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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 1.463 by root, Thu Jan 16 11:51:05 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 (©) 2009-2013 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:
… …
507 */ 511 */
508 512
509#ifndef ECB_H 513#ifndef ECB_H
510#define ECB_H 514#define ECB_H
511 515
516/* 16 bits major, 16 bits minor */
517#define ECB_VERSION 0x00010003
518
512#ifdef _WIN32 519#ifdef _WIN32
513 typedef signed char int8_t; 520 typedef signed char int8_t;
514 typedef unsigned char uint8_t; 521 typedef unsigned char uint8_t;
515 typedef signed short int16_t; 522 typedef signed short int16_t;
516 typedef unsigned short uint16_t; 523 typedef unsigned short uint16_t;
… …
521 typedef unsigned long long uint64_t; 528 typedef unsigned long long uint64_t;
522 #else /* _MSC_VER || __BORLANDC__ */ 529 #else /* _MSC_VER || __BORLANDC__ */
523 typedef signed __int64 int64_t; 530 typedef signed __int64 int64_t;
524 typedef unsigned __int64 uint64_t; 531 typedef unsigned __int64 uint64_t;
525 #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
526#else 542#else
527 #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
528#endif 558#endif
529 559
530/* many compilers define _GNUC_ to some versions but then only implement 560/* many compilers define _GNUC_ to some versions but then only implement
531 * what their idiot authors think are the "more important" extensions, 561 * what their idiot authors think are the "more important" extensions,
532 * causing enormous grief in return for some better fake benchmark numbers. 562 * causing enormous grief in return for some better fake benchmark numbers.
533 * or so. 563 * or so.
534 * 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
535 * 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.
536 */ 566 */
537#ifndef ECB_GCC_VERSION 567#ifndef ECB_GCC_VERSION
538 #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__
539 #define ECB_GCC_VERSION(major,minor) 0 569 #define ECB_GCC_VERSION(major,minor) 0
540 #else 570 #else
541 #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)))
542 #endif 572 #endif
543#endif 573#endif
544 574
575#define ECB_C (__STDC__+0) /* this assumes that __STDC__ is either empty or a number */
576#define ECB_C99 (__STDC_VERSION__ >= 199901L)
577#define ECB_C11 (__STDC_VERSION__ >= 201112L)
578#define ECB_CPP (__cplusplus+0)
579#define ECB_CPP11 (__cplusplus >= 201103L)
580
581#if ECB_CPP
582 #define ECB_EXTERN_C extern "C"
583 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
584 #define ECB_EXTERN_C_END }
585#else
586 #define ECB_EXTERN_C extern
587 #define ECB_EXTERN_C_BEG
588 #define ECB_EXTERN_C_END
589#endif
590
545/*****************************************************************************/ 591/*****************************************************************************/
546 592
547/* ECB_NO_THREADS - ecb is not used by multiple threads, ever */ 593/* 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 */ 594/* ECB_NO_SMP - ecb might be used in multiple threads, but only on a single cpu */
549 595
550#if ECB_NO_THREADS 596#if ECB_NO_THREADS
551# define ECB_NO_SMP 1 597 #define ECB_NO_SMP 1
552#endif 598#endif
553 599
554#if ECB_NO_THREADS || ECB_NO_SMP 600#if ECB_NO_SMP
555 #define ECB_MEMORY_FENCE do { } while (0) 601 #define ECB_MEMORY_FENCE do { } while (0)
556#endif 602#endif
557 603
558#ifndef ECB_MEMORY_FENCE 604#ifndef ECB_MEMORY_FENCE
559 #if ECB_GCC_VERSION(2,5) || defined(__INTEL_COMPILER) || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 605 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
560 #if __i386 || __i386__ 606 #if __i386 || __i386__
561 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 607 #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 */ 608 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
563 #define ECB_MEMORY_FENCE_RELEASE do { } while (0) /* unlikely to change in future cpus */ 609 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
564 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 610 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__
565 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 611 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
566 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("lfence" : : : "memory") 612 #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 */ 613 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
568 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 614 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
569 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 615 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
570 #elif defined(__ARM_ARCH_6__ ) || defined(__ARM_ARCH_6J__ ) \ 616 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
571 || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6ZK__) 617 || 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") 618 #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__ ) \ 619 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
574 || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7R__ ) 620 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__
575 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 621 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
576 #elif __sparc || __sparc__ 622 #elif (__sparc || __sparc__) && !__sparcv8
577 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad | " : : : "memory") 623 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
578 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 624 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
579 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 625 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
580 #elif defined(__s390__) || defined(__s390x__) 626 #elif defined __s390__ || defined __s390x__
581 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 627 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
628 #elif defined __mips__
629 /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
630 /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
631 #define ECB_MEMORY_FENCE __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
632 #elif defined __alpha__
633 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mb" : : : "memory")
634 #elif defined __hppa__
635 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
636 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("")
637 #elif defined __ia64__
638 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mf" : : : "memory")
639 #elif defined __m68k__
640 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
641 #elif defined __m88k__
642 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("tb1 0,%%r0,128" : : : "memory")
643 #elif defined __sh__
644 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("" : : : "memory")
582 #endif 645 #endif
583 #endif 646 #endif
584#endif 647#endif
585 648
586#ifndef ECB_MEMORY_FENCE 649#ifndef ECB_MEMORY_FENCE
650 #if ECB_GCC_VERSION(4,7)
651 /* see comment below (stdatomic.h) about the C11 memory model. */
652 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
653
654 /* The __has_feature syntax from clang is so misdesigned that we cannot use it
655 * without risking compile time errors with other compilers. We *could*
656 * define our own ecb_clang_has_feature, but I just can't be bothered to work
657 * around this shit time and again.
658 * #elif defined __clang && __has_feature (cxx_atomic)
659 * // see comment below (stdatomic.h) about the C11 memory model.
660 * #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
661 */
662
587 #if ECB_GCC_VERSION(4,4) || defined(__INTEL_COMPILER) || defined(__clang__) 663 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
588 #define ECB_MEMORY_FENCE __sync_synchronize () 664 #define ECB_MEMORY_FENCE __sync_synchronize ()
589 /*#define ECB_MEMORY_FENCE_ACQUIRE ({ char dummy = 0; __sync_lock_test_and_set (&dummy, 1); }) */ 665 #elif _MSC_VER >= 1500 /* VC++ 2008 */
590 /*#define ECB_MEMORY_FENCE_RELEASE ({ char dummy = 1; __sync_lock_release (&dummy ); }) */ 666 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
667 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
668 #define ECB_MEMORY_FENCE _ReadWriteBarrier (); MemoryBarrier()
669 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier (); MemoryBarrier() /* according to msdn, _ReadBarrier is not a load fence */
670 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier (); MemoryBarrier()
591 #elif _MSC_VER >= 1400 /* VC++ 2005 */ 671 #elif _MSC_VER >= 1400 /* VC++ 2005 */
592 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier) 672 #pragma intrinsic(_ReadBarrier,_WriteBarrier,_ReadWriteBarrier)
593 #define ECB_MEMORY_FENCE _ReadWriteBarrier () 673 #define ECB_MEMORY_FENCE _ReadWriteBarrier ()
594 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */ 674 #define ECB_MEMORY_FENCE_ACQUIRE _ReadWriteBarrier () /* according to msdn, _ReadBarrier is not a load fence */
595 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier () 675 #define ECB_MEMORY_FENCE_RELEASE _WriteBarrier ()
596 #elif defined(_WIN32) 676 #elif defined _WIN32
597 #include <WinNT.h> 677 #include <WinNT.h>
598 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 678 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
599 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 679 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
600 #include <mbarrier.h> 680 #include <mbarrier.h>
601 #define ECB_MEMORY_FENCE __machine_rw_barrier () 681 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
602 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 682 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier ()
603 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 683 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier ()
684 #elif __xlC__
685 #define ECB_MEMORY_FENCE __sync ()
686 #endif
687#endif
688
689#ifndef ECB_MEMORY_FENCE
690 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
691 /* we assume that these memory fences work on all variables/all memory accesses, */
692 /* not just C11 atomics and atomic accesses */
693 #include <stdatomic.h>
694 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
695 /* any fence other than seq_cst, which isn't very efficient for us. */
696 /* Why that is, we don't know - either the C11 memory model is quite useless */
697 /* for most usages, or gcc and clang have a bug */
698 /* I *currently* lean towards the latter, and inefficiently implement */
699 /* all three of ecb's fences as a seq_cst fence */
700 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
604 #endif 701 #endif
605#endif 702#endif
606 703
607#ifndef ECB_MEMORY_FENCE 704#ifndef ECB_MEMORY_FENCE
608 #if !ECB_AVOID_PTHREADS 705 #if !ECB_AVOID_PTHREADS
… …
620 static pthread_mutex_t ecb_mf_lock = PTHREAD_MUTEX_INITIALIZER; 717 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) 718 #define ECB_MEMORY_FENCE do { pthread_mutex_lock (&ecb_mf_lock); pthread_mutex_unlock (&ecb_mf_lock); } while (0)
622 #endif 719 #endif
623#endif 720#endif
624 721
625#if !defined(ECB_MEMORY_FENCE_ACQUIRE) && defined(ECB_MEMORY_FENCE) 722#if !defined ECB_MEMORY_FENCE_ACQUIRE && defined ECB_MEMORY_FENCE
626 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 723 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
