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Comparing libev/ev.c (file contents):
Revision 1.411 by root, Tue Feb 21 04:34:02 2012 UTC vs.
Revision 1.467 by root, Fri May 16 15:15:39 2014 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
201# include <sys/wait.h> 201# include <sys/wait.h>
202# include <unistd.h> 202# include <unistd.h>
203#else 203#else
204# include <io.h> 204# include <io.h>
205# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
206# include <windows.h> 207# include <windows.h>
207# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
208# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
209# endif 210# endif
210# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
219#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
220 221
221/* 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 */
222 223
223/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
224#if defined (EV_NSIG) 225#if defined EV_NSIG
225/* use what's provided */ 226/* use what's provided */
226#elif defined (NSIG) 227#elif defined NSIG
227# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
228#elif defined(_NSIG) 229#elif defined _NSIG
229# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
230#elif defined (SIGMAX) 231#elif defined SIGMAX
231# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
232#elif defined (SIG_MAX) 233#elif defined SIG_MAX
233# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
234#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
235# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
236#elif defined (MAXSIG) 237#elif defined MAXSIG
237# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
238#elif defined (MAX_SIG) 239#elif defined MAX_SIG
239# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
240#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
241# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
242#elif defined (_sys_nsig) 243#elif defined _sys_nsig
243# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
244#else 245#else
245# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
246/* to make it compile regardless, just remove the above line, */
247/* but consider reporting it, too! :) */
248# define EV_NSIG 65
249#endif 247#endif
250 248
251#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
252# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
253#endif 251#endif
254 252
255#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
256# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
257# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
258# else 256# else
259# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
260# endif 258# endif
261#endif 259#endif
262 260
263#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
264# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
265# define EV_USE_MONOTONIC EV_FEATURE_OS 263# define EV_USE_MONOTONIC EV_FEATURE_OS
266# else 264# else
267# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
268# endif 266# endif
269#endif 267#endif
… …
356 354
357#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
358# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
359#endif 357#endif
360 358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
361/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
362/* which makes programs even slower. might work on other unices, too. */ 376/* which makes programs even slower. might work on other unices, too. */
363#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
364# include <syscall.h> 378# include <sys/syscall.h>
365# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
366# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
367# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
368# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
369# else 383# else
… …
372# endif 386# endif
373#endif 387#endif
374 388
375/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
376 390
377#ifdef _AIX
378/* AIX has a completely broken poll.h header */
379# undef EV_USE_POLL
380# define EV_USE_POLL 0
381#endif
382
383#ifndef CLOCK_MONOTONIC 391#ifndef CLOCK_MONOTONIC
384# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
385# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
386#endif 394#endif
387 395
… …
395# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
396#endif 404#endif
397 405
398#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
399/* hp-ux has it in sys/time.h, which we unconditionally include above */ 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
400# if !defined(_WIN32) && !defined(__hpux) 408# if !defined _WIN32 && !defined __hpux
401# include <sys/select.h> 409# include <sys/select.h>
402# endif 410# endif
403#endif 411#endif
404 412
405#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
… …
408/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
409# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
410# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
411# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
412# endif 420# endif
413#endif
414
415#if EV_SELECT_IS_WINSOCKET
416# include <winsock.h>
417#endif 421#endif
418 422
419#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
420/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
421# include <stdint.h> 425# include <stdint.h>
… …
478/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 482/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
479/* ECB.H BEGIN */ 483/* ECB.H BEGIN */
480/* 484/*
481 * libecb - http://software.schmorp.de/pkg/libecb 485 * libecb - http://software.schmorp.de/pkg/libecb
482 * 486 *
483 * Copyright (©) 2009-2012 Marc Alexander Lehmann <libecb@schmorp.de> 487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
484 * Copyright (©) 2011 Emanuele Giaquinta 488 * Copyright (©) 2011 Emanuele Giaquinta
485 * All rights reserved. 489 * All rights reserved.
486 * 490 *
487 * Redistribution and use in source and binary forms, with or without modifica- 491 * Redistribution and use in source and binary forms, with or without modifica-
488 * tion, are permitted provided that the following conditions are met: 492 * tion, are permitted provided that the following conditions are met:
… …
502 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 506 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
503 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 507 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
504 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH- 508 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTH-
505 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 509 * ERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
506 * OF THE POSSIBILITY OF SUCH DAMAGE. 510 * OF THE POSSIBILITY OF SUCH DAMAGE.
511 *
512 * Alternatively, the contents of this file may be used under the terms of
513 * the GNU General Public License ("GPL") version 2 or any later version,
514 * in which case the provisions of the GPL are applicable instead of
515 * the above. If you wish to allow the use of your version of this file
516 * only under the terms of the GPL and not to allow others to use your
517 * version of this file under the BSD license, indicate your decision
518 * by deleting the provisions above and replace them with the notice
519 * and other provisions required by the GPL. If you do not delete the
520 * provisions above, a recipient may use your version of this file under
521 * either the BSD or the GPL.
507 */ 522 */
508 523
509#ifndef ECB_H 524#ifndef ECB_H
510#define ECB_H 525#define ECB_H
526
527/* 16 bits major, 16 bits minor */
528#define ECB_VERSION 0x00010003
511 529
512#ifdef _WIN32 530#ifdef _WIN32
513 typedef signed char int8_t; 531 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 532 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 533 typedef signed short int16_t;
… …
521 typedef unsigned long long uint64_t; 539 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 540 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 541 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 542 typedef unsigned __int64 uint64_t;
525 #endif 543 #endif
544 #ifdef _WIN64
545 #define ECB_PTRSIZE 8
546 typedef uint64_t uintptr_t;
547 typedef int64_t intptr_t;
548 #else
549 #define ECB_PTRSIZE 4
550 typedef uint32_t uintptr_t;
551 typedef int32_t intptr_t;
552 #endif
526#else 553#else
527 #include <inttypes.h> 554 #include <inttypes.h>
555 #if UINTMAX_MAX > 0xffffffffU
556 #define ECB_PTRSIZE 8
557 #else
558 #define ECB_PTRSIZE 4
559 #endif
560#endif
561
562/* work around x32 idiocy by defining proper macros */
563#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
564 #if _ILP32
565 #define ECB_AMD64_X32 1
566 #else
567 #define ECB_AMD64 1
568 #endif
528#endif 569#endif
529 570
530/* many compilers define _GNUC_ to some versions but then only implement 571/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 572 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 573 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 574 * or so.
534 * we try to detect these and simply assume they are not gcc - if they have 575 * we try to detect these and simply assume they are not gcc - if they have
535 * an issue with that they should have done it right in the first place. 576 * an issue with that they should have done it right in the first place.
536 */ 577 */
537#ifndef ECB_GCC_VERSION 578#ifndef ECB_GCC_VERSION
538 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 579 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
539 #define ECB_GCC_VERSION(major,minor) 0 580 #define ECB_GCC_VERSION(major,minor) 0
540 #else 581 #else
541 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 582 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
542 #endif 583 #endif
543#endif 584#endif
544 585
586#define ECB_CPP (__cplusplus+0)
587#define ECB_CPP11 (__cplusplus >= 201103L)
588
589#if ECB_CPP
590 #define ECB_C 0
591 #define ECB_STDC_VERSION 0
592#else
593 #define ECB_C 1
594 #define ECB_STDC_VERSION __STDC_VERSION__
595#endif
596
597#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
598#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
599
600#if ECB_CPP
601 #define ECB_EXTERN_C extern "C"
602 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
603 #define ECB_EXTERN_C_END }
604#else
605 #define ECB_EXTERN_C extern
606 #define ECB_EXTERN_C_BEG
607 #define ECB_EXTERN_C_END
608#endif
609
545/*****************************************************************************/ 610/*****************************************************************************/
546 611
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 612/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
548/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 613/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 614
550#if ECB_NO_THREADS 615#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 616 #define ECB_NO_SMP 1
552#endif 617#endif
553 618
554#if ECB_NO_THREADS || ECB_NO_SMP 619#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 620 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 621#endif
557 622
558#ifndef ECB_MEMORY_FENCE 623#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 624 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 625 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
562 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 627 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 628 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 629 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 630 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 631 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
567 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 632 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 633 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 634 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 635 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 636 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
572 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
573 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 638 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 639 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
641 #elif __aarch64__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
576 #elif __sparc || __sparc__ 643 #elif (__sparc || __sparc__) && !__sparcv8
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 645 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 647 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
649 #elif defined __mips__
650 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
651 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
652 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
653 #elif defined __alpha__
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
655 #elif defined __hppa__
656 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
657 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
658 #elif defined __ia64__
659 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
660 #elif defined __m68k__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
662 #elif defined __m88k__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
664 #elif defined __sh__
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
582 #endif 666 #endif
583 #endif 667 #endif
584#endif 668#endif
585 669
586#ifndef ECB_MEMORY_FENCE 670#ifndef ECB_MEMORY_FENCE
671 #if ECB_GCC_VERSION(4,7)
672 /* see comment below (stdatomic.h) about the C11 memory model. */
673 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
674 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
675 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
676
677 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
678 * without risking compile time errors with other compilers. We *could*
679 * define our own ecb_clang_has_feature, but I just can't be bothered to work
680 * around this shit time and again.
681 * #elif defined __clang && __has_feature (cxx_atomic)
682 * // see comment below (stdatomic.h) about the C11 memory model.
