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Comparing libev/ev.c (file contents):
Revision 1.397 by root, Wed Aug 24 16:13:41 2011 UTC vs.
Revision 1.465 by root, Tue Mar 25 17:44:13 2014 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
59# endif 59# endif
60# ifndef EV_USE_MONOTONIC 60# ifndef EV_USE_MONOTONIC
61# define EV_USE_MONOTONIC 1 61# define EV_USE_MONOTONIC 1
62# endif 62# endif
63# endif 63# endif
64# elif !defined(EV_USE_CLOCK_SYSCALL) 64# elif !defined EV_USE_CLOCK_SYSCALL
65# define EV_USE_CLOCK_SYSCALL 0 65# define EV_USE_CLOCK_SYSCALL 0
66# endif 66# endif
67 67
68# if HAVE_CLOCK_GETTIME 68# if HAVE_CLOCK_GETTIME
69# ifndef EV_USE_MONOTONIC 69# ifndef EV_USE_MONOTONIC
… …
183# include EV_H 183# include EV_H
184#else 184#else
185# include "ev.h" 185# include "ev.h"
186#endif 186#endif
187 187
188EV_CPP(extern "C" {) 188#if EV_NO_THREADS
189# undef EV_NO_SMP
190# define EV_NO_SMP 1
191# undef ECB_NO_THREADS
192# define ECB_NO_THREADS 1
193#endif
194#if EV_NO_SMP
195# undef EV_NO_SMP
196# define ECB_NO_SMP 1
197#endif
189 198
190#ifndef _WIN32 199#ifndef _WIN32
191# include <sys/time.h> 200# include <sys/time.h>
192# include <sys/wait.h> 201# include <sys/wait.h>
193# include <unistd.h> 202# include <unistd.h>
194#else 203#else
195# include <io.h> 204# include <io.h>
196# define WIN32_LEAN_AND_MEAN 205# define WIN32_LEAN_AND_MEAN
206# include <winsock2.h>
197# include <windows.h> 207# include <windows.h>
198# ifndef EV_SELECT_IS_WINSOCKET 208# ifndef EV_SELECT_IS_WINSOCKET
199# define EV_SELECT_IS_WINSOCKET 1 209# define EV_SELECT_IS_WINSOCKET 1
200# endif 210# endif
201# undef EV_AVOID_STDIO 211# undef EV_AVOID_STDIO
… …
210#define _DARWIN_UNLIMITED_SELECT 1 220#define _DARWIN_UNLIMITED_SELECT 1
211 221
212/* this block tries to deduce configuration from header-defined symbols and defaults */ 222/* this block tries to deduce configuration from header-defined symbols and defaults */
213 223
214/* try to deduce the maximum number of signals on this platform */ 224/* try to deduce the maximum number of signals on this platform */
215#if defined (EV_NSIG) 225#if defined EV_NSIG
216/* use what's provided */ 226/* use what's provided */
217#elif defined (NSIG) 227#elif defined NSIG
218# define EV_NSIG (NSIG) 228# define EV_NSIG (NSIG)
219#elif defined(_NSIG) 229#elif defined _NSIG
220# define EV_NSIG (_NSIG) 230# define EV_NSIG (_NSIG)
221#elif defined (SIGMAX) 231#elif defined SIGMAX
222# define EV_NSIG (SIGMAX+1) 232# define EV_NSIG (SIGMAX+1)
223#elif defined (SIG_MAX) 233#elif defined SIG_MAX
224# define EV_NSIG (SIG_MAX+1) 234# define EV_NSIG (SIG_MAX+1)
225#elif defined (_SIG_MAX) 235#elif defined _SIG_MAX
226# define EV_NSIG (_SIG_MAX+1) 236# define EV_NSIG (_SIG_MAX+1)
227#elif defined (MAXSIG) 237#elif defined MAXSIG
228# define EV_NSIG (MAXSIG+1) 238# define EV_NSIG (MAXSIG+1)
229#elif defined (MAX_SIG) 239#elif defined MAX_SIG
230# define EV_NSIG (MAX_SIG+1) 240# define EV_NSIG (MAX_SIG+1)
231#elif defined (SIGARRAYSIZE) 241#elif defined SIGARRAYSIZE
232# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */ 242# define EV_NSIG (SIGARRAYSIZE) /* Assume ary[SIGARRAYSIZE] */
233#elif defined (_sys_nsig) 243#elif defined _sys_nsig
234# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */ 244# define EV_NSIG (_sys_nsig) /* Solaris 2.5 */
235#else 245#else
236# error "unable to find value for NSIG, please report" 246# define EV_NSIG (8 * sizeof (sigset_t) + 1)
237/* to make it compile regardless, just remove the above line, */
238/* but consider reporting it, too! :) */
239# define EV_NSIG 65
240#endif 247#endif
241 248
242#ifndef EV_USE_FLOOR 249#ifndef EV_USE_FLOOR
243# define EV_USE_FLOOR 0 250# define EV_USE_FLOOR 0
244#endif 251#endif
245 252
246#ifndef EV_USE_CLOCK_SYSCALL 253#ifndef EV_USE_CLOCK_SYSCALL
247# if __linux && __GLIBC__ >= 2 254# if __linux && __GLIBC__ == 2 && __GLIBC_MINOR__ < 17
248# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS 255# define EV_USE_CLOCK_SYSCALL EV_FEATURE_OS
249# else 256# else
250# define EV_USE_CLOCK_SYSCALL 0 257# define EV_USE_CLOCK_SYSCALL 0
251# endif 258# endif
252#endif 259#endif
253 260
254#ifndef EV_USE_MONOTONIC 261#ifndef EV_USE_MONOTONIC
255# if defined (_POSIX_MONOTONIC_CLOCK) && _POSIX_MONOTONIC_CLOCK >= 0 262# if defined _POSIX_MONOTONIC_CLOCK && _POSIX_MONOTONIC_CLOCK >= 0
256# define EV_USE_MONOTONIC EV_FEATURE_OS 263# define EV_USE_MONOTONIC EV_FEATURE_OS
257# else 264# else
258# define EV_USE_MONOTONIC 0 265# define EV_USE_MONOTONIC 0
259# endif 266# endif
260#endif 267#endif
… …
347 354
348#ifndef EV_HEAP_CACHE_AT 355#ifndef EV_HEAP_CACHE_AT
349# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 356# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
350#endif 357#endif
351 358
359#ifdef ANDROID
360/* supposedly, android doesn't typedef fd_mask */
361# undef EV_USE_SELECT
362# define EV_USE_SELECT 0
363/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
364# undef EV_USE_CLOCK_SYSCALL
365# define EV_USE_CLOCK_SYSCALL 0
366#endif
367
368/* aix's poll.h seems to cause lots of trouble */
369#ifdef _AIX
370/* AIX has a completely broken poll.h header */
371# undef EV_USE_POLL
372# define EV_USE_POLL 0
373#endif
374
352/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 375/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
353/* which makes programs even slower. might work on other unices, too. */ 376/* which makes programs even slower. might work on other unices, too. */
354#if EV_USE_CLOCK_SYSCALL 377#if EV_USE_CLOCK_SYSCALL
355# include <syscall.h> 378# include <sys/syscall.h>
356# ifdef SYS_clock_gettime 379# ifdef SYS_clock_gettime
357# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 380# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
358# undef EV_USE_MONOTONIC 381# undef EV_USE_MONOTONIC
359# define EV_USE_MONOTONIC 1 382# define EV_USE_MONOTONIC 1
360# else 383# else
… …
363# endif 386# endif
364#endif 387#endif
365 388
366/* this block fixes any misconfiguration where we know we run into trouble otherwise */ 389/* this block fixes any misconfiguration where we know we run into trouble otherwise */
367 390
368#ifdef _AIX
369/* AIX has a completely broken poll.h header */
370# undef EV_USE_POLL
371# define EV_USE_POLL 0
372#endif
373
374#ifndef CLOCK_MONOTONIC 391#ifndef CLOCK_MONOTONIC
375# undef EV_USE_MONOTONIC 392# undef EV_USE_MONOTONIC
376# define EV_USE_MONOTONIC 0 393# define EV_USE_MONOTONIC 0
377#endif 394#endif
378 395
… …
386# define EV_USE_INOTIFY 0 403# define EV_USE_INOTIFY 0
387#endif 404#endif
388 405
389#if !EV_USE_NANOSLEEP 406#if !EV_USE_NANOSLEEP
390/* hp-ux has it in sys/time.h, which we unconditionally include above */ 407/* hp-ux has it in sys/time.h, which we unconditionally include above */
391# if !defined(_WIN32) && !defined(__hpux) 408# if !defined _WIN32 && !defined __hpux
392# include <sys/select.h> 409# include <sys/select.h>
393# endif 410# endif
394#endif 411#endif
395 412
396#if EV_USE_INOTIFY 413#if EV_USE_INOTIFY
… …
399/* some very old inotify.h headers don't have IN_DONT_FOLLOW */ 416/* some very old inotify.h headers don't have IN_DONT_FOLLOW */
400# ifndef IN_DONT_FOLLOW 417# ifndef IN_DONT_FOLLOW
401# undef EV_USE_INOTIFY 418# undef EV_USE_INOTIFY
402# define EV_USE_INOTIFY 0 419# define EV_USE_INOTIFY 0
403# endif 420# endif
404#endif
405
406#if EV_SELECT_IS_WINSOCKET
407# include <winsock.h>
408#endif 421#endif
409 422
410#if EV_USE_EVENTFD 423#if EV_USE_EVENTFD
411/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 424/* our minimum requirement is glibc 2.7 which has the stub, but not the header */
412# include <stdint.h> 425# include <stdint.h>
… …
469/* 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 */
470/* ECB.H BEGIN */ 483/* ECB.H BEGIN */
471/* 484/*
472 * libecb - http://software.schmorp.de/pkg/libecb 485 * libecb - http://software.schmorp.de/pkg/libecb
473 * 486 *
474 * Copyright (©) 2009-2011 Marc Alexander Lehmann <libecb@schmorp.de> 487 * Copyright (©) 2009-2014 Marc Alexander Lehmann <libecb@schmorp.de>
475 * Copyright (©) 2011 Emanuele Giaquinta 488 * Copyright (©) 2011 Emanuele Giaquinta
476 * All rights reserved. 489 * All rights reserved.
