification, so work around them here. 1512 * the single unix specification, so work around them here.
1513 * recently, also (at least) fedora and debian started breaking it,
1514 * despite documenting it otherwise.
671 */ 1515 */
672 1516
673 if (size) 1517 if (size)
674 return realloc (ptr, size); 1518 return realloc (ptr, size);
675 1519
676 free (ptr); 1520 free (ptr);
677 return 0; 1521 return 0;
678#endif
679} 1522}
680 1523
681static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1524static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
682 1525
683void 1526void ecb_cold
684ev_set_allocator (void *(*cb)(void *ptr, long size)) 1527ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
685{ 1528{
686 alloc = cb; 1529 alloc = cb;
687} 1530}
688 1531
689inline_speed void * 1532inline_speed void *
… …
777 #undef VAR 1620 #undef VAR
778 }; 1621 };
779 #include "ev_wrap.h" 1622 #include "ev_wrap.h"
780 1623
781 static struct ev_loop default_loop_struct; 1624 static struct ev_loop default_loop_struct;
782 struct ev_loop *ev_default_loop_ptr; 1625 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
783 1626
784#else 1627#else
785 1628
786 ev_tstamp ev_rt_now; 1629 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; 1630 #define VAR(name,decl) static decl;
788 #include "ev_vars.h" 1631 #include "ev_vars.h"
789 #undef VAR 1632 #undef VAR
790 1633
791 static int ev_default_loop_ptr; 1634 static int ev_default_loop_ptr;
… …
806 1649
807/*****************************************************************************/ 1650/*****************************************************************************/
808 1651
809#ifndef EV_HAVE_EV_TIME 1652#ifndef EV_HAVE_EV_TIME
810ev_tstamp 1653ev_tstamp
811ev_time (void) 1654ev_time (void) EV_THROW
812{ 1655{
813#if EV_USE_REALTIME 1656#if EV_USE_REALTIME
814 if (expect_true (have_realtime)) 1657 if (expect_true (have_realtime))
815 { 1658 {
816 struct timespec ts; 1659 struct timespec ts;
… …
840 return ev_time (); 1683 return ev_time ();
841} 1684}
842 1685
843#if EV_MULTIPLICITY 1686#if EV_MULTIPLICITY
844ev_tstamp 1687ev_tstamp
845ev_now (EV_P) 1688ev_now (EV_P) EV_THROW
846{ 1689{
847 return ev_rt_now; 1690 return ev_rt_now;
848} 1691}
849#endif 1692#endif
850 1693
851void 1694void
852ev_sleep (ev_tstamp delay) 1695ev_sleep (ev_tstamp delay) EV_THROW
853{ 1696{
854 if (delay > 0.) 1697 if (delay > 0.)
855 { 1698 {
856#if EV_USE_NANOSLEEP 1699#if EV_USE_NANOSLEEP
857 struct timespec ts; 1700 struct timespec ts;
858 1701
859 EV_TS_SET (ts, delay); 1702 EV_TS_SET (ts, delay);
860 nanosleep (&ts, 0); 1703 nanosleep (&ts, 0);
861#elif defined(_WIN32) 1704#elif defined _WIN32
862 Sleep ((unsigned long)(delay * 1e3)); 1705 Sleep ((unsigned long)(delay * 1e3));
863#else 1706#else
864 struct timeval tv; 1707 struct timeval tv;
865 1708
866 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1709 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
885 1728
886 do 1729 do
887 ncur <<= 1; 1730 ncur <<= 1;
888 while (cnt > ncur); 1731 while (cnt > ncur);
889 1732
890 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1733 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
891 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1734 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
892 { 1735 {
893 ncur *= elem; 1736 ncur *= elem;
894 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1737 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
895 ncur = ncur - sizeof (void *) * 4; 1738 ncur = ncur - sizeof (void *) * 4;
… …
897 } 1740 }
898 1741
899 return ncur; 1742 return ncur;
900} 1743}
901 1744
902static noinline void * 1745static void * noinline ecb_cold
903array_realloc (int elem, void *base, int *cur, int cnt) 1746array_realloc (int elem, void *base, int *cur, int cnt)
904{ 1747{
905 *cur = array_nextsize (elem, *cur, cnt); 1748 *cur = array_nextsize (elem, *cur, cnt);
906 return ev_realloc (base, elem * *cur); 1749 return ev_realloc (base, elem * *cur);
907} 1750}
… …
910 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 1753 memset ((void *)(base), 0, sizeof (*(base)) * (count))
911 1754
912#define array_needsize(type,base,cur,cnt,init) \ 1755#define array_needsize(type,base,cur,cnt,init) \
913 if (expect_false ((cnt) > (cur))) \ 1756 if (expect_false ((cnt) > (cur))) \
914 { \ 1757 { \
915 int ocur_ = (cur); \ 1758 int ecb_unused ocur_ = (cur); \
916 (base) = (type *)array_realloc \ 1759 (base) = (type *)array_realloc \
917 (sizeof (type), (base), &(cur), (cnt)); \ 1760 (sizeof (type), (base), &(cur), (cnt)); \
918 init ((base) + (ocur_), (cur) - ocur_); \ 1761 init ((base) + (ocur_), (cur) - ocur_); \
919 } 1762 }
920 1763
… …
938pendingcb (EV_P_ ev_prepare *w, int revents) 1781pendingcb (EV_P_ ev_prepare *w, int revents)
939{ 1782{
940} 1783}
941 1784
942void noinline 1785void noinline
943ev_feed_event (EV_P_ void *w, int revents) 1786ev_feed_event (EV_P_ void *w, int revents) EV_THROW
944{ 1787{
945 W w_ = (W)w; 1788 W w_ = (W)w;
946 int pri = ABSPRI (w_); 1789 int pri = ABSPRI (w_);
947 1790
948 if (expect_false (w_->pending)) 1791 if (expect_false (w_->pending))
… …
952 w_->pending = ++pendingcnt [pri]; 1795 w_->pending = ++pendingcnt [pri];
953 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1796 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
954 pendings [pri][w_->pending - 1].w = w_; 1797 pendings [pri][w_->pending - 1].w = w_;
955 pendings [pri][w_->pending - 1].events = revents; 1798 pendings [pri][w_->pending - 1].events = revents;
956 } 1799 }
1800
1801 pendingpri = NUMPRI - 1;
957} 1802}
958 1803
959inline_speed void 1804inline_speed void
960feed_reverse (EV_P_ W w) 1805feed_reverse (EV_P_ W w)
961{ 1806{
… …
1007 if (expect_true (!anfd->reify)) 1852 if (expect_true (!anfd->reify))
1008 fd_event_nocheck (EV_A_ fd, revents); 1853 fd_event_nocheck (EV_A_ fd, revents);
1009} 1854}
1010 1855
1011void 1856void
1012ev_feed_fd_event (EV_P_ int fd, int revents) 1857ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1013{ 1858{
1014 if (fd >= 0 && fd < anfdmax) 1859 if (fd >= 0 && fd < anfdmax)
1015 fd_event_nocheck (EV_A_ fd, revents); 1860 fd_event_nocheck (EV_A_ fd, revents);
1016} 1861}
1017 1862
… …
1090 fdchanges [fdchangecnt - 1] = fd; 1935 fdchanges [fdchangecnt - 1] = fd;
1091 } 1936 }
1092} 1937}
1093 1938
1094/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 1939/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1095inline_speed void 1940inline_speed void ecb_cold
1096fd_kill (EV_P_ int fd) 1941fd_kill (EV_P_ int fd)
1097{ 1942{
1098 ev_io *w; 1943 ev_io *w;
1099 1944
1100 while ((w = (ev_io *)anfds [fd].head)) 1945 while ((w = (ev_io *)anfds [fd].head))
… …
1103 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 1948 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1104 } 1949 }
1105} 1950}
1106 1951
1107/* check whether the given fd is actually valid, for error recovery */ 1952/* check whether the given fd is actually valid, for error recovery */