683 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
684 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
685 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
686 */
687
587 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 688 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588 #define ECB_MEMORY_FENCE __sync_synchronize () 689 #define ECB_MEMORY_FENCE __sync_synchronize ()
589 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 690 #elif _MSC_VER >= 1500 /* VC++ 2008 */
590 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 691 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
692 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
693 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
694 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
695 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
591 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 696 #elif _MSC_VER >= 1400 /* VC++ 2005 */
592 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 697 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 698 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 699 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
595 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 700 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596 #elif defined(_WIN32) 701 #elif defined _WIN32
597 #include <WinNT.h> 702 #include <WinNT.h>
598 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 703 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 704 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #include <mbarrier.h> 705 #include <mbarrier.h>
601 #define ECB_MEMORY_FENCE __machine_rw_barrier () 706 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
602 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 707 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 708 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
709 #elif __xlC__
710 #define ECB_MEMORY_FENCE __sync ()
711 #endif
712#endif
713
714#ifndef ECB_MEMORY_FENCE
715 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
716 /* we assume that these memory fences work on all variables/all memory accesses, */
717 /* not just C11 atomics and atomic accesses */
718 #include <stdatomic.h>
719 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
720 /* any fence other than seq_cst, which isn't very efficient for us. */
721 /* Why that is, we don't know - either the C11 memory model is quite useless */
722 /* for most usages, or gcc and clang have a bug */
723 /* I *currently* lean towards the latter, and inefficiently implement */
724 /* all three of ecb's fences as a seq_cst fence */
725 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
726 /* for all __atomic_thread_fence's except seq_cst */
727 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
604 #endif 728 #endif
605#endif 729#endif
606 730
607#ifndef ECB_MEMORY_FENCE 731#ifndef ECB_MEMORY_FENCE
608 #if !ECB_AVOID_PTHREADS 732 #if !ECB_AVOID_PTHREADS
… …
620 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 744 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
621 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 745 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
622 #endif 746 #endif
623#endif 747#endif
624 748
625#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 749#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 750 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627#endif 751#endif
628 752
629#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 753#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 754 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631#endif 755#endif
632 756
633/*****************************************************************************/ 757/*****************************************************************************/
634
635#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636 758
637#if __cplusplus 759#if __cplusplus
638 #define ecb_inline static inline 760 #define ecb_inline static inline
639#elif ECB_GCC_VERSION(2,5) 761#elif ECB_GCC_VERSION(2,5)
640 #define ecb_inline static __inline__ 762 #define ecb_inline static __inline__
… …
666 #define ecb_is_constant(expr) __builtin_constant_p (expr) 788 #define ecb_is_constant(expr) __builtin_constant_p (expr)
667 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 789 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
668 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 790 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
669#else 791#else
670 #define ecb_attribute(attrlist) 792 #define ecb_attribute(attrlist)
793
794 /* possible C11 impl for integral types
795 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
796 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
797
671 #define ecb_is_constant(expr) 0 798 #define ecb_is_constant(expr) 0
672 #define ecb_expect(expr,value) (expr) 799 #define ecb_expect(expr,value) (expr)
673 #define ecb_prefetch(addr,rw,locality) 800 #define ecb_prefetch(addr,rw,locality)
674#endif 801#endif
675 802
… …
679#elif ECB_GCC_VERSION(3,0) 806#elif ECB_GCC_VERSION(3,0)
680 #define ecb_decltype(x) __typeof(x) 807 #define ecb_decltype(x) __typeof(x)
681#endif 808#endif
682 809
683#define ecb_noinline ecb_attribute ((__noinline__)) 810#define ecb_noinline ecb_attribute ((__noinline__))
684#define ecb_noreturn ecb_attribute ((__noreturn__))
685#define ecb_unused ecb_attribute ((__unused__)) 811#define ecb_unused ecb_attribute ((__unused__))
686#define ecb_const ecb_attribute ((__const__)) 812#define ecb_const ecb_attribute ((__const__))
687#define ecb_pure ecb_attribute ((__pure__)) 813#define ecb_pure ecb_attribute ((__pure__))
814
815#if ECB_C11
816 #define ecb_noreturn _Noreturn
817#else
818 #define ecb_noreturn ecb_attribute ((__noreturn__))
819#endif
688 820
689#if ECB_GCC_VERSION(4,3) 821#if ECB_GCC_VERSION(4,3)
690 #define ecb_artificial ecb_attribute ((__artificial__)) 822 #define ecb_artificial ecb_attribute ((__artificial__))
691 #define ecb_hot ecb_attribute ((__hot__)) 823 #define ecb_hot ecb_attribute ((__hot__))
692 #define ecb_cold ecb_attribute ((__cold__)) 824 #define ecb_cold ecb_attribute ((__cold__))
… …
783 915
784 return r + ecb_ld32 (x); 916 return r + ecb_ld32 (x);
785 } 917 }
786#endif 918#endif
787 919
920ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
921ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
922ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
923ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
924
788ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 925ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 926ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790{ 927{
791 return ( (x * 0x0802U & 0x22110U) 928 return ( (x * 0x0802U & 0x22110U)
792 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 929 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
876 ecb_inline void ecb_unreachable (void) ecb_noreturn; 1013 ecb_inline void ecb_unreachable (void) ecb_noreturn;
877 ecb_inline void ecb_unreachable (void) { } 1014 ecb_inline void ecb_unreachable (void) { }
878#endif 1015#endif
879 1016
880/* try to tell the compiler that some condition is definitely true */ 1017/* try to tell the compiler that some condition is definitely true */
881#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1018#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
882 1019
883ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 1020ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
884ecb_inline unsigned char 1021ecb_inline unsigned char
885ecb_byteorder_helper (void) 1022ecb_byteorder_helper (void)
886{ 1023{
887 const uint32_t u = 0x11223344; 1024 /* the union code still generates code under pressure in gcc, */
888 return *(unsigned char *)&u; 1025 /* but less than using pointers, and always seems to */
1026 /* successfully return a constant. */
1027 /* the reason why we have this horrible preprocessor mess */
1028 /* is to avoid it in all cases, at least on common architectures */
1029 /* or when using a recent enough gcc version (>= 4.6) */
1030#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1031 return 0x44;
1032#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1033 return 0x44;
1034#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1035 return 0x11;
1036#else
1037 union
1038 {
1039 uint32_t i;
1040 uint8_t c;
1041 } u = { 0x11223344 };
1042 return u.c;
1043#endif
889} 1044}
890 1045
891ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1046ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
892ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1047ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
893ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1048ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
924 } 1079 }
925#else 1080#else
926 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1081 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927#endif 1082#endif
928 1083
1084/*******************************************************************************/
1085/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1086
1087/* basically, everything uses "ieee pure-endian" floating point numbers */
1088/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1089#if 0 \
1090 || __i386 || __i386__ \
1091 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1092 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1093 || defined __s390__ || defined __s390x__ \
1094 || defined __mips__ \
1095 || defined __alpha__ \
1096 || defined __hppa__ \
1097 || defined __ia64__ \
1098 || defined __m68k__ \
1099 || defined __m88k__ \
1100 || defined __sh__ \
1101 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1102 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1103 || defined __aarch64__
1104 #define ECB_STDFP 1
1105 #include <string.h> /* for memcpy */
1106#else
1107 #define ECB_STDFP 0
1108#endif
1109
1110#ifndef ECB_NO_LIBM
1111
1112 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1113
1114 /* only the oldest of old doesn't have this one. solaris. */
1115 #ifdef INFINITY
1116 #define ECB_INFINITY INFINITY
1117 #else
1118 #define ECB_INFINITY HUGE_VAL
1119 #endif
1120
1121 #ifdef NAN
1122 #define ECB_NAN NAN
1123 #else
1124 #define ECB_NAN ECB_INFINITY
1125 #endif
1126
1127 /* converts an ieee half/binary16 to a float */
1128 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1129 ecb_function_ float
1130 ecb_binary16_to_float (uint16_t x)
1131 {
1132 int e = (x >> 10) & 0x1f;
1133 int m = x & 0x3ff;
1134 float r;
1135
1136 if (!e ) r = ldexpf (m , -24);
1137 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1138 else if (m ) r = ECB_NAN;
1139 else r = ECB_INFINITY;
1140
1141 return x & 0x8000 ? -r : r;
1142 }
1143
1144 /* convert a float to ieee single/binary32 */
1145 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1146 ecb_function_ uint32_t
1147 ecb_float_to_binary32 (float x)
1148 {
1149 uint32_t r;
1150
1151 #if ECB_STDFP
1152 memcpy (&r, &x, 4);
1153 #else
1154 /* slow emulation, works for anything but -0 */
1155 uint32_t m;
1156 int e;
1157
1158 if (x == 0e0f ) return 0x00000000U;
1159 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1160 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1161 if (x != x ) return 0x7fbfffffU;
1162
1163 m = frexpf (x, &e) * 0x1000000U;
1164
1165 r = m & 0x80000000U;
1166
1167 if (r)
1168 m = -m;
1169
1170 if (e <= -126)
1171 {
1172 m &= 0xffffffU;
1173 m >>= (-125 - e);
1174 e = -126;
1175 }
1176
1177 r |= (e + 126) << 23;
1178 r |= m & 0x7fffffU;
1179 #endif
1180
1181 return r;
1182 }
1183
1184 /* converts an ieee single/binary32 to a float */
1185 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1186 ecb_function_ float
1187 ecb_binary32_to_float (uint32_t x)
1188 {
1189 float r;
1190
1191 #if ECB_STDFP
1192 memcpy (&r, &x, 4);
1193 #else
1194 /* emulation, only works for normals and subnormals and +0 */
1195 int neg = x >> 31;
1196 int e = (x >> 23) & 0xffU;
1197
1198 x &= 0x7fffffU;
1199
1200 if (e)
1201 x |= 0x800000U;
1202 else
1203 e = 1;
1204
1205 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1206 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1207
1208 r = neg ? -r : r;
1209 #endif
1210
1211 return r;
1212 }
1213
1214 /* convert a double to ieee double/binary64 */
1215 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1216 ecb_function_ uint64_t
1217 ecb_double_to_binary64 (double x)
1218 {
1219 uint64_t r;
1220
1221 #if ECB_STDFP
1222 memcpy (&r, &x, 8);
1223 #else
1224 /* slow emulation, works for anything but -0 */
1225 uint64_t m;
1226 int e;
1227
1228 if (x == 0e0 ) return 0x0000000000000000U;
1229 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1230 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1231 if (x != x ) return 0X7ff7ffffffffffffU;
1232
1233 m = frexp (x, &e) * 0x20000000000000U;
1234
1235 r = m & 0x8000000000000000;;
1236
1237 if (r)
1238 m = -m;
1239
1240 if (e <= -1022)
1241 {
1242 m &= 0x1fffffffffffffU;
1243 m >>= (-1021 - e);
1244 e = -1022;
1245 }
1246
1247 r |= ((uint64_t)(e + 1022)) << 52;
1248 r |= m & 0xfffffffffffffU;
1249 #endif
1250
1251 return r;
1252 }
1253
1254 /* converts an ieee double/binary64 to a double */
1255 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1256 ecb_function_ double
1257 ecb_binary64_to_double (uint64_t x)
1258 {
1259 double r;
1260
1261 #if ECB_STDFP
1262 memcpy (&r, &x, 8);
1263 #else
1264 /* emulation, only works for normals and subnormals and +0 */
1265 int neg = x >> 63;
1266 int e = (x >> 52) & 0x7ffU;
1267
1268 x &= 0xfffffffffffffU;
1269
1270 if (e)
1271 x |= 0x10000000000000U;
1272 else
1273 e = 1;
1274
1275 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1276 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1277
1278 r = neg ? -r : r;
1279 #endif
1280
1281 return r;
1282 }
1283
1284#endif
1285
929#endif 1286#endif
930 1287
931/* ECB.H END */ 1288/* ECB.H END */
932 1289
933#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1290#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1099{ 1456{
1100 write (STDERR_FILENO, msg, strlen (msg)); 1457 write (STDERR_FILENO, msg, strlen (msg));
1101} 1458}
1102#endif 1459#endif
1103 1460
1104static void (*syserr_cb)(const char *msg); 1461static void (*syserr_cb)(const char *msg) EV_THROW;
1105 1462
1106void ecb_cold 1463void ecb_cold
1107ev_set_syserr_cb (void (*cb)(const char *msg)) 1464ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108{ 1465{
1109 syserr_cb = cb; 1466 syserr_cb = cb;
1110} 1467}
1111 1468
1112static void noinline ecb_cold 1469static void noinline ecb_cold
… …
1130 abort (); 1487 abort ();
1131 } 1488 }
1132} 1489}
1133 1490
1134static void * 1491static void *
1135ev_realloc_emul (void *ptr, long size) 1492ev_realloc_emul (void *ptr, long size) EV_THROW
1136{ 1493{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
1140 /* some systems, notably openbsd and darwin, fail to properly 1494 /* some systems, notably openbsd and darwin, fail to properly
1141 * implement realloc (x, 0) (as required by both ansi c-89 and 1495 * implement realloc (x, 0) (as required by both ansi c-89 and
1142 * the single unix specification, so work around them here. 1496 * the single unix specification, so work around them here.
1497 * recently, also (at least) fedora and debian started breaking it,
1498 * despite documenting it otherwise.
1143 */ 1499 */
1144 1500
1145 if (size) 1501 if (size)
1146 return realloc (ptr, size); 1502 return realloc (ptr, size);
1147 1503
1148 free (ptr); 1504 free (ptr);
1149 return 0; 1505 return 0;
1150#endif
1151} 1506}
1152 1507
1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1508static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154 1509
1155void ecb_cold 1510void ecb_cold
1156ev_set_allocator (void *(*cb)(void *ptr, long size)) 1511ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157{ 1512{
1158 alloc = cb; 1513 alloc = cb;
1159} 1514}
1160 1515
1161inline_speed void * 1516inline_speed void *
… …
1278 1633
1279/*****************************************************************************/ 1634/*****************************************************************************/
1280 1635
1281#ifndef EV_HAVE_EV_TIME 1636#ifndef EV_HAVE_EV_TIME
1282ev_tstamp 1637ev_tstamp
1283ev_time (void) 1638ev_time (void) EV_THROW
1284{ 1639{
1285#if EV_USE_REALTIME 1640#if EV_USE_REALTIME
1286 if (expect_true (have_realtime)) 1641 if (expect_true (have_realtime))
1287 { 1642 {
1288 struct timespec ts; 1643 struct timespec ts;
… …
1312 return ev_time (); 1667 return ev_time ();
1313} 1668}
1314 1669
1315#if EV_MULTIPLICITY 1670#if EV_MULTIPLICITY
1316ev_tstamp 1671ev_tstamp
1317ev_now (EV_P) 1672ev_now (EV_P) EV_THROW
1318{ 1673{
1319 return ev_rt_now; 1674 return ev_rt_now;
1320} 1675}
1321#endif 1676#endif
1322 1677
1323void 1678void
1324ev_sleep (ev_tstamp delay) 1679ev_sleep (ev_tstamp delay) EV_THROW
1325{ 1680{
1326 if (delay > 0.) 1681 if (delay > 0.)
1327 { 1682 {
1328#if EV_USE_NANOSLEEP 1683#if EV_USE_NANOSLEEP
1329 struct timespec ts; 1684 struct timespec ts;
1330 1685
1331 EV_TS_SET (ts, delay); 1686 EV_TS_SET (ts, delay);
1332 nanosleep (&ts, 0); 1687 nanosleep (&ts, 0);
1333#elif defined(_WIN32) 1688#elif defined _WIN32