477 * 490 *
478 * 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-
479 * tion, are permitted provided that the following conditions are met: 492 * tion, are permitted provided that the following conditions are met:
… …
498 */ 511 */
499 512
500#ifndef ECB_H 513#ifndef ECB_H
501#define ECB_H 514#define ECB_H
502 515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
503#ifdef _WIN32 519#ifdef _WIN32
504 typedef signed char int8_t; 520 typedef signed char int8_t;
505 typedef unsigned char uint8_t; 521 typedef unsigned char uint8_t;
506 typedef signed short int16_t; 522 typedef signed short int16_t;
507 typedef unsigned short uint16_t; 523 typedef unsigned short uint16_t;
… …
512 typedef unsigned long long uint64_t; 528 typedef unsigned long long uint64_t;
513 #else /* _MSC_VER || __BORLANDC__ */ 529 #else /* _MSC_VER || __BORLANDC__ */
514 typedef signed __int64 int64_t; 530 typedef signed __int64 int64_t;
515 typedef unsigned __int64 uint64_t; 531 typedef unsigned __int64 uint64_t;
516 #endif 532 #endif
533 #ifdef _WIN64
534 #define ECB_PTRSIZE 8
535 typedef uint64_t uintptr_t;
536 typedef int64_t intptr_t;
537 #else
538 #define ECB_PTRSIZE 4
539 typedef uint32_t uintptr_t;
540 typedef int32_t intptr_t;
541 #endif
517#else 542#else
518 #include <inttypes.h> 543 #include <inttypes.h>
544 #if UINTMAX_MAX > 0xffffffffU
545 #define ECB_PTRSIZE 8
546 #else
547 #define ECB_PTRSIZE 4
548 #endif
549#endif
550
551/* work around x32 idiocy by defining proper macros */
552#if __amd64 || __x86_64 || _M_AMD64 || _M_X64
553 #if _ILP32
554 #define ECB_AMD64_X32 1
555 #else
556 #define ECB_AMD64 1
557 #endif
519#endif 558#endif
520 559
521/* many compilers define _GNUC_ to some versions but then only implement 560/* many compilers define _GNUC_ to some versions but then only implement
522 * what their idiot authors think are the "more important" extensions, 561 * what their idiot authors think are the "more important" extensions,
523 * causing enormous grief in return for some better fake benchmark numbers. 562 * causing enormous grief in return for some better fake benchmark numbers.
524 * or so. 563 * or so.
525 * we try to detect these and simply assume they are not gcc - if they have 564 * we try to detect these and simply assume they are not gcc - if they have
526 * an issue with that they should have done it right in the first place. 565 * an issue with that they should have done it right in the first place.
527 */ 566 */
528#ifndef ECB_GCC_VERSION 567#ifndef ECB_GCC_VERSION
529 #if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__) 568 #if !defined __GNUC_MINOR__ || defined __INTEL_COMPILER || defined __SUNPRO_C || defined __SUNPRO_CC || defined __llvm__ || defined __clang__
530 #define ECB_GCC_VERSION(major,minor) 0 569 #define ECB_GCC_VERSION(major,minor) 0
531 #else 570 #else
532 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor))) 571 #define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
533 #endif 572 #endif
534#endif 573#endif
535 574
575#define ECB_CPP (__cplusplus+0)
576#define ECB_CPP11 (__cplusplus >= 201103L)
577
578#if ECB_CPP
579 #define ECB_C 0
580 #define ECB_STDC_VERSION 0
581#else
582 #define ECB_C 1
583 #define ECB_STDC_VERSION __STDC_VERSION__
584#endif
585
586#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
587#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
588
589#if ECB_CPP
590 #define ECB_EXTERN_C extern "C"
591 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
592 #define ECB_EXTERN_C_END }
593#else
594 #define ECB_EXTERN_C extern
595 #define ECB_EXTERN_C_BEG
596 #define ECB_EXTERN_C_END
597#endif
598
536/*****************************************************************************/ 599/*****************************************************************************/
537 600
538/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 601/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */
539/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */ 602/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
540 603
541#if ECB_NO_THREADS || ECB_NO_SMP 604#if ECB_NO_THREADS
605 #define ECB_NO_SMP 1
606#endif
607
608#if ECB_NO_SMP
542 #define ECB_MEMORY_FENCE do { } while (0) 609 #define ECB_MEMORY_FENCE do { } while (0)
543#endif 610#endif
544 611
545#ifndef ECB_MEMORY_FENCE 612#ifndef ECB_MEMORY_FENCE
546 #if ECB_GCC_VERSION(2,5) 613 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
547 #if __i386__ 614 #if __i386 || __i386__
548 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
549 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE /* non-lock xchg might be enough */ 616 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
550 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 617 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
551 #elif __amd64 618 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
552 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 619 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
553 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 620 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
554 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("sfence") /* play safe - not needed in any current cpu */ 621 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
555 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 622 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
556 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
557 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 624 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
558 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 625 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__
559 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 626 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
560 #elif defined(__ARM_ARCH_7__ ) || defined(__ARM_ARCH_7A__ ) \ 627 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
561 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 628 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
562 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 629 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
630 #elif __aarch64__
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
632 #elif (__sparc || __sparc__) && !__sparcv8
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
634 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
635 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
636 #elif defined __s390__ || defined __s390x__
637 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
638 #elif defined __mips__
639 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
640 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
641 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
642 #elif defined __alpha__
643 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
644 #elif defined __hppa__
645 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
646 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
647 #elif defined __ia64__
648 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
649 #elif defined __m68k__
650 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
651 #elif defined __m88k__
652 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
653 #elif defined __sh__
654 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
563 #endif 655 #endif
564 #endif 656 #endif
565#endif 657#endif
566 658
567#ifndef ECB_MEMORY_FENCE 659#ifndef ECB_MEMORY_FENCE
660 #if ECB_GCC_VERSION(4,7)
661 /* see comment below (stdatomic.h) about the C11 memory model. */
662 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
663 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
664 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
665
666 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
667 * without risking compile time errors with other compilers. We *could*
668 * define our own ecb_clang_has_feature, but I just can't be bothered to work
669 * around this shit time and again.
670 * #elif defined __clang && __has_feature (cxx_atomic)
671 * // see comment below (stdatomic.h) about the C11 memory model.
672 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
673 * #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
674 * #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
675 */
676
568 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) 677 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
569 #define ECB_MEMORY_FENCE __sync_synchronize () 678 #define ECB_MEMORY_FENCE __sync_synchronize ()
570 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 679 #elif _MSC_VER >= 1500 /* VC++ 2008 */
571 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 680 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
681 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
682 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
683 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
684 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
572 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 685 #elif _MSC_VER >= 1400 /* VC++ 2005 */
573 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 686 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
574 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 687 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
575 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 688 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
576 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 689 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
577 #elif defined(_WIN32) 690 #elif defined _WIN32
578 #include <WinNT.h> 691 #include <WinNT.h>
579 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 692 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
693 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
694 #include <mbarrier.h>
695 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
696 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
697 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
698 #elif __xlC__
699 #define ECB_MEMORY_FENCE __sync ()
700 #endif
701#endif
702
703#ifndef ECB_MEMORY_FENCE
704 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
705 /* we assume that these memory fences work on all variables/all memory accesses, */
706 /* not just C11 atomics and atomic accesses */
707 #include <stdatomic.h>
708 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
709 /* any fence other than seq_cst, which isn't very efficient for us. */
710 /* Why that is, we don't know - either the C11 memory model is quite useless */
711 /* for most usages, or gcc and clang have a bug */
712 /* I *currently* lean towards the latter, and inefficiently implement */
713 /* all three of ecb's fences as a seq_cst fence */
714 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
715 /* for all __atomic_thread_fence's except seq_cst */
716 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
580 #endif 717 #endif
581#endif 718#endif
582 719
583#ifndef ECB_MEMORY_FENCE 720#ifndef ECB_MEMORY_FENCE
584 #if !ECB_AVOID_PTHREADS 721 #if !ECB_AVOID_PTHREADS
… …
596 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 733 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER;
597 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0) 734 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
598 #endif 735 #endif
599#endif 736#endif
600 737
601#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 738#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
602 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 739 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
603#endif 740#endif
604 741
605#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 742#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
606 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 743 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
607#endif 744#endif
608 745
609/*****************************************************************************/ 746/*****************************************************************************/
610
611#define ECB_C99 (__STDC_VERSION__ >= 199901L)
612 747
613#if __cplusplus 748#if __cplusplus
614 #define ecb_inline static inline 749 #define ecb_inline static inline
615#elif ECB_GCC_VERSION(2,5) 750#elif ECB_GCC_VERSION(2,5)
616 #define ecb_inline static __inline__ 751 #define ecb_inline static __inline__
… …
642 #define ecb_is_constant(expr) __builtin_constant_p (expr) 777 #define ecb_is_constant(expr) __builtin_constant_p (expr)
643 #define ecb_expect(expr,value) __builtin_expect ((expr),(value)) 778 #define ecb_expect(expr,value) __builtin_expect ((expr),(value))
644 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality) 779 #define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
645#else 780#else
646 #define ecb_attribute(attrlist) 781 #define ecb_attribute(attrlist)
782
783 /* possible C11 impl for integral types
784 typedef struct ecb_is_constant_struct ecb_is_constant_struct;
785 #define ecb_is_constant(expr) _Generic ((1 ? (struct ecb_is_constant_struct *)0 : (void *)((expr) - (expr)), ecb_is_constant_struct *: 0, default: 1)) */
786
647 #define ecb_is_constant(expr) 0 787 #define ecb_is_constant(expr) 0
648 #define ecb_expect(expr,value) (expr) 788 #define ecb_expect(expr,value) (expr)
649 #define ecb_prefetch(addr,rw,locality) 789 #define ecb_prefetch(addr,rw,locality)
650#endif 790#endif
651 791
… …
655#elif ECB_GCC_VERSION(3,0) 795#elif ECB_GCC_VERSION(3,0)
656 #define ecb_decltype(x) __typeof(x) 796 #define ecb_decltype(x) __typeof(x)
657#endif 797#endif
658 798
659#define ecb_noinline ecb_attribute ((__noinline__)) 799#define ecb_noinline ecb_attribute ((__noinline__))
660#define ecb_noreturn ecb_attribute ((__noreturn__))