1108inline_size int 1953inline_size int ecb_cold
1109fd_valid (int fd) 1954fd_valid (int fd)
1110{ 1955{
1111#ifdef _WIN32 1956#ifdef _WIN32
1112 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 1957 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1113#else 1958#else
1114 return fcntl (fd, F_GETFD) != -1; 1959 return fcntl (fd, F_GETFD) != -1;
1115#endif 1960#endif
1116} 1961}
1117 1962
1118/* called on EBADF to verify fds */ 1963/* called on EBADF to verify fds */
1119static void noinline 1964static void noinline ecb_cold
1120fd_ebadf (EV_P) 1965fd_ebadf (EV_P)
1121{ 1966{
1122 int fd; 1967 int fd;
1123 1968
1124 for (fd = 0; fd < anfdmax; ++fd) 1969 for (fd = 0; fd < anfdmax; ++fd)
… …
1126 if (!fd_valid (fd) && errno == EBADF) 1971 if (!fd_valid (fd) && errno == EBADF)
1127 fd_kill (EV_A_ fd); 1972 fd_kill (EV_A_ fd);
1128} 1973}
1129 1974
1130/* called on ENOMEM in select/poll to kill some fds and retry */ 1975/* called on ENOMEM in select/poll to kill some fds and retry */
1131static void noinline 1976static void noinline ecb_cold
1132fd_enomem (EV_P) 1977fd_enomem (EV_P)
1133{ 1978{
1134 int fd; 1979 int fd;
1135 1980
1136 for (fd = anfdmax; fd--; ) 1981 for (fd = anfdmax; fd--; )
… …
1331 2176
1332/*****************************************************************************/ 2177/*****************************************************************************/
1333 2178
1334#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2179#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1335 2180
1336static void noinline 2181static void noinline ecb_cold
1337evpipe_init (EV_P) 2182evpipe_init (EV_P)
1338{ 2183{
1339 if (!ev_is_active (&pipe_w)) 2184 if (!ev_is_active (&pipe_w))
1340 { 2185 {
2186 int fds [2];
2187
1341# if EV_USE_EVENTFD 2188# if EV_USE_EVENTFD
2189 fds [0] = -1;
1342 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2190 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1343 if (evfd < 0 && errno == EINVAL) 2191 if (fds [1] < 0 && errno == EINVAL)
1344 evfd = eventfd (0, 0); 2192 fds [1] = eventfd (0, 0);
1345 2193
1346 if (evfd >= 0) 2194 if (fds [1] < 0)
2195# endif
1347 { 2196 {
2197 while (pipe (fds))
2198 ev_syserr ("(libev) error creating signal/async pipe");
2199
2200 fd_intern (fds [0]);
2201 }
2202
1348 evpipe [0] = -1; 2203 evpipe [0] = fds [0];
1349 fd_intern (evfd); /* doing it twice doesn't hurt */ 2204
1350 ev_io_set (&pipe_w, evfd, EV_READ); 2205 if (evpipe [1] < 0)
2206 evpipe [1] = fds [1]; /* first call, set write fd */
2207 else
2208 {
2209 /* on subsequent calls, do not change evpipe [1] */
2210 /* so that evpipe_write can always rely on its value. */
2211 /* this branch does not do anything sensible on windows, */
2212 /* so must not be executed on windows */
2213
2214 dup2 (fds [1], evpipe [1]);
2215 close (fds [1]);
2216 }
2217
2218 fd_intern (evpipe [1]);
2219
2220 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2221 ev_io_start (EV_A_ &pipe_w);
2222 ev_unref (EV_A); /* watcher should not keep loop alive */
2223 }
2224}
2225
2226inline_speed void
2227evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2228{
2229 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2230
2231 if (expect_true (*flag))
2232 return;
2233
2234 *flag = 1;
2235 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2236
2237 pipe_write_skipped = 1;
2238
2239 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2240
2241 if (pipe_write_wanted)
2242 {
2243 int old_errno;
2244
2245 pipe_write_skipped = 0;
2246 ECB_MEMORY_FENCE_RELEASE;
2247
2248 old_errno = errno; /* save errno because write will clobber it */
2249
2250#if EV_USE_EVENTFD
2251 if (evpipe [0] < 0)
2252 {
2253 uint64_t counter = 1;
2254 write (evpipe [1], &counter, sizeof (uint64_t));
1351 } 2255 }
1352 else 2256 else
1353# endif 2257#endif
1354 { 2258 {
1355 while (pipe (evpipe)) 2259#ifdef _WIN32
1356 ev_syserr ("(libev) error creating signal/async pipe"); 2260 WSABUF buf;
1357 2261 DWORD sent;
1358 fd_intern (evpipe [0]); 2262 buf.buf = &buf;
1359 fd_intern (evpipe [1]); 2263 buf.len = 1;
1360 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2264 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2265#else
2266 write (evpipe [1], &(evpipe [1]), 1);
2267#endif
1361 } 2268 }
1362
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 int old_errno = errno; /* save errno because write might clobber it */
1374 char dummy;
1375
1376 *flag = 1;
1377
1378#if EV_USE_EVENTFD
1379 if (evfd >= 0)
1380 {
1381 uint64_t counter = 1;
1382 write (evfd, &counter, sizeof (uint64_t));
1383 }
1384 else
1385#endif
1386 /* win32 people keep sending patches that change this write() to send() */
1387 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1388 /* so when you think this write should be a send instead, please find out */
1389 /* where your send() is from - it's definitely not the microsoft send, and */
1390 /* tell me. thank you. */
1391 write (evpipe [1], &dummy, 1);
1392 2269
1393 errno = old_errno; 2270 errno = old_errno;
1394 } 2271 }
1395} 2272}
1396 2273
… …
1399static void 2276static void
1400pipecb (EV_P_ ev_io *iow, int revents) 2277pipecb (EV_P_ ev_io *iow, int revents)
1401{ 2278{
1402 int i; 2279 int i;
1403 2280
2281 if (revents & EV_READ)
2282 {
1404#if EV_USE_EVENTFD 2283#if EV_USE_EVENTFD
1405 if (evfd >= 0) 2284 if (evpipe [0] < 0)
1406 { 2285 {
1407 uint64_t counter; 2286 uint64_t counter;
1408 read (evfd, &counter, sizeof (uint64_t)); 2287 read (evpipe [1], &counter, sizeof (uint64_t));
1409 } 2288 }
1410 else 2289 else
1411#endif 2290#endif
1412 { 2291 {
1413 char dummy; 2292 char dummy[4];
1414 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2293#ifdef _WIN32
2294 WSABUF buf;
2295 DWORD recvd;
2296 DWORD flags = 0;
2297 buf.buf = dummy;
2298 buf.len = sizeof (dummy);
2299 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2300#else
1415 read (evpipe [0], &dummy, 1); 2301 read (evpipe [0], &dummy, sizeof (dummy));
2302#endif
2303 }
1416 } 2304 }
2305
2306 pipe_write_skipped = 0;
2307
2308 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1417 2309
1418#if EV_SIGNAL_ENABLE 2310#if EV_SIGNAL_ENABLE
1419 if (sig_pending) 2311 if (sig_pending)
1420 { 2312 {
1421 sig_pending = 0; 2313 sig_pending = 0;
2314
2315 ECB_MEMORY_FENCE;
1422 2316
1423 for (i = EV_NSIG - 1; i--; ) 2317 for (i = EV_NSIG - 1; i--; )
1424 if (expect_false (signals [i].pending)) 2318 if (expect_false (signals [i].pending))
1425 ev_feed_signal_event (EV_A_ i + 1); 2319 ev_feed_signal_event (EV_A_ i + 1);
1426 } 2320 }
… …
1428 2322
1429#if EV_ASYNC_ENABLE 2323#if EV_ASYNC_ENABLE
1430 if (async_pending) 2324 if (async_pending)
1431 { 2325 {
1432 async_pending = 0; 2326 async_pending = 0;
2327
2328 ECB_MEMORY_FENCE;
1433 2329
1434 for (i = asynccnt; i--; ) 2330 for (i = asynccnt; i--; )
1435 if (asyncs [i]->sent) 2331 if (asyncs [i]->sent)
1436 { 2332 {