627#endif 724#endif
628 725
629#if !defined(ECB_MEMORY_FENCE_RELEASE) && defined(ECB_MEMORY_FENCE) 726#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
630 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 727 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
631#endif 728#endif
632 729
633/*****************************************************************************/ 730/*****************************************************************************/
634
635#define ECB_C99 (__STDC_VERSION__ >= 199901L)
636 731
637#if __cplusplus 732#if __cplusplus
638 #define ecb_inline static inline 733 #define ecb_inline static inline
639#elif ECB_GCC_VERSION(2,5) 734#elif ECB_GCC_VERSION(2,5)
640 #define ecb_inline static __inline__ 735 #define ecb_inline static __inline__
… …
679#elif ECB_GCC_VERSION(3,0) 774#elif ECB_GCC_VERSION(3,0)
680 #define ecb_decltype(x) __typeof(x) 775 #define ecb_decltype(x) __typeof(x)
681#endif 776#endif
682 777
683#define ecb_noinline ecb_attribute ((__noinline__)) 778#define ecb_noinline ecb_attribute ((__noinline__))
684#define ecb_noreturn ecb_attribute ((__noreturn__))
685#define ecb_unused ecb_attribute ((__unused__)) 779#define ecb_unused ecb_attribute ((__unused__))
686#define ecb_const ecb_attribute ((__const__)) 780#define ecb_const ecb_attribute ((__const__))
687#define ecb_pure ecb_attribute ((__pure__)) 781#define ecb_pure ecb_attribute ((__pure__))
782
783#if ECB_C11
784 #define ecb_noreturn _Noreturn
785#else
786 #define ecb_noreturn ecb_attribute ((__noreturn__))
787#endif
688 788
689#if ECB_GCC_VERSION(4,3) 789#if ECB_GCC_VERSION(4,3)
690 #define ecb_artificial ecb_attribute ((__artificial__)) 790 #define ecb_artificial ecb_attribute ((__artificial__))
691 #define ecb_hot ecb_attribute ((__hot__)) 791 #define ecb_hot ecb_attribute ((__hot__))
692 #define ecb_cold ecb_attribute ((__cold__)) 792 #define ecb_cold ecb_attribute ((__cold__))
… …
783 883
784 return r + ecb_ld32 (x); 884 return r + ecb_ld32 (x);
785 } 885 }
786#endif 886#endif
787 887
888ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) ecb_const;
889ecb_function_ ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
890ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) ecb_const;
891ecb_function_ ecb_bool ecb_is_pot64 (uint64_t x) { return !(x & (x - 1)); }
892
788ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; 893ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const;
789ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) 894ecb_function_ uint8_t ecb_bitrev8 (uint8_t x)
790{ 895{
791 return ( (x * 0x0802U & 0x22110U) 896 return ( (x * 0x0802U & 0x22110U)
792 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; 897 | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16;
… …
876 ecb_inline void ecb_unreachable (void) ecb_noreturn; 981 ecb_inline void ecb_unreachable (void) ecb_noreturn;
877 ecb_inline void ecb_unreachable (void) { } 982 ecb_inline void ecb_unreachable (void) { }
878#endif 983#endif
879 984
880/* try to tell the compiler that some condition is definitely true */ 985/* try to tell the compiler that some condition is definitely true */
881#define ecb_assume(cond) do { if (!(cond)) ecb_unreachable (); } while (0) 986#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
882 987
883ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const; 988ecb_inline unsigned char ecb_byteorder_helper (void) ecb_const;
884ecb_inline unsigned char 989ecb_inline unsigned char
885ecb_byteorder_helper (void) 990ecb_byteorder_helper (void)
886{ 991{
887 const uint32_t u = 0x11223344; 992 /* the union code still generates code under pressure in gcc, */
888 return *(unsigned char *)&u; 993 /* but less than using pointers, and always seems to */
994 /* successfully return a constant. */
995 /* the reason why we have this horrible preprocessor mess */
996 /* is to avoid it in all cases, at least on common architectures */
997 /* or when using a recent enough gcc version (>= 4.6) */
998#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
999 return 0x44;
1000#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
1001 return 0x44;
1002#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
1003 return 0x11;
1004#else
1005 union
1006 {
1007 uint32_t i;
1008 uint8_t c;
1009 } u = { 0x11223344 };
1010 return u.c;
1011#endif
889} 1012}
890 1013
891ecb_inline ecb_bool ecb_big_endian (void) ecb_const; 1014ecb_inline ecb_bool ecb_big_endian (void) ecb_const;
892ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1015ecb_inline ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; }
893ecb_inline ecb_bool ecb_little_endian (void) ecb_const; 1016ecb_inline ecb_bool ecb_little_endian (void) ecb_const;
… …
924 } 1047 }
925#else 1048#else
926 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1049 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
927#endif 1050#endif
928 1051
1052/*******************************************************************************/
1053/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1054
1055/* basically, everything uses "ieee pure-endian" floating point numbers */
1056/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1057#if 0 \
1058 || __i386 || __i386__ \
1059 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \
1060 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1061 || defined __arm__ && defined __ARM_EABI__ \
1062 || defined __s390__ || defined __s390x__ \
1063 || defined __mips__ \
1064 || defined __alpha__ \
1065 || defined __hppa__ \
1066 || defined __ia64__ \
1067 || defined __m68k__ \
1068 || defined __m88k__ \
1069 || defined __sh__ \
1070 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64
1071 #define ECB_STDFP 1
1072 #include <string.h> /* for memcpy */
1073#else
1074 #define ECB_STDFP 0
1075#endif
1076
1077#ifndef ECB_NO_LIBM
1078
1079 #include <math.h> /* for frexp*, ldexp*, INFINITY, NAN */
1080
1081 /* only the oldest of old doesn't have this one. solaris. */
1082 #ifdef INFINITY
1083 #define ECB_INFINITY INFINITY
1084 #else
1085 #define ECB_INFINITY HUGE_VAL
1086 #endif
1087
1088 #ifdef NAN
1089 #define ECB_NAN NAN
1090 #else
1091 #define ECB_NAN ECB_INFINITY
1092 #endif
1093
1094 /* converts an ieee half/binary16 to a float */
1095 ecb_function_ float ecb_binary16_to_float (uint16_t x) ecb_const;
1096 ecb_function_ float
1097 ecb_binary16_to_float (uint16_t x)
1098 {
1099 int e = (x >> 10) & 0x1f;
1100 int m = x & 0x3ff;
1101 float r;
1102
1103 if (!e ) r = ldexpf (m , -24);
1104 else if (e != 31) r = ldexpf (m + 0x400, e - 25);
1105 else if (m ) r = ECB_NAN;
1106 else r = ECB_INFINITY;
1107
1108 return x & 0x8000 ? -r : r;
1109 }
1110
1111 /* convert a float to ieee single/binary32 */
1112 ecb_function_ uint32_t ecb_float_to_binary32 (float x) ecb_const;
1113 ecb_function_ uint32_t
1114 ecb_float_to_binary32 (float x)
1115 {
1116 uint32_t r;
1117
1118 #if ECB_STDFP
1119 memcpy (&r, &x, 4);
1120 #else
1121 /* slow emulation, works for anything but -0 */
1122 uint32_t m;
1123 int e;
1124
1125 if (x == 0e0f ) return 0x00000000U;
1126 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1127 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1128 if (x != x ) return 0x7fbfffffU;
1129
1130 m = frexpf (x, &e) * 0x1000000U;
1131
1132 r = m & 0x80000000U;
1133
1134 if (r)
1135 m = -m;
1136
1137 if (e <= -126)
1138 {
1139 m &= 0xffffffU;
1140 m >>= (-125 - e);
1141 e = -126;
1142 }
1143
1144 r |= (e + 126) << 23;
1145 r |= m & 0x7fffffU;
1146 #endif
1147
1148 return r;
1149 }
1150
1151 /* converts an ieee single/binary32 to a float */
1152 ecb_function_ float ecb_binary32_to_float (uint32_t x) ecb_const;
1153 ecb_function_ float
1154 ecb_binary32_to_float (uint32_t x)
1155 {
1156 float r;
1157
1158 #if ECB_STDFP
1159 memcpy (&r, &x, 4);
1160 #else
1161 /* emulation, only works for normals and subnormals and +0 */
1162 int neg = x >> 31;
1163 int e = (x >> 23) & 0xffU;
1164
1165 x &= 0x7fffffU;
1166
1167 if (e)
1168 x |= 0x800000U;
1169 else
1170 e = 1;
1171
1172 /* we distrust ldexpf a bit and do the 2**-24 scaling by an extra multiply */
1173 r = ldexpf (x * (0.5f / 0x800000U), e - 126);
1174
1175 r = neg ? -r : r;
1176 #endif
1177
1178 return r;
1179 }
1180
1181 /* convert a double to ieee double/binary64 */
1182 ecb_function_ uint64_t ecb_double_to_binary64 (double x) ecb_const;
1183 ecb_function_ uint64_t
1184 ecb_double_to_binary64 (double x)
1185 {
1186 uint64_t r;
1187
1188 #if ECB_STDFP
1189 memcpy (&r, &x, 8);
1190 #else
1191 /* slow emulation, works for anything but -0 */
1192 uint64_t m;
1193 int e;
1194
1195 if (x == 0e0 ) return 0x0000000000000000U;
1196 if (x > +1.79769313486231470e+308) return 0x7ff0000000000000U;
1197 if (x < -1.79769313486231470e+308) return 0xfff0000000000000U;
1198 if (x != x ) return 0X7ff7ffffffffffffU;
1199
1200 m = frexp (x, &e) * 0x20000000000000U;
1201
1202 r = m & 0x8000000000000000;;
1203
1204 if (r)
1205 m = -m;
1206
1207 if (e <= -1022)
1208 {
1209 m &= 0x1fffffffffffffU;
1210 m >>= (-1021 - e);
1211 e = -1022;
1212 }
1213
1214 r |= ((uint64_t)(e + 1022)) << 52;
1215 r |= m & 0xfffffffffffffU;
1216 #endif
1217
1218 return r;
1219 }
1220
1221 /* converts an ieee double/binary64 to a double */
1222 ecb_function_ double ecb_binary64_to_double (uint64_t x) ecb_const;
1223 ecb_function_ double
1224 ecb_binary64_to_double (uint64_t x)
1225 {
1226 double r;
1227
1228 #if ECB_STDFP
1229 memcpy (&r, &x, 8);
1230 #else
1231 /* emulation, only works for normals and subnormals and +0 */
1232 int neg = x >> 63;
1233 int e = (x >> 52) & 0x7ffU;
1234
1235 x &= 0xfffffffffffffU;
1236
1237 if (e)
1238 x |= 0x10000000000000U;
1239 else
1240 e = 1;
1241
1242 /* we distrust ldexp a bit and do the 2**-53 scaling by an extra multiply */
1243 r = ldexp (x * (0.5 / 0x10000000000000U), e - 1022);
1244
1245 r = neg ? -r : r;
1246 #endif
1247
1248 return r;
1249 }
1250
1251#endif
1252
929#endif 1253#endif
930 1254
931/* ECB.H END */ 1255/* ECB.H END */
932 1256
933#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1257#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
… …
1099{ 1423{
1100 write (STDERR_FILENO, msg, strlen (msg)); 1424 write (STDERR_FILENO, msg, strlen (msg));
1101} 1425}
1102#endif 1426#endif
1103 1427
1104static void (*syserr_cb)(const char *msg); 1428static void (*syserr_cb)(const char *msg) EV_THROW;
1105 1429
1106void ecb_cold 1430void ecb_cold
1107ev_set_syserr_cb (void (*cb)(const char *msg)) 1431ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW
1108{ 1432{
1109 syserr_cb = cb; 1433 syserr_cb = cb;
1110} 1434}
1111 1435
1112static void noinline ecb_cold 1436static void noinline ecb_cold
… …
1130 abort (); 1454 abort ();
1131 } 1455 }
1132} 1456}
1133 1457
1134static void * 1458static void *
1135ev_realloc_emul (void *ptr, long size) 1459ev_realloc_emul (void *ptr, long size) EV_THROW
1136{ 1460{
1137#if __GLIBC__
1138 return realloc (ptr, size);
1139#else
1140 /* some systems, notably openbsd and darwin, fail to properly 1461 /* some systems, notably openbsd and darwin, fail to properly
1141 * implement realloc (x, 0) (as required by both ansi c-89 and 1462 * implement realloc (x, 0) (as required by both ansi c-89 and
1142 * the single unix specification, so work around them here. 1463 * the single unix specification, so work around them here.