1334 Sleep ((unsigned long)(delay * 1e3)); 1689 Sleep ((unsigned long)(delay * 1e3));
1335#else 1690#else
1336 struct timeval tv; 1691 struct timeval tv;
1337 1692
1338 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1693 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1410pendingcb (EV_P_ ev_prepare *w, int revents) 1765pendingcb (EV_P_ ev_prepare *w, int revents)
1411{ 1766{
1412} 1767}
1413 1768
1414void noinline 1769void noinline
1415ev_feed_event (EV_P_ void *w, int revents) 1770ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416{ 1771{
1417 W w_ = (W)w; 1772 W w_ = (W)w;
1418 int pri = ABSPRI (w_); 1773 int pri = ABSPRI (w_);
1419 1774
1420 if (expect_false (w_->pending)) 1775 if (expect_false (w_->pending))
… …
1424 w_->pending = ++pendingcnt [pri]; 1779 w_->pending = ++pendingcnt [pri];
1425 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1780 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426 pendings [pri][w_->pending - 1].w = w_; 1781 pendings [pri][w_->pending - 1].w = w_;
1427 pendings [pri][w_->pending - 1].events = revents; 1782 pendings [pri][w_->pending - 1].events = revents;
1428 } 1783 }
1784
1785 pendingpri = NUMPRI - 1;
1429} 1786}
1430 1787
1431inline_speed void 1788inline_speed void
1432feed_reverse (EV_P_ W w) 1789feed_reverse (EV_P_ W w)
1433{ 1790{
… …
1479 if (expect_true (!anfd->reify)) 1836 if (expect_true (!anfd->reify))
1480 fd_event_nocheck (EV_A_ fd, revents); 1837 fd_event_nocheck (EV_A_ fd, revents);
1481} 1838}
1482 1839
1483void 1840void
1484ev_feed_fd_event (EV_P_ int fd, int revents) 1841ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485{ 1842{
1486 if (fd >= 0 && fd < anfdmax) 1843 if (fd >= 0 && fd < anfdmax)
1487 fd_event_nocheck (EV_A_ fd, revents); 1844 fd_event_nocheck (EV_A_ fd, revents);
1488} 1845}
1489 1846
… …
1808static void noinline ecb_cold 2165static void noinline ecb_cold
1809evpipe_init (EV_P) 2166evpipe_init (EV_P)
1810{ 2167{
1811 if (!ev_is_active (&pipe_w)) 2168 if (!ev_is_active (&pipe_w))
1812 { 2169 {
2170 int fds [2];
2171
1813# if EV_USE_EVENTFD 2172# if EV_USE_EVENTFD
2173 fds [0] = -1;
1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2174 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815 if (evfd < 0 && errno == EINVAL) 2175 if (fds [1] < 0 && errno == EINVAL)
1816 evfd = eventfd (0, 0); 2176 fds [1] = eventfd (0, 0);
1817 2177
1818 if (evfd >= 0) 2178 if (fds [1] < 0)
2179# endif
1819 { 2180 {
2181 while (pipe (fds))
2182 ev_syserr ("(libev) error creating signal/async pipe");
2183
2184 fd_intern (fds [0]);
2185 }
2186
1820 evpipe [0] = -1; 2187 evpipe [0] = fds [0];
1821 fd_intern (evfd); /* doing it twice doesn't hurt */ 2188
1822 ev_io_set (&pipe_w, evfd, EV_READ); 2189 if (evpipe [1] < 0)
2190 evpipe [1] = fds [1]; /* first call, set write fd */
2191 else
2192 {
2193 /* on subsequent calls, do not change evpipe [1] */
2194 /* so that evpipe_write can always rely on its value. */
2195 /* this branch does not do anything sensible on windows, */
2196 /* so must not be executed on windows */
2197
2198 dup2 (fds [1], evpipe [1]);
2199 close (fds [1]);
2200 }
2201
2202 fd_intern (evpipe [1]);
2203
2204 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2205 ev_io_start (EV_A_ &pipe_w);
2206 ev_unref (EV_A); /* watcher should not keep loop alive */
2207 }
2208}
2209
2210inline_speed void
2211evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2212{
2213 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2214
2215 if (expect_true (*flag))
2216 return;
2217
2218 *flag = 1;
2219 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2220
2221 pipe_write_skipped = 1;
2222
2223 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2224
2225 if (pipe_write_wanted)
2226 {
2227 int old_errno;
2228
2229 pipe_write_skipped = 0;
2230 ECB_MEMORY_FENCE_RELEASE;
2231
2232 old_errno = errno; /* save errno because write will clobber it */
2233
2234#if EV_USE_EVENTFD
2235 if (evpipe [0] < 0)
2236 {
2237 uint64_t counter = 1;
2238 write (evpipe [1], &counter, sizeof (uint64_t));
1823 } 2239 }
1824 else 2240 else
1825# endif 2241#endif
1826 { 2242 {
1827 while (pipe (evpipe)) 2243#ifdef _WIN32
1828 ev_syserr ("(libev) error creating signal/async pipe"); 2244 WSABUF buf;
1829 2245 DWORD sent;
1830 fd_intern (evpipe [0]); 2246 buf.buf = &buf;
1831 fd_intern (evpipe [1]); 2247 buf.len = 1;
1832 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2248 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833 } 2249#else
1834
1835 ev_io_start (EV_A_ &pipe_w);
1836 ev_unref (EV_A); /* watcher should not keep loop alive */
1837 }
1838}
1839
1840inline_speed void
1841evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1842{
1843 if (expect_true (*flag))
1844 return;
1845
1846 *flag = 1;
1847
1848 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1849
1850 pipe_write_skipped = 1;
1851
1852 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1853
1854 if (pipe_write_wanted)
1855 {
1856 int old_errno;
1857
1858 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1859
1860 old_errno = errno; /* save errno because write will clobber it */
1861
1862#if EV_USE_EVENTFD
1863 if (evfd >= 0)
1864 {
1865 uint64_t counter = 1;
1866 write (evfd, &counter, sizeof (uint64_t));
1867 }
1868 else
1869#endif
1870 {
1871 /* win32 people keep sending patches that change this write() to send() */
1872 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1873 /* so when you think this write should be a send instead, please find out */
1874 /* where your send() is from - it's definitely not the microsoft send, and */
1875 /* tell me. thank you. */
1876 /* it might be that your problem is that your environment needs EV_USE_WSASOCKET */
1877 /* check the ev documentation on how to use this flag */
1878 write (evpipe [1], &(evpipe [1]), 1); 2250 write (evpipe [1], &(evpipe [1]), 1);
2251#endif
1879 } 2252 }
1880 2253
1881 errno = old_errno; 2254 errno = old_errno;
1882 } 2255 }
1883} 2256}
… …
1890 int i; 2263 int i;
1891 2264
1892 if (revents & EV_READ) 2265 if (revents & EV_READ)
1893 { 2266 {
1894#if EV_USE_EVENTFD 2267#if EV_USE_EVENTFD
1895 if (evfd >= 0) 2268 if (evpipe [0] < 0)
1896 { 2269 {
1897 uint64_t counter; 2270 uint64_t counter;
1898 read (evfd, &counter, sizeof (uint64_t)); 2271 read (evpipe [1], &counter, sizeof (uint64_t));
1899 } 2272 }
1900 else 2273 else
1901#endif 2274#endif
1902 { 2275 {
1903 char dummy; 2276 char dummy[4];
1904 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2277#ifdef _WIN32
2278 WSABUF buf;
2279 DWORD recvd;
2280 DWORD flags = 0;
2281 buf.buf = dummy;
2282 buf.len = sizeof (dummy);
2283 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2284#else
1905 read (evpipe [0], &dummy, 1); 2285 read (evpipe [0], &dummy, sizeof (dummy));
2286#endif
1906 } 2287 }
1907 } 2288 }
1908 2289
1909 pipe_write_skipped = 0; 2290 pipe_write_skipped = 0;
2291
2292 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1910 2293
1911#if EV_SIGNAL_ENABLE 2294#if EV_SIGNAL_ENABLE
1912 if (sig_pending) 2295 if (sig_pending)
1913 { 2296 {
1914 sig_pending = 0; 2297 sig_pending = 0;
2298
2299 ECB_MEMORY_FENCE;
1915 2300
1916 for (i = EV_NSIG - 1; i--; ) 2301 for (i = EV_NSIG - 1; i--; )
1917 if (expect_false (signals [i].pending)) 2302 if (expect_false (signals [i].pending))
1918 ev_feed_signal_event (EV_A_ i + 1); 2303 ev_feed_signal_event (EV_A_ i + 1);
1919 } 2304 }
… …
1921 2306
1922#if EV_ASYNC_ENABLE 2307#if EV_ASYNC_ENABLE
1923 if (async_pending) 2308 if (async_pending)
1924 { 2309 {
1925 async_pending = 0; 2310 async_pending = 0;
2311
2312 ECB_MEMORY_FENCE;
1926 2313
1927 for (i = asynccnt; i--; ) 2314 for (i = asynccnt; i--; )
1928 if (asyncs [i]->sent) 2315 if (asyncs [i]->sent)
1929 { 2316 {
1930 asyncs [i]->sent = 0; 2317 asyncs [i]->sent = 0;
2318 ECB_MEMORY_FENCE_RELEASE;
1931 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2319 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1932 } 2320 }
1933 } 2321 }
1934#endif 2322#endif
1935} 2323}
1936 2324
1937/*****************************************************************************/ 2325/*****************************************************************************/
1938 2326
1939void 2327void
1940ev_feed_signal (int signum) 2328ev_feed_signal (int signum) EV_THROW
1941{ 2329{
1942#if EV_MULTIPLICITY 2330#if EV_MULTIPLICITY
2331 EV_P;
2332 ECB_MEMORY_FENCE_ACQUIRE;
1943 EV_P = signals [signum - 1].loop; 2333 EV_A = signals [signum - 1].loop;
1944 2334
1945 if (!EV_A) 2335 if (!EV_A)
1946 return; 2336 return;
1947#endif 2337#endif
1948 2338
1949 if (!ev_active (&pipe_w))
1950 return;
1951