1437 asyncs [i]->sent = 0; 2333 asyncs [i]->sent = 0;
2334 ECB_MEMORY_FENCE_RELEASE;
1438 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2335 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1439 } 2336 }
1440 } 2337 }
1441#endif 2338#endif
1442} 2339}
1443 2340
1444/*****************************************************************************/ 2341/*****************************************************************************/
1445 2342
1446void 2343void
1447ev_feed_signal (int signum) 2344ev_feed_signal (int signum) EV_THROW
1448{ 2345{
1449#if EV_MULTIPLICITY 2346#if EV_MULTIPLICITY
2347 EV_P;
2348 ECB_MEMORY_FENCE_ACQUIRE;
1450 EV_P = signals [signum - 1].loop; 2349 EV_A = signals [signum - 1].loop;
1451 2350
1452 if (!EV_A) 2351 if (!EV_A)
1453 return; 2352 return;
1454#endif 2353#endif
1455 2354
… …
1466 2365
1467 ev_feed_signal (signum); 2366 ev_feed_signal (signum);
1468} 2367}
1469 2368
1470void noinline 2369void noinline
1471ev_feed_signal_event (EV_P_ int signum) 2370ev_feed_signal_event (EV_P_ int signum) EV_THROW
1472{ 2371{
1473 WL w; 2372 WL w;
1474 2373
1475 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2374 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1476 return; 2375 return;
1477 2376
1478 --signum; 2377 --signum;
1479 2378
1480#if EV_MULTIPLICITY 2379#if EV_MULTIPLICITY
… …
1484 if (expect_false (signals [signum].loop != EV_A)) 2383 if (expect_false (signals [signum].loop != EV_A))
1485 return; 2384 return;
1486#endif 2385#endif
1487 2386
1488 signals [signum].pending = 0; 2387 signals [signum].pending = 0;
2388 ECB_MEMORY_FENCE_RELEASE;
1489 2389
1490 for (w = signals [signum].head; w; w = w->next) 2390 for (w = signals [signum].head; w; w = w->next)
1491 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2391 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1492} 2392}
1493 2393
… …
1591#endif 2491#endif
1592#if EV_USE_SELECT 2492#if EV_USE_SELECT
1593# include "ev_select.c" 2493# include "ev_select.c"
1594#endif 2494#endif
1595 2495
1596int 2496int ecb_cold
1597ev_version_major (void) 2497ev_version_major (void) EV_THROW
1598{ 2498{
1599 return EV_VERSION_MAJOR; 2499 return EV_VERSION_MAJOR;
1600} 2500}
1601 2501
1602int 2502int ecb_cold
1603ev_version_minor (void) 2503ev_version_minor (void) EV_THROW
1604{ 2504{
1605 return EV_VERSION_MINOR; 2505 return EV_VERSION_MINOR;
1606} 2506}
1607 2507
1608/* return true if we are running with elevated privileges and should ignore env variables */ 2508/* return true if we are running with elevated privileges and should ignore env variables */
1609int inline_size 2509int inline_size ecb_cold
1610enable_secure (void) 2510enable_secure (void)
1611{ 2511{
1612#ifdef _WIN32 2512#ifdef _WIN32
1613 return 0; 2513 return 0;
1614#else 2514#else
1615 return getuid () != geteuid () 2515 return getuid () != geteuid ()
1616 || getgid () != getegid (); 2516 || getgid () != getegid ();
1617#endif 2517#endif
1618} 2518}
1619 2519
1620unsigned int 2520unsigned int ecb_cold
1621ev_supported_backends (void) 2521ev_supported_backends (void) EV_THROW
1622{ 2522{
1623 unsigned int flags = 0; 2523 unsigned int flags = 0;
1624 2524
1625 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2525 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
1626 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2526 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
1629 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2529 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT;
1630 2530
1631 return flags; 2531 return flags;
1632} 2532}
1633 2533
1634unsigned int 2534unsigned int ecb_cold
1635ev_recommended_backends (void) 2535ev_recommended_backends (void) EV_THROW
1636{ 2536{
1637 unsigned int flags = ev_supported_backends (); 2537 unsigned int flags = ev_supported_backends ();
1638 2538
1639#ifndef __NetBSD__ 2539#ifndef __NetBSD__
1640 /* kqueue is borked on everything but netbsd apparently */ 2540 /* kqueue is borked on everything but netbsd apparently */
… …
1651#endif 2551#endif
1652 2552
1653 return flags; 2553 return flags;
1654} 2554}
1655 2555
1656unsigned int 2556unsigned int ecb_cold
1657ev_embeddable_backends (void) 2557ev_embeddable_backends (void) EV_THROW
1658{ 2558{
1659 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2559 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
1660 2560
1661 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2561 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
1662 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2562 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
1664 2564
1665 return flags; 2565 return flags;
1666} 2566}
1667 2567
1668unsigned int 2568unsigned int
1669ev_backend (EV_P) 2569ev_backend (EV_P) EV_THROW
1670{ 2570{
1671 return backend; 2571 return backend;
1672} 2572}
1673 2573
1674#if EV_FEATURE_API 2574#if EV_FEATURE_API
1675unsigned int 2575unsigned int
1676ev_iteration (EV_P) 2576ev_iteration (EV_P) EV_THROW
1677{ 2577{
1678 return loop_count; 2578 return loop_count;
1679} 2579}
1680 2580
1681unsigned int 2581unsigned int
1682ev_depth (EV_P) 2582ev_depth (EV_P) EV_THROW
1683{ 2583{
1684 return loop_depth; 2584 return loop_depth;
1685} 2585}
1686 2586
1687void 2587void
1688ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2588ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1689{ 2589{
1690 io_blocktime = interval; 2590 io_blocktime = interval;
1691} 2591}
1692 2592
1693void 2593void
1694ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2594ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
1695{ 2595{
1696 timeout_blocktime = interval; 2596 timeout_blocktime = interval;
1697} 2597}
1698 2598
1699void 2599void
1700ev_set_userdata (EV_P_ void *data) 2600ev_set_userdata (EV_P_ void *data) EV_THROW
1701{ 2601{
1702 userdata = data; 2602 userdata = data;
1703} 2603}
1704 2604
1705void * 2605void *
1706ev_userdata (EV_P) 2606ev_userdata (EV_P) EV_THROW
1707{ 2607{
1708 return userdata; 2608 return userdata;
1709} 2609}
1710 2610
2611void
1711void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2612ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
1712{ 2613{
1713 invoke_cb = invoke_pending_cb; 2614 invoke_cb = invoke_pending_cb;
1714} 2615}
1715 2616
2617void
1716void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2618ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW
1717{ 2619{
1718 release_cb = release; 2620 release_cb = release;
1719 acquire_cb = acquire; 2621 acquire_cb = acquire;
1720} 2622}
1721#endif 2623#endif
1722 2624
1723/* initialise a loop structure, must be zero-initialised */ 2625/* initialise a loop structure, must be zero-initialised */
1724static void noinline 2626static void noinline ecb_cold
1725loop_init (EV_P_ unsigned int flags) 2627loop_init (EV_P_ unsigned int flags) EV_THROW
1726{ 2628{
1727 if (!backend) 2629 if (!backend)
1728 { 2630 {
1729 origflags = flags; 2631 origflags = flags;