1464 * recently, also (at least) fedora and debian started breaking it,
1465 * despite documenting it otherwise.
1143 */ 1466 */
1144 1467
1145 if (size) 1468 if (size)
1146 return realloc (ptr, size); 1469 return realloc (ptr, size);
1147 1470
1148 free (ptr); 1471 free (ptr);
1149 return 0; 1472 return 0;
1150#endif
1151} 1473}
1152 1474
1153static void *(*alloc)(void *ptr, long size) = ev_realloc_emul; 1475static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul;
1154 1476
1155void ecb_cold 1477void ecb_cold
1156ev_set_allocator (void *(*cb)(void *ptr, long size)) 1478ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW
1157{ 1479{
1158 alloc = cb; 1480 alloc = cb;
1159} 1481}
1160 1482
1161inline_speed void * 1483inline_speed void *
… …
1278 1600
1279/*****************************************************************************/ 1601/*****************************************************************************/
1280 1602
1281#ifndef EV_HAVE_EV_TIME 1603#ifndef EV_HAVE_EV_TIME
1282ev_tstamp 1604ev_tstamp
1283ev_time (void) 1605ev_time (void) EV_THROW
1284{ 1606{
1285#if EV_USE_REALTIME 1607#if EV_USE_REALTIME
1286 if (expect_true (have_realtime)) 1608 if (expect_true (have_realtime))
1287 { 1609 {
1288 struct timespec ts; 1610 struct timespec ts;
… …
1312 return ev_time (); 1634 return ev_time ();
1313} 1635}
1314 1636
1315#if EV_MULTIPLICITY 1637#if EV_MULTIPLICITY
1316ev_tstamp 1638ev_tstamp
1317ev_now (EV_P) 1639ev_now (EV_P) EV_THROW
1318{ 1640{
1319 return ev_rt_now; 1641 return ev_rt_now;
1320} 1642}
1321#endif 1643#endif
1322 1644
1323void 1645void
1324ev_sleep (ev_tstamp delay) 1646ev_sleep (ev_tstamp delay) EV_THROW
1325{ 1647{
1326 if (delay > 0.) 1648 if (delay > 0.)
1327 { 1649 {
1328#if EV_USE_NANOSLEEP 1650#if EV_USE_NANOSLEEP
1329 struct timespec ts; 1651 struct timespec ts;
1330 1652
1331 EV_TS_SET (ts, delay); 1653 EV_TS_SET (ts, delay);
1332 nanosleep (&ts, 0); 1654 nanosleep (&ts, 0);
1333#elif defined(_WIN32) 1655#elif defined _WIN32
1334 Sleep ((unsigned long)(delay * 1e3)); 1656 Sleep ((unsigned long)(delay * 1e3));
1335#else 1657#else
1336 struct timeval tv; 1658 struct timeval tv;
1337 1659
1338 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 1660 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
… …
1410pendingcb (EV_P_ ev_prepare *w, int revents) 1732pendingcb (EV_P_ ev_prepare *w, int revents)
1411{ 1733{
1412} 1734}
1413 1735
1414void noinline 1736void noinline
1415ev_feed_event (EV_P_ void *w, int revents) 1737ev_feed_event (EV_P_ void *w, int revents) EV_THROW
1416{ 1738{
1417 W w_ = (W)w; 1739 W w_ = (W)w;
1418 int pri = ABSPRI (w_); 1740 int pri = ABSPRI (w_);
1419 1741
1420 if (expect_false (w_->pending)) 1742 if (expect_false (w_->pending))
… …
1424 w_->pending = ++pendingcnt [pri]; 1746 w_->pending = ++pendingcnt [pri];
1425 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 1747 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2);
1426 pendings [pri][w_->pending - 1].w = w_; 1748 pendings [pri][w_->pending - 1].w = w_;
1427 pendings [pri][w_->pending - 1].events = revents; 1749 pendings [pri][w_->pending - 1].events = revents;
1428 } 1750 }
1751
1752 pendingpri = NUMPRI - 1;
1429} 1753}
1430 1754
1431inline_speed void 1755inline_speed void
1432feed_reverse (EV_P_ W w) 1756feed_reverse (EV_P_ W w)
1433{ 1757{
… …
1479 if (expect_true (!anfd->reify)) 1803 if (expect_true (!anfd->reify))
1480 fd_event_nocheck (EV_A_ fd, revents); 1804 fd_event_nocheck (EV_A_ fd, revents);
1481} 1805}
1482 1806
1483void 1807void
1484ev_feed_fd_event (EV_P_ int fd, int revents) 1808ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW
1485{ 1809{
1486 if (fd >= 0 && fd < anfdmax) 1810 if (fd >= 0 && fd < anfdmax)
1487 fd_event_nocheck (EV_A_ fd, revents); 1811 fd_event_nocheck (EV_A_ fd, revents);
1488} 1812}
1489 1813
… …
1808static void noinline ecb_cold 2132static void noinline ecb_cold
1809evpipe_init (EV_P) 2133evpipe_init (EV_P)
1810{ 2134{
1811 if (!ev_is_active (&pipe_w)) 2135 if (!ev_is_active (&pipe_w))
1812 { 2136 {
2137 int fds [2];
2138
1813# if EV_USE_EVENTFD 2139# if EV_USE_EVENTFD
2140 fds [0] = -1;
1814 evfd = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC); 2141 fds [1] = eventfd (0, EFD_NONBLOCK | EFD_CLOEXEC);
1815 if (evfd < 0 && errno == EINVAL) 2142 if (fds [1] < 0 && errno == EINVAL)
1816 evfd = eventfd (0, 0); 2143 fds [1] = eventfd (0, 0);
1817 2144
1818 if (evfd >= 0) 2145 if (fds [1] < 0)
2146# endif
1819 { 2147 {
2148 while (pipe (fds))
2149 ev_syserr ("(libev) error creating signal/async pipe");
2150
2151 fd_intern (fds [0]);
2152 }
2153
1820 evpipe [0] = -1; 2154 evpipe [0] = fds [0];
1821 fd_intern (evfd); /* doing it twice doesn't hurt */ 2155
1822 ev_io_set (&pipe_w, evfd, EV_READ); 2156 if (evpipe [1] < 0)
2157 evpipe [1] = fds [1]; /* first call, set write fd */
2158 else
2159 {
2160 /* on subsequent calls, do not change evpipe [1] */
2161 /* so that evpipe_write can always rely on its value. */
2162 /* this branch does not do anything sensible on windows, */
2163 /* so must not be executed on windows */
2164
2165 dup2 (fds [1], evpipe [1]);
2166 close (fds [1]);
2167 }
2168
2169 fd_intern (evpipe [1]);
2170
2171 ev_io_set (&pipe_w, evpipe [0] < 0 ? evpipe [1] : evpipe [0], EV_READ);
2172 ev_io_start (EV_A_ &pipe_w);
2173 ev_unref (EV_A); /* watcher should not keep loop alive */
2174 }
2175}
2176
2177inline_speed void
2178evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2179{
2180 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2181
2182 if (expect_true (*flag))
2183 return;
2184
2185 *flag = 1;
2186 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2187
2188 pipe_write_skipped = 1;
2189
2190 ECB_MEMORY_FENCE; /* make sure pipe_write_skipped is visible before we check pipe_write_wanted */
2191
2192 if (pipe_write_wanted)
2193 {
2194 int old_errno;
2195
2196 pipe_write_skipped = 0;
2197 ECB_MEMORY_FENCE_RELEASE;
2198
2199 old_errno = errno; /* save errno because write will clobber it */
2200
2201#if EV_USE_EVENTFD
2202 if (evpipe [0] < 0)
2203 {
2204 uint64_t counter = 1;
2205 write (evpipe [1], &counter, sizeof (uint64_t));
1823 } 2206 }
1824 else 2207 else
1825# endif 2208#endif
1826 { 2209 {
1827 while (pipe (evpipe)) 2210#ifdef _WIN32
1828 ev_syserr ("(libev) error creating signal/async pipe"); 2211 WSABUF buf;
1829 2212 DWORD sent;
1830 fd_intern (evpipe [0]); 2213 buf.buf = &buf;
1831 fd_intern (evpipe [1]); 2214 buf.len = 1;
1832 ev_io_set (&pipe_w, evpipe [0], EV_READ); 2215 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
1833 } 2216#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); 2217 write (evpipe [1], &(evpipe [1]), 1);
2218#endif
1879 } 2219 }
1880 2220
1881 errno = old_errno; 2221 errno = old_errno;
1882 } 2222 }
1883} 2223}
… …
1890 int i; 2230 int i;
1891 2231
1892 if (revents & EV_READ) 2232 if (revents & EV_READ)
1893 { 2233 {
1894#if EV_USE_EVENTFD 2234#if EV_USE_EVENTFD
1895 if (evfd >= 0) 2235 if (evpipe [0] < 0)
1896 { 2236 {
1897 uint64_t counter; 2237 uint64_t counter;
1898 read (evfd, &counter, sizeof (uint64_t)); 2238 read (evpipe [1], &counter, sizeof (uint64_t));
1899 } 2239 }
1900 else 2240 else
1901#endif 2241#endif
1902 { 2242 {
1903 char dummy; 2243 char dummy[4];
1904 /* see discussion in evpipe_write when you think this read should be recv in win32 */ 2244#ifdef _WIN32