1952 signals [signum - 1].pending = 1; 2339 signals [signum - 1].pending = 1;
1953 evpipe_write (EV_A_ &sig_pending); 2340 evpipe_write (EV_A_ &sig_pending);
1954} 2341}
1955 2342
1956static void 2343static void
… …
1962 2349
1963 ev_feed_signal (signum); 2350 ev_feed_signal (signum);
1964} 2351}
1965 2352
1966void noinline 2353void noinline
1967ev_feed_signal_event (EV_P_ int signum) 2354ev_feed_signal_event (EV_P_ int signum) EV_THROW
1968{ 2355{
1969 WL w; 2356 WL w;
1970 2357
1971 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2358 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1972 return; 2359 return;
1973 2360
1974 --signum; 2361 --signum;
1975 2362
1976#if EV_MULTIPLICITY 2363#if EV_MULTIPLICITY
… …
1980 if (expect_false (signals [signum].loop != EV_A)) 2367 if (expect_false (signals [signum].loop != EV_A))
1981 return; 2368 return;
1982#endif 2369#endif
1983 2370
1984 signals [signum].pending = 0; 2371 signals [signum].pending = 0;
2372 ECB_MEMORY_FENCE_RELEASE;
1985 2373
1986 for (w = signals [signum].head; w; w = w->next) 2374 for (w = signals [signum].head; w; w = w->next)
1987 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2375 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1988} 2376}
1989 2377
… …
2088#if EV_USE_SELECT 2476#if EV_USE_SELECT
2089# include "ev_select.c" 2477# include "ev_select.c"
2090#endif 2478#endif
2091 2479
2092int ecb_cold 2480int ecb_cold
2093ev_version_major (void) 2481ev_version_major (void) EV_THROW
2094{ 2482{
2095 return EV_VERSION_MAJOR; 2483 return EV_VERSION_MAJOR;
2096} 2484}
2097 2485
2098int ecb_cold 2486int ecb_cold
2099ev_version_minor (void) 2487ev_version_minor (void) EV_THROW
2100{ 2488{
2101 return EV_VERSION_MINOR; 2489 return EV_VERSION_MINOR;
2102} 2490}
2103 2491
2104/* return true if we are running with elevated privileges and should ignore env variables */ 2492/* return true if we are running with elevated privileges and should ignore env variables */
… …
2112 || getgid () != getegid (); 2500 || getgid () != getegid ();
2113#endif 2501#endif
2114} 2502}
2115 2503
2116unsigned int ecb_cold 2504unsigned int ecb_cold
2117ev_supported_backends (void) 2505ev_supported_backends (void) EV_THROW
2118{ 2506{
2119 unsigned int flags = 0; 2507 unsigned int flags = 0;
2120 2508
2121 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2509 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2122 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2510 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2126 2514
2127 return flags; 2515 return flags;
2128} 2516}
2129 2517
2130unsigned int ecb_cold 2518unsigned int ecb_cold
2131ev_recommended_backends (void) 2519ev_recommended_backends (void) EV_THROW
2132{ 2520{
2133 unsigned int flags = ev_supported_backends (); 2521 unsigned int flags = ev_supported_backends ();
2134 2522
2135#ifndef __NetBSD__ 2523#ifndef __NetBSD__
2136 /* kqueue is borked on everything but netbsd apparently */ 2524 /* kqueue is borked on everything but netbsd apparently */
… …
2148 2536
2149 return flags; 2537 return flags;
2150} 2538}
2151 2539
2152unsigned int ecb_cold 2540unsigned int ecb_cold
2153ev_embeddable_backends (void) 2541ev_embeddable_backends (void) EV_THROW
2154{ 2542{
2155 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2543 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2156 2544
2157 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2545 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2158 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2546 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2160 2548
2161 return flags; 2549 return flags;
2162} 2550}
2163 2551
2164unsigned int 2552unsigned int
2165ev_backend (EV_P) 2553ev_backend (EV_P) EV_THROW
2166{ 2554{
2167 return backend; 2555 return backend;
2168} 2556}
2169 2557
2170#if EV_FEATURE_API 2558#if EV_FEATURE_API
2171unsigned int 2559unsigned int
2172ev_iteration (EV_P) 2560ev_iteration (EV_P) EV_THROW
2173{ 2561{
2174 return loop_count; 2562 return loop_count;
2175} 2563}
2176 2564
2177unsigned int 2565unsigned int
2178ev_depth (EV_P) 2566ev_depth (EV_P) EV_THROW
2179{ 2567{
2180 return loop_depth; 2568 return loop_depth;
2181} 2569}
2182 2570
2183void 2571void
2184ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2572ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2185{ 2573{
2186 io_blocktime = interval; 2574 io_blocktime = interval;
2187} 2575}
2188 2576
2189void 2577void
2190ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2578ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191{ 2579{
2192 timeout_blocktime = interval; 2580 timeout_blocktime = interval;
2193} 2581}
2194 2582
2195void 2583void
2196ev_set_userdata (EV_P_ void *data) 2584ev_set_userdata (EV_P_ void *data) EV_THROW
2197{ 2585{
2198 userdata = data; 2586 userdata = data;
2199} 2587}
2200 2588
2201void * 2589void *
2202ev_userdata (EV_P) 2590ev_userdata (EV_P) EV_THROW
2203{ 2591{
2204 return userdata; 2592 return userdata;
2205} 2593}
2206 2594
2207void 2595void
2208ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2596ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2209{ 2597{
2210 invoke_cb = invoke_pending_cb; 2598 invoke_cb = invoke_pending_cb;
2211} 2599}
2212 2600
2213void 2601void
2214ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2602ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2215{ 2603{
2216 release_cb = release; 2604 release_cb = release;
2217 acquire_cb = acquire; 2605 acquire_cb = acquire;
2218} 2606}
2219#endif 2607#endif
2220 2608
2221/* initialise a loop structure, must be zero-initialised */ 2609/* initialise a loop structure, must be zero-initialised */
2222static void noinline ecb_cold 2610static void noinline ecb_cold
2223loop_init (EV_P_ unsigned int flags) 2611loop_init (EV_P_ unsigned int flags) EV_THROW
2224{ 2612{
2225 if (!backend) 2613 if (!backend)
2226 { 2614 {
2227 origflags = flags; 2615 origflags = flags;
2228 2616
… …
2273#if EV_ASYNC_ENABLE 2661#if EV_ASYNC_ENABLE
2274 async_pending = 0; 2662 async_pending = 0;
2275#endif 2663#endif
2276 pipe_write_skipped = 0; 2664 pipe_write_skipped = 0;
2277 pipe_write_wanted = 0; 2665 pipe_write_wanted = 0;
2666 evpipe [0] = -1;
2667 evpipe [1] = -1;
2278#if EV_USE_INOTIFY 2668#if EV_USE_INOTIFY
2279 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2669 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2280#endif 2670#endif
2281#if EV_USE_SIGNALFD 2671#if EV_USE_SIGNALFD
2282 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2672 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2333 EV_INVOKE_PENDING; 2723 EV_INVOKE_PENDING;
2334 } 2724 }
2335#endif 2725#endif
2336 2726
2337#if EV_CHILD_ENABLE 2727#if EV_CHILD_ENABLE
2338 if (ev_is_active (&childev)) 2728 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2339 { 2729 {
2340 ev_ref (EV_A); /* child watcher */ 2730 ev_ref (EV_A); /* child watcher */
2341 ev_signal_stop (EV_A_ &childev); 2731 ev_signal_stop (EV_A_ &childev);
2342 } 2732 }
2343#endif 2733#endif
… …
2345 if (ev_is_active (&pipe_w)) 2735 if (ev_is_active (&pipe_w))
2346 { 2736 {
2347 /*ev_ref (EV_A);*/ 2737 /*ev_ref (EV_A);*/
2348 /*ev_io_stop (EV_A_ &pipe_w);*/ 2738 /*ev_io_stop (EV_A_ &pipe_w);*/
2349 2739
2350#if EV_USE_EVENTFD
2351 if (evfd >= 0)
2352 close (evfd);
2353#endif
2354
2355 if (evpipe [0] >= 0)
2356 {
2357 EV_WIN32_CLOSE_FD (evpipe [0]); 2740 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2358 EV_WIN32_CLOSE_FD (evpipe [1]); 2741 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2359 }
2360 } 2742 }
2361 2743
2362#if EV_USE_SIGNALFD 2744#if EV_USE_SIGNALFD
2363 if (ev_is_active (&sigfd_w)) 2745 if (ev_is_active (&sigfd_w))
2364 close (sigfd); 2746 close (sigfd);
… …
2450#endif 2832#endif
2451#if EV_USE_INOTIFY 2833#if EV_USE_INOTIFY
2452 infy_fork (EV_A); 2834 infy_fork (EV_A);
2453#endif 2835#endif
2454 2836
2837#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455 if (ev_is_active (&pipe_w)) 2838 if (ev_is_active (&pipe_w))
2456 { 2839 {
2457 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2840 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2458 2841
2459 ev_ref (EV_A); 2842 ev_ref (EV_A);
2460 ev_io_stop (EV_A_ &pipe_w); 2843 ev_io_stop (EV_A_ &pipe_w);
2461 2844
2462#if EV_USE_EVENTFD
2463 if (evfd >= 0)
2464 close (evfd);
2465#endif
2466
2467 if (evpipe [0] >= 0) 2845 if (evpipe [0] >= 0)
2468 {
2469 EV_WIN32_CLOSE_FD (evpipe [0]); 2846 EV_WIN32_CLOSE_FD (evpipe [0]);
2470 EV_WIN32_CLOSE_FD (evpipe [1]);
2471 }
2472 2847
2473#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2474 evpipe_init (EV_A); 2848 evpipe_init (EV_A);
