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Comparing libev/ev.c (file contents):
Revision 1.483 by root, Tue Jul 31 04:45:58 2018 UTC vs.
Revision 1.523 by root, Tue Jan 21 23:52:35 2020 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 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 *
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
190# endif
191
165#endif 192#endif
166 193
167/* OS X, in its infinite idiocy, actually HARDCODES 194/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains, 195 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were 196 * OS X engineers apparently have a vacuum. Or maybe they were
… …
315 342
316#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
317# define EV_USE_PORT 0 344# define EV_USE_PORT 0
318#endif 345#endif
319 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
320#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
321# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
322# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
323# else 366# else
324# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
344#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
345# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
346# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
347# else 390# else
348# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
392# endif
393#endif
394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
349# endif 400# endif
350#endif 401#endif
351 402
352#if 0 /* debugging */ 403#if 0 /* debugging */
353# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
389# include <sys/syscall.h> 440# include <sys/syscall.h>
390# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
391# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
392# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
393# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
394# else 446# else
395# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
396# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
397# endif 449# endif
398#endif 450#endif
… …
412#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
413# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
414# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
415#endif 467#endif
416 468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
475#endif
476
417#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
418/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
419# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
420# include <sys/select.h> 480# include <sys/select.h>
481# endif
482#endif
483
484#if EV_USE_LINUXAIO
485# include <sys/syscall.h>
486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
489# undef EV_USE_LINUXAIO
490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
421# endif 506# endif
422#endif 507#endif
423 508
424#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
425# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
430# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
431# endif 516# endif
432#endif 517#endif
433 518
434#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
435/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
436# include <stdint.h> 521# include <stdint.h>
437# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
438# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
439# endif 524# endif
440# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
446# endif 531# endif
447EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
448#endif 533#endif
449 534
450#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
451/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
452# include <stdint.h> 537# include <stdint.h>
453# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
454# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
455# endif 540# endif
456# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
458# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
459# else 544# else
460# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
461# endif 546# endif
462# endif 547# endif
463EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
464 549
465struct signalfd_siginfo 550struct signalfd_siginfo
466{ 551{
467 uint32_t ssi_signo; 552 uint32_t ssi_signo;
468 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
469}; 554};
470#endif 555#endif
471 556
472/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
473 568
474#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
475# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
476#else 571#else
477# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
482 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
483 */ 578 */
484#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
486 581
487#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
488#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
584#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
489 585
586/* find a portable timestamp that is "always" in the future but fits into time_t.
587 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
588 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
589#define EV_TSTAMP_HUGE \
590 (sizeof (time_t) >= 8 ? 10000000000000. \
591 : 0 < (time_t)4294967295 ? 4294967295. \
592 : 2147483647.) \
593
594#ifndef EV_TS_CONST
595# define EV_TS_CONST(nv) nv
596# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
597# define EV_TS_FROM_USEC(us) us * 1e-6
490#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 598# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
491#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 599# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
600# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
601# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
602#endif
492 603
493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 604/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
494/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
495/* 606/*
496 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
… …
534 645
535#ifndef ECB_H 646#ifndef ECB_H
536#define ECB_H 647#define ECB_H
537 648
538/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005 650#define ECB_VERSION 0x00010008
651
652#include <string.h> /* for memcpy */
540 653
541#ifdef _WIN32 654#ifdef _WIN32
542 typedef signed char int8_t; 655 typedef signed char int8_t;
543 typedef unsigned char uint8_t; 656 typedef unsigned char uint8_t;
657 typedef signed char int_fast8_t;
658 typedef unsigned char uint_fast8_t;
544 typedef signed short int16_t; 659 typedef signed short int16_t;
545 typedef unsigned short uint16_t; 660 typedef unsigned short uint16_t;
661 typedef signed int int_fast16_t;
662 typedef unsigned int uint_fast16_t;
546 typedef signed int int32_t; 663 typedef signed int int32_t;
547 typedef unsigned int uint32_t; 664 typedef unsigned int uint32_t;
665 typedef signed int int_fast32_t;
666 typedef unsigned int uint_fast32_t;
548 #if __GNUC__ 667 #if __GNUC__
549 typedef signed long long int64_t; 668 typedef signed long long int64_t;
550 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
551 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
552 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
553 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
554 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
555 #ifdef _WIN64 676 #ifdef _WIN64
556 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
557 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
558 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
559 #else 680 #else
… …
571#endif 692#endif
572 693
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575 696
697#ifndef ECB_OPTIMIZE_SIZE
698 #if __OPTIMIZE_SIZE__
699 #define ECB_OPTIMIZE_SIZE 1
700 #else
701 #define ECB_OPTIMIZE_SIZE 0
702 #endif
703#endif
704
576/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578 #if _ILP32 707 #if _ILP32
579 #define ECB_AMD64_X32 1 708 #define ECB_AMD64_X32 1
580 #else 709 #else
… …
609 #define ECB_CLANG_EXTENSION(x) 0 738 #define ECB_CLANG_EXTENSION(x) 0
610#endif 739#endif
611 740
612#define ECB_CPP (__cplusplus+0) 741#define ECB_CPP (__cplusplus+0)
613#define ECB_CPP11 (__cplusplus >= 201103L) 742#define ECB_CPP11 (__cplusplus >= 201103L)
743#define ECB_CPP14 (__cplusplus >= 201402L)
744#define ECB_CPP17 (__cplusplus >= 201703L)
614 745
615#if ECB_CPP 746#if ECB_CPP
616 #define ECB_C 0 747 #define ECB_C 0
617 #define ECB_STDC_VERSION 0 748 #define ECB_STDC_VERSION 0
618#else 749#else
… …
620 #define ECB_STDC_VERSION __STDC_VERSION__ 751 #define ECB_STDC_VERSION __STDC_VERSION__
621#endif 752#endif
622 753
623#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 754#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
624#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 755#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
756#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
625 757
626#if ECB_CPP 758#if ECB_CPP
627 #define ECB_EXTERN_C extern "C" 759 #define ECB_EXTERN_C extern "C"
628 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 760 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
629 #define ECB_EXTERN_C_END } 761 #define ECB_EXTERN_C_END }
… …
655 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 787 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
656#endif 788#endif
657 789
658#ifndef ECB_MEMORY_FENCE 790#ifndef ECB_MEMORY_FENCE
659 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 791 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
792 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
660 #if __i386 || __i386__ 793 #if __i386 || __i386__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
662 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 795 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
663 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 796 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
664 #elif ECB_GCC_AMD64 797 #elif ECB_GCC_AMD64
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 798 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
668 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 801 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 802 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
670 #elif defined __ARM_ARCH_2__ \ 803 #elif defined __ARM_ARCH_2__ \
671 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 804 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
672 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 805 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
… …
714 #if ECB_GCC_VERSION(4,7) 847 #if ECB_GCC_VERSION(4,7)
715 /* see comment below (stdatomic.h) about the C11 memory model. */ 848 /* see comment below (stdatomic.h) about the C11 memory model. */
716 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 849 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
717 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 850 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
718 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 851 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
852 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
719 853
720 #elif ECB_CLANG_EXTENSION(c_atomic) 854 #elif ECB_CLANG_EXTENSION(c_atomic)
721 /* see comment below (stdatomic.h) about the C11 memory model. */ 855 /* see comment below (stdatomic.h) about the C11 memory model. */
722 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 856 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
723 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 857 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
724 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 858 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
859 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
725 860
726 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 861 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
727 #define ECB_MEMORY_FENCE __sync_synchronize () 862 #define ECB_MEMORY_FENCE __sync_synchronize ()
728 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 863 #elif _MSC_VER >= 1500 /* VC++ 2008 */
729 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 864 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
739 #elif defined _WIN32 874 #elif defined _WIN32
740 #include <WinNT.h> 875 #include <WinNT.h>