2245 WSABUF buf;
2246 DWORD recvd;
2247 DWORD flags = 0;
2248 buf.buf = dummy;
2249 buf.len = sizeof (dummy);
2250 WSARecv (EV_FD_TO_WIN32_HANDLE (evpipe [0]), &buf, 1, &recvd, &flags, 0, 0);
2251#else
1905 read (evpipe [0], &dummy, 1); 2252 read (evpipe [0], &dummy, sizeof (dummy));
2253#endif
1906 } 2254 }
1907 } 2255 }
1908 2256
1909 pipe_write_skipped = 0; 2257 pipe_write_skipped = 0;
2258
2259 ECB_MEMORY_FENCE; /* push out skipped, acquire flags */
1910 2260
1911#if EV_SIGNAL_ENABLE 2261#if EV_SIGNAL_ENABLE
1912 if (sig_pending) 2262 if (sig_pending)
1913 { 2263 {
1914 sig_pending = 0; 2264 sig_pending = 0;
2265
2266 ECB_MEMORY_FENCE;
1915 2267
1916 for (i = EV_NSIG - 1; i--; ) 2268 for (i = EV_NSIG - 1; i--; )
1917 if (expect_false (signals [i].pending)) 2269 if (expect_false (signals [i].pending))
1918 ev_feed_signal_event (EV_A_ i + 1); 2270 ev_feed_signal_event (EV_A_ i + 1);
1919 } 2271 }
… …
1921 2273
1922#if EV_ASYNC_ENABLE 2274#if EV_ASYNC_ENABLE
1923 if (async_pending) 2275 if (async_pending)
1924 { 2276 {
1925 async_pending = 0; 2277 async_pending = 0;
2278
2279 ECB_MEMORY_FENCE;
1926 2280
1927 for (i = asynccnt; i--; ) 2281 for (i = asynccnt; i--; )
1928 if (asyncs [i]->sent) 2282 if (asyncs [i]->sent)
1929 { 2283 {
1930 asyncs [i]->sent = 0; 2284 asyncs [i]->sent = 0;
2285 ECB_MEMORY_FENCE_RELEASE;
1931 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC); 2286 ev_feed_event (EV_A_ asyncs [i], EV_ASYNC);
1932 } 2287 }
1933 } 2288 }
1934#endif 2289#endif
1935} 2290}
1936 2291
1937/*****************************************************************************/ 2292/*****************************************************************************/
1938 2293
1939void 2294void
1940ev_feed_signal (int signum) 2295ev_feed_signal (int signum) EV_THROW
1941{ 2296{
1942#if EV_MULTIPLICITY 2297#if EV_MULTIPLICITY
2298 EV_P;
2299 ECB_MEMORY_FENCE_ACQUIRE;
1943 EV_P = signals [signum - 1].loop; 2300 EV_A = signals [signum - 1].loop;
1944 2301
1945 if (!EV_A) 2302 if (!EV_A)
1946 return; 2303 return;
1947#endif 2304#endif
1948 2305
1949 if (!ev_active (&pipe_w))
1950 return;
1951
1952 signals [signum - 1].pending = 1; 2306 signals [signum - 1].pending = 1;
1953 evpipe_write (EV_A_ &sig_pending); 2307 evpipe_write (EV_A_ &sig_pending);
1954} 2308}
1955 2309
1956static void 2310static void
… …
1962 2316
1963 ev_feed_signal (signum); 2317 ev_feed_signal (signum);
1964} 2318}
1965 2319
1966void noinline 2320void noinline
1967ev_feed_signal_event (EV_P_ int signum) 2321ev_feed_signal_event (EV_P_ int signum) EV_THROW
1968{ 2322{
1969 WL w; 2323 WL w;
1970 2324
1971 if (expect_false (signum <= 0 || signum > EV_NSIG)) 2325 if (expect_false (signum <= 0 || signum >= EV_NSIG))
1972 return; 2326 return;
1973 2327
1974 --signum; 2328 --signum;
1975 2329
1976#if EV_MULTIPLICITY 2330#if EV_MULTIPLICITY
… …
1980 if (expect_false (signals [signum].loop != EV_A)) 2334 if (expect_false (signals [signum].loop != EV_A))
1981 return; 2335 return;
1982#endif 2336#endif
1983 2337
1984 signals [signum].pending = 0; 2338 signals [signum].pending = 0;
2339 ECB_MEMORY_FENCE_RELEASE;
1985 2340
1986 for (w = signals [signum].head; w; w = w->next) 2341 for (w = signals [signum].head; w; w = w->next)
1987 ev_feed_event (EV_A_ (W)w, EV_SIGNAL); 2342 ev_feed_event (EV_A_ (W)w, EV_SIGNAL);
1988} 2343}
1989 2344
… …
2088#if EV_USE_SELECT 2443#if EV_USE_SELECT
2089# include "ev_select.c" 2444# include "ev_select.c"
2090#endif 2445#endif
2091 2446
2092int ecb_cold 2447int ecb_cold
2093ev_version_major (void) 2448ev_version_major (void) EV_THROW
2094{ 2449{
2095 return EV_VERSION_MAJOR; 2450 return EV_VERSION_MAJOR;
2096} 2451}
2097 2452
2098int ecb_cold 2453int ecb_cold
2099ev_version_minor (void) 2454ev_version_minor (void) EV_THROW
2100{ 2455{
2101 return EV_VERSION_MINOR; 2456 return EV_VERSION_MINOR;
2102} 2457}
2103 2458
2104/* return true if we are running with elevated privileges and should ignore env variables */ 2459/* return true if we are running with elevated privileges and should ignore env variables */
… …
2112 || getgid () != getegid (); 2467 || getgid () != getegid ();
2113#endif 2468#endif
2114} 2469}
2115 2470
2116unsigned int ecb_cold 2471unsigned int ecb_cold
2117ev_supported_backends (void) 2472ev_supported_backends (void) EV_THROW
2118{ 2473{
2119 unsigned int flags = 0; 2474 unsigned int flags = 0;
2120 2475
2121 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2476 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2122 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2477 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE;
… …
2126 2481
2127 return flags; 2482 return flags;
2128} 2483}
2129 2484
2130unsigned int ecb_cold 2485unsigned int ecb_cold
2131ev_recommended_backends (void) 2486ev_recommended_backends (void) EV_THROW
2132{ 2487{
2133 unsigned int flags = ev_supported_backends (); 2488 unsigned int flags = ev_supported_backends ();
2134 2489
2135#ifndef __NetBSD__ 2490#ifndef __NetBSD__
2136 /* kqueue is borked on everything but netbsd apparently */ 2491 /* kqueue is borked on everything but netbsd apparently */
… …
2148 2503
2149 return flags; 2504 return flags;
2150} 2505}
2151 2506
2152unsigned int ecb_cold 2507unsigned int ecb_cold
2153ev_embeddable_backends (void) 2508ev_embeddable_backends (void) EV_THROW
2154{ 2509{
2155 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 2510 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2156 2511
2157 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 2512 /* 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 */ 2513 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
… …
2160 2515
2161 return flags; 2516 return flags;
2162} 2517}
2163 2518
2164unsigned int 2519unsigned int
2165ev_backend (EV_P) 2520ev_backend (EV_P) EV_THROW
2166{ 2521{
2167 return backend; 2522 return backend;
2168} 2523}
2169 2524
2170#if EV_FEATURE_API 2525#if EV_FEATURE_API
2171unsigned int 2526unsigned int
2172ev_iteration (EV_P) 2527ev_iteration (EV_P) EV_THROW
2173{ 2528{
2174 return loop_count; 2529 return loop_count;
2175} 2530}
2176 2531
2177unsigned int 2532unsigned int
2178ev_depth (EV_P) 2533ev_depth (EV_P) EV_THROW
2179{ 2534{
2180 return loop_depth; 2535 return loop_depth;
2181} 2536}
2182 2537
2183void 2538void
2184ev_set_io_collect_interval (EV_P_ ev_tstamp interval) 2539ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2185{ 2540{
2186 io_blocktime = interval; 2541 io_blocktime = interval;
2187} 2542}
2188 2543
2189void 2544void
2190ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) 2545ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW
2191{ 2546{
2192 timeout_blocktime = interval; 2547 timeout_blocktime = interval;
2193} 2548}
2194 2549
2195void 2550void
2196ev_set_userdata (EV_P_ void *data) 2551ev_set_userdata (EV_P_ void *data) EV_THROW
2197{ 2552{
2198 userdata = data; 2553 userdata = data;
2199} 2554}
2200 2555
2201void * 2556void *
2202ev_userdata (EV_P) 2557ev_userdata (EV_P) EV_THROW
2203{ 2558{
2204 return userdata; 2559 return userdata;
2205} 2560}
2206 2561
2207void 2562void
2208ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P)) 2563ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW
2209{ 2564{
2210 invoke_cb = invoke_pending_cb; 2565 invoke_cb = invoke_pending_cb;
2211} 2566}