1730 2632
… …
1757 if (!(flags & EVFLAG_NOENV) 2659 if (!(flags & EVFLAG_NOENV)
1758 && !enable_secure () 2660 && !enable_secure ()
1759 && getenv ("LIBEV_FLAGS")) 2661 && getenv ("LIBEV_FLAGS"))
1760 flags = atoi (getenv ("LIBEV_FLAGS")); 2662 flags = atoi (getenv ("LIBEV_FLAGS"));
1761 2663
1762 ev_rt_now = ev_time (); 2664 ev_rt_now = ev_time ();
1763 mn_now = get_clock (); 2665 mn_now = get_clock ();
1764 now_floor = mn_now; 2666 now_floor = mn_now;
1765 rtmn_diff = ev_rt_now - mn_now; 2667 rtmn_diff = ev_rt_now - mn_now;
1766#if EV_FEATURE_API 2668#if EV_FEATURE_API
1767 invoke_cb = ev_invoke_pending; 2669 invoke_cb = ev_invoke_pending;
1768#endif 2670#endif
1769 2671
1770 io_blocktime = 0.; 2672 io_blocktime = 0.;
1771 timeout_blocktime = 0.; 2673 timeout_blocktime = 0.;
1772 backend = 0; 2674 backend = 0;
1773 backend_fd = -1; 2675 backend_fd = -1;
1774 sig_pending = 0; 2676 sig_pending = 0;
1775#if EV_ASYNC_ENABLE 2677#if EV_ASYNC_ENABLE
1776 async_pending = 0; 2678 async_pending = 0;
1777#endif 2679#endif
2680 pipe_write_skipped = 0;
2681 pipe_write_wanted = 0;
2682 evpipe [0] = -1;
2683 evpipe [1] = -1;
1778#if EV_USE_INOTIFY 2684#if EV_USE_INOTIFY
1779 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2685 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
1780#endif 2686#endif
1781#if EV_USE_SIGNALFD 2687#if EV_USE_SIGNALFD
1782 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2688 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
1783#endif 2689#endif
1784 2690
1785 if (!(flags & EVBACKEND_MASK)) 2691 if (!(flags & EVBACKEND_MASK))
1786 flags |= ev_recommended_backends (); 2692 flags |= ev_recommended_backends ();
1787 2693
… …
1812#endif 2718#endif
1813 } 2719 }
1814} 2720}
1815 2721
1816/* free up a loop structure */ 2722/* free up a loop structure */
1817void 2723void ecb_cold
1818ev_loop_destroy (EV_P) 2724ev_loop_destroy (EV_P)
1819{ 2725{
1820 int i; 2726 int i;
1821 2727
1822#if EV_MULTIPLICITY 2728#if EV_MULTIPLICITY
… …
1833 EV_INVOKE_PENDING; 2739 EV_INVOKE_PENDING;
1834 } 2740 }
1835#endif 2741#endif
1836 2742
1837#if EV_CHILD_ENABLE 2743#if EV_CHILD_ENABLE
1838 if (ev_is_active (&childev)) 2744 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
1839 { 2745 {
1840 ev_ref (EV_A); /* child watcher */ 2746 ev_ref (EV_A); /* child watcher */
1841 ev_signal_stop (EV_A_ &childev); 2747 ev_signal_stop (EV_A_ &childev);
1842 } 2748 }
1843#endif 2749#endif
… …
1845 if (ev_is_active (&pipe_w)) 2751 if (ev_is_active (&pipe_w))
1846 { 2752 {
1847 /*ev_ref (EV_A);*/ 2753 /*ev_ref (EV_A);*/
1848 /*ev_io_stop (EV_A_ &pipe_w);*/ 2754 /*ev_io_stop (EV_A_ &pipe_w);*/
1849 2755
1850#if EV_USE_EVENTFD
1851 if (evfd >= 0)
1852 close (evfd);
1853#endif
1854
1855 if (evpipe [0] >= 0)
1856 {
1857 EV_WIN32_CLOSE_FD (evpipe [0]); 2756 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
1858 EV_WIN32_CLOSE_FD (evpipe [1]); 2757 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
1859 }
1860 } 2758 }
1861 2759
1862#if EV_USE_SIGNALFD 2760#if EV_USE_SIGNALFD
1863 if (ev_is_active (&sigfd_w)) 2761 if (ev_is_active (&sigfd_w))
1864 close (sigfd); 2762 close (sigfd);
… …
1950#endif 2848#endif
1951#if EV_USE_INOTIFY 2849#if EV_USE_INOTIFY
1952 infy_fork (EV_A); 2850 infy_fork (EV_A);
1953#endif 2851#endif
1954 2852
2853#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1955 if (ev_is_active (&pipe_w)) 2854 if (ev_is_active (&pipe_w))
1956 { 2855 {
1957 /* this "locks" the handlers against writing to the pipe */ 2856 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
1958 /* while we modify the fd vars */
1959 sig_pending = 1;
1960#if EV_ASYNC_ENABLE
1961 async_pending = 1;
1962#endif
1963 2857
1964 ev_ref (EV_A); 2858 ev_ref (EV_A);
1965 ev_io_stop (EV_A_ &pipe_w); 2859 ev_io_stop (EV_A_ &pipe_w);
1966 2860
1967#if EV_USE_EVENTFD
1968 if (evfd >= 0)
1969 close (evfd);
1970#endif
1971
1972 if (evpipe [0] >= 0) 2861 if (evpipe [0] >= 0)
1973 {
1974 EV_WIN32_CLOSE_FD (evpipe [0]); 2862 EV_WIN32_CLOSE_FD (evpipe [0]);
1975 EV_WIN32_CLOSE_FD (evpipe [1]);
1976 }
1977 2863
1978#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
1979 evpipe_init (EV_A); 2864 evpipe_init (EV_A);
1980 /* now iterate over everything, in case we missed something */ 2865 /* iterate over everything, in case we missed something before */
1981 pipecb (EV_A_ &pipe_w, EV_READ); 2866 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
1982#endif
1983 } 2867 }
2868#endif
1984 2869
1985 postfork = 0; 2870 postfork = 0;
1986} 2871}
1987 2872
1988#if EV_MULTIPLICITY 2873#if EV_MULTIPLICITY
1989 2874
1990struct ev_loop * 2875struct ev_loop * ecb_cold
1991ev_loop_new (unsigned int flags) 2876ev_loop_new (unsigned int flags) EV_THROW
1992{ 2877{
1993 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2878 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
1994 2879
1995 memset (EV_A, 0, sizeof (struct ev_loop)); 2880 memset (EV_A, 0, sizeof (struct ev_loop));
1996 loop_init (EV_A_ flags); 2881 loop_init (EV_A_ flags);
… …
2003} 2888}
2004 2889
2005#endif /* multiplicity */ 2890#endif /* multiplicity */
2006 2891
2007#if EV_VERIFY 2892#if EV_VERIFY
2008static void noinline 2893static void noinline ecb_cold
2009verify_watcher (EV_P_ W w) 2894verify_watcher (EV_P_ W w)
2010{ 2895{
2011 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 2896 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2012 2897
2013 if (w->pending) 2898 if (w->pending)
2014 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 2899 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2015} 2900}
2016 2901
2017static void noinline 2902static void noinline ecb_cold
2018verify_heap (EV_P_ ANHE *heap, int N) 2903verify_heap (EV_P_ ANHE *heap, int N)
2019{ 2904{
2020 int i; 2905 int i;
2021 2906
2022 for (i = HEAP0; i < N + HEAP0; ++i) 2907 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2027 2912
2028 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 2913 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2029 } 2914 }
2030} 2915}
2031 2916
2032static void noinline 2917static void noinline ecb_cold
2033array_verify (EV_P_ W *ws, int cnt) 2918array_verify (EV_P_ W *ws, int cnt)
2034{ 2919{
2035 while (cnt--) 2920 while (cnt--)
2036 { 2921 {
2037 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 2922 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2039 } 2924 }
2040} 2925}
2041#endif 2926#endif
2042 2927
2043#if EV_FEATURE_API 2928#if EV_FEATURE_API
2044void 2929void ecb_cold
2045ev_verify (EV_P) 2930ev_verify (EV_P) EV_THROW
2046{ 2931{
2047#if EV_VERIFY 2932#if EV_VERIFY
2048 int i; 2933 int i;
2049 WL w; 2934 WL w, w2;
2050 2935
2051 assert (activecnt >= -1); 2936 assert (activecnt >= -1);
2052 2937
2053 assert (fdchangemax >= fdchangecnt); 2938 assert (fdchangemax >= fdchangecnt);
2054 for (i = 0; i < fdchangecnt; ++i) 2939 for (i = 0; i < fdchangecnt; ++i)
2055 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2940 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2056 2941