741 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 876 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
742 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 877 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
743 #include <mbarrier.h> 878 #include <mbarrier.h>
744 #define ECB_MEMORY_FENCE __machine_rw_barrier () 879 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
745 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 880 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
746 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 881 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
882 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
747 #elif __xlC__ 883 #elif __xlC__
748 #define ECB_MEMORY_FENCE __sync () 884 #define ECB_MEMORY_FENCE __sync ()
749 #endif 885 #endif
750#endif 886#endif
751 887
752#ifndef ECB_MEMORY_FENCE 888#ifndef ECB_MEMORY_FENCE
753 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 889 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
754 /* we assume that these memory fences work on all variables/all memory accesses, */ 890 /* we assume that these memory fences work on all variables/all memory accesses, */
755 /* not just C11 atomics and atomic accesses */ 891 /* not just C11 atomics and atomic accesses */
756 #include <stdatomic.h> 892 #include <stdatomic.h>
757 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
758 /* any fence other than seq_cst, which isn't very efficient for us. */
759 /* Why that is, we don't know - either the C11 memory model is quite useless */
760 /* for most usages, or gcc and clang have a bug */
761 /* I *currently* lean towards the latter, and inefficiently implement */
762 /* all three of ecb's fences as a seq_cst fence */
763 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
764 /* for all __atomic_thread_fence's except seq_cst */
765 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 893 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
894 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
895 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
766 #endif 896 #endif
767#endif 897#endif
768 898
769#ifndef ECB_MEMORY_FENCE 899#ifndef ECB_MEMORY_FENCE
770 #if !ECB_AVOID_PTHREADS 900 #if !ECB_AVOID_PTHREADS
… …
788 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 918 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
789#endif 919#endif
790 920
791#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 921#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
792 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
923#endif
924
925#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
926 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
793#endif 927#endif
794 928
795/*****************************************************************************/ 929/*****************************************************************************/
796 930
797#if ECB_CPP 931#if ECB_CPP
… …
1081ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1215ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1082ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1216ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1083ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1217ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1084ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1218ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1085 1219
1220#if ECB_CPP
1221
1222inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1223inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1224inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1225inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1226
1227inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1228inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1229inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1230inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1231
1232inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1233inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1234inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1235inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1236
1237inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1238inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1239inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1240inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1241
1242inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1243inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1244inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1245
1246inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1247inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1248inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1249inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1250
1251inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1252inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1253inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1254inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1255
1256#endif
1257
1086#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1258#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1087 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1088 #define ecb_bswap16(x) __builtin_bswap16 (x) 1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1089 #else 1261 #else
1090 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1161ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1162ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } 1334ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1163ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1164ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } 1336ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1165 1337
1338/*****************************************************************************/
1339/* unaligned load/store */
1340
1341ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1342ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1343ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1344
1345ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1350ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1351ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1354ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1355ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1356
1357ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1362ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1363ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1364
1365ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1370ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1371ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1372
1373ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1374ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1375ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1376
1377ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1378ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1379ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1380
1381#if ECB_CPP
1382
1383inline uint8_t ecb_bswap (uint8_t v) { return v; }
1384inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1385inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1386inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1387
1388template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1389template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1390template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1391template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1392template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1393template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1394template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1395template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1396
1397template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1398template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1399template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1400template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1401template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1402template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1403template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1404template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1405
1406#endif
1407
1408/*****************************************************************************/
1409
1166#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1167 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1411 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1168#else 1412#else
1169 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1413 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1170#endif 1414#endif
… …
1193 return N; 1437 return N;
1194 } 1438 }
1195#else 1439#else
1196 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1197#endif 1441#endif
1442
1443/*****************************************************************************/
1198 1444
1199ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); 1445ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1200ecb_function_ ecb_const uint32_t 1446ecb_function_ ecb_const uint32_t
1201ecb_binary16_to_binary32 (uint32_t x) 1447ecb_binary16_to_binary32 (uint32_t x)
1202{ 1448{
… …
1311 || defined __sh__ \ 1557 || defined __sh__ \
1312 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1558 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1313 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1559 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1314 || defined __aarch64__ 1560 || defined __aarch64__
1315 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1316 #include <string.h> /* for memcpy */
1317#else 1562#else
1318 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1319#endif 1564#endif
1320 1565
1321#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1506/* ECB.H END */ 1751/* ECB.H END */
1507 1752
1508#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1753#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1509/* if your architecture doesn't need memory fences, e.g. because it is 1754/* if your architecture doesn't need memory fences, e.g. because it is
1510 * single-cpu/core, or if you use libev in a project that doesn't use libev 1755 * single-cpu/core, or if you use libev in a project that doesn't use libev
1511 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1756 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1512 * libev, in which cases the memory fences become nops. 1757 * libev, in which cases the memory fences become nops.
1513 * alternatively, you can remove this #error and link against libpthread, 1758 * alternatively, you can remove this #error and link against libpthread,
1514 * which will then provide the memory fences. 1759 * which will then provide the memory fences.
1515 */ 1760 */
1516# error "memory fences not defined for your architecture, please report" 1761# error "memory fences not defined for your architecture, please report"
… …
1520# define ECB_MEMORY_FENCE do { } while (0) 1765# define ECB_MEMORY_FENCE do { } while (0)
1521# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1766# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1522# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1767# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1523#endif 1768#endif
1524 1769
1525#define expect_false(cond) ecb_expect_false (cond)
1526#define expect_true(cond) ecb_expect_true (cond)
1527#define noinline ecb_noinline
1528
1529#define inline_size ecb_inline 1770#define inline_size ecb_inline
1530 1771
1531#if EV_FEATURE_CODE 1772#if EV_FEATURE_CODE
1532# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1533#else 1774#else
1534# define inline_speed noinline static 1775# define inline_speed ecb_noinline static
1535#endif 1776#endif
1777
1778/*****************************************************************************/
1779/* raw syscall wrappers */
1780
1781#if EV_NEED_SYSCALL
1782
1783#include <sys/syscall.h>
1784
1785/*
1786 * define some syscall wrappers for common architectures
1787 * this is mostly for nice looks during debugging, not performance.
1788 * our syscalls return < 0, not == -1, on error. which is good
1789 * enough for linux aio.