2212 2567
2213void 2568void
2214ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P)) 2569ev_set_loop_release_cb (EV_P_ ev_loop_callback_nothrow release, ev_loop_callback_nothrow acquire) EV_THROW
2215{ 2570{
2216 release_cb = release; 2571 release_cb = release;
2217 acquire_cb = acquire; 2572 acquire_cb = acquire;
2218} 2573}
2219#endif 2574#endif
2220 2575
2221/* initialise a loop structure, must be zero-initialised */ 2576/* initialise a loop structure, must be zero-initialised */
2222static void noinline ecb_cold 2577static void noinline ecb_cold
2223loop_init (EV_P_ unsigned int flags) 2578loop_init (EV_P_ unsigned int flags) EV_THROW
2224{ 2579{
2225 if (!backend) 2580 if (!backend)
2226 { 2581 {
2227 origflags = flags; 2582 origflags = flags;
2228 2583
… …
2273#if EV_ASYNC_ENABLE 2628#if EV_ASYNC_ENABLE
2274 async_pending = 0; 2629 async_pending = 0;
2275#endif 2630#endif
2276 pipe_write_skipped = 0; 2631 pipe_write_skipped = 0;
2277 pipe_write_wanted = 0; 2632 pipe_write_wanted = 0;
2633 evpipe [0] = -1;
2634 evpipe [1] = -1;
2278#if EV_USE_INOTIFY 2635#if EV_USE_INOTIFY
2279 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 2636 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2280#endif 2637#endif
2281#if EV_USE_SIGNALFD 2638#if EV_USE_SIGNALFD
2282 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 2639 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
… …
2333 EV_INVOKE_PENDING; 2690 EV_INVOKE_PENDING;
2334 } 2691 }
2335#endif 2692#endif
2336 2693
2337#if EV_CHILD_ENABLE 2694#if EV_CHILD_ENABLE
2338 if (ev_is_active (&childev)) 2695 if (ev_is_default_loop (EV_A) && ev_is_active (&childev))
2339 { 2696 {
2340 ev_ref (EV_A); /* child watcher */ 2697 ev_ref (EV_A); /* child watcher */
2341 ev_signal_stop (EV_A_ &childev); 2698 ev_signal_stop (EV_A_ &childev);
2342 } 2699 }
2343#endif 2700#endif
… …
2345 if (ev_is_active (&pipe_w)) 2702 if (ev_is_active (&pipe_w))
2346 { 2703 {
2347 /*ev_ref (EV_A);*/ 2704 /*ev_ref (EV_A);*/
2348 /*ev_io_stop (EV_A_ &pipe_w);*/ 2705 /*ev_io_stop (EV_A_ &pipe_w);*/
2349 2706
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]); 2707 if (evpipe [0] >= 0) EV_WIN32_CLOSE_FD (evpipe [0]);
2358 EV_WIN32_CLOSE_FD (evpipe [1]); 2708 if (evpipe [1] >= 0) EV_WIN32_CLOSE_FD (evpipe [1]);
2359 }
2360 } 2709 }
2361 2710
2362#if EV_USE_SIGNALFD 2711#if EV_USE_SIGNALFD
2363 if (ev_is_active (&sigfd_w)) 2712 if (ev_is_active (&sigfd_w))
2364 close (sigfd); 2713 close (sigfd);
… …
2450#endif 2799#endif
2451#if EV_USE_INOTIFY 2800#if EV_USE_INOTIFY
2452 infy_fork (EV_A); 2801 infy_fork (EV_A);
2453#endif 2802#endif
2454 2803
2804#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2455 if (ev_is_active (&pipe_w)) 2805 if (ev_is_active (&pipe_w))
2456 { 2806 {
2457 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 2807 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2458 2808
2459 ev_ref (EV_A); 2809 ev_ref (EV_A);
2460 ev_io_stop (EV_A_ &pipe_w); 2810 ev_io_stop (EV_A_ &pipe_w);
2461 2811
2462#if EV_USE_EVENTFD
2463 if (evfd >= 0)
2464 close (evfd);
2465#endif
2466
2467 if (evpipe [0] >= 0) 2812 if (evpipe [0] >= 0)
2468 {
2469 EV_WIN32_CLOSE_FD (evpipe [0]); 2813 EV_WIN32_CLOSE_FD (evpipe [0]);
2470 EV_WIN32_CLOSE_FD (evpipe [1]);
2471 }
2472 2814
2473#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2474 evpipe_init (EV_A); 2815 evpipe_init (EV_A);
2475 /* now iterate over everything, in case we missed something */ 2816 /* iterate over everything, in case we missed something before */
2476 pipecb (EV_A_ &pipe_w, EV_READ); 2817 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
2477#endif
2478 } 2818 }
2819#endif
2479 2820
2480 postfork = 0; 2821 postfork = 0;
2481} 2822}
2482 2823
2483#if EV_MULTIPLICITY 2824#if EV_MULTIPLICITY
2484 2825
2485struct ev_loop * ecb_cold 2826struct ev_loop * ecb_cold
2486ev_loop_new (unsigned int flags) 2827ev_loop_new (unsigned int flags) EV_THROW
2487{ 2828{
2488 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 2829 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2489 2830
2490 memset (EV_A, 0, sizeof (struct ev_loop)); 2831 memset (EV_A, 0, sizeof (struct ev_loop));
2491 loop_init (EV_A_ flags); 2832 loop_init (EV_A_ flags);
… …
2535} 2876}
2536#endif 2877#endif
2537 2878
2538#if EV_FEATURE_API 2879#if EV_FEATURE_API
2539void ecb_cold 2880void ecb_cold
2540ev_verify (EV_P) 2881ev_verify (EV_P) EV_THROW
2541{ 2882{
2542#if EV_VERIFY 2883#if EV_VERIFY
2543 int i; 2884 int i;
2544 WL w; 2885 WL w, w2;
2545 2886
2546 assert (activecnt >= -1); 2887 assert (activecnt >= -1);
2547 2888
2548 assert (fdchangemax >= fdchangecnt); 2889 assert (fdchangemax >= fdchangecnt);
2549 for (i = 0; i < fdchangecnt; ++i) 2890 for (i = 0; i < fdchangecnt; ++i)
2550 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0)); 2891 assert (("libev: negative fd in fdchanges", fdchanges [i] >= 0));
2551 2892
2552 assert (anfdmax >= 0); 2893 assert (anfdmax >= 0);
2553 for (i = 0; i < anfdmax; ++i) 2894 for (i = 0; i < anfdmax; ++i)
2895 {
2896 int j = 0;
2897
2554 for (w = anfds [i].head; w; w = w->next) 2898 for (w = w2 = anfds [i].head; w; w = w->next)
2555 { 2899 {
2556 verify_watcher (EV_A_ (W)w); 2900 verify_watcher (EV_A_ (W)w);
2901
2902 if (j++ & 1)
2903 {
2904 assert (("libev: io watcher list contains a loop", w != w2));
2905 w2 = w2->next;
2906 }
2907
2557 assert (("libev: inactive fd watcher on anfd list", ev_active (w) == 1)); 2908 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)); 2909 assert (("libev: fd mismatch between watcher and anfd", ((ev_io *)w)->fd == i));
2559 } 2910 }
2911 }
2560 2912
2561 assert (timermax >= timercnt); 2913 assert (timermax >= timercnt);
2562 verify_heap (EV_A_ timers, timercnt); 2914 verify_heap (EV_A_ timers, timercnt);
2563 2915
2564#if EV_PERIODIC_ENABLE 2916#if EV_PERIODIC_ENABLE
… …
2614#if EV_MULTIPLICITY 2966#if EV_MULTIPLICITY
2615struct ev_loop * ecb_cold 2967struct ev_loop * ecb_cold
2616#else 2968#else
2617int 2969int
2618#endif 2970#endif
2619ev_default_loop (unsigned int flags) 2971ev_default_loop (unsigned int flags) EV_THROW
2620{ 2972{
2621 if (!ev_default_loop_ptr) 2973 if (!ev_default_loop_ptr)
2622 { 2974 {
2623#if EV_MULTIPLICITY 2975#if EV_MULTIPLICITY
2624 EV_P = ev_default_loop_ptr = &default_loop_struct; 2976 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
2643 2995
2644 return ev_default_loop_ptr; 2996 return ev_default_loop_ptr;
2645} 2997}
2646 2998
2647void 2999void
2648ev_loop_fork (EV_P) 3000ev_loop_fork (EV_P) EV_THROW
2649{ 3001{
2650 postfork = 1; /* must be in line with ev_default_fork */ 3002 postfork = 1;
2651} 3003}
2652 3004
2653/*****************************************************************************/ 3005/*****************************************************************************/
2654 3006
2655void 3007void
… …
2657{ 3009{
2658 EV_CB_INVOKE ((W)w, revents); 3010 EV_CB_INVOKE ((W)w, revents);
2659} 3011}
2660 3012
2661unsigned int 3013unsigned int
2662ev_pending_count (EV_P) 3014ev_pending_count (EV_P) EV_THROW
2663{ 3015{
2664 int pri; 3016 int pri;
2665 unsigned int count = 0; 3017 unsigned int count = 0;
2666 3018
2667 for (pri = NUMPRI; pri--; ) 3019 for (pri = NUMPRI; pri--; )
… …
2671} 3023}
2672 3024
2673void noinline 3025void noinline
2674ev_invoke_pending (EV_P) 3026ev_invoke_pending (EV_P)