661#define ecb_unused ecb_attribute ((__unused__)) 800#define ecb_unused ecb_attribute ((__unused__))
662#define ecb_const ecb_attribute ((__const__)) 801#define ecb_const ecb_attribute ((__const__))
663#define ecb_pure ecb_attribute ((__pure__)) 802#define ecb_pure ecb_attribute ((__pure__))
803
804#if ECB_C11
805 #define ecb_noreturn _Noreturn
806#else
807 #define ecb_noreturn ecb_attribute ((__noreturn__))
808#endif
664 809
665#if ECB_GCC_VERSION(4,3) 810#if ECB_GCC_VERSION(4,3)
666 #define ecb_artificial ecb_attribute ((__artificial__)) 811 #define ecb_artificial ecb_attribute ((__artificial__))
667 #define ecb_hot ecb_attribute ((__hot__)) 812 #define ecb_hot ecb_attribute ((__hot__))
668 #define ecb_cold ecb_attribute ((__cold__)) 813 #define ecb_cold ecb_attribute ((__cold__))
… …
759 904
760 return r + ecb_ld32 (x); 905 return r + ecb_ld32 (x);
761 } 906 }
762#endif 907#endif
763 908
909ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
910ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
911ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
912ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
913
914ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
915ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
916{
917 return ( (x * 0x0802U & 0x22110U)
918 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
919}
920
921ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const;
922ecb_function_ uint16_t ecb_bitrev16 (uint16_t x)
923{
924 x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1);
925 x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2);
926 x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4);
927 x = ( x >> 8 ) | ( x << 8);
928
929 return x;
930}
931
932ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const;
933ecb_function_ uint32_t ecb_bitrev32 (uint32_t x)
934{
935 x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1);
936 x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2);
937 x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4);
938 x = ((x >> 8) & 0x00ff00ff) | ((x & 0x00ff00ff) << 8);
939 x = ( x >> 16 ) | ( x << 16);
940
941 return x;
942}
943
764/* popcount64 is only available on 64 bit cpus as gcc builtin */ 944/* popcount64 is only available on 64 bit cpus as gcc builtin */
765/* so for this version we are lazy */ 945/* so for this version we are lazy */
766ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const; 946ecb_function_ int ecb_popcount64 (uint64_t x) ecb_const;
767ecb_function_ int 947ecb_function_ int
768ecb_popcount64 (uint64_t x) 948ecb_popcount64 (uint64_t x)
… …
817 997
818#if ECB_GCC_VERSION(4,5) 998#if ECB_GCC_VERSION(4,5)
819 #define ecb_unreachable() __builtin_unreachable () 999 #define ecb_unreachable() __builtin_unreachable ()
820#else 1000#else
821 /* this seems to work fine, but gcc always emits a warning for it :/ */ 1001 /* this seems to work fine, but gcc always emits a warning for it :/ */
822 ecb_function_ void ecb_unreachable (void) ecb_noreturn; 1002 ecb_inline void ecb_unreachable (void) ecb_noreturn;
823 ecb_function_ void ecb_unreachable (void) { } 1003 ecb_inline void ecb_unreachable (void) { }
824#endif 1004#endif
825 1005
826/* try to tell the compiler that some condition is definitely true */ 1006/* try to tell the compiler that some condition is definitely true */
827#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 1007#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
828 1008
829ecb_function_ unsigned char ecb_byteorder_helper (void) ecb_const; 1009ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
830ecb_function_ unsigned char 1010ecb_inline unsigned char
831ecb_byteorder_helper (void) 1011ecb_byteorder_helper (void)
832{ 1012{
833 const uint32_t u = 0x11223344; 1013 /* the union code still generates code under pressure in gcc, */
834 return *(unsigned char *)&u; 1014 /* but less than using pointers, and always seems to */
1015 /* successfully return a constant. */
1016 /* the reason why we have this horrible preprocessor mess */
1017 /* is to avoid it in all cases, at least on common architectures */
1018 /* or when using a recent enough gcc version (>= 4.6) */
1019#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1020 return 0x44;
1021#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1022 return 0x44;
1023#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1024 return 0x11;
1025#else
1026 union
1027 {
1028 uint32_t i;
1029 uint8_t c;
1030 } u = { 0x11223344 };
1031 return u.c;
1032#endif
835} 1033}
836 1034
837ecb_function_ ecb_bool ecb_big_endian (void) ecb_const; 1035ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
838ecb_function_ ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1036ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
839ecb_function_ ecb_bool ecb_little_endian (void) ecb_const; 1037ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
840ecb_function_ ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1038ecb_inline ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; }
841 1039
842#if ECB_GCC_VERSION(3,0) || ECB_C99 1040#if ECB_GCC_VERSION(3,0) || ECB_C99
843 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1041 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
844#else 1042#else
845 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1043 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1044#endif
1045
1046#if __cplusplus
1047 template<typename T>
1048 static inline T ecb_div_rd (T val, T div)
1049 {
1050 return val < 0 ? - ((-val + div - 1) / div) : (val ) / div;
1051 }
1052 template<typename T>
1053 static inline T ecb_div_ru (T val, T div)
1054 {
1055 return val < 0 ? - ((-val ) / div) : (val + div - 1) / div;
1056 }
1057#else
1058 #define ecb_div_rd(val,div) ((val) < 0 ? - ((-(val) + (div) - 1) / (div)) : ((val) ) / (div))
1059 #define ecb_div_ru(val,div) ((val) < 0 ? - ((-(val) ) / (div)) : ((val) + (div) - 1) / (div))
846#endif 1060#endif
847 1061
848#if ecb_cplusplus_does_not_suck 1062#if ecb_cplusplus_does_not_suck
849 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */ 1063 /* does not work for local types (http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2008/n2657.htm) */
850 template<typename T, int N> 1064 template<typename T, int N>
… …
854 } 1068 }
855#else 1069#else
856 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1070 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
857#endif 1071#endif
858 1072
1073/*******************************************************************************/
1074/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1075
1076/* basically, everything uses "ieee pure-endian" floating point numbers */
1077/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1078#if 0 \
1079 || __i386 || __i386__ \
1080 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1081 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1082 || defined __s390__ || defined __s390x__ \
1083 || defined __mips__ \
1084 || defined __alpha__ \
1085 || defined __hppa__ \
1086 || defined __ia64__ \
1087 || defined __m68k__ \
1088 || defined __m88k__ \
1089 || defined __sh__ \
1090 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \
1091 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1092 | defined __aarch64__
1093 #define ECB_STDFP 1
1094 #include <string.h> /* for memcpy */
1095#else
1096 #define ECB_STDFP 0
1097#endif
1098
1099#ifndef ECB_NO_LIBM
1100
1101 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1102
1103 /* only the oldest of old doesn't have this one. solaris. */
1104 #ifdef INFINITY
1105 #define ECB_INFINITY INFINITY
1106 #else
1107 #define ECB_INFINITY HUGE_VAL
1108 #endif
1109
1110 #ifdef NAN
1111 #define ECB_NAN NAN
1112 #else
1113 #define ECB_NAN ECB_INFINITY
1114 #endif
1115
1116 /* converts an ieee half/binary16 to a float */
1117 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1118 ecb_function_ float
1119 ecb_binary16_to_float (uint16_t x)
1120 {
1121 int e = (x >> 10) & 0x1f;
1122 int m = x & 0x3ff;
1123 float r;
1124
1125 if (!e ) r = ldexpf (m , -24);
1126 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1127 else if (m ) r = ECB_NAN;
1128 else r = ECB_INFINITY;
1129
1130 return x & 0x8000 ? -r : r;
1131 }
1132
1133 /* convert a float to ieee single/binary32 */
1134 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1135 ecb_function_ uint32_t
1136 ecb_float_to_binary32 (float x)
1137 {
1138 uint32_t r;
1139
1140 #if ECB_STDFP
1141 memcpy (&r, &x, 4);
1142 #else
1143 /* slow emulation, works for anything but -0 */
1144 uint32_t m;
1145 int e;
1146
1147 if (x == 0e0f ) return 0x00000000U;
1148 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1149 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1150 if (x != x ) return 0x7fbfffffU;
1151
1152 m = frexpf (x, &e) * 0x1000000U;
1153
1154 r = m & 0x80000000U;
1155
1156 if (r)
1157 m = -m;
1158
1159 if (e <= -126)
1160 {
1161 m &= 0xffffffU;
1162 m >>= (-125 - e);
1163 e = -126;
1164 }
1165
1166 r |= (e + 126) << 23;
1167 r |= m & 0x7fffffU;
1168 #endif
1169
1170 return r;
1171 }
1172
1173 /* converts an ieee single/binary32 to a float */
1174 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1175 ecb_function_ float
1176 ecb_binary32_to_float (uint32_t x)
1177 {
1178 float r;
1179
1180 #if ECB_STDFP
1181 memcpy (&r, &x, 4);
1182 #else
1183 /* emulation, only works for normals and subnormals and +0 */
1184 int neg = x >> 31;
1185 int e = (x >> 23) & 0xffU;
1186
1187 x &= 0x7fffffU;
1188
1189 if (e)
1190 x |= 0x800000U;
1191 else
1192 e = 1;
1193
1194 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1195 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1196
1197 r = neg ? -r : r;
1198 #endif
1199
1200 return r;
1201 }
1202
1203 /* convert a double to ieee double/binary64 */
1204 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1205 ecb_function_ uint64_t
1206 ecb_double_to_binary64 (double x)
1207 {
1208 uint64_t r;
1209
1210 #if ECB_STDFP
1211 memcpy (&r, &x, 8);
1212 #else
1213 /* slow emulation, works for anything but -0 */
1214 uint64_t m;
1215 int e;
1216
1217 if (x == 0e0 ) return 0x0000000000000000U;
1218 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1219 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1220 if (x != x ) return 0X7ff7ffffffffffffU;
1221
1222 m = frexp (x, &e) * 0x20000000000000U;
1223
1224 r = m & 0x8000000000000000;;
1225
1226 if (r)
1227 m = -m;
1228
1229 if (e <= -1022)
1230 {
1231 m &= 0x1fffffffffffffU;
1232 m >>= (-1021 - e);
1233 e = -1022;
1234 }
1235
1236 r |= ((uint64_t)(e + 1022)) << 52;
1237 r |= m & 0xfffffffffffffU;
1238 #endif
1239
1240 return r;
1241 }
1242
1243 /* converts an ieee double/binary64 to a double */
1244 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1245 ecb_function_ double
1246 ecb_binary64_to_double (uint64_t x)
1247 {
1248 double r;
1249
1250 #if ECB_STDFP
1251 memcpy (&r, &x, 8);
1252 #else
1253 /* emulation, only works for normals and subnormals and +0 */
1254 int neg = x >> 63;
1255 int e = (x >> 52) & 0x7ffU;
1256
1257 x &= 0xfffffffffffffU;
1258
1259 if (e)
1260 x |= 0x10000000000000U;
1261 else
1262 e = 1;
1263
1264 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1265 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1266
1267 r = neg ? -r : r;
1268 #endif
1269
1270 return r;
1271 }
1272
1273#endif
1274
859#endif 1275#endif
860 1276
861/* ECB.H END */ 1277/* ECB.H END */
862 1278
863#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1279#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
864/* if your architecture doesn't need memory fences, e.g. because it is 1280/* if your architecture doesn't need memory fences, e.g. because it is
865 * single-cpu/core, or if you use libev in a project that doesn't use libev 1281 * single-cpu/core, or if you use libev in a project that doesn't use libev
866 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1282 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling
867 * libev, in which casess the memory fences become nops. 1283 * libev, in which cases the memory fences become nops.
868 * alternatively, you can remove this #error and link against libpthread, 1284 * alternatively, you can remove this #error and link against libpthread,
869 * which will then provide the memory fences. 1285 * which will then provide the memory fences.
870 */ 1286 */
871# error "memory fences not defined for your architecture, please report" 1287# error "memory fences not defined for your architecture, please report"
872#endif 1288#endif
… …
1029{ 1445{
1030 write (STDERR_FILENO, msg, strlen (msg)); 1446 write (STDERR_FILENO, msg, strlen (msg));
1031} 1447}
1032#endif 1448#endif
1033 1449
1034static void (*syserr_cb)(const char *msg); 1450static void (*syserr_cb)(const char *msg) EV_THROW;
1035 1451
1036void ecb_cold 1452void ecb_cold
1037ev_set_syserr_cb (void (*cb)(const char *msg)) 1453ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1038{ 1454{
1039 syserr_cb = cb; 1455 syserr_cb = cb;
1040} 1456}
1041 1457
1042static void noinline ecb_cold 1458static void noinline ecb_cold
… …
1060 abort (); 1476 abort ();
1061 } 1477 }
1062} 1478}
1063 1479
1064static void * 1480static void *
1065ev_realloc_emul (void *ptr, long size) 1481ev_realloc_emul (void *ptr, long size) EV_THROW
1066{ 1482{
1067#if __GLIBC__
1068 return realloc (ptr, size);
1069#else
1070 /* some systems, notably openbsd and darwin, fail to properly 1483 /* some systems, notably openbsd and darwin, fail to properly
1071 * implement realloc (x, 0) (as required by both ansi c-89 and 1484 * implement realloc (x, 0) (as required by both ansi c-89 and
1072 * the single unix specification, so work around them here. 1485 * the single unix specification, so work around them here.