2475 /* now iterate over everything, in case we missed something */ 2849 /* iterate over everything, in case we missed something before */
2476 pipecb (EV_A_ &pipe_w, EV_READ); 2850 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2477#endif
2478 } 2851 }
2852#endif
2479 2853
2480 postfork = 0; 2854 postfork = 0;
2481} 2855}
2482 2856
2483#if EV_MULTIPLICITY 2857#if EV_MULTIPLICITY
2484 2858
2485struct ev_loop * ecb_cold 2859struct ev_loop * ecb_cold
2486ev_loop_new (unsigned int flags) 2860ev_loop_new (unsigned int flags) EV_THROW
2487{ 2861{
2488 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2862 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2489 2863
2490 memset (EV_A, 0, sizeof (struct ev_loop)); 2864 memset (EV_A, 0, sizeof (struct ev_loop));
2491 loop_init (EV_A_ flags); 2865 loop_init (EV_A_ flags);
… …
2535} 2909}
2536#endif 2910#endif
2537 2911
2538#if EV_FEATURE_API 2912#if EV_FEATURE_API
2539void ecb_cold 2913void ecb_cold
2540ev_verify (EV_P) 2914ev_verify (EV_P) EV_THROW
2541{ 2915{
2542#if EV_VERIFY 2916#if EV_VERIFY
2543 int i; 2917 int i;
2544 WL w; 2918 WL w, w2;
2545 2919
2546 assert (activecnt >= -1); 2920 assert (activecnt >= -1);
2547 2921
2548 assert (fdchangemax >= fdchangecnt); 2922 assert (fdchangemax >= fdchangecnt);
2549 for (i = 0; i < fdchangecnt; ++i) 2923 for (i = 0; i < fdchangecnt; ++i)
2550 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2924 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2551 2925
2552 assert (anfdmax >= 0); 2926 assert (anfdmax >= 0);
2553 for (i = 0; i < anfdmax; ++i) 2927 for (i = 0; i < anfdmax; ++i)
2928 {
2929 int j = 0;
2930
2554 for (w = anfds [i].head; w; w = w->next) 2931 for (w = w2 = anfds [i].head; w; w = w->next)
2555 { 2932 {
2556 verify_watcher (EV_A_ (W)w); 2933 verify_watcher (EV_A_ (W)w);
2934
2935 if (j++ & 1)
2936 {
2937 assert (("libev: io watcher list contains a loop", w != w2));
2938 w2 = w2->next;
2939 }
2940
2557 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2941 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2558 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2942 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2559 } 2943 }
2944 }
2560 2945
2561 assert (timermax >= timercnt); 2946 assert (timermax >= timercnt);
2562 verify_heap (EV_A_ timers, timercnt); 2947 verify_heap (EV_A_ timers, timercnt);
2563 2948
2564#if EV_PERIODIC_ENABLE 2949#if EV_PERIODIC_ENABLE
… …
2614#if EV_MULTIPLICITY 2999#if EV_MULTIPLICITY
2615struct ev_loop * ecb_cold 3000struct ev_loop * ecb_cold
2616#else 3001#else
2617int 3002int
2618#endif 3003#endif
2619ev_default_loop (unsigned int flags) 3004ev_default_loop (unsigned int flags) EV_THROW
2620{ 3005{
2621 if (!ev_default_loop_ptr) 3006 if (!ev_default_loop_ptr)
2622 { 3007 {
2623#if EV_MULTIPLICITY 3008#if EV_MULTIPLICITY
2624 EV_P = ev_default_loop_ptr = &default_loop_struct; 3009 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2643 3028
2644 return ev_default_loop_ptr; 3029 return ev_default_loop_ptr;
2645} 3030}
2646 3031
2647void 3032void
2648ev_loop_fork (EV_P) 3033ev_loop_fork (EV_P) EV_THROW
2649{ 3034{
2650 postfork = 1; /* must be in line with ev_default_fork */ 3035 postfork = 1;
2651} 3036}
2652 3037
2653/*****************************************************************************/ 3038/*****************************************************************************/
2654 3039
2655void 3040void
… …
2657{ 3042{
2658 EV_CB_INVOKE ((W)w, revents); 3043 EV_CB_INVOKE ((W)w, revents);
2659} 3044}
2660 3045
2661unsigned int 3046unsigned int
2662ev_pending_count (EV_P) 3047ev_pending_count (EV_P) EV_THROW
2663{ 3048{
2664 int pri; 3049 int pri;
2665 unsigned int count = 0; 3050 unsigned int count = 0;
2666 3051
2667 for (pri = NUMPRI; pri--; ) 3052 for (pri = NUMPRI; pri--; )
… …
2671} 3056}
2672 3057
2673void noinline 3058void noinline
2674ev_invoke_pending (EV_P) 3059ev_invoke_pending (EV_P)
2675{ 3060{
2676 int pri; 3061 pendingpri = NUMPRI;
2677 3062
2678 for (pri = NUMPRI; pri--; ) 3063 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3064 {
3065 --pendingpri;
3066
2679 while (pendingcnt [pri]) 3067 while (pendingcnt [pendingpri])
2680 { 3068 {
2681 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3069 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2682 3070
2683 p->w->pending = 0; 3071 p->w->pending = 0;
2684 EV_CB_INVOKE (p->w, p->events); 3072 EV_CB_INVOKE (p->w, p->events);
2685 EV_FREQUENT_CHECK; 3073 EV_FREQUENT_CHECK;
2686 } 3074 }
3075 }
2687} 3076}
2688 3077
2689#if EV_IDLE_ENABLE 3078#if EV_IDLE_ENABLE
2690/* make idle watchers pending. this handles the "call-idle */ 3079/* make idle watchers pending. this handles the "call-idle */
2691/* only when higher priorities are idle" logic */ 3080/* only when higher priorities are idle" logic */
… …
2781{ 3170{
2782 EV_FREQUENT_CHECK; 3171 EV_FREQUENT_CHECK;
2783 3172
2784 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3173 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2785 { 3174 {
2786 int feed_count = 0;
2787
2788 do 3175 do
2789 { 3176 {
2790 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3177 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2791 3178
2792 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3179 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2926 3313
2927 mn_now = ev_rt_now; 3314 mn_now = ev_rt_now;
2928 } 3315 }
2929} 3316}
2930 3317
2931void 3318int
2932ev_run (EV_P_ int flags) 3319ev_run (EV_P_ int flags)
2933{ 3320{
2934#if EV_FEATURE_API 3321#if EV_FEATURE_API
2935 ++loop_depth; 3322 ++loop_depth;
2936#endif 3323#endif
… …
3051 backend_poll (EV_A_ waittime); 3438 backend_poll (EV_A_ waittime);
3052 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3439 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3053 3440
3054 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3441 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3055 3442
3443 ECB_MEMORY_FENCE_ACQUIRE;
3056 if (pipe_write_skipped) 3444 if (pipe_write_skipped)
3057 { 3445 {
3058 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3446 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3059 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3447 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3060 } 3448 }
… …
3093 loop_done = EVBREAK_CANCEL; 3481 loop_done = EVBREAK_CANCEL;
3094 3482
3095#if EV_FEATURE_API 3483#if EV_FEATURE_API
3096 --loop_depth; 3484 --loop_depth;
3097#endif 3485#endif
3486
3487 return activecnt;
3098} 3488}
3099 3489
3100void 3490void
3101ev_break (EV_P_ int how) 3491ev_break (EV_P_ int how) EV_THROW
3102{ 3492{
3103 loop_done = how; 3493 loop_done = how;
3104} 3494}
3105 3495
3106void 3496void
3107ev_ref (EV_P) 3497ev_ref (EV_P) EV_THROW
3108{ 3498{
3109 ++activecnt; 3499 ++activecnt;
3110} 3500}
3111 3501
3112void 3502void
3113ev_unref (EV_P) 3503ev_unref (EV_P) EV_THROW
3114{ 3504{
3115 --activecnt; 3505 --activecnt;
3116} 3506}
3117 3507
3118void 3508void
3119ev_now_update (EV_P) 3509ev_now_update (EV_P) EV_THROW
3120{ 3510{
3121 time_update (EV_A_ 1e100); 3511 time_update (EV_A_ 1e100);
3122} 3512}
3123 3513
3124void 3514void
3125ev_suspend (EV_P) 3515ev_suspend (EV_P) EV_THROW
3126{ 3516{
3127 ev_now_update (EV_A); 3517 ev_now_update (EV_A);
3128} 3518}
3129 3519
3130void 3520void
3131ev_resume (EV_P) 3521ev_resume (EV_P) EV_THROW
3132{ 3522{
3133 ev_tstamp mn_prev = mn_now; 3523 ev_tstamp mn_prev = mn_now;
3134 3524
3135 ev_now_update (EV_A); 3525 ev_now_update (EV_A);
3136 timers_reschedule (EV_A_ mn_now - mn_prev); 3526 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3175 w->pending = 0; 3565 w->pending = 0;
3176 } 3566 }
3177} 3567}
3178 3568
3179int 3569int
3180ev_clear_pending (EV_P_ void *w) 3570ev_clear_pending (EV_P_ void *w) EV_THROW
3181{ 3571{
3182 W w_ = (W)w; 3572 W w_ = (W)w;
3183 int pending = w_->pending; 3573 int pending = w_->pending;
3184 3574
3185 if (expect_true (pending)) 3575 if (expect_true (pending))
… …
3218} 3608}
3219 3609
3220/*****************************************************************************/ 3610/*****************************************************************************/
3221 3611
3222void noinline 3612void noinline
3223ev_io_start (EV_P_ ev_io *w) 3613ev_io_start (EV_P_ ev_io *w) EV_THROW
3224{ 3614{
3225 int fd = w->fd; 3615 int fd = w->fd;
3226 3616
3227 if (expect_false (ev_is_active (w))) 3617 if (expect_false (ev_is_active (w)))
3228 return; 3618 return;
… …
3234 3624
3235 ev_start (EV_A_ (W)w, 1); 3625 ev_start (EV_A_ (W)w, 1);
3236 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3626 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3237 wlist_add (&anfds[fd].head, (WL)w); 3627 wlist_add (&anfds[fd].head, (WL)w);