2675{ 3027{
2676 int pri; 3028 pendingpri = NUMPRI;
2677 3029
2678 for (pri = NUMPRI; pri--; ) 3030 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */
3031 {
3032 --pendingpri;
3033
2679 while (pendingcnt [pri]) 3034 while (pendingcnt [pendingpri])
2680 { 3035 {
2681 ANPENDING *p = pendings [pri] + --pendingcnt [pri]; 3036 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
2682 3037
2683 p->w->pending = 0; 3038 p->w->pending = 0;
2684 EV_CB_INVOKE (p->w, p->events); 3039 EV_CB_INVOKE (p->w, p->events);
2685 EV_FREQUENT_CHECK; 3040 EV_FREQUENT_CHECK;
2686 } 3041 }
3042 }
2687} 3043}
2688 3044
2689#if EV_IDLE_ENABLE 3045#if EV_IDLE_ENABLE
2690/* make idle watchers pending. this handles the "call-idle */ 3046/* make idle watchers pending. this handles the "call-idle */
2691/* only when higher priorities are idle" logic */ 3047/* only when higher priorities are idle" logic */
… …
2781{ 3137{
2782 EV_FREQUENT_CHECK; 3138 EV_FREQUENT_CHECK;
2783 3139
2784 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now) 3140 while (periodiccnt && ANHE_at (periodics [HEAP0]) < ev_rt_now)
2785 { 3141 {
2786 int feed_count = 0;
2787
2788 do 3142 do
2789 { 3143 {
2790 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]); 3144 ev_periodic *w = (ev_periodic *)ANHE_w (periodics [HEAP0]);
2791 3145
2792 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/ 3146 /*assert (("libev: inactive timer on periodic heap detected", ev_is_active (w)));*/
… …
2926 3280
2927 mn_now = ev_rt_now; 3281 mn_now = ev_rt_now;
2928 } 3282 }
2929} 3283}
2930 3284
2931void 3285int
2932ev_run (EV_P_ int flags) 3286ev_run (EV_P_ int flags)
2933{ 3287{
2934#if EV_FEATURE_API 3288#if EV_FEATURE_API
2935 ++loop_depth; 3289 ++loop_depth;
2936#endif 3290#endif
… …
3051 backend_poll (EV_A_ waittime); 3405 backend_poll (EV_A_ waittime);
3052 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */ 3406 assert ((loop_done = EVBREAK_CANCEL, 1)); /* assert for side effect */
3053 3407
3054 pipe_write_wanted = 0; /* just an optimisation, no fence needed */ 3408 pipe_write_wanted = 0; /* just an optimisation, no fence needed */
3055 3409
3410 ECB_MEMORY_FENCE_ACQUIRE;
3056 if (pipe_write_skipped) 3411 if (pipe_write_skipped)
3057 { 3412 {
3058 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 3413 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); 3414 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3060 } 3415 }
… …
3093 loop_done = EVBREAK_CANCEL; 3448 loop_done = EVBREAK_CANCEL;
3094 3449
3095#if EV_FEATURE_API 3450#if EV_FEATURE_API
3096 --loop_depth; 3451 --loop_depth;
3097#endif 3452#endif
3453
3454 return activecnt;
3098} 3455}
3099 3456
3100void 3457void
3101ev_break (EV_P_ int how) 3458ev_break (EV_P_ int how) EV_THROW
3102{ 3459{
3103 loop_done = how; 3460 loop_done = how;
3104} 3461}
3105 3462
3106void 3463void
3107ev_ref (EV_P) 3464ev_ref (EV_P) EV_THROW
3108{ 3465{
3109 ++activecnt; 3466 ++activecnt;
3110} 3467}
3111 3468
3112void 3469void
3113ev_unref (EV_P) 3470ev_unref (EV_P) EV_THROW
3114{ 3471{
3115 --activecnt; 3472 --activecnt;
3116} 3473}
3117 3474
3118void 3475void
3119ev_now_update (EV_P) 3476ev_now_update (EV_P) EV_THROW
3120{ 3477{
3121 time_update (EV_A_ 1e100); 3478 time_update (EV_A_ 1e100);
3122} 3479}
3123 3480
3124void 3481void
3125ev_suspend (EV_P) 3482ev_suspend (EV_P) EV_THROW
3126{ 3483{
3127 ev_now_update (EV_A); 3484 ev_now_update (EV_A);
3128} 3485}
3129 3486
3130void 3487void
3131ev_resume (EV_P) 3488ev_resume (EV_P) EV_THROW
3132{ 3489{
3133 ev_tstamp mn_prev = mn_now; 3490 ev_tstamp mn_prev = mn_now;
3134 3491
3135 ev_now_update (EV_A); 3492 ev_now_update (EV_A);
3136 timers_reschedule (EV_A_ mn_now - mn_prev); 3493 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3175 w->pending = 0; 3532 w->pending = 0;
3176 } 3533 }
3177} 3534}
3178 3535
3179int 3536int
3180ev_clear_pending (EV_P_ void *w) 3537ev_clear_pending (EV_P_ void *w) EV_THROW
3181{ 3538{
3182 W w_ = (W)w; 3539 W w_ = (W)w;
3183 int pending = w_->pending; 3540 int pending = w_->pending;
3184 3541
3185 if (expect_true (pending)) 3542 if (expect_true (pending))
… …
3218} 3575}
3219 3576
3220/*****************************************************************************/ 3577/*****************************************************************************/
3221 3578
3222void noinline 3579void noinline
3223ev_io_start (EV_P_ ev_io *w) 3580ev_io_start (EV_P_ ev_io *w) EV_THROW
3224{ 3581{
3225 int fd = w->fd; 3582 int fd = w->fd;
3226 3583
3227 if (expect_false (ev_is_active (w))) 3584 if (expect_false (ev_is_active (w)))
3228 return; 3585 return;
… …
3234 3591
3235 ev_start (EV_A_ (W)w, 1); 3592 ev_start (EV_A_ (W)w, 1);
3236 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 3593 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero);
3237 wlist_add (&anfds[fd].head, (WL)w); 3594 wlist_add (&anfds[fd].head, (WL)w);
3238 3595
3596 /* common bug, apparently */
3597 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3598
3239 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY); 3599 fd_change (EV_A_ fd, w->events & EV__IOFDSET | EV_ANFD_REIFY);
3240 w->events &= ~EV__IOFDSET; 3600 w->events &= ~EV__IOFDSET;
3241 3601
3242 EV_FREQUENT_CHECK; 3602 EV_FREQUENT_CHECK;
3243} 3603}
3244 3604
3245void noinline 3605void noinline
3246ev_io_stop (EV_P_ ev_io *w) 3606ev_io_stop (EV_P_ ev_io *w) EV_THROW
3247{ 3607{
3248 clear_pending (EV_A_ (W)w); 3608 clear_pending (EV_A_ (W)w);
3249 if (expect_false (!ev_is_active (w))) 3609 if (expect_false (!ev_is_active (w)))
3250 return; 3610 return;
3251 3611
… …
3260 3620
3261 EV_FREQUENT_CHECK; 3621 EV_FREQUENT_CHECK;
3262} 3622}
3263 3623
3264void noinline 3624void noinline
3265ev_timer_start (EV_P_ ev_timer *w) 3625ev_timer_start (EV_P_ ev_timer *w) EV_THROW
3266{ 3626{
3267 if (expect_false (ev_is_active (w))) 3627 if (expect_false (ev_is_active (w)))
3268 return; 3628 return;
3269 3629
3270 ev_at (w) += mn_now; 3630 ev_at (w) += mn_now;
… …
3284 3644
3285 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 3645 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3286} 3646}
3287 3647
3288void noinline 3648void noinline
3289ev_timer_stop (EV_P_ ev_timer *w) 3649ev_timer_stop (EV_P_ ev_timer *w) EV_THROW
3290{ 3650{
3291 clear_pending (EV_A_ (W)w); 3651 clear_pending (EV_A_ (W)w);
3292 if (expect_false (!ev_is_active (w))) 3652 if (expect_false (!ev_is_active (w)))
3293 return; 3653 return;
3294 3654
… …
3314 3674
3315 EV_FREQUENT_CHECK; 3675 EV_FREQUENT_CHECK;
3316} 3676}
3317 3677
3318void noinline 3678void noinline
3319ev_timer_again (EV_P_ ev_timer *w) 3679ev_timer_again (EV_P_ ev_timer *w) EV_THROW
3320{ 3680{
3321 EV_FREQUENT_CHECK; 3681 EV_FREQUENT_CHECK;
3322 3682
3323 clear_pending (EV_A_ (W)w); 3683 clear_pending (EV_A_ (W)w);
3324 3684
… …
3341 3701
3342 EV_FREQUENT_CHECK; 3702 EV_FREQUENT_CHECK;
3343} 3703}
3344 3704
3345ev_tstamp 3705ev_tstamp
3346ev_timer_remaining (EV_P_ ev_timer *w) 3706ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW
3347{ 3707{
3348 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 3708 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.);
3349} 3709}
3350 3710
3351#if EV_PERIODIC_ENABLE 3711#if EV_PERIODIC_ENABLE
3352void noinline 3712void noinline
3353ev_periodic_start (EV_P_ ev_periodic *w) 3713ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW
3354{ 3714{
3355 if (expect_false (ev_is_active (w))) 3715 if (expect_false (ev_is_active (w)))
3356 return; 3716 return;
3357 3717
3358 if (w->reschedule_cb) 3718 if (w->reschedule_cb)
… …
3378 3738
3379 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 3739 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3380} 3740}
3381 3741
3382void noinline 3742void noinline
3383ev_periodic_stop (EV_P_ ev_periodic *w) 3743ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW
3384{ 3744{
3385 clear_pending (EV_A_ (W)w); 3745 clear_pending (EV_A_ (W)w);
3386 if (expect_false (!ev_is_active (w))) 3746 if (expect_false (!ev_is_active (w)))
3387 return; 3747 return;
3388 3748
… …
3406 3766
3407 EV_FREQUENT_CHECK; 3767 EV_FREQUENT_CHECK;
3408} 3768}
3409 3769
3410void noinline 3770void noinline
3411ev_periodic_again (EV_P_ ev_periodic *w) 3771ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW
3412{ 3772{
3413 /* TODO: use adjustheap and recalculation */ 3773 /* TODO: use adjustheap and recalculation */
3414 ev_periodic_stop (EV_A_ w); 3774 ev_periodic_stop (EV_A_ w);
3415 ev_periodic_start (EV_A_ w); 3775 ev_periodic_start (EV_A_ w);
3416} 3776}
… …
3421#endif 3781#endif
3422 3782
3423#if EV_SIGNAL_ENABLE 3783#if EV_SIGNAL_ENABLE
3424 3784
3425void noinline 3785void noinline
3426ev_signal_start (EV_P_ ev_signal *w) 3786ev_signal_start (EV_P_ ev_signal *w) EV_THROW
3427{ 3787{
3428 if (expect_false (ev_is_active (w))) 3788 if (expect_false (ev_is_active (w)))
3429 return; 3789 return;
3430 3790
3431 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 3791 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
… …
3433#if EV_MULTIPLICITY 3793#if EV_MULTIPLICITY
3434 assert (("libev: a signal must not be attached to two different loops", 3794 assert (("libev: a signal must not be attached to two different loops",
3435 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop)); 3795 !signals [w->signum - 1].loop || signals [w->signum - 1].loop == loop));
3436 3796
3437 signals [w->signum - 1].loop = EV_A; 3797 signals [w->signum - 1].loop = EV_A;
3798 ECB_MEMORY_FENCE_RELEASE;
3438#endif 3799#endif
3439 3800
3440 EV_FREQUENT_CHECK; 3801 EV_FREQUENT_CHECK;
3441 3802
3442#if EV_USE_SIGNALFD 3803#if EV_USE_SIGNALFD
… …
3502 3863
3503 EV_FREQUENT_CHECK; 3864 EV_FREQUENT_CHECK;
3504} 3865}
3505 3866
3506void noinline 3867void noinline
3507ev_signal_stop (EV_P_ ev_signal *w) 3868ev_signal_stop (EV_P_ ev_signal *w) EV_THROW
3508{ 3869{
3509 clear_pending (EV_A_ (W)w); 3870 clear_pending (EV_A_ (W)w);
3510 if (expect_false (!ev_is_active (w))) 3871 if (expect_false (!ev_is_active (w)))
3511 return; 3872 return;
3512 3873
… …
3543#endif 3904#endif
3544 3905
3545#if EV_CHILD_ENABLE 3906#if EV_CHILD_ENABLE
3546 3907
3547void 3908void
3548ev_child_start (EV_P_ ev_child *w) 3909ev_child_start (EV_P_ ev_child *w) EV_THROW
3549{ 3910{
3550#if EV_MULTIPLICITY 3911#if EV_MULTIPLICITY
3551 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 3912 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3552#endif 3913#endif
3553 if (expect_false (ev_is_active (w))) 3914 if (expect_false (ev_is_active (w)))
… …
3560 3921
3561 EV_FREQUENT_CHECK; 3922 EV_FREQUENT_CHECK;
3562} 3923}
3563 3924
3564void 3925void
3565ev_child_stop (EV_P_ ev_child *w) 3926ev_child_stop (EV_P_ ev_child *w) EV_THROW
3566{ 3927{
3567 clear_pending (EV_A_ (W)w); 3928 clear_pending (EV_A_ (W)w);
3568 if (expect_false (!ev_is_active (w))) 3929 if (expect_false (!ev_is_active (w)))
3569 return; 3930 return;
3570 3931
… …
3597# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 3958# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
3598 3959
3599static void noinline 3960static void noinline
3600infy_add (EV_P_ ev_stat *w) 3961infy_add (EV_P_ ev_stat *w)
3601{ 3962{
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); 3963 w->wd = inotify_add_watch (fs_fd, w->path,
3964 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
3965 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
3966 | IN_DONT_FOLLOW | IN_MASK_ADD);
3603 3967
3604 if (w->wd >= 0) 3968 if (w->wd >= 0)
3605 { 3969 {
3606 struct statfs sfs; 3970 struct statfs sfs;
3607 3971
… …
3611 3975
3612 if (!fs_2625) 3976 if (!fs_2625)
3613 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL; 3977 w->timer.repeat = w->interval ? w->interval : DEF_STAT_INTERVAL;
3614 else if (!statfs (w->path, &sfs) 3978 else if (!statfs (w->path, &sfs)
3615 && (sfs.f_type == 0x1373 /* devfs */ 3979 && (sfs.f_type == 0x1373 /* devfs */
3980 || sfs.f_type == 0x4006 /* fat */
3981 || sfs.f_type == 0x4d44 /* msdos */
3616 || sfs.f_type == 0xEF53 /* ext2/3 */ 3982 || sfs.f_type == 0xEF53 /* ext2/3 */
3983 || sfs.f_type == 0x72b6 /* jffs2 */
3984 || sfs.f_type == 0x858458f6 /* ramfs */
3985 || sfs.f_type == 0x5346544e /* ntfs */
3617 || sfs.f_type == 0x3153464a /* jfs */ 3986 || sfs.f_type == 0x3153464a /* jfs */
3987 || sfs.f_type == 0x9123683e /* btrfs */
3618 || sfs.f_type == 0x52654973 /* reiser3 */ 3988 || sfs.f_type == 0x52654973 /* reiser3 */
3619 || sfs.f_type == 0x01021994 /* tempfs */ 3989 || sfs.f_type == 0x01021994 /* tmpfs */
3620 || sfs.f_type == 0x58465342 /* xfs */)) 3990 || sfs.f_type == 0x58465342 /* xfs */))
3621 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */ 3991 w->timer.repeat = 0.; /* filesystem is local, kernel new enough */
3622 else 3992 else
3623 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */ 3993 w->timer.repeat = w->interval ? w->interval : NFS_STAT_INTERVAL; /* remote, use reduced frequency */
3624 } 3994 }
… …
3737} 4107}
3738 4108
3739inline_size int 4109inline_size int
3740infy_newfd (void) 4110infy_newfd (void)
3741{ 4111{
3742#if defined (IN_CLOEXEC) && defined (IN_NONBLOCK) 4112#if defined IN_CLOEXEC && defined IN_NONBLOCK
3743 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK); 4113 int fd = inotify_init1 (IN_CLOEXEC | IN_NONBLOCK);
3744 if (fd >= 0) 4114 if (fd >= 0)
3745 return fd; 4115 return fd;
3746#endif 4116#endif
3747 return inotify_init (); 4117 return inotify_init ();
… …
3822#else 4192#else
3823# define EV_LSTAT(p,b) lstat (p, b) 4193# define EV_LSTAT(p,b) lstat (p, b)
3824#endif 4194#endif
3825 4195
3826void 4196void
3827ev_stat_stat (EV_P_ ev_stat *w) 4197ev_stat_stat (EV_P_ ev_stat *w) EV_THROW
3828{ 4198{
3829 if (lstat (w->path, &w->attr) < 0) 4199 if (lstat (w->path, &w->attr) < 0)
3830 w->attr.st_nlink = 0; 4200 w->attr.st_nlink = 0;
3831 else if (!w->attr.st_nlink) 4201 else if (!w->attr.st_nlink)
3832 w->attr.st_nlink = 1; 4202 w->attr.st_nlink = 1;
… …
3871 ev_feed_event (EV_A_ w, EV_STAT); 4241 ev_feed_event (EV_A_ w, EV_STAT);
3872 } 4242 }
3873} 4243}
3874 4244
3875void 4245void
3876ev_stat_start (EV_P_ ev_stat *w) 4246ev_stat_start (EV_P_ ev_stat *w) EV_THROW
3877{ 4247{
3878 if (expect_false (ev_is_active (w))) 4248 if (expect_false (ev_is_active (w)))
3879 return; 4249 return;
3880 4250
3881 ev_stat_stat (EV_A_ w); 4251 ev_stat_stat (EV_A_ w);
… …
3902 4272
3903 EV_FREQUENT_CHECK; 4273 EV_FREQUENT_CHECK;
3904} 4274}
3905 4275
3906void 4276void
3907ev_stat_stop (EV_P_ ev_stat *w) 4277ev_stat_stop (EV_P_ ev_stat *w) EV_THROW
3908{ 4278{
3909 clear_pending (EV_A_ (W)w); 4279 clear_pending (EV_A_ (W)w);
3910 if (expect_false (!ev_is_active (w))) 4280 if (expect_false (!ev_is_active (w)))
3911 return; 4281 return;