1486 * recently, also (at least) fedora and debian started breaking it,
1487 * despite documenting it otherwise.
1073 */ 1488 */
1074 1489
1075 if (size) 1490 if (size)
1076 return realloc (ptr, size); 1491 return realloc (ptr, size);
1077 1492
1078 free (ptr); 1493 free (ptr);
1079 return 0; 1494 return 0;
1080#endif
1081} 1495}
1082 1496
1083static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1497static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1084 1498
1085void ecb_cold 1499void ecb_cold
1086ev_set_allocator (void *(*cb)(void *ptr, long size)) 1500ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1087{ 1501{
1088 alloc = cb; 1502 alloc = cb;
1089} 1503}
1090 1504
1091inline_speed void * 1505inline_speed void *
… …
1179 #undef VAR 1593 #undef VAR
1180 }; 1594 };
1181 #include "ev_wrap.h" 1595 #include "ev_wrap.h"
1182 1596
1183 static struct ev_loop default_loop_struct; 1597 static struct ev_loop default_loop_struct;
1184 struct ev_loop *ev_default_loop_ptr; 1598 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1185 1599
1186#else 1600#else
1187 1601
1188 ev_tstamp ev_rt_now; 1602 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */
1189 #define VAR(name,decl) static decl; 1603 #define VAR(name,decl) static decl;
1190 #include "ev_vars.h" 1604 #include "ev_vars.h"
1191 #undef VAR 1605 #undef VAR
1192 1606
1193 static int ev_default_loop_ptr; 1607 static int ev_default_loop_ptr;
… …
1208 1622
1209/*****************************************************************************/ 1623/*****************************************************************************/
1210 1624
1211#ifndef EV_HAVE_EV_TIME 1625#ifndef EV_HAVE_EV_TIME
1212ev_tstamp 1626ev_tstamp
1213ev_time (void) 1627ev_time (void) EV_THROW
1214{ 1628{
1215#if EV_USE_REALTIME 1629#if EV_USE_REALTIME
1216 if (expect_true (have_realtime)) 1630 if (expect_true (have_realtime))
1217 { 1631 {
1218 struct timespec ts; 1632 struct timespec ts;
… …
1242 return ev_time (); 1656 return ev_time ();
1243} 1657}
1244 1658
1245#if EV_MULTIPLICITY 1659#if EV_MULTIPLICITY
1246ev_tstamp 1660ev_tstamp
1247ev_now (EV_P) 1661ev_now (EV_P) EV_THROW
1248{ 1662{
1249 return ev_rt_now; 1663 return ev_rt_now;
1250} 1664}
1251#endif 1665#endif
1252 1666
1253void 1667void
1254ev_sleep (ev_tstamp delay) 1668ev_sleep (ev_tstamp delay) EV_THROW
1255{ 1669{
1256 if (delay > 0.) 1670 if (delay > 0.)
1257 { 1671 {
1258#if EV_USE_NANOSLEEP 1672#if EV_USE_NANOSLEEP
1259 struct timespec ts; 1673 struct timespec ts;
1260 1674
1261 EV_TS_SET (ts, delay); 1675 EV_TS_SET (ts, delay);
1262 nanosleep (&ts, 0); 1676 nanosleep (&ts, 0);
1263#elif defined(_WIN32) 1677#elif defined _WIN32
1264 Sleep ((unsigned long)(delay * 1e3)); 1678 Sleep ((unsigned long)(delay * 1e3));
1265#else 1679#else
1266 struct timeval tv; 1680 struct timeval tv;
1267 1681
1268 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1682 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1287 1701
1288 do 1702 do
1289 ncur <<= 1; 1703 ncur <<= 1;
1290 while (cnt > ncur); 1704 while (cnt > ncur);
1291 1705
1292 /* if size is large, round to MALLOC_ROUND - 4 * longs to accomodate malloc overhead */ 1706 /* if size is large, round to MALLOC_ROUND - 4 * longs to accommodate malloc overhead */
1293 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4) 1707 if (elem * ncur > MALLOC_ROUND - sizeof (void *) * 4)
1294 { 1708 {
1295 ncur *= elem; 1709 ncur *= elem;
1296 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1); 1710 ncur = (ncur + elem + (MALLOC_ROUND - 1) + sizeof (void *) * 4) & ~(MALLOC_ROUND - 1);
1297 ncur = ncur - sizeof (void *) * 4; 1711 ncur = ncur - sizeof (void *) * 4;
… …
1340pendingcb (EV_P_ ev_prepare *w, int revents) 1754pendingcb (EV_P_ ev_prepare *w, int revents)
1341{ 1755{
1342} 1756}
1343 1757
1344void noinline 1758void noinline
1345ev_feed_event (EV_P_ void *w, int revents) 1759ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1346{ 1760{
1347 W w_ = (W)w; 1761 W w_ = (W)w;
1348 int pri = ABSPRI (w_); 1762 int pri = ABSPRI (w_);
1349 1763
1350 if (expect_false (w_->pending)) 1764 if (expect_false (w_->pending))
… …
1354 w_->pending = ++pendingcnt [pri]; 1768 w_->pending = ++pendingcnt [pri];
1355 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1769 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1356 pendings [pri][w_->pending - 1].w = w_; 1770 pendings [pri][w_->pending - 1].w = w_;
1357 pendings [pri][w_->pending - 1].events = revents; 1771 pendings [pri][w_->pending - 1].events = revents;
1358 } 1772 }
1773
1774 pendingpri = NUMPRI - 1;
1359} 1775}
1360 1776
1361inline_speed void 1777inline_speed void
1362feed_reverse (EV_P_ W w) 1778feed_reverse (EV_P_ W w)
1363{ 1779{
… …
1409 if (expect_true (!anfd->reify)) 1825 if (expect_true (!anfd->reify))
1410 fd_event_nocheck (EV_A_ fd, revents); 1826 fd_event_nocheck (EV_A_ fd, revents);
1411} 1827}
1412 1828
1413void 1829void
1414ev_feed_fd_event (EV_P_ int fd, int revents) 1830ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1415{ 1831{
1416 if (fd >= 0 && fd < anfdmax) 1832 if (fd >= 0 && fd < anfdmax)
1417 fd_event_nocheck (EV_A_ fd, revents); 1833 fd_event_nocheck (EV_A_ fd, revents);
1418} 1834}
1419 1835
… …
1738static void noinline ecb_cold 2154static void noinline ecb_cold
1739evpipe_init (EV_P) 2155evpipe_init (EV_P)
1740{ 2156{
1741 if (!ev_is_active (&pipe_w)) 2157 if (!ev_is_active (&pipe_w))
1742 { 2158 {
2159 int fds [2];
2160
1743# if EV_USE_EVENTFD 2161# if EV_USE_EVENTFD
2162 fds [0] = -1;
1744 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2163 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1745 if (evfd < 0 && errno == EINVAL) 2164 if (fds [1] < 0 && errno == EINVAL)
1746 evfd = eventfd (0, 0); 2165 fds [1] = eventfd (0, 0);
1747 2166
1748 if (evfd >= 0) 2167 if (fds [1] < 0)
2168# endif
1749 { 2169 {
2170 while (pipe (fds))
2171 ev_syserr ("(libev) error creating signal/async pipe");
2172
2173 fd_intern (fds [0]);
2174 }
2175
1750 evpipe [0] = -1; 2176 evpipe [0] = fds [0];
1751 fd_intern (evfd); /* doing it twice doesn't hurt */ 2177
1752 ev_io_set (&pipe_w, evfd, EV_READ); 2178 if (evpipe [1] < 0)
2179 evpipe [1] = fds [1]; /* first call, set write fd */
2180 else
2181 {
2182 /* on subsequent calls, do not change evpipe [1] */
2183 /* so that evpipe_write can always rely on its value. */
2184 /* this branch does not do anything sensible on windows, */
2185 /* so must not be executed on windows */
2186
2187 dup2 (fds [1], evpipe [1]);
2188 close (fds [1]);
2189 }
2190
2191 fd_intern (evpipe [1]);
2192
2193 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2194 ev_io_start (EV_A_ &pipe_w);
2195 ev_unref (EV_A); /* watcher should not keep loop alive */
2196 }
2197}
2198
2199inline_speed void
2200evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2201{
2202 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2203
2204 if (expect_true (*flag))
2205 return;
2206
2207 *flag = 1;
2208 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2209
2210 pipe_write_skipped = 1;
2211
2212 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2213
2214 if (pipe_write_wanted)
2215 {
2216 int old_errno;
2217
2218 pipe_write_skipped = 0;
2219 ECB_MEMORY_FENCE_RELEASE;
2220
2221 old_errno = errno; /* save errno because write will clobber it */
2222
2223#if EV_USE_EVENTFD
2224 if (evpipe [0] < 0)
2225 {
2226 uint64_t counter = 1;
2227 write (evpipe [1], &counter, sizeof (uint64_t));
1753 } 2228 }
1754 else 2229 else
1755# endif 2230#endif
1756 { 2231 {
1757 while (pipe (evpipe)) 2232#ifdef _WIN32
1758 ev_syserr ("(libev) error creating signal/async pipe"); 2233 WSABUF buf;
1759 2234 DWORD sent;
1760 fd_intern (evpipe [0]); 2235 buf.buf = &buf;
1761 fd_intern (evpipe [1]); 2236 buf.len = 1;
1762 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2237 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1763 } 2238#else
1764
1765 ev_io_start (EV_A_ &pipe_w);
1766 ev_unref (EV_A); /* watcher should not keep loop alive */
1767 }
1768}
1769
1770inline_speed void
1771evpipe_write (EV_P_ EV_ATOMIC_T *flag)
1772{
1773 if (expect_true (*flag))
1774 return;
1775
1776 *flag = 1;
1777
1778 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
1779
1780 pipe_write_skipped = 1;
1781
1782 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
1783
1784 if (pipe_write_wanted)
1785 {
1786 int old_errno;
1787
1788 pipe_write_skipped = 0; /* just an optimisation, no fence needed */
1789
1790 old_errno = errno; /* save errno because write will clobber it */
1791
1792#if EV_USE_EVENTFD
1793 if (evfd >= 0)
1794 {
1795 uint64_t counter = 1;
1796 write (evfd, &counter, sizeof (uint64_t));
1797 }
1798 else
1799#endif
1800 {
1801 /* win32 people keep sending patches that change this write() to send() */
1802 /* and then run away. but send() is wrong, it wants a socket handle on win32 */
1803 /* so when you think this write should be a send instead, please find out */
1804 /* where your send() is from - it's definitely not the microsoft send, and */
1805 /* tell me. thank you. */
1806 write (evpipe [1], &(evpipe [1]), 1); 2239 write (evpipe [1], &(evpipe [1]), 1);
2240#endif
1807 } 2241 }
1808 2242
1809 errno = old_errno; 2243 errno = old_errno;
1810 } 2244 }
1811} 2245}
… …
1818 int i; 2252 int i;
1819 2253
1820 if (revents & EV_READ) 2254 if (revents & EV_READ)
1821 { 2255 {