2057 assert (anfdmax >= 0); 2942 assert (anfdmax >= 0);
2058 for (i = 0; i < anfdmax; ++i) 2943 for (i = 0; i < anfdmax; ++i)
2944 {
2945 int j = 0;
2946
2059 for (w = anfds [i].head; w; w = w->next) 2947 for (w = w2 = anfds [i].head; w; w = w->next)
2060 { 2948 {
2061 verify_watcher (EV_A_ (W)w); 2949 verify_watcher (EV_A_ (W)w);
2950
2951 if (j++ & 1)
2952 {
2953 assert (("libev: io watcher list contains a loop", w != w2));
2954 w2 = w2->next;
2955 }
2956
2062 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2957 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2063 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2958 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2064 } 2959 }
2960 }
2065 2961
2066 assert (timermax >= timercnt); 2962 assert (timermax >= timercnt);
2067 verify_heap (EV_A_ timers, timercnt); 2963 verify_heap (EV_A_ timers, timercnt);
2068 2964
2069#if EV_PERIODIC_ENABLE 2965#if EV_PERIODIC_ENABLE
… …
2115#endif 3011#endif
2116} 3012}
2117#endif 3013#endif
2118 3014
2119#if EV_MULTIPLICITY 3015#if EV_MULTIPLICITY
2120struct ev_loop * 3016struct ev_loop * ecb_cold
2121#else 3017#else
2122int 3018int
2123#endif 3019#endif
2124ev_default_loop (unsigned int flags) 3020ev_default_loop (unsigned int flags) EV_THROW
2125{ 3021{
2126 if (!ev_default_loop_ptr) 3022 if (!ev_default_loop_ptr)
2127 { 3023 {
2128#if EV_MULTIPLICITY 3024#if EV_MULTIPLICITY
2129 EV_P = ev_default_loop_ptr = &default_loop_struct; 3025 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2148 3044
2149 return ev_default_loop_ptr; 3045 return ev_default_loop_ptr;
2150} 3046}
2151 3047
2152void 3048void
2153ev_loop_fork (EV_P) 3049ev_loop_fork (EV_P) EV_THROW
2154{ 3050{
2155 postfork = 1; /* must be in line with ev_default_fork */ 3051 postfork = 1;
2156} 3052}
2157 3053
2158/*****************************************************************************/ 3054/*****************************************************************************/
2159 3055
2160void 3056void
… …
2162{ 3058{
2163 EV_CB_INVOKE ((W)w, revents); 3059 EV_CB_INVOKE ((W)w, revents);
2164} 3060}
2165 3061
2166unsigned int 3062unsigned int
2167ev_pending_count (EV_P) 3063ev_pending_count (EV_P) EV_THROW
2168{ 3064{
2169 int pri; 3065 int pri;
2170 unsigned int count = 0; 3066 unsigned int count = 0;
2171 3067
2172 for (pri = NUMPRI; pri--; ) 3068 for (pri = NUMPRI; pri--; )
… …
2176} 3072}
2177 3073
2178void noinline 3074void noinline
2179ev_invoke_pending (EV_P) 3075ev_invoke_pending (EV_P)
2180{ 3076{
2181 int pri; 3077 pendingpri = NUMPRI;
2182 3078
2183 for (pri = NUMPRI; pri--; ) 3079 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3080 {
3081 --pendingpri;
3082
2184 while (pendingcnt [pri]) 3083 while (pendingcnt [pendingpri])
2185 { 3084 {
2186 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3085 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2187 3086
2188 p->w->pending = 0; 3087 p->w->pending = 0;
2189 EV_CB_INVOKE (p->w, p->events); 3088 EV_CB_INVOKE (p->w, p->events);
2190 EV_FREQUENT_CHECK; 3089 EV_FREQUENT_CHECK;
2191 } 3090 }
3091 }
2192} 3092}
2193 3093
2194#if EV_IDLE_ENABLE 3094#if EV_IDLE_ENABLE
2195/* make idle watchers pending. this handles the "call-idle */ 3095/* make idle watchers pending. this handles the "call-idle */
2196/* only when higher priorities are idle" logic */ 3096/* only when higher priorities are idle" logic */
… …
2286{ 3186{
2287 EV_FREQUENT_CHECK; 3187 EV_FREQUENT_CHECK;
2288 3188
2289 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3189 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2290 { 3190 {
2291 int feed_count = 0;
2292
2293 do 3191 do
2294 { 3192 {
2295 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3193 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2296 3194
2297 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3195 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2324 } 3222 }
2325} 3223}
2326 3224
2327/* simply recalculate all periodics */ 3225/* simply recalculate all periodics */
2328/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3226/* TODO: maybe ensure that at least one event happens when jumping forward? */
2329static void noinline 3227static void noinline ecb_cold
2330periodics_reschedule (EV_P) 3228periodics_reschedule (EV_P)
2331{ 3229{
2332 int i; 3230 int i;
2333 3231
2334 /* adjust periodics after time jump */ 3232 /* adjust periodics after time jump */
… …
2347 reheap (periodics, periodiccnt); 3245 reheap (periodics, periodiccnt);
2348} 3246}
2349#endif 3247#endif
2350 3248
2351/* adjust all timers by a given offset */ 3249/* adjust all timers by a given offset */
2352static void noinline 3250static void noinline ecb_cold
2353timers_reschedule (EV_P_ ev_tstamp adjust) 3251timers_reschedule (EV_P_ ev_tstamp adjust)
2354{ 3252{
2355 int i; 3253 int i;
2356 3254
2357 for (i = 0; i < timercnt; ++i) 3255 for (i = 0; i < timercnt; ++i)
… …
2431 3329
2432 mn_now = ev_rt_now; 3330 mn_now = ev_rt_now;
2433 } 3331 }
2434} 3332}
2435 3333
2436void 3334int
2437ev_run (EV_P_ int flags) 3335ev_run (EV_P_ int flags)
2438{ 3336{
2439#if EV_FEATURE_API 3337#if EV_FEATURE_API
2440 ++loop_depth; 3338 ++loop_depth;
2441#endif 3339#endif
… …
2499 ev_tstamp prev_mn_now = mn_now; 3397 ev_tstamp prev_mn_now = mn_now;
2500 3398
2501 /* update time to cancel out callback processing overhead */ 3399 /* update time to cancel out callback processing overhead */
2502 time_update (EV_A_ 1e100); 3400 time_update (EV_A_ 1e100);
2503 3401
3402 /* from now on, we want a pipe-wake-up */
3403 pipe_write_wanted = 1;
3404
3405 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3406
2504 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt))) 3407 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
2505 { 3408 {
2506 waittime = MAX_BLOCKTIME; 3409 waittime = MAX_BLOCKTIME;
2507 3410
2508 if (timercnt) 3411 if (timercnt)
2509 { 3412 {
… …
2549#endif 3452#endif
2550 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3453 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2551 backend_poll (EV_A_ waittime); 3454 backend_poll (EV_A_ waittime);
2552 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3455 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2553 3456
3457 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3458
3459 ECB_MEMORY_FENCE_ACQUIRE;
3460 if (pipe_write_skipped)
3461 {
3462 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3463 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3464 }
3465
3466
2554 /* update ev_rt_now, do magic */ 3467 /* update ev_rt_now, do magic */
2555 time_update (EV_A_ waittime + sleeptime); 3468 time_update (EV_A_ waittime + sleeptime);
2556 } 3469 }
2557 3470
2558 /* queue pending timers and reschedule them */ 3471 /* queue pending timers and reschedule them */
… …
2584 loop_done = EVBREAK_CANCEL; 3497 loop_done = EVBREAK_CANCEL;
2585 3498