3238 3628
3629 /* common bug, apparently */
3630 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3631
3239 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3632 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3240 w->events &= ~EV__IOFDSET; 3633 w->events &= ~EV__IOFDSET;
3241 3634
3242 EV_FREQUENT_CHECK; 3635 EV_FREQUENT_CHECK;
3243} 3636}
3244 3637
3245void noinline 3638void noinline
3246ev_io_stop (EV_P_ ev_io *w) 3639ev_io_stop (EV_P_ ev_io *w) EV_THROW
3247{ 3640{
3248 clear_pending (EV_A_ (W)w); 3641 clear_pending (EV_A_ (W)w);
3249 if (expect_false (!ev_is_active (w))) 3642 if (expect_false (!ev_is_active (w)))
3250 return; 3643 return;
3251 3644
… …
3260 3653
3261 EV_FREQUENT_CHECK; 3654 EV_FREQUENT_CHECK;
3262} 3655}
3263 3656
3264void noinline 3657void noinline
3265ev_timer_start (EV_P_ ev_timer *w) 3658ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3266{ 3659{
3267 if (expect_false (ev_is_active (w))) 3660 if (expect_false (ev_is_active (w)))
3268 return; 3661 return;
3269 3662
3270 ev_at (w) += mn_now; 3663 ev_at (w) += mn_now;
… …
3284 3677
3285 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3678 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3286} 3679}
3287 3680
3288void noinline 3681void noinline
3289ev_timer_stop (EV_P_ ev_timer *w) 3682ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3290{ 3683{
3291 clear_pending (EV_A_ (W)w); 3684 clear_pending (EV_A_ (W)w);
3292 if (expect_false (!ev_is_active (w))) 3685 if (expect_false (!ev_is_active (w)))
3293 return; 3686 return;
3294 3687
… …
3314 3707
3315 EV_FREQUENT_CHECK; 3708 EV_FREQUENT_CHECK;
3316} 3709}
3317 3710
3318void noinline 3711void noinline
3319ev_timer_again (EV_P_ ev_timer *w) 3712ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3320{ 3713{
3321 EV_FREQUENT_CHECK; 3714 EV_FREQUENT_CHECK;
3322 3715
3323 clear_pending (EV_A_ (W)w); 3716 clear_pending (EV_A_ (W)w);
3324 3717
… …
3341 3734
3342 EV_FREQUENT_CHECK; 3735 EV_FREQUENT_CHECK;
3343} 3736}
3344 3737
3345ev_tstamp 3738ev_tstamp
3346ev_timer_remaining (EV_P_ ev_timer *w) 3739ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3347{ 3740{
3348 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3741 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3349} 3742}
3350 3743
3351#if EV_PERIODIC_ENABLE 3744#if EV_PERIODIC_ENABLE
3352void noinline 3745void noinline
3353ev_periodic_start (EV_P_ ev_periodic *w) 3746ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3354{ 3747{
3355 if (expect_false (ev_is_active (w))) 3748 if (expect_false (ev_is_active (w)))
3356 return; 3749 return;
3357 3750
3358 if (w->reschedule_cb) 3751 if (w->reschedule_cb)
… …
3378 3771
3379 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3772 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3380} 3773}
3381 3774
3382void noinline 3775void noinline
3383ev_periodic_stop (EV_P_ ev_periodic *w) 3776ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3384{ 3777{
3385 clear_pending (EV_A_ (W)w); 3778 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 3779 if (expect_false (!ev_is_active (w)))
3387 return; 3780 return;
3388 3781
… …
3406 3799
3407 EV_FREQUENT_CHECK; 3800 EV_FREQUENT_CHECK;
3408} 3801}
3409 3802
3410void noinline 3803void noinline
3411ev_periodic_again (EV_P_ ev_periodic *w) 3804ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3412{ 3805{
3413 /* TODO: use adjustheap and recalculation */ 3806 /* TODO: use adjustheap and recalculation */
3414 ev_periodic_stop (EV_A_ w); 3807 ev_periodic_stop (EV_A_ w);
3415 ev_periodic_start (EV_A_ w); 3808 ev_periodic_start (EV_A_ w);
3416} 3809}
… …
3421#endif 3814#endif
3422 3815
3423#if EV_SIGNAL_ENABLE 3816#if EV_SIGNAL_ENABLE
3424 3817
3425void noinline 3818void noinline
3426ev_signal_start (EV_P_ ev_signal *w) 3819ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3427{ 3820{
3428 if (expect_false (ev_is_active (w))) 3821 if (expect_false (ev_is_active (w)))
3429 return; 3822 return;
3430 3823
3431 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3824 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3433#if EV_MULTIPLICITY 3826#if EV_MULTIPLICITY
3434 assert (("libev: a signal must not be attached to two different loops", 3827 assert (("libev: a signal must not be attached to two different loops",
3435 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3828 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3436 3829
3437 signals [w->signum - 1].loop = EV_A; 3830 signals [w->signum - 1].loop = EV_A;
3831 ECB_MEMORY_FENCE_RELEASE;
3438#endif 3832#endif
3439 3833
3440 EV_FREQUENT_CHECK; 3834 EV_FREQUENT_CHECK;
3441 3835
3442#if EV_USE_SIGNALFD 3836#if EV_USE_SIGNALFD
… …
3502 3896
3503 EV_FREQUENT_CHECK; 3897 EV_FREQUENT_CHECK;
3504} 3898}
3505 3899
3506void noinline 3900void noinline
3507ev_signal_stop (EV_P_ ev_signal *w) 3901ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3508{ 3902{
3509 clear_pending (EV_A_ (W)w); 3903 clear_pending (EV_A_ (W)w);
3510 if (expect_false (!ev_is_active (w))) 3904 if (expect_false (!ev_is_active (w)))
3511 return; 3905 return;
3512 3906
… …
3543#endif 3937#endif
3544 3938
3545#if EV_CHILD_ENABLE 3939#if EV_CHILD_ENABLE
3546 3940
3547void 3941void
3548ev_child_start (EV_P_ ev_child *w) 3942ev_child_start (EV_P_ ev_child *w) EV_THROW
3549{ 3943{
3550#if EV_MULTIPLICITY 3944#if EV_MULTIPLICITY
3551 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3945 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3552#endif 3946#endif
3553 if (expect_false (ev_is_active (w))) 3947 if (expect_false (ev_is_active (w)))
… …
3560 3954
3561 EV_FREQUENT_CHECK; 3955 EV_FREQUENT_CHECK;
3562} 3956}
3563 3957
3564void 3958void
3565ev_child_stop (EV_P_ ev_child *w) 3959ev_child_stop (EV_P_ ev_child *w) EV_THROW
3566{ 3960{
3567 clear_pending (EV_A_ (W)w); 3961 clear_pending (EV_A_ (W)w);
3568 if (expect_false (!ev_is_active (w))) 3962 if (expect_false (!ev_is_active (w)))
3569 return; 3963 return;
3570 3964
… …
3597# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3991# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3598 3992
3599static void noinline 3993static void noinline
3600infy_add (EV_P_ ev_stat *w) 3994infy_add (EV_P_ ev_stat *w)
3601{ 3995{
3602 w->wd = inotify_add_watch (fs_fd, w->path, IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY | IN_DONT_FOLLOW | IN_MASK_ADD); 3996 w->wd = inotify_add_watch (fs_fd, w->path,
3997 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3998 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3999 | IN_DONT_FOLLOW | IN_MASK_ADD);
3603 4000
3604 if (w->wd >= 0) 4001 if (w->wd >= 0)
3605 { 4002 {
3606 struct statfs sfs; 4003 struct statfs sfs;
3607 4004
… …
3611 4008
3612 if (!fs_2625) 4009 if (!fs_2625)
3613 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 4010 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3614 else if (!statfs (w->path, &sfs) 4011 else if (!statfs (w->path, &sfs)
3615 && (sfs.f_type == 0x1373 /* devfs */ 4012 && (sfs.f_type == 0x1373 /* devfs */
4013 || sfs.f_type == 0x4006 /* fat */
4014 || sfs.f_type == 0x4d44 /* msdos */
3616 || sfs.f_type == 0xEF53 /* ext2/3 */ 4015 || sfs.f_type == 0xEF53 /* ext2/3 */
4016 || sfs.f_type == 0x72b6 /* jffs2 */
4017 || sfs.f_type == 0x858458f6 /* ramfs */
4018 || sfs.f_type == 0x5346544e /* ntfs */
3617 || sfs.f_type == 0x3153464a /* jfs */ 4019 || sfs.f_type == 0x3153464a /* jfs */
4020 || sfs.f_type == 0x9123683e /* btrfs */
3618 || sfs.f_type == 0x52654973 /* reiser3 */ 4021 || sfs.f_type == 0x52654973 /* reiser3 */
3619 || sfs.f_type == 0x01021994 /* tempfs */ 4022 || sfs.f_type == 0x01021994 /* tmpfs */
3620 || sfs.f_type == 0x58465342 /* xfs */)) 4023 || sfs.f_type == 0x58465342 /* xfs */))
3621 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4024 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3622 else 4025 else
3623 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4026 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3624 } 4027 }
… …
3737} 4140}
3738 4141
3739inline_size int 4142inline_size int
3740infy_newfd (void) 4143infy_newfd (void)
3741{ 4144{
3742#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4145#if defined IN_CLOEXEC && defined IN_NONBLOCK
3743 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4146 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3744 if (fd >= 0) 4147 if (fd >= 0)
3745 return fd; 4148 return fd;
3746#endif 4149#endif
3747 return inotify_init (); 4150 return inotify_init ();
… …
3822#else 4225#else
3823# define EV_LSTAT(p,b) lstat (p, b) 4226# define EV_LSTAT(p,b) lstat (p, b)