1790 * TODO: arm is also common nowadays, maybe even mips and x86
1791 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1792 */
1793#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1794 /* the costly errno access probably kills this for size optimisation */
1795
1796 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1797 ({ \
1798 long res; \
1799 register unsigned long r6 __asm__ ("r9" ); \
1800 register unsigned long r5 __asm__ ("r8" ); \
1801 register unsigned long r4 __asm__ ("r10"); \
1802 register unsigned long r3 __asm__ ("rdx"); \
1803 register unsigned long r2 __asm__ ("rsi"); \
1804 register unsigned long r1 __asm__ ("rdi"); \
1805 if (narg >= 6) r6 = (unsigned long)(arg6); \
1806 if (narg >= 5) r5 = (unsigned long)(arg5); \
1807 if (narg >= 4) r4 = (unsigned long)(arg4); \
1808 if (narg >= 3) r3 = (unsigned long)(arg3); \
1809 if (narg >= 2) r2 = (unsigned long)(arg2); \
1810 if (narg >= 1) r1 = (unsigned long)(arg1); \
1811 __asm__ __volatile__ ( \
1812 "syscall\n\t" \
1813 : "=a" (res) \
1814 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1815 : "cc", "r11", "cx", "memory"); \
1816 errno = -res; \
1817 res; \
1818 })
1819
1820#endif
1821
1822#ifdef ev_syscall
1823 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1824 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1825 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1826 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1827 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1828 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1829 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1830#else
1831 #define ev_syscall0(nr) syscall (nr)
1832 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1833 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1834 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1835 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1836 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1837 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1838#endif
1839
1840#endif
1841
1842/*****************************************************************************/
1536 1843
1537#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1538 1845
1539#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1540# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
1541#else 1848#else
1542# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1849# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1543#endif 1850#endif
1544 1851
1545#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1852#define EMPTY /* required for microsofts broken pseudo-c compiler */
1546#define EMPTY2(a,b) /* used to suppress some warnings */
1547 1853
1548typedef ev_watcher *W; 1854typedef ev_watcher *W;
1549typedef ev_watcher_list *WL; 1855typedef ev_watcher_list *WL;
1550typedef ev_watcher_time *WT; 1856typedef ev_watcher_time *WT;
1551 1857
… …
1576# include "ev_win32.c" 1882# include "ev_win32.c"
1577#endif 1883#endif
1578 1884
1579/*****************************************************************************/ 1885/*****************************************************************************/
1580 1886
1887#if EV_USE_LINUXAIO
1888# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1889#endif
1890
1581/* define a suitable floor function (only used by periodics atm) */ 1891/* define a suitable floor function (only used by periodics atm) */
1582 1892
1583#if EV_USE_FLOOR 1893#if EV_USE_FLOOR
1584# include <math.h> 1894# include <math.h>
1585# define ev_floor(v) floor (v) 1895# define ev_floor(v) floor (v)
1586#else 1896#else
1587 1897
1588#include <float.h> 1898#include <float.h>
1589 1899
1590/* a floor() replacement function, should be independent of ev_tstamp type */ 1900/* a floor() replacement function, should be independent of ev_tstamp type */
1591noinline 1901ecb_noinline
1592static ev_tstamp 1902static ev_tstamp
1593ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1594{ 1904{
1595 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1596#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1598#else 1908#else
1599 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1600#endif 1910#endif
1601 1911
1912 /* special treatment for negative arguments */
1913 if (ecb_expect_false (v < 0.))
1914 {
1915 ev_tstamp f = -ev_floor (-v);
1916
1917 return f - (f == v ? 0 : 1);
1918 }
1919
1602 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1603 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1604 { 1922 {
1605 ev_tstamp f; 1923 ev_tstamp f;
1606 1924
1607 if (v == v - 1.) 1925 if (v == v - 1.)
1608 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1609 1927
1610 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1611 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1612 } 1930 }
1613 1931
1614 /* special treatment for negative args? */
1615 if (expect_false (v < 0.))
1616 {
1617 ev_tstamp f = -ev_floor (-v);
1618
1619 return f - (f == v ? 0 : 1);
1620 }
1621
1622 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1623 return (unsigned long)v; 1933 return (unsigned long)v;
1624} 1934}
1625 1935
1626#endif 1936#endif
… …
1629 1939
1630#ifdef __linux 1940#ifdef __linux
1631# include <sys/utsname.h> 1941# include <sys/utsname.h>
1632#endif 1942#endif
1633 1943
1634noinline ecb_cold 1944ecb_noinline ecb_cold
1635static unsigned int 1945static unsigned int
1636ev_linux_version (void) 1946ev_linux_version (void)
1637{ 1947{
1638#ifdef __linux 1948#ifdef __linux
1639 unsigned int v = 0; 1949 unsigned int v = 0;
… …
1669} 1979}
1670 1980
1671/*****************************************************************************/ 1981/*****************************************************************************/
1672 1982
1673#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1674noinline ecb_cold 1984ecb_noinline ecb_cold
1675static void 1985static void
1676ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1677{ 1987{
1678 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1679} 1989}
1680#endif 1990#endif
1681 1991
1682static void (*syserr_cb)(const char *msg) EV_THROW; 1992static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1683 1993
1684ecb_cold 1994ecb_cold
1685void 1995void
1686ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1996ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1687{ 1997{
1688 syserr_cb = cb; 1998 syserr_cb = cb;
1689} 1999}
1690 2000
1691noinline ecb_cold 2001ecb_noinline ecb_cold
1692static void 2002static void
1693ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1694{ 2004{
1695 if (!msg) 2005 if (!msg)
1696 msg = "(libev) system error"; 2006 msg = "(libev) system error";
… …
1710 abort (); 2020 abort ();
1711 } 2021 }
1712} 2022}
1713 2023
1714static void * 2024static void *
1715ev_realloc_emul (void *ptr, long size) EV_THROW 2025ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1716{ 2026{
1717 /* some systems, notably openbsd and darwin, fail to properly 2027 /* some systems, notably openbsd and darwin, fail to properly
1718 * implement realloc (x, 0) (as required by both ansi c-89 and 2028 * implement realloc (x, 0) (as required by both ansi c-89 and
1719 * the single unix specification, so work around them here. 2029 * the single unix specification, so work around them here.