2586#if EV_FEATURE_API 3499#if EV_FEATURE_API
2587 --loop_depth; 3500 --loop_depth;
2588#endif 3501#endif
3502
3503 return activecnt;
2589} 3504}
2590 3505
2591void 3506void
2592ev_break (EV_P_ int how) 3507ev_break (EV_P_ int how) EV_THROW
2593{ 3508{
2594 loop_done = how; 3509 loop_done = how;
2595} 3510}
2596 3511
2597void 3512void
2598ev_ref (EV_P) 3513ev_ref (EV_P) EV_THROW
2599{ 3514{
2600 ++activecnt; 3515 ++activecnt;
2601} 3516}
2602 3517
2603void 3518void
2604ev_unref (EV_P) 3519ev_unref (EV_P) EV_THROW
2605{ 3520{
2606 --activecnt; 3521 --activecnt;
2607} 3522}
2608 3523
2609void 3524void
2610ev_now_update (EV_P) 3525ev_now_update (EV_P) EV_THROW
2611{ 3526{
2612 time_update (EV_A_ 1e100); 3527 time_update (EV_A_ 1e100);
2613} 3528}
2614 3529
2615void 3530void
2616ev_suspend (EV_P) 3531ev_suspend (EV_P) EV_THROW
2617{ 3532{
2618 ev_now_update (EV_A); 3533 ev_now_update (EV_A);
2619} 3534}
2620 3535
2621void 3536void
2622ev_resume (EV_P) 3537ev_resume (EV_P) EV_THROW
2623{ 3538{
2624 ev_tstamp mn_prev = mn_now; 3539 ev_tstamp mn_prev = mn_now;
2625 3540
2626 ev_now_update (EV_A); 3541 ev_now_update (EV_A);
2627 timers_reschedule (EV_A_ mn_now - mn_prev); 3542 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
2666 w->pending = 0; 3581 w->pending = 0;
2667 } 3582 }
2668} 3583}
2669 3584
2670int 3585int
2671ev_clear_pending (EV_P_ void *w) 3586ev_clear_pending (EV_P_ void *w) EV_THROW
2672{ 3587{
2673 W w_ = (W)w; 3588 W w_ = (W)w;
2674 int pending = w_->pending; 3589 int pending = w_->pending;
2675 3590
2676 if (expect_true (pending)) 3591 if (expect_true (pending))
… …
2709} 3624}
2710 3625
2711/*****************************************************************************/ 3626/*****************************************************************************/
2712 3627
2713void noinline 3628void noinline
2714ev_io_start (EV_P_ ev_io *w) 3629ev_io_start (EV_P_ ev_io *w) EV_THROW
2715{ 3630{
2716 int fd = w->fd; 3631 int fd = w->fd;
2717 3632
2718 if (expect_false (ev_is_active (w))) 3633 if (expect_false (ev_is_active (w)))
2719 return; 3634 return;
… …
2725 3640
2726 ev_start (EV_A_ (W)w, 1); 3641 ev_start (EV_A_ (W)w, 1);
2727 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3642 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
2728 wlist_add (&anfds[fd].head, (WL)w); 3643 wlist_add (&anfds[fd].head, (WL)w);
2729 3644
3645 /* common bug, apparently */
3646 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3647
2730 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3648 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
2731 w->events &= ~EV__IOFDSET; 3649 w->events &= ~EV__IOFDSET;
2732 3650
2733 EV_FREQUENT_CHECK; 3651 EV_FREQUENT_CHECK;
2734} 3652}
2735 3653
2736void noinline 3654void noinline
2737ev_io_stop (EV_P_ ev_io *w) 3655ev_io_stop (EV_P_ ev_io *w) EV_THROW
2738{ 3656{
2739 clear_pending (EV_A_ (W)w); 3657 clear_pending (EV_A_ (W)w);
2740 if (expect_false (!ev_is_active (w))) 3658 if (expect_false (!ev_is_active (w)))
2741 return; 3659 return;
2742 3660
… …
2751 3669
2752 EV_FREQUENT_CHECK; 3670 EV_FREQUENT_CHECK;
2753} 3671}
2754 3672
2755void noinline 3673void noinline
2756ev_timer_start (EV_P_ ev_timer *w) 3674ev_timer_start (EV_P_ ev_timer *w) EV_THROW
2757{ 3675{
2758 if (expect_false (ev_is_active (w))) 3676 if (expect_false (ev_is_active (w)))
2759 return; 3677 return;
2760 3678
2761 ev_at (w) += mn_now; 3679 ev_at (w) += mn_now;
… …
2775 3693
2776 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3694 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
2777} 3695}
2778 3696
2779void noinline 3697void noinline
2780ev_timer_stop (EV_P_ ev_timer *w) 3698ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
2781{ 3699{
2782 clear_pending (EV_A_ (W)w); 3700 clear_pending (EV_A_ (W)w);
2783 if (expect_false (!ev_is_active (w))) 3701 if (expect_false (!ev_is_active (w)))
2784 return; 3702 return;
2785 3703
… …
2805 3723
2806 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
2807} 3725}
2808 3726
2809void noinline 3727void noinline
2810ev_timer_again (EV_P_ ev_timer *w) 3728ev_timer_again (EV_P_ ev_timer *w) EV_THROW
2811{ 3729{
2812 EV_FREQUENT_CHECK; 3730 EV_FREQUENT_CHECK;
3731
3732 clear_pending (EV_A_ (W)w);
2813 3733
2814 if (ev_is_active (w)) 3734 if (ev_is_active (w))
2815 { 3735 {
2816 if (w->repeat) 3736 if (w->repeat)
2817 { 3737 {
… …
2830 3750
2831 EV_FREQUENT_CHECK; 3751 EV_FREQUENT_CHECK;
2832} 3752}
2833 3753
2834ev_tstamp 3754ev_tstamp
2835ev_timer_remaining (EV_P_ ev_timer *w) 3755ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
2836{ 3756{
2837 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3757 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
2838} 3758}
2839 3759
2840#if EV_PERIODIC_ENABLE 3760#if EV_PERIODIC_ENABLE
2841void noinline 3761void noinline
2842ev_periodic_start (EV_P_ ev_periodic *w) 3762ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
2843{ 3763{
2844 if (expect_false (ev_is_active (w))) 3764 if (expect_false (ev_is_active (w)))
2845 return; 3765 return;
2846 3766
2847 if (w->reschedule_cb) 3767 if (w->reschedule_cb)
… …
2867 3787
2868 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3788 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
2869} 3789}
2870 3790
2871void noinline 3791void noinline
2872ev_periodic_stop (EV_P_ ev_periodic *w) 3792ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
2873{ 3793{
2874 clear_pending (EV_A_ (W)w); 3794 clear_pending (EV_A_ (W)w);
2875 if (expect_false (!ev_is_active (w))) 3795 if (expect_false (!ev_is_active (w)))
2876 return; 3796 return;
2877 3797
… …
2895 3815
2896 EV_FREQUENT_CHECK; 3816 EV_FREQUENT_CHECK;
2897} 3817}
2898 3818
2899void noinline 3819void noinline
2900ev_periodic_again (EV_P_ ev_periodic *w) 3820ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
2901{ 3821{
2902 /* TODO: use adjustheap and recalculation */ 3822 /* TODO: use adjustheap and recalculation */
2903 ev_periodic_stop (EV_A_ w); 3823 ev_periodic_stop (EV_A_ w);
2904 ev_periodic_start (EV_A_ w); 3824 ev_periodic_start (EV_A_ w);
2905} 3825}
… …
2910#endif 3830#endif
2911 3831
2912#if EV_SIGNAL_ENABLE 3832#if EV_SIGNAL_ENABLE
2913 3833
2914void noinline 3834void noinline
2915ev_signal_start (EV_P_ ev_signal *w) 3835ev_signal_start (EV_P_ ev_signal *w) EV_THROW
2916{ 3836{
2917 if (expect_false (ev_is_active (w))) 3837 if (expect_false (ev_is_active (w)))
2918 return; 3838 return;
2919 3839
2920 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3840 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
2922#if EV_MULTIPLICITY 3842#if EV_MULTIPLICITY
2923 assert (("libev: a signal must not be attached to two different loops", 3843 assert (("libev: a signal must not be attached to two different loops",
2924 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3844 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
2925 3845