3824#endif 4227#endif
3825 4228
3826void 4229void
3827ev_stat_stat (EV_P_ ev_stat *w) 4230ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3828{ 4231{
3829 if (lstat (w->path, &w->attr) < 0) 4232 if (lstat (w->path, &w->attr) < 0)
3830 w->attr.st_nlink = 0; 4233 w->attr.st_nlink = 0;
3831 else if (!w->attr.st_nlink) 4234 else if (!w->attr.st_nlink)
3832 w->attr.st_nlink = 1; 4235 w->attr.st_nlink = 1;
… …
3871 ev_feed_event (EV_A_ w, EV_STAT); 4274 ev_feed_event (EV_A_ w, EV_STAT);
3872 } 4275 }
3873} 4276}
3874 4277
3875void 4278void
3876ev_stat_start (EV_P_ ev_stat *w) 4279ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3877{ 4280{
3878 if (expect_false (ev_is_active (w))) 4281 if (expect_false (ev_is_active (w)))
3879 return; 4282 return;
3880 4283
3881 ev_stat_stat (EV_A_ w); 4284 ev_stat_stat (EV_A_ w);
… …
3902 4305
3903 EV_FREQUENT_CHECK; 4306 EV_FREQUENT_CHECK;
3904} 4307}
3905 4308
3906void 4309void
3907ev_stat_stop (EV_P_ ev_stat *w) 4310ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3908{ 4311{
3909 clear_pending (EV_A_ (W)w); 4312 clear_pending (EV_A_ (W)w);
3910 if (expect_false (!ev_is_active (w))) 4313 if (expect_false (!ev_is_active (w)))
3911 return; 4314 return;
3912 4315
… …
3928} 4331}
3929#endif 4332#endif
3930 4333
3931#if EV_IDLE_ENABLE 4334#if EV_IDLE_ENABLE
3932void 4335void
3933ev_idle_start (EV_P_ ev_idle *w) 4336ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3934{ 4337{
3935 if (expect_false (ev_is_active (w))) 4338 if (expect_false (ev_is_active (w)))
3936 return; 4339 return;
3937 4340
3938 pri_adjust (EV_A_ (W)w); 4341 pri_adjust (EV_A_ (W)w);
… …
3951 4354
3952 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
3953} 4356}
3954 4357
3955void 4358void
3956ev_idle_stop (EV_P_ ev_idle *w) 4359ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3957{ 4360{
3958 clear_pending (EV_A_ (W)w); 4361 clear_pending (EV_A_ (W)w);
3959 if (expect_false (!ev_is_active (w))) 4362 if (expect_false (!ev_is_active (w)))
3960 return; 4363 return;
3961 4364
… …
3975} 4378}
3976#endif 4379#endif
3977 4380
3978#if EV_PREPARE_ENABLE 4381#if EV_PREPARE_ENABLE
3979void 4382void
3980ev_prepare_start (EV_P_ ev_prepare *w) 4383ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3981{ 4384{
3982 if (expect_false (ev_is_active (w))) 4385 if (expect_false (ev_is_active (w)))
3983 return; 4386 return;
3984 4387
3985 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
… …
3990 4393
3991 EV_FREQUENT_CHECK; 4394 EV_FREQUENT_CHECK;
3992} 4395}
3993 4396
3994void 4397void
3995ev_prepare_stop (EV_P_ ev_prepare *w) 4398ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3996{ 4399{
3997 clear_pending (EV_A_ (W)w); 4400 clear_pending (EV_A_ (W)w);
3998 if (expect_false (!ev_is_active (w))) 4401 if (expect_false (!ev_is_active (w)))
3999 return; 4402 return;
4000 4403
… …
4013} 4416}
4014#endif 4417#endif
4015 4418
4016#if EV_CHECK_ENABLE 4419#if EV_CHECK_ENABLE
4017void 4420void
4018ev_check_start (EV_P_ ev_check *w) 4421ev_check_start (EV_P_ ev_check *w) EV_THROW
4019{ 4422{
4020 if (expect_false (ev_is_active (w))) 4423 if (expect_false (ev_is_active (w)))
4021 return; 4424 return;
4022 4425
4023 EV_FREQUENT_CHECK; 4426 EV_FREQUENT_CHECK;
… …
4028 4431
4029 EV_FREQUENT_CHECK; 4432 EV_FREQUENT_CHECK;
4030} 4433}
4031 4434
4032void 4435void
4033ev_check_stop (EV_P_ ev_check *w) 4436ev_check_stop (EV_P_ ev_check *w) EV_THROW
4034{ 4437{
4035 clear_pending (EV_A_ (W)w); 4438 clear_pending (EV_A_ (W)w);
4036 if (expect_false (!ev_is_active (w))) 4439 if (expect_false (!ev_is_active (w)))
4037 return; 4440 return;
4038 4441
… …
4051} 4454}
4052#endif 4455#endif
4053 4456
4054#if EV_EMBED_ENABLE 4457#if EV_EMBED_ENABLE
4055void noinline 4458void noinline
4056ev_embed_sweep (EV_P_ ev_embed *w) 4459ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4057{ 4460{
4058 ev_run (w->other, EVRUN_NOWAIT); 4461 ev_run (w->other, EVRUN_NOWAIT);
4059} 4462}
4060 4463
4061static void 4464static void
… …
4109 ev_idle_stop (EV_A_ idle); 4512 ev_idle_stop (EV_A_ idle);
4110} 4513}
4111#endif 4514#endif
4112 4515
4113void 4516void
4114ev_embed_start (EV_P_ ev_embed *w) 4517ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4115{ 4518{
4116 if (expect_false (ev_is_active (w))) 4519 if (expect_false (ev_is_active (w)))
4117 return; 4520 return;
4118 4521
4119 { 4522 {
… …
4140 4543
4141 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
4142} 4545}
4143 4546
4144void 4547void
4145ev_embed_stop (EV_P_ ev_embed *w) 4548ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4146{ 4549{
4147 clear_pending (EV_A_ (W)w); 4550 clear_pending (EV_A_ (W)w);
4148 if (expect_false (!ev_is_active (w))) 4551 if (expect_false (!ev_is_active (w)))
4149 return; 4552 return;
4150 4553
… …
4160} 4563}
4161#endif 4564#endif
4162 4565
4163#if EV_FORK_ENABLE 4566#if EV_FORK_ENABLE
4164void 4567void
4165ev_fork_start (EV_P_ ev_fork *w) 4568ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4166{ 4569{
4167 if (expect_false (ev_is_active (w))) 4570 if (expect_false (ev_is_active (w)))
4168 return; 4571 return;
4169 4572
4170 EV_FREQUENT_CHECK; 4573 EV_FREQUENT_CHECK;
… …
4175 4578
4176 EV_FREQUENT_CHECK; 4579 EV_FREQUENT_CHECK;
4177} 4580}
4178 4581
4179void 4582void
4180ev_fork_stop (EV_P_ ev_fork *w) 4583ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4181{ 4584{
4182 clear_pending (EV_A_ (W)w); 4585 clear_pending (EV_A_ (W)w);
4183 if (expect_false (!ev_is_active (w))) 4586 if (expect_false (!ev_is_active (w)))
4184 return; 4587 return;
4185 4588
… …
4198} 4601}
4199#endif 4602#endif
4200 4603
4201#if EV_CLEANUP_ENABLE 4604#if EV_CLEANUP_ENABLE
4202void 4605void
4203ev_cleanup_start (EV_P_ ev_cleanup *w) 4606ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4204{ 4607{
4205 if (expect_false (ev_is_active (w))) 4608 if (expect_false (ev_is_active (w)))
4206 return; 4609 return;
4207 4610
4208 EV_FREQUENT_CHECK; 4611 EV_FREQUENT_CHECK;
… …
4215 ev_unref (EV_A); 4618 ev_unref (EV_A);
4216 EV_FREQUENT_CHECK; 4619 EV_FREQUENT_CHECK;
4217} 4620}
4218 4621
4219void 4622void
4220ev_cleanup_stop (EV_P_ ev_cleanup *w) 4623ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4221{ 4624{
4222 clear_pending (EV_A_ (W)w); 4625 clear_pending (EV_A_ (W)w);
4223 if (expect_false (!ev_is_active (w))) 4626 if (expect_false (!ev_is_active (w)))
4224 return; 4627 return;
4225 4628
… …
4239} 4642}
4240#endif 4643#endif
4241 4644
4242#if EV_ASYNC_ENABLE 4645#if EV_ASYNC_ENABLE
4243void 4646void
4244ev_async_start (EV_P_ ev_async *w) 4647ev_async_start (EV_P_ ev_async *w) EV_THROW
4245{ 4648{
4246 if (expect_false (ev_is_active (w))) 4649 if (expect_false (ev_is_active (w)))
4247 return; 4650 return;
4248 4651
4249 w->sent = 0; 4652 w->sent = 0;
… …
4258 4661
4259 EV_FREQUENT_CHECK; 4662 EV_FREQUENT_CHECK;
4260} 4663}
4261 4664
4262void 4665void
4263ev_async_stop (EV_P_ ev_async *w) 4666ev_async_stop (EV_P_ ev_async *w) EV_THROW
4264{ 4667{
4265 clear_pending (EV_A_ (W)w); 4668 clear_pending (EV_A_ (W)w);
4266 if (expect_false (!ev_is_active (w))) 4669 if (expect_false (!ev_is_active (w)))
4267 return; 4670 return;
4268 4671
… …
4279 4682
4280 EV_FREQUENT_CHECK; 4683 EV_FREQUENT_CHECK;
4281} 4684}
4282 4685
4283void 4686void
4284ev_async_send (EV_P_ ev_async *w) 4687ev_async_send (EV_P_ ev_async *w) EV_THROW
4285{ 4688{
4286 w->sent = 1; 4689 w->sent = 1;
4287 evpipe_write (EV_A_ &async_pending); 4690 evpipe_write (EV_A_ &async_pending);
4288} 4691}
4289#endif 4692#endif
… …
4326 4729
4327 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4730 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4328} 4731}
4329 4732
4330void 4733void
4331ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4734ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4332{ 4735{
4333 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4736 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4334 4737
4335 if (expect_false (!once)) 4738 if (expect_false (!once))
4336 { 4739 {
… …
4358 4761
4359/*****************************************************************************/ 4762/*****************************************************************************/
4360 4763
4361#if EV_WALK_ENABLE 4764#if EV_WALK_ENABLE
4362void ecb_cold 4765void ecb_cold
4363ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4766ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4364{ 4767{
4365 int i, j; 4768 int i, j;
4366 ev_watcher_list *wl, *wn; 4769 ev_watcher_list *wl, *wn;
4367 4770
4368 if (types & (EV_IO | EV_EMBED)) 4771 if (types & (EV_IO | EV_EMBED))

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