1720 * recently, also (at least) fedora and debian started breaking it, 2030 * recently, also (at least) fedora and debian started breaking it,
… …
1726 2036
1727 free (ptr); 2037 free (ptr);
1728 return 0; 2038 return 0;
1729} 2039}
1730 2040
1731static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2041static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1732 2042
1733ecb_cold 2043ecb_cold
1734void 2044void
1735ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 2045ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1736{ 2046{
1737 alloc = cb; 2047 alloc = cb;
1738} 2048}
1739 2049
1740inline_speed void * 2050inline_speed void *
… …
1767typedef struct 2077typedef struct
1768{ 2078{
1769 WL head; 2079 WL head;
1770 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1771 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2081 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1772 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1773 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1774#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1775 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1776#endif 2086#endif
1777#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1778 SOCKET handle; 2088 SOCKET handle;
… …
1832 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1833 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2143 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1834 2144
1835#else 2145#else
1836 2146
1837 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1838 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1839 #include "ev_vars.h" 2149 #include "ev_vars.h"
1840 #undef VAR 2150 #undef VAR
1841 2151
1842 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1843 2153
1844#endif 2154#endif
1845 2155
1846#if EV_FEATURE_API 2156#if EV_FEATURE_API
1847# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2157# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1848# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2158# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1849# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1850#else 2160#else
1851# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1852# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1853# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1857 2167
1858/*****************************************************************************/ 2168/*****************************************************************************/
1859 2169
1860#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1861ev_tstamp 2171ev_tstamp
1862ev_time (void) EV_THROW 2172ev_time (void) EV_NOEXCEPT
1863{ 2173{
1864#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1865 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1866 { 2176 {
1867 struct timespec ts; 2177 struct timespec ts;
1868 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1869 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1870 } 2180 }
1871#endif 2181#endif
1872 2182
2183 {
1873 struct timeval tv; 2184 struct timeval tv;
1874 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1875 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1876} 2188}
1877#endif 2189#endif
1878 2190
1879inline_size ev_tstamp 2191inline_size ev_tstamp
1880get_clock (void) 2192get_clock (void)
1881{ 2193{
1882#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1883 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1884 { 2196 {
1885 struct timespec ts; 2197 struct timespec ts;
1886 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1887 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1888 } 2200 }
1889#endif 2201#endif
1890 2202
1891 return ev_time (); 2203 return ev_time ();
1892} 2204}
1893 2205
1894#if EV_MULTIPLICITY 2206#if EV_MULTIPLICITY
1895ev_tstamp 2207ev_tstamp
1896ev_now (EV_P) EV_THROW 2208ev_now (EV_P) EV_NOEXCEPT
1897{ 2209{
1898 return ev_rt_now; 2210 return ev_rt_now;
1899} 2211}
1900#endif 2212#endif
1901 2213
1902void 2214void
1903ev_sleep (ev_tstamp delay) EV_THROW 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1904{ 2216{
1905 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1906 { 2218 {
1907#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1908 struct timespec ts; 2220 struct timespec ts;
1909 2221
1910 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1911 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1912#elif defined _WIN32 2224#elif defined _WIN32
1913 /* maybe this should round up, as ms is very low resolution */ 2225 /* maybe this should round up, as ms is very low resolution */
1914 /* compared to select (µs) or nanosleep (ns) */ 2226 /* compared to select (µs) or nanosleep (ns) */
1915 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1916#else 2228#else
1917 struct timeval tv; 2229 struct timeval tv;
1918 2230
1919 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2231 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1920 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1950 } 2262 }
1951 2263
1952 return ncur; 2264 return ncur;
1953} 2265}
1954 2266
1955noinline ecb_cold 2267ecb_noinline ecb_cold
1956static void * 2268static void *
1957array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1958{ 2270{
1959 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1960 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1961} 2273}
1962 2274
2275#define array_needsize_noinit(base,offset,count)
2276
1963#define array_init_zero(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1964 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1965 2279
1966#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1967 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1968 { \ 2282 { \
1969 ecb_unused int ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1970 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1971 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1972 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1973 } 2287 }
1974 2288
1975#if 0 2289#if 0
1976#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1977 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1986 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2300 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1987 2301
1988/*****************************************************************************/ 2302/*****************************************************************************/
1989 2303
1990/* dummy callback for pending events */ 2304/* dummy callback for pending events */
1991noinline 2305ecb_noinline
1992static void 2306static void
1993pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
1994{ 2308{
1995} 2309}
1996 2310
1997noinline 2311ecb_noinline
1998void 2312void
1999ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2000{ 2314{
2001 W w_ = (W)w; 2315 W w_ = (W)w;
2002 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
2003 2317
2004 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
2005 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
2006 else 2320 else
2007 { 2321 {
2008 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
2009 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2010 pendings [pri][w_->pending - 1].w = w_; 2324 pendings [pri][w_->pending - 1].w = w_;
2011 pendings [pri][w_->pending - 1].events = revents; 2325 pendings [pri][w_->pending - 1].events = revents;
2012 } 2326 }
2013 2327
2014 pendingpri = NUMPRI - 1; 2328 pendingpri = NUMPRI - 1;
2015} 2329}
2016 2330
2017inline_speed void 2331inline_speed void
2018feed_reverse (EV_P_ W w) 2332feed_reverse (EV_P_ W w)
2019{ 2333{
2020 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2334 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2021 rfeeds [rfeedcnt++] = w; 2335 rfeeds [rfeedcnt++] = w;
2022} 2336}
2023 2337
2024inline_size void 2338inline_size void
2025feed_reverse_done (EV_P_ int revents) 2339feed_reverse_done (EV_P_ int revents)
… …
2060inline_speed void 2374inline_speed void
2061fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
2062{ 2376{
2063 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
2064 2378
2065 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
2066 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
2067} 2381}
2068 2382
2069void 2383void
2070ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2071{ 2385{
2072 if (fd >= 0 && fd < anfdmax) 2386 if (fd >= 0 && fd < anfdmax)
2073 fd_event_nocheck (EV_A_ fd, revents); 2387 fd_event_nocheck (EV_A_ fd, revents);
2074} 2388}
2075 2389
… …
2078inline_size void 2392inline_size void
2079fd_reify (EV_P) 2393fd_reify (EV_P)
2080{ 2394{
2081 int i; 2395 int i;
2082 2396
2397 /* most backends do not modify the fdchanges list in backend_modfiy.
2398 * except io_uring, which has fixed-size buffers which might force us
2399 * to handle events in backend_modify, causing fdchangesd to be amended,
2400 * which could result in an endless loop.
2401 * to avoid this, we do not dynamically handle fds that were added
2402 * during fd_reify. that menas thast for those backends, fdchangecnt
2403 * might be non-zero during poll, which must cause them to not block.
2404 * to not put too much of a burden on other backends, this detail
2405 * needs to be handled in the backend.
2406 */
2407 int changecnt = fdchangecnt;
2408
2083#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2084 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2085 { 2411 {
2086 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2087 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2088 2414
2089 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2103 } 2429 }
2104 } 2430 }
2105 } 2431 }
2106#endif 2432#endif
2107 2433
2108 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2109 { 2435 {
2110 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2111 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2112 ev_io *w; 2438 ev_io *w;
2113 2439
2114 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
2115 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
2116 2442
2117 anfd->reify = 0; 2443 anfd->reify = 0;
2118 2444
2119 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2120 { 2446 {
2121 anfd->events = 0; 2447 anfd->events = 0;
2122 2448
2123 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2449 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2124 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
2129 2455
2130 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2131 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2132 } 2458 }
2133 2459
2460 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2461 * this is a rare case (see beginning comment in this function), so we copy them to the
2462 * front and hope the backend handles this case.