2926 signals [w->signum - 1].loop = EV_A; 3846 signals [w->signum - 1].loop = EV_A;
3847 ECB_MEMORY_FENCE_RELEASE;
2927#endif 3848#endif
2928 3849
2929 EV_FREQUENT_CHECK; 3850 EV_FREQUENT_CHECK;
2930 3851
2931#if EV_USE_SIGNALFD 3852#if EV_USE_SIGNALFD
… …
2991 3912
2992 EV_FREQUENT_CHECK; 3913 EV_FREQUENT_CHECK;
2993} 3914}
2994 3915
2995void noinline 3916void noinline
2996ev_signal_stop (EV_P_ ev_signal *w) 3917ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
2997{ 3918{
2998 clear_pending (EV_A_ (W)w); 3919 clear_pending (EV_A_ (W)w);
2999 if (expect_false (!ev_is_active (w))) 3920 if (expect_false (!ev_is_active (w)))
3000 return; 3921 return;
3001 3922
… …
3032#endif 3953#endif
3033 3954
3034#if EV_CHILD_ENABLE 3955#if EV_CHILD_ENABLE
3035 3956
3036void 3957void
3037ev_child_start (EV_P_ ev_child *w) 3958ev_child_start (EV_P_ ev_child *w) EV_THROW
3038{ 3959{
3039#if EV_MULTIPLICITY 3960#if EV_MULTIPLICITY
3040 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3961 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3041#endif 3962#endif
3042 if (expect_false (ev_is_active (w))) 3963 if (expect_false (ev_is_active (w)))
… …
3049 3970
3050 EV_FREQUENT_CHECK; 3971 EV_FREQUENT_CHECK;
3051} 3972}
3052 3973
3053void 3974void
3054ev_child_stop (EV_P_ ev_child *w) 3975ev_child_stop (EV_P_ ev_child *w) EV_THROW
3055{ 3976{
3056 clear_pending (EV_A_ (W)w); 3977 clear_pending (EV_A_ (W)w);
3057 if (expect_false (!ev_is_active (w))) 3978 if (expect_false (!ev_is_active (w)))
3058 return; 3979 return;
3059 3980
… …
3086# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4007# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3087 4008
3088static void noinline 4009static void noinline
3089infy_add (EV_P_ ev_stat *w) 4010infy_add (EV_P_ ev_stat *w)
3090{ 4011{
3091 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); 4012 w->wd = inotify_add_watch (fs_fd, w->path,
4013 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4014 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
4015 | IN_DONT_FOLLOW | IN_MASK_ADD);
3092 4016
3093 if (w->wd >= 0) 4017 if (w->wd >= 0)
3094 { 4018 {
3095 struct statfs sfs; 4019 struct statfs sfs;
3096 4020
… …
3100 4024
3101 if (!fs_2625) 4025 if (!fs_2625)
3102 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4026 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3103 else if (!statfs (w->path, &sfs) 4027 else if (!statfs (w->path, &sfs)
3104 && (sfs.f_type == 0x1373 /* devfs */ 4028 && (sfs.f_type == 0x1373 /* devfs */
4029 || sfs.f_type == 0x4006 /* fat */
4030 || sfs.f_type == 0x4d44 /* msdos */
3105 || sfs.f_type == 0xEF53 /* ext2/3 */ 4031 || sfs.f_type == 0xEF53 /* ext2/3 */
4032 || sfs.f_type == 0x72b6 /* jffs2 */
4033 || sfs.f_type == 0x858458f6 /* ramfs */
4034 || sfs.f_type == 0x5346544e /* ntfs */
3106 || sfs.f_type == 0x3153464a /* jfs */ 4035 || sfs.f_type == 0x3153464a /* jfs */
4036 || sfs.f_type == 0x9123683e /* btrfs */
3107 || sfs.f_type == 0x52654973 /* reiser3 */ 4037 || sfs.f_type == 0x52654973 /* reiser3 */
3108 || sfs.f_type == 0x01021994 /* tempfs */ 4038 || sfs.f_type == 0x01021994 /* tmpfs */
3109 || sfs.f_type == 0x58465342 /* xfs */)) 4039 || sfs.f_type == 0x58465342 /* xfs */))
3110 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4040 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3111 else 4041 else
3112 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4042 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3113 } 4043 }
… …
3211 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4141 infy_wd (EV_A_ ev->wd, ev->wd, ev);
3212 ofs += sizeof (struct inotify_event) + ev->len; 4142 ofs += sizeof (struct inotify_event) + ev->len;
3213 } 4143 }
3214} 4144}
3215 4145
3216inline_size void 4146inline_size void ecb_cold
3217ev_check_2625 (EV_P) 4147ev_check_2625 (EV_P)
3218{ 4148{
3219 /* kernels < 2.6.25 are borked 4149 /* kernels < 2.6.25 are borked
3220 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4150 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
3221 */ 4151 */
… …
3226} 4156}
3227 4157
3228inline_size int 4158inline_size int
3229infy_newfd (void) 4159infy_newfd (void)
3230{ 4160{
3231#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4161#if defined IN_CLOEXEC && defined IN_NONBLOCK
3232 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4162 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3233 if (fd >= 0) 4163 if (fd >= 0)
3234 return fd; 4164 return fd;
3235#endif 4165#endif
3236 return inotify_init (); 4166 return inotify_init ();
… …
3311#else 4241#else
3312# define EV_LSTAT(p,b) lstat (p, b) 4242# define EV_LSTAT(p,b) lstat (p, b)
3313#endif 4243#endif
3314 4244
3315void 4245void
3316ev_stat_stat (EV_P_ ev_stat *w) 4246ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3317{ 4247{
3318 if (lstat (w->path, &w->attr) < 0) 4248 if (lstat (w->path, &w->attr) < 0)
3319 w->attr.st_nlink = 0; 4249 w->attr.st_nlink = 0;
3320 else if (!w->attr.st_nlink) 4250 else if (!w->attr.st_nlink)
3321 w->attr.st_nlink = 1; 4251 w->attr.st_nlink = 1;
… …
3360 ev_feed_event (EV_A_ w, EV_STAT); 4290 ev_feed_event (EV_A_ w, EV_STAT);
3361 } 4291 }
3362} 4292}
3363 4293
3364void 4294void
3365ev_stat_start (EV_P_ ev_stat *w) 4295ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3366{ 4296{
3367 if (expect_false (ev_is_active (w))) 4297 if (expect_false (ev_is_active (w)))
3368 return; 4298 return;
3369 4299
3370 ev_stat_stat (EV_A_ w); 4300 ev_stat_stat (EV_A_ w);
… …
3391 4321
3392 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
3393} 4323}
3394 4324
3395void 4325void
3396ev_stat_stop (EV_P_ ev_stat *w) 4326ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3397{ 4327{
3398 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
3399 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
3400 return; 4330 return;
3401 4331
… …
3417} 4347}
3418#endif 4348#endif
3419 4349
3420#if EV_IDLE_ENABLE 4350#if EV_IDLE_ENABLE
3421void 4351void
3422ev_idle_start (EV_P_ ev_idle *w) 4352ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3423{ 4353{
3424 if (expect_false (ev_is_active (w))) 4354 if (expect_false (ev_is_active (w)))
3425 return; 4355 return;
3426 4356
3427 pri_adjust (EV_A_ (W)w); 4357 pri_adjust (EV_A_ (W)w);
… …
3440 4370
3441 EV_FREQUENT_CHECK; 4371 EV_FREQUENT_CHECK;
3442} 4372}
3443 4373
3444void 4374void
3445ev_idle_stop (EV_P_ ev_idle *w) 4375ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3446{ 4376{
3447 clear_pending (EV_A_ (W)w); 4377 clear_pending (EV_A_ (W)w);
3448 if (expect_false (!ev_is_active (w))) 4378 if (expect_false (!ev_is_active (w)))
3449 return; 4379 return;
3450 4380
… …
3464} 4394}
3465#endif 4395#endif
3466 4396
3467#if EV_PREPARE_ENABLE 4397#if EV_PREPARE_ENABLE
3468void 4398void
3469ev_prepare_start (EV_P_ ev_prepare *w) 4399ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3470{ 4400{
3471 if (expect_false (ev_is_active (w))) 4401 if (expect_false (ev_is_active (w)))
3472 return; 4402 return;