1822#if EV_USE_EVENTFD 2256#if EV_USE_EVENTFD
1823 if (evfd >= 0) 2257 if (evpipe [0] < 0)
1824 { 2258 {
1825 uint64_t counter; 2259 uint64_t counter;
1826 read (evfd, &counter, sizeof (uint64_t)); 2260 read (evpipe [1], &counter, sizeof (uint64_t));
1827 } 2261 }
1828 else 2262 else
1829#endif 2263#endif
1830 { 2264 {
1831 char dummy; 2265 char dummy[4];
1832 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2266#ifdef _WIN32
2267 WSABUF buf;
2268 DWORD recvd;
2269 DWORD flags = 0;
2270 buf.buf = dummy;
2271 buf.len = sizeof (dummy);
2272 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2273#else
1833 read (evpipe [0], &dummy, 1); 2274 read (evpipe [0], &dummy, sizeof (dummy));
2275#endif
1834 } 2276 }
1835 } 2277 }
1836 2278
1837 pipe_write_skipped = 0; 2279 pipe_write_skipped = 0;
2280
2281 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1838 2282
1839#if EV_SIGNAL_ENABLE 2283#if EV_SIGNAL_ENABLE
1840 if (sig_pending) 2284 if (sig_pending)
1841 { 2285 {
1842 sig_pending = 0; 2286 sig_pending = 0;
2287
2288 ECB_MEMORY_FENCE;
1843 2289
1844 for (i = EV_NSIG - 1; i--; ) 2290 for (i = EV_NSIG - 1; i--; )
1845 if (expect_false (signals [i].pending)) 2291 if (expect_false (signals [i].pending))
1846 ev_feed_signal_event (EV_A_ i + 1); 2292 ev_feed_signal_event (EV_A_ i + 1);
1847 } 2293 }
… …
1849 2295
1850#if EV_ASYNC_ENABLE 2296#if EV_ASYNC_ENABLE
1851 if (async_pending) 2297 if (async_pending)
1852 { 2298 {
1853 async_pending = 0; 2299 async_pending = 0;
2300
2301 ECB_MEMORY_FENCE;
1854 2302
1855 for (i = asynccnt; i--; ) 2303 for (i = asynccnt; i--; )
1856 if (asyncs [i]->sent) 2304 if (asyncs [i]->sent)
1857 { 2305 {
1858 asyncs [i]->sent = 0; 2306 asyncs [i]->sent = 0;
2307 ECB_MEMORY_FENCE_RELEASE;
1859 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2308 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1860 } 2309 }
1861 } 2310 }
1862#endif 2311#endif
1863} 2312}
1864 2313
1865/*****************************************************************************/ 2314/*****************************************************************************/
1866 2315
1867void 2316void
1868ev_feed_signal (int signum) 2317ev_feed_signal (int signum) EV_THROW
1869{ 2318{
1870#if EV_MULTIPLICITY 2319#if EV_MULTIPLICITY
2320 EV_P;
2321 ECB_MEMORY_FENCE_ACQUIRE;
1871 EV_P = signals [signum - 1].loop; 2322 EV_A = signals [signum - 1].loop;
1872 2323
1873 if (!EV_A) 2324 if (!EV_A)
1874 return; 2325 return;
1875#endif 2326#endif
1876 2327
1877 if (!ev_active (&pipe_w))
1878 return;
1879
1880 signals [signum - 1].pending = 1; 2328 signals [signum - 1].pending = 1;
1881 evpipe_write (EV_A_ &sig_pending); 2329 evpipe_write (EV_A_ &sig_pending);
1882} 2330}
1883 2331
1884static void 2332static void
… …
1890 2338
1891 ev_feed_signal (signum); 2339 ev_feed_signal (signum);
1892} 2340}
1893 2341
1894void noinline 2342void noinline
1895ev_feed_signal_event (EV_P_ int signum) 2343ev_feed_signal_event (EV_P_ int signum) EV_THROW
1896{ 2344{
1897 WL w; 2345 WL w;
1898 2346
1899 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2347 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1900 return; 2348 return;
1901 2349
1902 --signum; 2350 --signum;
1903 2351
1904#if EV_MULTIPLICITY 2352#if EV_MULTIPLICITY
… …
1908 if (expect_false (signals [signum].loop != EV_A)) 2356 if (expect_false (signals [signum].loop != EV_A))
1909 return; 2357 return;
1910#endif 2358#endif
1911 2359
1912 signals [signum].pending = 0; 2360 signals [signum].pending = 0;
2361 ECB_MEMORY_FENCE_RELEASE;
1913 2362
1914 for (w = signals [signum].head; w; w = w->next) 2363 for (w = signals [signum].head; w; w = w->next)
1915 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2364 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1916} 2365}
1917 2366
… …
2016#if EV_USE_SELECT 2465#if EV_USE_SELECT
2017# include "ev_select.c" 2466# include "ev_select.c"
2018#endif 2467#endif
2019 2468
2020int ecb_cold 2469int ecb_cold
2021ev_version_major (void) 2470ev_version_major (void) EV_THROW
2022{ 2471{
2023 return EV_VERSION_MAJOR; 2472 return EV_VERSION_MAJOR;
2024} 2473}
2025 2474
2026int ecb_cold 2475int ecb_cold
2027ev_version_minor (void) 2476ev_version_minor (void) EV_THROW
2028{ 2477{
2029 return EV_VERSION_MINOR; 2478 return EV_VERSION_MINOR;
2030} 2479}
2031 2480
2032/* return true if we are running with elevated privileges and should ignore env variables */ 2481/* return true if we are running with elevated privileges and should ignore env variables */
… …
2040 || getgid () != getegid (); 2489 || getgid () != getegid ();
2041#endif 2490#endif
2042} 2491}
2043 2492
2044unsigned int ecb_cold 2493unsigned int ecb_cold
2045ev_supported_backends (void) 2494ev_supported_backends (void) EV_THROW
2046{ 2495{
2047 unsigned int flags = 0; 2496 unsigned int flags = 0;
2048 2497
2049 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2498 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2050 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2499 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2054 2503
2055 return flags; 2504 return flags;
2056} 2505}
2057 2506
2058unsigned int ecb_cold 2507unsigned int ecb_cold
2059ev_recommended_backends (void) 2508ev_recommended_backends (void) EV_THROW
2060{ 2509{
2061 unsigned int flags = ev_supported_backends (); 2510 unsigned int flags = ev_supported_backends ();
2062 2511
2063#ifndef __NetBSD__ 2512#ifndef __NetBSD__
2064 /* kqueue is borked on everything but netbsd apparently */ 2513 /* kqueue is borked on everything but netbsd apparently */
… …
2076 2525
2077 return flags; 2526 return flags;
2078} 2527}
2079 2528
2080unsigned int ecb_cold 2529unsigned int ecb_cold
2081ev_embeddable_backends (void) 2530ev_embeddable_backends (void) EV_THROW
2082{ 2531{
2083 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2532 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2084 2533
2085 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2534 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2086 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 2535 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2088 2537
2089 return flags; 2538 return flags;
2090} 2539}
2091 2540
2092unsigned int 2541unsigned int
2093ev_backend (EV_P) 2542ev_backend (EV_P) EV_THROW
2094{ 2543{
2095 return backend; 2544 return backend;
2096} 2545}
2097 2546
2098#if EV_FEATURE_API 2547#if EV_FEATURE_API
2099unsigned int 2548unsigned int
2100ev_iteration (EV_P) 2549ev_iteration (EV_P) EV_THROW
2101{ 2550{
2102 return loop_count; 2551 return loop_count;
2103} 2552}
2104 2553
2105unsigned int 2554unsigned int
2106ev_depth (EV_P) 2555ev_depth (EV_P) EV_THROW
2107{ 2556{
2108 return loop_depth; 2557 return loop_depth;
2109} 2558}
2110 2559
2111void 2560void
2112ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2561ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2113{ 2562{
2114 io_blocktime = interval; 2563 io_blocktime = interval;
2115} 2564}
2116 2565
2117void 2566void
2118ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2567ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2119{ 2568{
2120 timeout_blocktime = interval; 2569 timeout_blocktime = interval;
2121} 2570}
2122 2571
2123void 2572void
2124ev_set_userdata (EV_P_ void *data) 2573ev_set_userdata (EV_P_ void *data) EV_THROW
2125{ 2574{
2126 userdata = data; 2575 userdata = data;
2127} 2576}
2128 2577
2129void * 2578void *
2130ev_userdata (EV_P) 2579ev_userdata (EV_P) EV_THROW
2131{ 2580{
2132 return userdata; 2581 return userdata;
2133} 2582}
2134 2583
2135void 2584void
2136ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2585ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2137{ 2586{
2138 invoke_cb = invoke_pending_cb; 2587 invoke_cb = invoke_pending_cb;
2139} 2588}
2140 2589
2141void 2590void
2142ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2591ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2143{ 2592{
2144 release_cb = release; 2593 release_cb = release;
2145 acquire_cb = acquire; 2594 acquire_cb = acquire;
2146} 2595}
2147#endif 2596#endif
2148 2597
2149/* initialise a loop structure, must be zero-initialised */ 2598/* initialise a loop structure, must be zero-initialised */
2150static void noinline ecb_cold 2599static void noinline ecb_cold
2151loop_init (EV_P_ unsigned int flags) 2600loop_init (EV_P_ unsigned int flags) EV_THROW
2152{ 2601{
2153 if (!backend) 2602 if (!backend)
2154 { 2603 {
2155 origflags = flags; 2604 origflags = flags;
2156 2605
… …
2201#if EV_ASYNC_ENABLE 2650#if EV_ASYNC_ENABLE
2202 async_pending = 0; 2651 async_pending = 0;
2203#endif 2652#endif
2204 pipe_write_skipped = 0; 2653 pipe_write_skipped = 0;
2205 pipe_write_wanted = 0; 2654 pipe_write_wanted = 0;
2655 evpipe [0] = -1;
2656 evpipe [1] = -1;
2206#if EV_USE_INOTIFY 2657#if EV_USE_INOTIFY
2207 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2658 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2208#endif 2659#endif
2209#if EV_USE_SIGNALFD 2660#if EV_USE_SIGNALFD
2210 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2661 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2261 EV_INVOKE_PENDING; 2712 EV_INVOKE_PENDING;
2262 } 2713 }
2263#endif 2714#endif
2264 2715
2265#if EV_CHILD_ENABLE 2716#if EV_CHILD_ENABLE
2266 if (ev_is_active (&childev)) 2717 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2267 { 2718 {