2463 */
2464 if (ecb_expect_false (fdchangecnt != changecnt))
2465 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2466
2134 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2135} 2468}
2136 2469
2137/* something about the given fd changed */ 2470/* something about the given fd changed */
2138inline_size 2471inline_size
2139void 2472void
2140fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
2141{ 2474{
2142 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
2143 anfds [fd].reify |= flags; 2476 anfds [fd].reify |= flags;
2144 2477
2145 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
2146 { 2479 {
2147 ++fdchangecnt; 2480 ++fdchangecnt;
2148 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2149 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
2150 } 2483 }
2151} 2484}
2152 2485
2153/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2486/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
… …
2173 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
2174#endif 2507#endif
2175} 2508}
2176 2509
2177/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
2178noinline ecb_cold 2511ecb_noinline ecb_cold
2179static void 2512static void
2180fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
2181{ 2514{
2182 int fd; 2515 int fd;
2183 2516
… …
2186 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
2187 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
2188} 2521}
2189 2522
2190/* called on ENOMEM in select/poll to kill some fds and retry */ 2523/* called on ENOMEM in select/poll to kill some fds and retry */
2191noinline ecb_cold 2524ecb_noinline ecb_cold
2192static void 2525static void
2193fd_enomem (EV_P) 2526fd_enomem (EV_P)
2194{ 2527{
2195 int fd; 2528 int fd;
2196 2529
… …
2201 break; 2534 break;
2202 } 2535 }
2203} 2536}
2204 2537
2205/* usually called after fork if backend needs to re-arm all fds from scratch */ 2538/* usually called after fork if backend needs to re-arm all fds from scratch */
2206noinline 2539ecb_noinline
2207static void 2540static void
2208fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
2209{ 2542{
2210 int fd; 2543 int fd;
2211 2544
… …
2265 ev_tstamp minat; 2598 ev_tstamp minat;
2266 ANHE *minpos; 2599 ANHE *minpos;
2267 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2268 2601
2269 /* find minimum child */ 2602 /* find minimum child */
2270 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2271 { 2604 {
2272 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2273 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2606 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2274 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2607 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2275 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2608 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2276 } 2609 }
2277 else if (pos < E) 2610 else if (pos < E)
2278 { 2611 {
2279 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2280 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2613 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2281 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2614 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2282 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2615 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2283 } 2616 }
2284 else 2617 else
2285 break; 2618 break;
2286 2619
2287 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2295 2628
2296 heap [k] = he; 2629 heap [k] = he;
2297 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2298} 2631}
2299 2632
2300#else /* 4HEAP */ 2633#else /* not 4HEAP */
2301 2634
2302#define HEAP0 1 2635#define HEAP0 1
2303#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2304#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2305 2638
… …
2377 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2378} 2711}
2379 2712
2380/*****************************************************************************/ 2713/*****************************************************************************/
2381 2714
2382/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2383typedef struct 2716typedef struct
2384{ 2717{
2385 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2386#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2387 EV_P; 2720 EV_P;
… …
2393 2726
2394/*****************************************************************************/ 2727/*****************************************************************************/
2395 2728
2396#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2397 2730
2398noinline ecb_cold 2731ecb_noinline ecb_cold
2399static void 2732static void
2400evpipe_init (EV_P) 2733evpipe_init (EV_P)
2401{ 2734{
2402 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2403 { 2736 {
… …
2444inline_speed void 2777inline_speed void
2445evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2446{ 2779{
2447 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2780 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2448 2781
2449 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2450 return; 2783 return;
2451 2784
2452 *flag = 1; 2785 *flag = 1;
2453 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2786 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2454 2787
… …
2475#endif 2808#endif
2476 { 2809 {
2477#ifdef _WIN32 2810#ifdef _WIN32
2478 WSABUF buf; 2811 WSABUF buf;
2479 DWORD sent; 2812 DWORD sent;
2480 buf.buf = &buf; 2813 buf.buf = (char *)&buf;
2481 buf.len = 1; 2814 buf.len = 1;
2482 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2815 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2483#else 2816#else
2484 write (evpipe [1], &(evpipe [1]), 1); 2817 write (evpipe [1], &(evpipe [1]), 1);
2485#endif 2818#endif
… …
2531 sig_pending = 0; 2864 sig_pending = 0;
2532 2865
2533 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2534 2867
2535 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2536 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2537 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2538 } 2871 }
2539#endif 2872#endif
2540 2873
2541#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2557} 2890}
2558 2891
2559/*****************************************************************************/ 2892/*****************************************************************************/
2560 2893
2561void 2894void
2562ev_feed_signal (int signum) EV_THROW 2895ev_feed_signal (int signum) EV_NOEXCEPT
2563{ 2896{
2564#if EV_MULTIPLICITY 2897#if EV_MULTIPLICITY
2565 EV_P; 2898 EV_P;
2566 ECB_MEMORY_FENCE_ACQUIRE; 2899 ECB_MEMORY_FENCE_ACQUIRE;
2567 EV_A = signals [signum - 1].loop; 2900 EV_A = signals [signum - 1].loop;
… …
2582#endif 2915#endif
2583 2916
2584 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2585} 2918}
2586 2919
2587noinline 2920ecb_noinline
2588void 2921void
2589ev_feed_signal_event (EV_P_ int signum) EV_THROW 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2590{ 2923{
2591 WL w; 2924 WL w;
2592 2925
2593 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2594 return; 2927 return;
2595 2928
2596 --signum; 2929 --signum;
2597 2930
2598#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2599 /* it is permissible to try to feed a signal to the wrong loop */ 2932 /* it is permissible to try to feed a signal to the wrong loop */
2600 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2601 2934
2602 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2603 return; 2936 return;
2604#endif 2937#endif
2605 2938
2606 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2607 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2691 3024
2692#endif 3025#endif
2693 3026