3473 4403
3474 EV_FREQUENT_CHECK; 4404 EV_FREQUENT_CHECK;
… …
3479 4409
3480 EV_FREQUENT_CHECK; 4410 EV_FREQUENT_CHECK;
3481} 4411}
3482 4412
3483void 4413void
3484ev_prepare_stop (EV_P_ ev_prepare *w) 4414ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3485{ 4415{
3486 clear_pending (EV_A_ (W)w); 4416 clear_pending (EV_A_ (W)w);
3487 if (expect_false (!ev_is_active (w))) 4417 if (expect_false (!ev_is_active (w)))
3488 return; 4418 return;
3489 4419
… …
3502} 4432}
3503#endif 4433#endif
3504 4434
3505#if EV_CHECK_ENABLE 4435#if EV_CHECK_ENABLE
3506void 4436void
3507ev_check_start (EV_P_ ev_check *w) 4437ev_check_start (EV_P_ ev_check *w) EV_THROW
3508{ 4438{
3509 if (expect_false (ev_is_active (w))) 4439 if (expect_false (ev_is_active (w)))
3510 return; 4440 return;
3511 4441
3512 EV_FREQUENT_CHECK; 4442 EV_FREQUENT_CHECK;
… …
3517 4447
3518 EV_FREQUENT_CHECK; 4448 EV_FREQUENT_CHECK;
3519} 4449}
3520 4450
3521void 4451void
3522ev_check_stop (EV_P_ ev_check *w) 4452ev_check_stop (EV_P_ ev_check *w) EV_THROW
3523{ 4453{
3524 clear_pending (EV_A_ (W)w); 4454 clear_pending (EV_A_ (W)w);
3525 if (expect_false (!ev_is_active (w))) 4455 if (expect_false (!ev_is_active (w)))
3526 return; 4456 return;
3527 4457
… …
3540} 4470}
3541#endif 4471#endif
3542 4472
3543#if EV_EMBED_ENABLE 4473#if EV_EMBED_ENABLE
3544void noinline 4474void noinline
3545ev_embed_sweep (EV_P_ ev_embed *w) 4475ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3546{ 4476{
3547 ev_run (w->other, EVRUN_NOWAIT); 4477 ev_run (w->other, EVRUN_NOWAIT);
3548} 4478}
3549 4479
3550static void 4480static void
… …
3598 ev_idle_stop (EV_A_ idle); 4528 ev_idle_stop (EV_A_ idle);
3599} 4529}
3600#endif 4530#endif
3601 4531
3602void 4532void
3603ev_embed_start (EV_P_ ev_embed *w) 4533ev_embed_start (EV_P_ ev_embed *w) EV_THROW
3604{ 4534{
3605 if (expect_false (ev_is_active (w))) 4535 if (expect_false (ev_is_active (w)))
3606 return; 4536 return;
3607 4537
3608 { 4538 {
… …
3629 4559
3630 EV_FREQUENT_CHECK; 4560 EV_FREQUENT_CHECK;
3631} 4561}
3632 4562
3633void 4563void
3634ev_embed_stop (EV_P_ ev_embed *w) 4564ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
3635{ 4565{
3636 clear_pending (EV_A_ (W)w); 4566 clear_pending (EV_A_ (W)w);
3637 if (expect_false (!ev_is_active (w))) 4567 if (expect_false (!ev_is_active (w)))
3638 return; 4568 return;
3639 4569
… …
3649} 4579}
3650#endif 4580#endif
3651 4581
3652#if EV_FORK_ENABLE 4582#if EV_FORK_ENABLE
3653void 4583void
3654ev_fork_start (EV_P_ ev_fork *w) 4584ev_fork_start (EV_P_ ev_fork *w) EV_THROW
3655{ 4585{
3656 if (expect_false (ev_is_active (w))) 4586 if (expect_false (ev_is_active (w)))
3657 return; 4587 return;
3658 4588
3659 EV_FREQUENT_CHECK; 4589 EV_FREQUENT_CHECK;
… …
3664 4594
3665 EV_FREQUENT_CHECK; 4595 EV_FREQUENT_CHECK;
3666} 4596}
3667 4597
3668void 4598void
3669ev_fork_stop (EV_P_ ev_fork *w) 4599ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
3670{ 4600{
3671 clear_pending (EV_A_ (W)w); 4601 clear_pending (EV_A_ (W)w);
3672 if (expect_false (!ev_is_active (w))) 4602 if (expect_false (!ev_is_active (w)))
3673 return; 4603 return;
3674 4604
… …
3687} 4617}
3688#endif 4618#endif
3689 4619
3690#if EV_CLEANUP_ENABLE 4620#if EV_CLEANUP_ENABLE
3691void 4621void
3692ev_cleanup_start (EV_P_ ev_cleanup *w) 4622ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
3693{ 4623{
3694 if (expect_false (ev_is_active (w))) 4624 if (expect_false (ev_is_active (w)))
3695 return; 4625 return;
3696 4626
3697 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
… …
3704 ev_unref (EV_A); 4634 ev_unref (EV_A);
3705 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
3706} 4636}
3707 4637
3708void 4638void
3709ev_cleanup_stop (EV_P_ ev_cleanup *w) 4639ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
3710{ 4640{
3711 clear_pending (EV_A_ (W)w); 4641 clear_pending (EV_A_ (W)w);
3712 if (expect_false (!ev_is_active (w))) 4642 if (expect_false (!ev_is_active (w)))
3713 return; 4643 return;
3714 4644
… …
3728} 4658}
3729#endif 4659#endif
3730 4660
3731#if EV_ASYNC_ENABLE 4661#if EV_ASYNC_ENABLE
3732void 4662void
3733ev_async_start (EV_P_ ev_async *w) 4663ev_async_start (EV_P_ ev_async *w) EV_THROW
3734{ 4664{
3735 if (expect_false (ev_is_active (w))) 4665 if (expect_false (ev_is_active (w)))
3736 return; 4666 return;
3737 4667
3738 w->sent = 0; 4668 w->sent = 0;
… …
3747 4677
3748 EV_FREQUENT_CHECK; 4678 EV_FREQUENT_CHECK;
3749} 4679}
3750 4680
3751void 4681void
3752ev_async_stop (EV_P_ ev_async *w) 4682ev_async_stop (EV_P_ ev_async *w) EV_THROW
3753{ 4683{
3754 clear_pending (EV_A_ (W)w); 4684 clear_pending (EV_A_ (W)w);
3755 if (expect_false (!ev_is_active (w))) 4685 if (expect_false (!ev_is_active (w)))
3756 return; 4686 return;
3757 4687
… …
3768 4698
3769 EV_FREQUENT_CHECK; 4699 EV_FREQUENT_CHECK;
3770} 4700}
3771 4701
3772void 4702void
3773ev_async_send (EV_P_ ev_async *w) 4703ev_async_send (EV_P_ ev_async *w) EV_THROW
3774{ 4704{
3775 w->sent = 1; 4705 w->sent = 1;
3776 evpipe_write (EV_A_ &async_pending); 4706 evpipe_write (EV_A_ &async_pending);
3777} 4707}
3778#endif 4708#endif
… …
3815 4745
3816 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4746 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
3817} 4747}
3818 4748
3819void 4749void
3820ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4750ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
3821{ 4751{
3822 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4752 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
3823 4753
3824 if (expect_false (!once)) 4754 if (expect_false (!once))
3825 { 4755 {
… …
3846} 4776}
3847 4777
3848/*****************************************************************************/ 4778/*****************************************************************************/
3849 4779
3850#if EV_WALK_ENABLE 4780#if EV_WALK_ENABLE
3851void 4781void ecb_cold
3852ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4782ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
3853{ 4783{
3854 int i, j; 4784 int i, j;
3855 ev_watcher_list *wl, *wn; 4785 ev_watcher_list *wl, *wn;
3856 4786
3857 if (types & (EV_IO | EV_EMBED)) 4787 if (types & (EV_IO | EV_EMBED))
… …
3900 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i])); 4830 cb (EV_A_ EV_PERIODIC, ANHE_w (periodics [i]));
3901#endif 4831#endif
3902 4832
3903#if EV_IDLE_ENABLE 4833#if EV_IDLE_ENABLE
3904 if (types & EV_IDLE) 4834 if (types & EV_IDLE)
3905 for (j = NUMPRI; i--; ) 4835 for (j = NUMPRI; j--; )
3906 for (i = idlecnt [j]; i--; ) 4836 for (i = idlecnt [j]; i--; )
3907 cb (EV_A_ EV_IDLE, idles [j][i]); 4837 cb (EV_A_ EV_IDLE, idles [j][i]);
3908#endif 4838#endif
3909 4839
3910#if EV_FORK_ENABLE 4840#if EV_FORK_ENABLE
… …
3963 4893
3964#if EV_MULTIPLICITY 4894#if EV_MULTIPLICITY
3965 #include "ev_wrap.h" 4895 #include "ev_wrap.h"
3966#endif 4896#endif
3967 4897
3968EV_CPP(})
3969

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