2268 ev_ref (EV_A); /* child watcher */ 2719 ev_ref (EV_A); /* child watcher */
2269 ev_signal_stop (EV_A_ &childev); 2720 ev_signal_stop (EV_A_ &childev);
2270 } 2721 }
2271#endif 2722#endif
… …
2273 if (ev_is_active (&pipe_w)) 2724 if (ev_is_active (&pipe_w))
2274 { 2725 {
2275 /*ev_ref (EV_A);*/ 2726 /*ev_ref (EV_A);*/
2276 /*ev_io_stop (EV_A_ &pipe_w);*/ 2727 /*ev_io_stop (EV_A_ &pipe_w);*/
2277 2728
2278#if EV_USE_EVENTFD
2279 if (evfd >= 0)
2280 close (evfd);
2281#endif
2282
2283 if (evpipe [0] >= 0)
2284 {
2285 EV_WIN32_CLOSE_FD (evpipe [0]); 2729 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2286 EV_WIN32_CLOSE_FD (evpipe [1]); 2730 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2287 }
2288 } 2731 }
2289 2732
2290#if EV_USE_SIGNALFD 2733#if EV_USE_SIGNALFD
2291 if (ev_is_active (&sigfd_w)) 2734 if (ev_is_active (&sigfd_w))
2292 close (sigfd); 2735 close (sigfd);
… …
2378#endif 2821#endif
2379#if EV_USE_INOTIFY 2822#if EV_USE_INOTIFY
2380 infy_fork (EV_A); 2823 infy_fork (EV_A);
2381#endif 2824#endif
2382 2825
2826#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2383 if (ev_is_active (&pipe_w)) 2827 if (ev_is_active (&pipe_w))
2384 { 2828 {
2385 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2829 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2386 2830
2387 ev_ref (EV_A); 2831 ev_ref (EV_A);
2388 ev_io_stop (EV_A_ &pipe_w); 2832 ev_io_stop (EV_A_ &pipe_w);
2389 2833
2390#if EV_USE_EVENTFD
2391 if (evfd >= 0)
2392 close (evfd);
2393#endif
2394
2395 if (evpipe [0] >= 0) 2834 if (evpipe [0] >= 0)
2396 {
2397 EV_WIN32_CLOSE_FD (evpipe [0]); 2835 EV_WIN32_CLOSE_FD (evpipe [0]);
2398 EV_WIN32_CLOSE_FD (evpipe [1]);
2399 }
2400 2836
2401#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2402 evpipe_init (EV_A); 2837 evpipe_init (EV_A);
2403 /* now iterate over everything, in case we missed something */ 2838 /* iterate over everything, in case we missed something before */
2404 pipecb (EV_A_ &pipe_w, EV_READ); 2839 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2405#endif
2406 } 2840 }
2841#endif
2407 2842
2408 postfork = 0; 2843 postfork = 0;
2409} 2844}
2410 2845
2411#if EV_MULTIPLICITY 2846#if EV_MULTIPLICITY
2412 2847
2413struct ev_loop * ecb_cold 2848struct ev_loop * ecb_cold
2414ev_loop_new (unsigned int flags) 2849ev_loop_new (unsigned int flags) EV_THROW
2415{ 2850{
2416 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2851 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2417 2852
2418 memset (EV_A, 0, sizeof (struct ev_loop)); 2853 memset (EV_A, 0, sizeof (struct ev_loop));
2419 loop_init (EV_A_ flags); 2854 loop_init (EV_A_ flags);
… …
2463} 2898}
2464#endif 2899#endif
2465 2900
2466#if EV_FEATURE_API 2901#if EV_FEATURE_API
2467void ecb_cold 2902void ecb_cold
2468ev_verify (EV_P) 2903ev_verify (EV_P) EV_THROW
2469{ 2904{
2470#if EV_VERIFY 2905#if EV_VERIFY
2471 int i; 2906 int i;
2472 WL w; 2907 WL w, w2;
2473 2908
2474 assert (activecnt >= -1); 2909 assert (activecnt >= -1);
2475 2910
2476 assert (fdchangemax >= fdchangecnt); 2911 assert (fdchangemax >= fdchangecnt);
2477 for (i = 0; i < fdchangecnt; ++i) 2912 for (i = 0; i < fdchangecnt; ++i)
2478 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2913 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2479 2914
2480 assert (anfdmax >= 0); 2915 assert (anfdmax >= 0);
2481 for (i = 0; i < anfdmax; ++i) 2916 for (i = 0; i < anfdmax; ++i)
2917 {
2918 int j = 0;
2919
2482 for (w = anfds [i].head; w; w = w->next) 2920 for (w = w2 = anfds [i].head; w; w = w->next)
2483 { 2921 {
2484 verify_watcher (EV_A_ (W)w); 2922 verify_watcher (EV_A_ (W)w);
2923
2924 if (j++ & 1)
2925 {
2926 assert (("libev: io watcher list contains a loop", w != w2));
2927 w2 = w2->next;
2928 }
2929
2485 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2930 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1));
2486 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i)); 2931 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2487 } 2932 }
2933 }
2488 2934
2489 assert (timermax >= timercnt); 2935 assert (timermax >= timercnt);
2490 verify_heap (EV_A_ timers, timercnt); 2936 verify_heap (EV_A_ timers, timercnt);
2491 2937
2492#if EV_PERIODIC_ENABLE 2938#if EV_PERIODIC_ENABLE
… …
2542#if EV_MULTIPLICITY 2988#if EV_MULTIPLICITY
2543struct ev_loop * ecb_cold 2989struct ev_loop * ecb_cold
2544#else 2990#else
2545int 2991int
2546#endif 2992#endif
2547ev_default_loop (unsigned int flags) 2993ev_default_loop (unsigned int flags) EV_THROW
2548{ 2994{
2549 if (!ev_default_loop_ptr) 2995 if (!ev_default_loop_ptr)
2550 { 2996 {
2551#if EV_MULTIPLICITY 2997#if EV_MULTIPLICITY
2552 EV_P = ev_default_loop_ptr = &default_loop_struct; 2998 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2571 3017
2572 return ev_default_loop_ptr; 3018 return ev_default_loop_ptr;
2573} 3019}
2574 3020
2575void 3021void
2576ev_loop_fork (EV_P) 3022ev_loop_fork (EV_P) EV_THROW
2577{ 3023{
2578 postfork = 1; /* must be in line with ev_default_fork */ 3024 postfork = 1;
2579} 3025}
2580 3026
2581/*****************************************************************************/ 3027/*****************************************************************************/
2582 3028
2583void 3029void
… …
2585{ 3031{
2586 EV_CB_INVOKE ((W)w, revents); 3032 EV_CB_INVOKE ((W)w, revents);
2587} 3033}
2588 3034
2589unsigned int 3035unsigned int
2590ev_pending_count (EV_P) 3036ev_pending_count (EV_P) EV_THROW
2591{ 3037{
2592 int pri; 3038 int pri;
2593 unsigned int count = 0; 3039 unsigned int count = 0;
2594 3040
2595 for (pri = NUMPRI; pri--; ) 3041 for (pri = NUMPRI; pri--; )
… …
2599} 3045}
2600 3046
2601void noinline 3047void noinline
2602ev_invoke_pending (EV_P) 3048ev_invoke_pending (EV_P)
2603{ 3049{
2604 int pri; 3050 pendingpri = NUMPRI;
2605 3051
2606 for (pri = NUMPRI; pri--; ) 3052 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3053 {
3054 --pendingpri;
3055
2607 while (pendingcnt [pri]) 3056 while (pendingcnt [pendingpri])
2608 { 3057 {
2609 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3058 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2610 3059
2611 p->w->pending = 0; 3060 p->w->pending = 0;
2612 EV_CB_INVOKE (p->w, p->events); 3061 EV_CB_INVOKE (p->w, p->events);
2613 EV_FREQUENT_CHECK; 3062 EV_FREQUENT_CHECK;
2614 } 3063 }
3064 }
2615} 3065}
2616 3066
2617#if EV_IDLE_ENABLE 3067#if EV_IDLE_ENABLE
2618/* make idle watchers pending. this handles the "call-idle */ 3068/* make idle watchers pending. this handles the "call-idle */
2619/* only when higher priorities are idle" logic */ 3069/* only when higher priorities are idle" logic */
… …
2709{ 3159{
2710 EV_FREQUENT_CHECK; 3160 EV_FREQUENT_CHECK;
2711 3161
2712 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3162 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2713 { 3163 {
2714 int feed_count = 0;
2715
2716 do 3164 do
2717 { 3165 {
2718 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3166 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2719 3167
2720 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3168 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2854 3302
2855 mn_now = ev_rt_now; 3303 mn_now = ev_rt_now;
2856 } 3304 }
2857} 3305}
2858 3306
2859void 3307int
2860ev_run (EV_P_ int flags) 3308ev_run (EV_P_ int flags)
2861{ 3309{
2862#if EV_FEATURE_API 3310#if EV_FEATURE_API
2863 ++loop_depth; 3311 ++loop_depth;
2864#endif 3312#endif
… …
2977#endif 3425#endif
2978 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */ 3426 assert ((loop_done = EVBREAK_RECURSE, 1)); /* assert for side effect */
2979 backend_poll (EV_A_ waittime); 3427 backend_poll (EV_A_ waittime);
2980 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3428 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
2981 3429
2982 pipe_write_wanted = 0; /* just an optimsiation, no fence needed */ 3430 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
2983 3431
3432 ECB_MEMORY_FENCE_ACQUIRE;
2984 if (pipe_write_skipped) 3433 if (pipe_write_skipped)
2985 { 3434 {
2986 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3435 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
2987 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3436 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2988 } 3437 }
… …
3021 loop_done = EVBREAK_CANCEL; 3470 loop_done = EVBREAK_CANCEL;
3022 3471
3023#if EV_FEATURE_API 3472#if EV_FEATURE_API
3024 --loop_depth; 3473 --loop_depth;
3025#endif 3474#endif
3475
3476 return activecnt;
3026} 3477}
3027 3478
3028void 3479void
3029ev_break (EV_P_ int how) 3480ev_break (EV_P_ int how) EV_THROW
3030{ 3481{
3031 loop_done = how; 3482 loop_done = how;
3032} 3483}
3033 3484
3034void 3485void
3035ev_ref (EV_P) 3486ev_ref (EV_P) EV_THROW
3036{ 3487{
3037 ++activecnt; 3488 ++activecnt;
3038} 3489}
3039 3490
3040void 3491void
3041ev_unref (EV_P) 3492ev_unref (EV_P) EV_THROW
3042{ 3493{
3043 --activecnt; 3494 --activecnt;
3044} 3495}
3045 3496
3046void 3497void
3047ev_now_update (EV_P) 3498ev_now_update (EV_P) EV_THROW
3048{ 3499{
3049 time_update (EV_A_ 1e100); 3500 time_update (EV_A_ 1e100);
3050} 3501}
3051 3502
3052void 3503void
3053ev_suspend (EV_P) 3504ev_suspend (EV_P) EV_THROW
3054{ 3505{
3055 ev_now_update (EV_A); 3506 ev_now_update (EV_A);
3056} 3507}
3057 3508
3058void 3509void
3059ev_resume (EV_P) 3510ev_resume (EV_P) EV_THROW