2694/*****************************************************************************/ 3027/*****************************************************************************/
2695 3028
3029#if EV_USE_TIMERFD
3030
3031static void periodics_reschedule (EV_P);
3032
3033static void
3034timerfdcb (EV_P_ ev_io *iow, int revents)
3035{
3036 struct itimerspec its = { 0 };
3037
3038 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3039 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3040
3041 ev_rt_now = ev_time ();
3042 /* periodics_reschedule only needs ev_rt_now */
3043 /* but maybe in the future we want the full treatment. */
3044 /*
3045 now_floor = EV_TS_CONST (0.);
3046 time_update (EV_A_ EV_TSTAMP_HUGE);
3047 */
3048 periodics_reschedule (EV_A);
3049}
3050
3051ecb_noinline ecb_cold
3052static void
3053evtimerfd_init (EV_P)
3054{
3055 if (!ev_is_active (&timerfd_w))
3056 {
3057 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3058
3059 if (timerfd >= 0)
3060 {
3061 fd_intern (timerfd); /* just to be sure */
3062
3063 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3064 ev_set_priority (&timerfd_w, EV_MINPRI);
3065 ev_io_start (EV_A_ &timerfd_w);
3066 ev_unref (EV_A); /* watcher should not keep loop alive */
3067
3068 /* (re-) arm timer */
3069 timerfdcb (EV_A_ 0, 0);
3070 }
3071 }
3072}
3073
3074#endif
3075
3076/*****************************************************************************/
3077
2696#if EV_USE_IOCP 3078#if EV_USE_IOCP
2697# include "ev_iocp.c" 3079# include "ev_iocp.c"
2698#endif 3080#endif
2699#if EV_USE_PORT 3081#if EV_USE_PORT
2700# include "ev_port.c" 3082# include "ev_port.c"
… …
2703# include "ev_kqueue.c" 3085# include "ev_kqueue.c"
2704#endif 3086#endif
2705#if EV_USE_EPOLL 3087#if EV_USE_EPOLL
2706# include "ev_epoll.c" 3088# include "ev_epoll.c"
2707#endif 3089#endif
3090#if EV_USE_LINUXAIO
3091# include "ev_linuxaio.c"
3092#endif
3093#if EV_USE_IOURING
3094# include "ev_iouring.c"
3095#endif
2708#if EV_USE_POLL 3096#if EV_USE_POLL
2709# include "ev_poll.c" 3097# include "ev_poll.c"
2710#endif 3098#endif
2711#if EV_USE_SELECT 3099#if EV_USE_SELECT
2712# include "ev_select.c" 3100# include "ev_select.c"
2713#endif 3101#endif
2714 3102
2715ecb_cold int 3103ecb_cold int
2716ev_version_major (void) EV_THROW 3104ev_version_major (void) EV_NOEXCEPT
2717{ 3105{
2718 return EV_VERSION_MAJOR; 3106 return EV_VERSION_MAJOR;
2719} 3107}
2720 3108
2721ecb_cold int 3109ecb_cold int
2722ev_version_minor (void) EV_THROW 3110ev_version_minor (void) EV_NOEXCEPT
2723{ 3111{
2724 return EV_VERSION_MINOR; 3112 return EV_VERSION_MINOR;
2725} 3113}
2726 3114
2727/* return true if we are running with elevated privileges and should ignore env variables */ 3115/* return true if we are running with elevated privileges and should ignore env variables */
… …
2736#endif 3124#endif
2737} 3125}
2738 3126
2739ecb_cold 3127ecb_cold
2740unsigned int 3128unsigned int
2741ev_supported_backends (void) EV_THROW 3129ev_supported_backends (void) EV_NOEXCEPT
2742{ 3130{
2743 unsigned int flags = 0; 3131 unsigned int flags = 0;
2744 3132
2745 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3133 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2746 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3134 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2747 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3135 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2748 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3136 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2749 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3137 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2750 3138 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3139 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3140
2751 return flags; 3141 return flags;
2752} 3142}
2753 3143
2754ecb_cold 3144ecb_cold
2755unsigned int 3145unsigned int
2756ev_recommended_backends (void) EV_THROW 3146ev_recommended_backends (void) EV_NOEXCEPT
2757{ 3147{
2758 unsigned int flags = ev_supported_backends (); 3148 unsigned int flags = ev_supported_backends ();
2759 3149
2760#ifndef __NetBSD__ 3150#ifndef __NetBSD__
2761 /* kqueue is borked on everything but netbsd apparently */ 3151 /* kqueue is borked on everything but netbsd apparently */
… …
2769#endif 3159#endif
2770#ifdef __FreeBSD__ 3160#ifdef __FreeBSD__
2771 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3161 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2772#endif 3162#endif
2773 3163
3164 /* TODO: linuxaio is very experimental */
3165#if !EV_RECOMMEND_LINUXAIO
3166 flags &= ~EVBACKEND_LINUXAIO;
3167#endif
3168 /* TODO: linuxaio is super experimental */
3169#if !EV_RECOMMEND_IOURING
3170 flags &= ~EVBACKEND_IOURING;
3171#endif
3172
2774 return flags; 3173 return flags;
2775} 3174}
2776 3175
2777ecb_cold 3176ecb_cold
2778unsigned int 3177unsigned int
2779ev_embeddable_backends (void) EV_THROW 3178ev_embeddable_backends (void) EV_NOEXCEPT
2780{ 3179{
2781 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2782 3181
2783 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2784 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2785 flags &= ~EVBACKEND_EPOLL; 3184 flags &= ~EVBACKEND_EPOLL;
2786 3185
3186 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3187
2787 return flags; 3188 return flags;
2788} 3189}
2789 3190
2790unsigned int 3191unsigned int
2791ev_backend (EV_P) EV_THROW 3192ev_backend (EV_P) EV_NOEXCEPT
2792{ 3193{
2793 return backend; 3194 return backend;
2794} 3195}
2795 3196
2796#if EV_FEATURE_API 3197#if EV_FEATURE_API
2797unsigned int 3198unsigned int
2798ev_iteration (EV_P) EV_THROW 3199ev_iteration (EV_P) EV_NOEXCEPT
2799{ 3200{
2800 return loop_count; 3201 return loop_count;
2801} 3202}
2802 3203
2803unsigned int 3204unsigned int
2804ev_depth (EV_P) EV_THROW 3205ev_depth (EV_P) EV_NOEXCEPT
2805{ 3206{
2806 return loop_depth; 3207 return loop_depth;
2807} 3208}
2808 3209
2809void 3210void
2810ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3211ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2811{ 3212{
2812 io_blocktime = interval; 3213 io_blocktime = interval;
2813} 3214}
2814 3215
2815void 3216void
2816ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3217ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2817{ 3218{
2818 timeout_blocktime = interval; 3219 timeout_blocktime = interval;
2819} 3220}
2820 3221
2821void 3222void
2822ev_set_userdata (EV_P_ void *data) EV_THROW 3223ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2823{ 3224{
2824 userdata = data; 3225 userdata = data;
2825} 3226}
2826 3227
2827void * 3228void *
2828ev_userdata (EV_P) EV_THROW 3229ev_userdata (EV_P) EV_NOEXCEPT
2829{ 3230{
2830 return userdata; 3231 return userdata;
2831} 3232}
2832 3233
2833void 3234void
2834ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3235ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2835{ 3236{
2836 invoke_cb = invoke_pending_cb; 3237 invoke_cb = invoke_pending_cb;
2837} 3238}
2838 3239
2839void 3240void
2840ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3241ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2841{ 3242{
2842 release_cb = release; 3243 release_cb = release;
2843 acquire_cb = acquire; 3244 acquire_cb = acquire;
2844} 3245}
2845#endif 3246#endif
2846 3247
2847/* initialise a loop structure, must be zero-initialised */ 3248/* initialise a loop structure, must be zero-initialised */
2848noinline ecb_cold 3249ecb_noinline ecb_cold
2849static void 3250static void
2850loop_init (EV_P_ unsigned int flags) EV_THROW 3251loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2851{ 3252{
2852 if (!backend) 3253 if (!backend)