3912 4282
… …
3928} 4298}
3929#endif 4299#endif
3930 4300
3931#if EV_IDLE_ENABLE 4301#if EV_IDLE_ENABLE
3932void 4302void
3933ev_idle_start (EV_P_ ev_idle *w) 4303ev_idle_start (EV_P_ ev_idle *w) EV_THROW
3934{ 4304{
3935 if (expect_false (ev_is_active (w))) 4305 if (expect_false (ev_is_active (w)))
3936 return; 4306 return;
3937 4307
3938 pri_adjust (EV_A_ (W)w); 4308 pri_adjust (EV_A_ (W)w);
… …
3951 4321
3952 EV_FREQUENT_CHECK; 4322 EV_FREQUENT_CHECK;
3953} 4323}
3954 4324
3955void 4325void
3956ev_idle_stop (EV_P_ ev_idle *w) 4326ev_idle_stop (EV_P_ ev_idle *w) EV_THROW
3957{ 4327{
3958 clear_pending (EV_A_ (W)w); 4328 clear_pending (EV_A_ (W)w);
3959 if (expect_false (!ev_is_active (w))) 4329 if (expect_false (!ev_is_active (w)))
3960 return; 4330 return;
3961 4331
… …
3975} 4345}
3976#endif 4346#endif
3977 4347
3978#if EV_PREPARE_ENABLE 4348#if EV_PREPARE_ENABLE
3979void 4349void
3980ev_prepare_start (EV_P_ ev_prepare *w) 4350ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW
3981{ 4351{
3982 if (expect_false (ev_is_active (w))) 4352 if (expect_false (ev_is_active (w)))
3983 return; 4353 return;
3984 4354
3985 EV_FREQUENT_CHECK; 4355 EV_FREQUENT_CHECK;
… …
3990 4360
3991 EV_FREQUENT_CHECK; 4361 EV_FREQUENT_CHECK;
3992} 4362}
3993 4363
3994void 4364void
3995ev_prepare_stop (EV_P_ ev_prepare *w) 4365ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW
3996{ 4366{
3997 clear_pending (EV_A_ (W)w); 4367 clear_pending (EV_A_ (W)w);
3998 if (expect_false (!ev_is_active (w))) 4368 if (expect_false (!ev_is_active (w)))
3999 return; 4369 return;
4000 4370
… …
4013} 4383}
4014#endif 4384#endif
4015 4385
4016#if EV_CHECK_ENABLE 4386#if EV_CHECK_ENABLE
4017void 4387void
4018ev_check_start (EV_P_ ev_check *w) 4388ev_check_start (EV_P_ ev_check *w) EV_THROW
4019{ 4389{
4020 if (expect_false (ev_is_active (w))) 4390 if (expect_false (ev_is_active (w)))
4021 return; 4391 return;
4022 4392
4023 EV_FREQUENT_CHECK; 4393 EV_FREQUENT_CHECK;
… …
4028 4398
4029 EV_FREQUENT_CHECK; 4399 EV_FREQUENT_CHECK;
4030} 4400}
4031 4401
4032void 4402void
4033ev_check_stop (EV_P_ ev_check *w) 4403ev_check_stop (EV_P_ ev_check *w) EV_THROW
4034{ 4404{
4035 clear_pending (EV_A_ (W)w); 4405 clear_pending (EV_A_ (W)w);
4036 if (expect_false (!ev_is_active (w))) 4406 if (expect_false (!ev_is_active (w)))
4037 return; 4407 return;
4038 4408
… …
4051} 4421}
4052#endif 4422#endif
4053 4423
4054#if EV_EMBED_ENABLE 4424#if EV_EMBED_ENABLE
4055void noinline 4425void noinline
4056ev_embed_sweep (EV_P_ ev_embed *w) 4426ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW
4057{ 4427{
4058 ev_run (w->other, EVRUN_NOWAIT); 4428 ev_run (w->other, EVRUN_NOWAIT);
4059} 4429}
4060 4430
4061static void 4431static void
… …
4109 ev_idle_stop (EV_A_ idle); 4479 ev_idle_stop (EV_A_ idle);
4110} 4480}
4111#endif 4481#endif
4112 4482
4113void 4483void
4114ev_embed_start (EV_P_ ev_embed *w) 4484ev_embed_start (EV_P_ ev_embed *w) EV_THROW
4115{ 4485{
4116 if (expect_false (ev_is_active (w))) 4486 if (expect_false (ev_is_active (w)))
4117 return; 4487 return;
4118 4488
4119 { 4489 {
… …
4140 4510
4141 EV_FREQUENT_CHECK; 4511 EV_FREQUENT_CHECK;
4142} 4512}
4143 4513
4144void 4514void
4145ev_embed_stop (EV_P_ ev_embed *w) 4515ev_embed_stop (EV_P_ ev_embed *w) EV_THROW
4146{ 4516{
4147 clear_pending (EV_A_ (W)w); 4517 clear_pending (EV_A_ (W)w);
4148 if (expect_false (!ev_is_active (w))) 4518 if (expect_false (!ev_is_active (w)))
4149 return; 4519 return;
4150 4520
… …
4160} 4530}
4161#endif 4531#endif
4162 4532
4163#if EV_FORK_ENABLE 4533#if EV_FORK_ENABLE
4164void 4534void
4165ev_fork_start (EV_P_ ev_fork *w) 4535ev_fork_start (EV_P_ ev_fork *w) EV_THROW
4166{ 4536{
4167 if (expect_false (ev_is_active (w))) 4537 if (expect_false (ev_is_active (w)))
4168 return; 4538 return;
4169 4539
4170 EV_FREQUENT_CHECK; 4540 EV_FREQUENT_CHECK;
… …
4175 4545
4176 EV_FREQUENT_CHECK; 4546 EV_FREQUENT_CHECK;
4177} 4547}
4178 4548
4179void 4549void
4180ev_fork_stop (EV_P_ ev_fork *w) 4550ev_fork_stop (EV_P_ ev_fork *w) EV_THROW
4181{ 4551{
4182 clear_pending (EV_A_ (W)w); 4552 clear_pending (EV_A_ (W)w);
4183 if (expect_false (!ev_is_active (w))) 4553 if (expect_false (!ev_is_active (w)))
4184 return; 4554 return;
4185 4555
… …
4198} 4568}
4199#endif 4569#endif
4200 4570
4201#if EV_CLEANUP_ENABLE 4571#if EV_CLEANUP_ENABLE
4202void 4572void
4203ev_cleanup_start (EV_P_ ev_cleanup *w) 4573ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW
4204{ 4574{
4205 if (expect_false (ev_is_active (w))) 4575 if (expect_false (ev_is_active (w)))
4206 return; 4576 return;
4207 4577
4208 EV_FREQUENT_CHECK; 4578 EV_FREQUENT_CHECK;
… …
4215 ev_unref (EV_A); 4585 ev_unref (EV_A);
4216 EV_FREQUENT_CHECK; 4586 EV_FREQUENT_CHECK;
4217} 4587}
4218 4588
4219void 4589void
4220ev_cleanup_stop (EV_P_ ev_cleanup *w) 4590ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW
4221{ 4591{
4222 clear_pending (EV_A_ (W)w); 4592 clear_pending (EV_A_ (W)w);
4223 if (expect_false (!ev_is_active (w))) 4593 if (expect_false (!ev_is_active (w)))
4224 return; 4594 return;
4225 4595
… …
4239} 4609}
4240#endif 4610#endif
4241 4611
4242#if EV_ASYNC_ENABLE 4612#if EV_ASYNC_ENABLE
4243void 4613void
4244ev_async_start (EV_P_ ev_async *w) 4614ev_async_start (EV_P_ ev_async *w) EV_THROW
4245{ 4615{
4246 if (expect_false (ev_is_active (w))) 4616 if (expect_false (ev_is_active (w)))
4247 return; 4617 return;
4248 4618
4249 w->sent = 0; 4619 w->sent = 0;
… …
4258 4628
4259 EV_FREQUENT_CHECK; 4629 EV_FREQUENT_CHECK;
4260} 4630}
4261 4631
4262void 4632void
4263ev_async_stop (EV_P_ ev_async *w) 4633ev_async_stop (EV_P_ ev_async *w) EV_THROW
4264{ 4634{
4265 clear_pending (EV_A_ (W)w); 4635 clear_pending (EV_A_ (W)w);
4266 if (expect_false (!ev_is_active (w))) 4636 if (expect_false (!ev_is_active (w)))
4267 return; 4637 return;
4268 4638
… …
4279 4649
4280 EV_FREQUENT_CHECK; 4650 EV_FREQUENT_CHECK;
4281} 4651}
4282 4652
4283void 4653void
4284ev_async_send (EV_P_ ev_async *w) 4654ev_async_send (EV_P_ ev_async *w) EV_THROW
4285{ 4655{
4286 w->sent = 1; 4656 w->sent = 1;
4287 evpipe_write (EV_A_ &async_pending); 4657 evpipe_write (EV_A_ &async_pending);
4288} 4658}
4289#endif 4659#endif
… …
4326 4696
4327 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 4697 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4328} 4698}
4329 4699
4330void 4700void
4331ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) 4701ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW
4332{ 4702{
4333 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 4703 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4334 4704
4335 if (expect_false (!once)) 4705 if (expect_false (!once))
4336 { 4706 {
… …
4358 4728
4359/*****************************************************************************/ 4729/*****************************************************************************/
4360 4730
4361#if EV_WALK_ENABLE 4731#if EV_WALK_ENABLE
4362void ecb_cold 4732void ecb_cold
4363ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) 4733ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW
4364{ 4734{
4365 int i, j; 4735 int i, j;
4366 ev_watcher_list *wl, *wn; 4736 ev_watcher_list *wl, *wn;
4367 4737
4368 if (types & (EV_IO | EV_EMBED)) 4738 if (types & (EV_IO | EV_EMBED))

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