3060{ 3511{
3061 ev_tstamp mn_prev = mn_now; 3512 ev_tstamp mn_prev = mn_now;
3062 3513
3063 ev_now_update (EV_A); 3514 ev_now_update (EV_A);
3064 timers_reschedule (EV_A_ mn_now - mn_prev); 3515 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3103 w->pending = 0; 3554 w->pending = 0;
3104 } 3555 }
3105} 3556}
3106 3557
3107int 3558int
3108ev_clear_pending (EV_P_ void *w) 3559ev_clear_pending (EV_P_ void *w) EV_THROW
3109{ 3560{
3110 W w_ = (W)w; 3561 W w_ = (W)w;
3111 int pending = w_->pending; 3562 int pending = w_->pending;
3112 3563
3113 if (expect_true (pending)) 3564 if (expect_true (pending))
… …
3146} 3597}
3147 3598
3148/*****************************************************************************/ 3599/*****************************************************************************/
3149 3600
3150void noinline 3601void noinline
3151ev_io_start (EV_P_ ev_io *w) 3602ev_io_start (EV_P_ ev_io *w) EV_THROW
3152{ 3603{
3153 int fd = w->fd; 3604 int fd = w->fd;
3154 3605
3155 if (expect_false (ev_is_active (w))) 3606 if (expect_false (ev_is_active (w)))
3156 return; 3607 return;
… …
3162 3613
3163 ev_start (EV_A_ (W)w, 1); 3614 ev_start (EV_A_ (W)w, 1);
3164 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3615 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3165 wlist_add (&anfds[fd].head, (WL)w); 3616 wlist_add (&anfds[fd].head, (WL)w);
3166 3617
3618 /* common bug, apparently */
3619 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3620
3167 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3621 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3168 w->events &= ~EV__IOFDSET; 3622 w->events &= ~EV__IOFDSET;
3169 3623
3170 EV_FREQUENT_CHECK; 3624 EV_FREQUENT_CHECK;
3171} 3625}
3172 3626
3173void noinline 3627void noinline
3174ev_io_stop (EV_P_ ev_io *w) 3628ev_io_stop (EV_P_ ev_io *w) EV_THROW
3175{ 3629{
3176 clear_pending (EV_A_ (W)w); 3630 clear_pending (EV_A_ (W)w);
3177 if (expect_false (!ev_is_active (w))) 3631 if (expect_false (!ev_is_active (w)))
3178 return; 3632 return;
3179 3633
… …
3188 3642
3189 EV_FREQUENT_CHECK; 3643 EV_FREQUENT_CHECK;
3190} 3644}
3191 3645
3192void noinline 3646void noinline
3193ev_timer_start (EV_P_ ev_timer *w) 3647ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3194{ 3648{
3195 if (expect_false (ev_is_active (w))) 3649 if (expect_false (ev_is_active (w)))
3196 return; 3650 return;
3197 3651
3198 ev_at (w) += mn_now; 3652 ev_at (w) += mn_now;
… …
3212 3666
3213 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3667 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3214} 3668}
3215 3669
3216void noinline 3670void noinline
3217ev_timer_stop (EV_P_ ev_timer *w) 3671ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3218{ 3672{
3219 clear_pending (EV_A_ (W)w); 3673 clear_pending (EV_A_ (W)w);
3220 if (expect_false (!ev_is_active (w))) 3674 if (expect_false (!ev_is_active (w)))
3221 return; 3675 return;
3222 3676
… …
3242 3696
3243 EV_FREQUENT_CHECK; 3697 EV_FREQUENT_CHECK;
3244} 3698}
3245 3699
3246void noinline 3700void noinline
3247ev_timer_again (EV_P_ ev_timer *w) 3701ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3248{ 3702{
3249 EV_FREQUENT_CHECK; 3703 EV_FREQUENT_CHECK;
3704
3705 clear_pending (EV_A_ (W)w);
3250 3706
3251 if (ev_is_active (w)) 3707 if (ev_is_active (w))
3252 { 3708 {
3253 if (w->repeat) 3709 if (w->repeat)
3254 { 3710 {
… …
3267 3723
3268 EV_FREQUENT_CHECK; 3724 EV_FREQUENT_CHECK;
3269} 3725}
3270 3726
3271ev_tstamp 3727ev_tstamp
3272ev_timer_remaining (EV_P_ ev_timer *w) 3728ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3273{ 3729{
3274 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3730 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3275} 3731}
3276 3732
3277#if EV_PERIODIC_ENABLE 3733#if EV_PERIODIC_ENABLE
3278void noinline 3734void noinline
3279ev_periodic_start (EV_P_ ev_periodic *w) 3735ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3280{ 3736{
3281 if (expect_false (ev_is_active (w))) 3737 if (expect_false (ev_is_active (w)))
3282 return; 3738 return;
3283 3739
3284 if (w->reschedule_cb) 3740 if (w->reschedule_cb)
… …
3304 3760
3305 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3761 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3306} 3762}
3307 3763
3308void noinline 3764void noinline
3309ev_periodic_stop (EV_P_ ev_periodic *w) 3765ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3310{ 3766{
3311 clear_pending (EV_A_ (W)w); 3767 clear_pending (EV_A_ (W)w);
3312 if (expect_false (!ev_is_active (w))) 3768 if (expect_false (!ev_is_active (w)))
3313 return; 3769 return;
3314 3770
… …
3332 3788
3333 EV_FREQUENT_CHECK; 3789 EV_FREQUENT_CHECK;
3334} 3790}
3335 3791
3336void noinline 3792void noinline
3337ev_periodic_again (EV_P_ ev_periodic *w) 3793ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3338{ 3794{
3339 /* TODO: use adjustheap and recalculation */ 3795 /* TODO: use adjustheap and recalculation */
3340 ev_periodic_stop (EV_A_ w); 3796 ev_periodic_stop (EV_A_ w);
3341 ev_periodic_start (EV_A_ w); 3797 ev_periodic_start (EV_A_ w);
3342} 3798}
… …
3347#endif 3803#endif
3348 3804
3349#if EV_SIGNAL_ENABLE 3805#if EV_SIGNAL_ENABLE
3350 3806
3351void noinline 3807void noinline
3352ev_signal_start (EV_P_ ev_signal *w) 3808ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3353{ 3809{
3354 if (expect_false (ev_is_active (w))) 3810 if (expect_false (ev_is_active (w)))
3355 return; 3811 return;
3356 3812
3357 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3813 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3359#if EV_MULTIPLICITY 3815#if EV_MULTIPLICITY
3360 assert (("libev: a signal must not be attached to two different loops", 3816 assert (("libev: a signal must not be attached to two different loops",
3361 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3817 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3362 3818
3363 signals [w->signum - 1].loop = EV_A; 3819 signals [w->signum - 1].loop = EV_A;
3820 ECB_MEMORY_FENCE_RELEASE;
3364#endif 3821#endif
3365 3822
3366 EV_FREQUENT_CHECK; 3823 EV_FREQUENT_CHECK;
3367 3824
3368#if EV_USE_SIGNALFD 3825#if EV_USE_SIGNALFD
… …
3428 3885
3429 EV_FREQUENT_CHECK; 3886 EV_FREQUENT_CHECK;
3430} 3887}
3431 3888
3432void noinline 3889void noinline
3433ev_signal_stop (EV_P_ ev_signal *w) 3890ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3434{ 3891{
3435 clear_pending (EV_A_ (W)w); 3892 clear_pending (EV_A_ (W)w);
3436 if (expect_false (!ev_is_active (w))) 3893 if (expect_false (!ev_is_active (w)))
3437 return; 3894 return;
3438 3895
… …
3469#endif 3926#endif
3470 3927
3471#if EV_CHILD_ENABLE 3928#if EV_CHILD_ENABLE
3472 3929
3473void 3930void
3474ev_child_start (EV_P_ ev_child *w) 3931ev_child_start (EV_P_ ev_child *w) EV_THROW
3475{ 3932{
3476#if EV_MULTIPLICITY 3933#if EV_MULTIPLICITY
3477 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3934 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3478#endif 3935#endif
3479 if (expect_false (ev_is_active (w))) 3936 if (expect_false (ev_is_active (w)))
… …
3486 3943
3487 EV_FREQUENT_CHECK; 3944 EV_FREQUENT_CHECK;
3488} 3945}
3489 3946
3490void 3947void
3491ev_child_stop (EV_P_ ev_child *w) 3948ev_child_stop (EV_P_ ev_child *w) EV_THROW
3492{ 3949{
3493 clear_pending (EV_A_ (W)w); 3950 clear_pending (EV_A_ (W)w);
3494 if (expect_false (!ev_is_active (w))) 3951 if (expect_false (!ev_is_active (w)))
3495 return; 3952 return;
3496 3953
… …
3523# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3980# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3524 3981
3525static void noinline 3982static void noinline
3526infy_add (EV_P_ ev_stat *w) 3983infy_add (EV_P_ ev_stat *w)
3527{ 3984{
3528 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); 3985 w->wd = inotify_add_watch (fs_fd, w->path,
3986 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3987 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3988 | IN_DONT_FOLLOW | IN_MASK_ADD);
3529 3989
3530 if (w->wd >= 0) 3990 if (w->wd >= 0)
3531 { 3991 {
3532 struct statfs sfs; 3992 struct statfs sfs;
3533 3993
… …
3537 3997
3538 if (!fs_2625) 3998 if (!fs_2625)
3539 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3999 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3540 else if (!statfs (w->path, &sfs) 4000 else if (!statfs (w->path, &sfs)
3541 && (sfs.f_type == 0x1373 /* devfs */ 4001 && (sfs.f_type == 0x1373 /* devfs */
4002 || sfs.f_type == 0x4006 /* fat */
4003 || sfs.f_type == 0x4d44 /* msdos */
3542 || sfs.f_type == 0xEF53 /* ext2/3 */ 4004 || sfs.f_type == 0xEF53 /* ext2/3 */
4005 || sfs.f_type == 0x72b6 /* jffs2 */
4006 || sfs.f_type == 0x858458f6 /* ramfs */
4007 || sfs.f_type == 0x5346544e /* ntfs */
3543 || sfs.f_type == 0x3153464a /* jfs */ 4008 || sfs.f_type == 0x3153464a /* jfs */
4009 || sfs.f_type == 0x9123683e /* btrfs */
3544 || sfs.f_type == 0x52654973 /* reiser3 */ 4010 || sfs.f_type == 0x52654973 /* reiser3 */
3545 || sfs.f_type == 0x01021994 /* tempfs */ 4011 || sfs.f_type == 0x01021994 /* tmpfs */
3546 || sfs.f_type == 0x58465342 /* xfs */)) 4012 || sfs.f_type == 0x58465342 /* xfs */))
3547 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 4013 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3548 else 4014 else
3549 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 4015 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3550 } 4016 }