2853 { 3254 {
2854 origflags = flags; 3255 origflags = flags;
2855 3256
… …
2908 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3309 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2909#endif 3310#endif
2910#if EV_USE_SIGNALFD 3311#if EV_USE_SIGNALFD
2911 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3312 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2912#endif 3313#endif
3314#if EV_USE_TIMERFD
3315 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3316#endif
2913 3317
2914 if (!(flags & EVBACKEND_MASK)) 3318 if (!(flags & EVBACKEND_MASK))
2915 flags |= ev_recommended_backends (); 3319 flags |= ev_recommended_backends ();
2916 3320
2917#if EV_USE_IOCP 3321#if EV_USE_IOCP
2918 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3322 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2919#endif 3323#endif
2920#if EV_USE_PORT 3324#if EV_USE_PORT
2921 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3325 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2922#endif 3326#endif
2923#if EV_USE_KQUEUE 3327#if EV_USE_KQUEUE
2924 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3329#endif
3330#if EV_USE_IOURING
3331 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3332#endif
3333#if EV_USE_LINUXAIO
3334 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2925#endif 3335#endif
2926#if EV_USE_EPOLL 3336#if EV_USE_EPOLL
2927 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3337 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2928#endif 3338#endif
2929#if EV_USE_POLL 3339#if EV_USE_POLL
2930 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3340 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2931#endif 3341#endif
2932#if EV_USE_SELECT 3342#if EV_USE_SELECT
2933 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3343 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2934#endif 3344#endif
2935 3345
2936 ev_prepare_init (&pending_w, pendingcb); 3346 ev_prepare_init (&pending_w, pendingcb);
2937 3347
2938#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3348#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2955 return; 3365 return;
2956#endif 3366#endif
2957 3367
2958#if EV_CLEANUP_ENABLE 3368#if EV_CLEANUP_ENABLE
2959 /* queue cleanup watchers (and execute them) */ 3369 /* queue cleanup watchers (and execute them) */
2960 if (expect_false (cleanupcnt)) 3370 if (ecb_expect_false (cleanupcnt))
2961 { 3371 {
2962 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3372 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2963 EV_INVOKE_PENDING; 3373 EV_INVOKE_PENDING;
2964 } 3374 }
2965#endif 3375#endif
… …
2984#if EV_USE_SIGNALFD 3394#if EV_USE_SIGNALFD
2985 if (ev_is_active (&sigfd_w)) 3395 if (ev_is_active (&sigfd_w))
2986 close (sigfd); 3396 close (sigfd);
2987#endif 3397#endif
2988 3398
3399#if EV_USE_TIMERFD
3400 if (ev_is_active (&timerfd_w))
3401 close (timerfd);
3402#endif
3403
2989#if EV_USE_INOTIFY 3404#if EV_USE_INOTIFY
2990 if (fs_fd >= 0) 3405 if (fs_fd >= 0)
2991 close (fs_fd); 3406 close (fs_fd);
2992#endif 3407#endif
2993 3408
2994 if (backend_fd >= 0) 3409 if (backend_fd >= 0)
2995 close (backend_fd); 3410 close (backend_fd);
2996 3411
2997#if EV_USE_IOCP 3412#if EV_USE_IOCP
2998 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3413 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2999#endif 3414#endif
3000#if EV_USE_PORT 3415#if EV_USE_PORT
3001 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3416 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3002#endif 3417#endif
3003#if EV_USE_KQUEUE 3418#if EV_USE_KQUEUE
3004 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3419 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3420#endif
3421#if EV_USE_IOURING
3422 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3423#endif
3424#if EV_USE_LINUXAIO
3425 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3005#endif 3426#endif
3006#if EV_USE_EPOLL 3427#if EV_USE_EPOLL
3007 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3428 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3008#endif 3429#endif
3009#if EV_USE_POLL 3430#if EV_USE_POLL
3010 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3431 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3011#endif 3432#endif
3012#if EV_USE_SELECT 3433#if EV_USE_SELECT
3013 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3434 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3014#endif 3435#endif
3015 3436
3016 for (i = NUMPRI; i--; ) 3437 for (i = NUMPRI; i--; )
3017 { 3438 {
3018 array_free (pending, [i]); 3439 array_free (pending, [i]);
… …
3060 3481
3061inline_size void 3482inline_size void
3062loop_fork (EV_P) 3483loop_fork (EV_P)
3063{ 3484{
3064#if EV_USE_PORT 3485#if EV_USE_PORT
3065 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3486 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3066#endif 3487#endif
3067#if EV_USE_KQUEUE 3488#if EV_USE_KQUEUE
3068 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3489 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3490#endif
3491#if EV_USE_IOURING
3492 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3493#endif
3494#if EV_USE_LINUXAIO
3495 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3069#endif 3496#endif
3070#if EV_USE_EPOLL 3497#if EV_USE_EPOLL
3071 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3498 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3072#endif 3499#endif
3073#if EV_USE_INOTIFY 3500#if EV_USE_INOTIFY
3074 infy_fork (EV_A); 3501 infy_fork (EV_A);
3075#endif 3502#endif
3076 3503
3504 if (postfork != 2)
3505 {
3506 #if EV_USE_SIGNALFD
3507 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3508 #endif
3509
3510 #if EV_USE_TIMERFD
3511 if (ev_is_active (&timerfd_w))
3512 {
3513 ev_ref (EV_A);
3514 ev_io_stop (EV_A_ &timerfd_w);
3515
3516 close (timerfd);
3517 timerfd = -2;
3518
3519 evtimerfd_init (EV_A);
3520 /* reschedule periodics, in case we missed something */
3521 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3522 }
3523 #endif
3524
3077#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3525 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3078 if (ev_is_active (&pipe_w) && postfork != 2) 3526 if (ev_is_active (&pipe_w))
3079 { 3527 {
3080 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3528 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3081 3529
3082 ev_ref (EV_A); 3530 ev_ref (EV_A);
3083 ev_io_stop (EV_A_ &pipe_w); 3531 ev_io_stop (EV_A_ &pipe_w);
3084 3532
3085 if (evpipe [0] >= 0) 3533 if (evpipe [0] >= 0)
3086 EV_WIN32_CLOSE_FD (evpipe [0]); 3534 EV_WIN32_CLOSE_FD (evpipe [0]);
3087 3535
3088 evpipe_init (EV_A); 3536 evpipe_init (EV_A);
3089 /* iterate over everything, in case we missed something before */ 3537 /* iterate over everything, in case we missed something before */
3090 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3538 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3539 }
3540 #endif
3091 } 3541 }
3092#endif
3093 3542
3094 postfork = 0; 3543 postfork = 0;
3095} 3544}
3096 3545
3097#if EV_MULTIPLICITY 3546#if EV_MULTIPLICITY
3098 3547
3099ecb_cold 3548ecb_cold
3100struct ev_loop * 3549struct ev_loop *
3101ev_loop_new (unsigned int flags) EV_THROW 3550ev_loop_new (unsigned int flags) EV_NOEXCEPT
3102{ 3551{
3103 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3552 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3104 3553
3105 memset (EV_A, 0, sizeof (struct ev_loop)); 3554 memset (EV_A, 0, sizeof (struct ev_loop));
3106 loop_init (EV_A_ flags); 3555 loop_init (EV_A_ flags);
… …
3113} 3562}
3114 3563
3115#endif /* multiplicity */ 3564#endif /* multiplicity */
3116 3565
3117#if EV_VERIFY 3566#if EV_VERIFY