… …
3663} 4129}
3664 4130
3665inline_size int 4131inline_size int
3666infy_newfd (void) 4132infy_newfd (void)
3667{ 4133{
3668#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4134#if defined IN_CLOEXEC && defined IN_NONBLOCK
3669 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4135 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3670 if (fd >= 0) 4136 if (fd >= 0)
3671 return fd; 4137 return fd;
3672#endif 4138#endif
3673 return inotify_init (); 4139 return inotify_init ();
… …
3748#else 4214#else
3749# define EV_LSTAT(p,b) lstat (p, b) 4215# define EV_LSTAT(p,b) lstat (p, b)
3750#endif 4216#endif
3751 4217
3752void 4218void
3753ev_stat_stat (EV_P_ ev_stat *w) 4219ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3754{ 4220{
3755 if (lstat (w->path, &w->attr) < 0) 4221 if (lstat (w->path, &w->attr) < 0)
3756 w->attr.st_nlink = 0; 4222 w->attr.st_nlink = 0;
3757 else if (!w->attr.st_nlink) 4223 else if (!w->attr.st_nlink)
3758 w->attr.st_nlink = 1; 4224 w->attr.st_nlink = 1;
… …
3797 ev_feed_event (EV_A_ w, EV_STAT); 4263 ev_feed_event (EV_A_ w, EV_STAT);
3798 } 4264 }
3799} 4265}
3800 4266
3801void 4267void
3802ev_stat_start (EV_P_ ev_stat *w) 4268ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3803{ 4269{
3804 if (expect_false (ev_is_active (w))) 4270 if (expect_false (ev_is_active (w)))
3805 return; 4271 return;
3806 4272
3807 ev_stat_stat (EV_A_ w); 4273 ev_stat_stat (EV_A_ w);
… …
3828 4294
3829 EV_FREQUENT_CHECK; 4295 EV_FREQUENT_CHECK;
3830} 4296}
3831 4297
3832void 4298void
3833ev_stat_stop (EV_P_ ev_stat *w) 4299ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3834{ 4300{
3835 clear_pending (EV_A_ (W)w); 4301 clear_pending (EV_A_ (W)w);
3836 if (expect_false (!ev_is_active (w))) 4302 if (expect_false (!ev_is_active (w)))
3837 return; 4303 return;
3838 4304
… …
3854} 4320}
3855#endif 4321#endif
3856 4322
3857#if EV_IDLE_ENABLE 4323#if EV_IDLE_ENABLE
3858void 4324void
3859ev_idle_start (EV_P_ ev_idle *w) 4325ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3860{ 4326{
3861 if (expect_false (ev_is_active (w))) 4327 if (expect_false (ev_is_active (w)))
3862 return; 4328 return;
3863 4329
3864 pri_adjust (EV_A_ (W)w); 4330 pri_adjust (EV_A_ (W)w);
… …
3877 4343
3878 EV_FREQUENT_CHECK; 4344 EV_FREQUENT_CHECK;
3879} 4345}
3880 4346
3881void 4347void
3882ev_idle_stop (EV_P_ ev_idle *w) 4348ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3883{ 4349{
3884 clear_pending (EV_A_ (W)w); 4350 clear_pending (EV_A_ (W)w);
3885 if (expect_false (!ev_is_active (w))) 4351 if (expect_false (!ev_is_active (w)))
3886 return; 4352 return;
3887 4353
… …
3901} 4367}
3902#endif 4368#endif
3903 4369
3904#if EV_PREPARE_ENABLE 4370#if EV_PREPARE_ENABLE
3905void 4371void
3906ev_prepare_start (EV_P_ ev_prepare *w) 4372ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3907{ 4373{
3908 if (expect_false (ev_is_active (w))) 4374 if (expect_false (ev_is_active (w)))
3909 return; 4375 return;
3910 4376
3911 EV_FREQUENT_CHECK; 4377 EV_FREQUENT_CHECK;
… …
3916 4382
3917 EV_FREQUENT_CHECK; 4383 EV_FREQUENT_CHECK;
3918} 4384}
3919 4385
3920void 4386void
3921ev_prepare_stop (EV_P_ ev_prepare *w) 4387ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3922{ 4388{
3923 clear_pending (EV_A_ (W)w); 4389 clear_pending (EV_A_ (W)w);
3924 if (expect_false (!ev_is_active (w))) 4390 if (expect_false (!ev_is_active (w)))
3925 return; 4391 return;
3926 4392
… …
3939} 4405}
3940#endif 4406#endif
3941 4407
3942#if EV_CHECK_ENABLE 4408#if EV_CHECK_ENABLE
3943void 4409void
3944ev_check_start (EV_P_ ev_check *w) 4410ev_check_start (EV_P_ ev_check *w) EV_THROW
3945{ 4411{
3946 if (expect_false (ev_is_active (w))) 4412 if (expect_false (ev_is_active (w)))
3947 return; 4413 return;
3948 4414
3949 EV_FREQUENT_CHECK; 4415 EV_FREQUENT_CHECK;
… …
3954 4420
3955 EV_FREQUENT_CHECK; 4421 EV_FREQUENT_CHECK;
3956} 4422}
3957 4423
3958void 4424void
3959ev_check_stop (EV_P_ ev_check *w) 4425ev_check_stop (EV_P_ ev_check *w) EV_THROW
3960{ 4426{
3961 clear_pending (EV_A_ (W)w); 4427 clear_pending (EV_A_ (W)w);
3962 if (expect_false (!ev_is_active (w))) 4428 if (expect_false (!ev_is_active (w)))
3963 return; 4429 return;
3964 4430
… …
3977} 4443}
3978#endif 4444#endif
3979 4445
3980#if EV_EMBED_ENABLE 4446#if EV_EMBED_ENABLE
3981void noinline 4447void noinline
3982ev_embed_sweep (EV_P_ ev_embed *w) 4448ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
3983{ 4449{
3984 ev_run (w->other, EVRUN_NOWAIT); 4450 ev_run (w->other, EVRUN_NOWAIT);
3985} 4451}
3986 4452
3987static void 4453static void
… …
4035 ev_idle_stop (EV_A_ idle); 4501 ev_idle_stop (EV_A_ idle);
4036} 4502}
4037#endif 4503#endif
4038 4504
4039void 4505void
4040ev_embed_start (EV_P_ ev_embed *w) 4506ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4041{ 4507{
4042 if (expect_false (ev_is_active (w))) 4508 if (expect_false (ev_is_active (w)))
4043 return; 4509 return;
4044 4510
4045 { 4511 {
… …
4066 4532
4067 EV_FREQUENT_CHECK; 4533 EV_FREQUENT_CHECK;
4068} 4534}
4069 4535
4070void 4536void
4071ev_embed_stop (EV_P_ ev_embed *w) 4537ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4072{ 4538{
4073 clear_pending (EV_A_ (W)w); 4539 clear_pending (EV_A_ (W)w);
4074 if (expect_false (!ev_is_active (w))) 4540 if (expect_false (!ev_is_active (w)))
4075 return; 4541 return;
4076 4542
… …
4086} 4552}
4087#endif 4553#endif
4088 4554
4089#if EV_FORK_ENABLE 4555#if EV_FORK_ENABLE
4090void 4556void
4091ev_fork_start (EV_P_ ev_fork *w) 4557ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4092{ 4558{
4093 if (expect_false (ev_is_active (w))) 4559 if (expect_false (ev_is_active (w)))
4094 return; 4560 return;
4095 4561
4096 EV_FREQUENT_CHECK; 4562 EV_FREQUENT_CHECK;
… …
4101 4567
4102 EV_FREQUENT_CHECK; 4568 EV_FREQUENT_CHECK;
4103} 4569}
4104 4570
4105void 4571void
4106ev_fork_stop (EV_P_ ev_fork *w) 4572ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4107{ 4573{
4108 clear_pending (EV_A_ (W)w); 4574 clear_pending (EV_A_ (W)w);
4109 if (expect_false (!ev_is_active (w))) 4575 if (expect_false (!ev_is_active (w)))
4110 return; 4576 return;
4111 4577
… …
4124} 4590}
4125#endif 4591#endif
4126 4592
4127#if EV_CLEANUP_ENABLE 4593#if EV_CLEANUP_ENABLE
4128void 4594void
4129ev_cleanup_start (EV_P_ ev_cleanup *w) 4595ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4130{ 4596{
4131 if (expect_false (ev_is_active (w))) 4597 if (expect_false (ev_is_active (w)))
4132 return; 4598 return;
4133 4599
4134 EV_FREQUENT_CHECK; 4600 EV_FREQUENT_CHECK;
… …
4141 ev_unref (EV_A); 4607 ev_unref (EV_A);
4142 EV_FREQUENT_CHECK; 4608 EV_FREQUENT_CHECK;
4143} 4609}
4144 4610
4145void 4611void
4146ev_cleanup_stop (EV_P_ ev_cleanup *w) 4612ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4147{ 4613{
4148 clear_pending (EV_A_ (W)w); 4614 clear_pending (EV_A_ (W)w);
4149 if (expect_false (!ev_is_active (w))) 4615 if (expect_false (!ev_is_active (w)))
4150 return; 4616 return;
4151 4617
… …
4165} 4631}
4166#endif 4632#endif
4167 4633
4168#if EV_ASYNC_ENABLE 4634#if EV_ASYNC_ENABLE
4169void 4635void
4170ev_async_start (EV_P_ ev_async *w) 4636ev_async_start (EV_P_ ev_async *w) EV_THROW
4171{ 4637{
4172 if (expect_false (ev_is_active (w))) 4638 if (expect_false (ev_is_active (w)))
4173 return; 4639 return;
4174 4640
4175 w->sent = 0; 4641 w->sent = 0;
… …
4184 4650
4185 EV_FREQUENT_CHECK; 4651 EV_FREQUENT_CHECK;
4186} 4652}
4187 4653
4188void 4654void
4189ev_async_stop (EV_P_ ev_async *w) 4655ev_async_stop (EV_P_ ev_async *w) EV_THROW
4190{ 4656{
4191 clear_pending (EV_A_ (W)w); 4657 clear_pending (EV_A_ (W)w);
4192 if (expect_false (!ev_is_active (w))) 4658 if (expect_false (!ev_is_active (w)))
4193 return; 4659 return;
4194 4660
… …
4205 4671
4206 EV_FREQUENT_CHECK; 4672 EV_FREQUENT_CHECK;
4207} 4673}
4208 4674
4209void 4675void
4210ev_async_send (EV_P_ ev_async *w) 4676ev_async_send (EV_P_ ev_async *w) EV_THROW
4211{ 4677{
4212 w->sent = 1; 4678 w->sent = 1;
4213 evpipe_write (EV_A_ &async_pending); 4679 evpipe_write (EV_A_ &async_pending);
4214} 4680}
4215#endif 4681#endif
… …
4252 4718
4253 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4719 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4254} 4720}
4255 4721
4256void 4722void
4257ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4723ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4258{ 4724{
4259 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4725 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4260 4726
4261 if (expect_false (!once)) 4727 if (expect_false (!once))
4262 { 4728 {
… …
4284 4750
4285/*****************************************************************************/ 4751/*****************************************************************************/
4286 4752
4287#if EV_WALK_ENABLE 4753#if EV_WALK_ENABLE
4288void ecb_cold 4754void ecb_cold
4289ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4755ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4290{ 4756{
4291 int i, j; 4757 int i, j;
4292 ev_watcher_list *wl, *wn; 4758 ev_watcher_list *wl, *wn;
4293 4759
4294 if (types & (EV_IO | EV_EMBED)) 4760 if (types & (EV_IO | EV_EMBED))
… …
4400 4866
4401#if EV_MULTIPLICITY 4867#if EV_MULTIPLICITY
4402 #include "ev_wrap.h" 4868 #include "ev_wrap.h"
4403#endif 4869#endif
4404 4870
4405EV_CPP(})
4406

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