3118noinline ecb_cold 3567ecb_noinline ecb_cold
3119static void 3568static void
3120verify_watcher (EV_P_ W w) 3569verify_watcher (EV_P_ W w)
3121{ 3570{
3122 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3571 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3123 3572
3124 if (w->pending) 3573 if (w->pending)
3125 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3574 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3126} 3575}
3127 3576
3128noinline ecb_cold 3577ecb_noinline ecb_cold
3129static void 3578static void
3130verify_heap (EV_P_ ANHE *heap, int N) 3579verify_heap (EV_P_ ANHE *heap, int N)
3131{ 3580{
3132 int i; 3581 int i;
3133 3582
… …
3139 3588
3140 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3589 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3141 } 3590 }
3142} 3591}
3143 3592
3144noinline ecb_cold 3593ecb_noinline ecb_cold
3145static void 3594static void
3146array_verify (EV_P_ W *ws, int cnt) 3595array_verify (EV_P_ W *ws, int cnt)
3147{ 3596{
3148 while (cnt--) 3597 while (cnt--)
3149 { 3598 {
… …
3153} 3602}
3154#endif 3603#endif
3155 3604
3156#if EV_FEATURE_API 3605#if EV_FEATURE_API
3157void ecb_cold 3606void ecb_cold
3158ev_verify (EV_P) EV_THROW 3607ev_verify (EV_P) EV_NOEXCEPT
3159{ 3608{
3160#if EV_VERIFY 3609#if EV_VERIFY
3161 int i; 3610 int i;
3162 WL w, w2; 3611 WL w, w2;
3163 3612
… …
3244ecb_cold 3693ecb_cold
3245struct ev_loop * 3694struct ev_loop *
3246#else 3695#else
3247int 3696int
3248#endif 3697#endif
3249ev_default_loop (unsigned int flags) EV_THROW 3698ev_default_loop (unsigned int flags) EV_NOEXCEPT
3250{ 3699{
3251 if (!ev_default_loop_ptr) 3700 if (!ev_default_loop_ptr)
3252 { 3701 {
3253#if EV_MULTIPLICITY 3702#if EV_MULTIPLICITY
3254 EV_P = ev_default_loop_ptr = &default_loop_struct; 3703 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3273 3722
3274 return ev_default_loop_ptr; 3723 return ev_default_loop_ptr;
3275} 3724}
3276 3725
3277void 3726void
3278ev_loop_fork (EV_P) EV_THROW 3727ev_loop_fork (EV_P) EV_NOEXCEPT
3279{ 3728{
3280 postfork = 1; 3729 postfork = 1;
3281} 3730}
3282 3731
3283/*****************************************************************************/ 3732/*****************************************************************************/
… …
3287{ 3736{
3288 EV_CB_INVOKE ((W)w, revents); 3737 EV_CB_INVOKE ((W)w, revents);
3289} 3738}
3290 3739
3291unsigned int 3740unsigned int
3292ev_pending_count (EV_P) EV_THROW 3741ev_pending_count (EV_P) EV_NOEXCEPT
3293{ 3742{
3294 int pri; 3743 int pri;
3295 unsigned int count = 0; 3744 unsigned int count = 0;
3296 3745
3297 for (pri = NUMPRI; pri--; ) 3746 for (pri = NUMPRI; pri--; )
3298 count += pendingcnt [pri]; 3747 count += pendingcnt [pri];
3299 3748
3300 return count; 3749 return count;
3301} 3750}
3302 3751
3303noinline 3752ecb_noinline
3304void 3753void
3305ev_invoke_pending (EV_P) 3754ev_invoke_pending (EV_P)
3306{ 3755{
3307 pendingpri = NUMPRI; 3756 pendingpri = NUMPRI;
3308 3757
3309 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3758 do
3310 { 3759 {
3311 --pendingpri; 3760 --pendingpri;
3312 3761
3762 /* pendingpri possibly gets modified in the inner loop */
3313 while (pendingcnt [pendingpri]) 3763 while (pendingcnt [pendingpri])
3314 { 3764 {
3315 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3765 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3316 3766
3317 p->w->pending = 0; 3767 p->w->pending = 0;
3318 EV_CB_INVOKE (p->w, p->events); 3768 EV_CB_INVOKE (p->w, p->events);
3319 EV_FREQUENT_CHECK; 3769 EV_FREQUENT_CHECK;
3320 } 3770 }
3321 } 3771 }
3772 while (pendingpri);
3322} 3773}
3323 3774
3324#if EV_IDLE_ENABLE 3775#if EV_IDLE_ENABLE
3325/* make idle watchers pending. this handles the "call-idle */ 3776/* make idle watchers pending. this handles the "call-idle */
3326/* only when higher priorities are idle" logic */ 3777/* only when higher priorities are idle" logic */
3327inline_size void 3778inline_size void
3328idle_reify (EV_P) 3779idle_reify (EV_P)
3329{ 3780{
3330 if (expect_false (idleall)) 3781 if (ecb_expect_false (idleall))
3331 { 3782 {
3332 int pri; 3783 int pri;
3333 3784
3334 for (pri = NUMPRI; pri--; ) 3785 for (pri = NUMPRI; pri--; )
3335 { 3786 {
… …
3365 { 3816 {
3366 ev_at (w) += w->repeat; 3817 ev_at (w) += w->repeat;
3367 if (ev_at (w) < mn_now) 3818 if (ev_at (w) < mn_now)
3368 ev_at (w) = mn_now; 3819 ev_at (w) = mn_now;
3369 3820
3370 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3821 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3371 3822
3372 ANHE_at_cache (timers [HEAP0]); 3823 ANHE_at_cache (timers [HEAP0]);
3373 downheap (timers, timercnt, HEAP0); 3824 downheap (timers, timercnt, HEAP0);
3374 } 3825 }
3375 else 3826 else
… …
3384 } 3835 }
3385} 3836}
3386 3837
3387#if EV_PERIODIC_ENABLE 3838#if EV_PERIODIC_ENABLE
3388 3839
3389noinline 3840ecb_noinline
3390static void 3841static void
3391periodic_recalc (EV_P_ ev_periodic *w) 3842periodic_recalc (EV_P_ ev_periodic *w)
3392{ 3843{
3393 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3844 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3394 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3845 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3397 while (at <= ev_rt_now) 3848 while (at <= ev_rt_now)
3398 { 3849 {
3399 ev_tstamp nat = at + w->interval; 3850 ev_tstamp nat = at + w->interval;
3400 3851
3401 /* when resolution fails us, we use ev_rt_now */ 3852 /* when resolution fails us, we use ev_rt_now */
3402 if (expect_false (nat == at)) 3853 if (ecb_expect_false (nat == at))
3403 { 3854 {
3404 at = ev_rt_now; 3855 at = ev_rt_now;
3405 break; 3856 break;
3406 } 3857 }
3407 3858
… …
3453 } 3904 }
3454} 3905}
3455 3906
3456/* simply recalculate all periodics */ 3907/* simply recalculate all periodics */
3457/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3908/* TODO: maybe ensure that at least one event happens when jumping forward? */
3458noinline ecb_cold 3909ecb_noinline ecb_cold
3459static void 3910static void
3460periodics_reschedule (EV_P) 3911periodics_reschedule (EV_P)
3461{ 3912{
3462 int i; 3913 int i;
3463 3914
… …
3477 reheap (periodics, periodiccnt); 3928 reheap (periodics, periodiccnt);
3478} 3929}
3479#endif 3930#endif
3480 3931
3481/* adjust all timers by a given offset */ 3932/* adjust all timers by a given offset */
3482noinline ecb_cold 3933ecb_noinline ecb_cold
3483static void 3934static void
3484timers_reschedule (EV_P_ ev_tstamp adjust) 3935timers_reschedule (EV_P_ ev_tstamp adjust)
3485{ 3936{
3486 int i; 3937 int i;
3487 3938
… …
3497/* also detect if there was a timejump, and act accordingly */ 3948/* also detect if there was a timejump, and act accordingly */
3498inline_speed void 3949inline_speed void
3499time_update (EV_P_ ev_tstamp max_block) 3950time_update (EV_P_ ev_tstamp max_block)
3500{ 3951{
3501#if EV_USE_MONOTONIC 3952#if EV_USE_MONOTONIC
3502 if (expect_true (have_monotonic)) 3953 if (ecb_expect_true (have_monotonic))
3503 { 3954 {
3504 int i; 3955 int i;
3505 ev_tstamp odiff = rtmn_diff; 3956 ev_tstamp odiff = rtmn_diff;
3506 3957
3507 mn_now = get_clock (); 3958 mn_now = get_clock ();
3508 3959
3509 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3960 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3510 /* interpolate in the meantime */ 3961 /* interpolate in the meantime */
3511 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3962 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3512 { 3963 {
3513 ev_rt_now = rtmn_diff + mn_now; 3964 ev_rt_now = rtmn_diff + mn_now;
3514 return; 3965 return;
3515 } 3966 }
3516 3967
… …
3530 ev_tstamp diff; 3981 ev_tstamp diff;
3531 rtmn_diff = ev_rt_now - mn_now; 3982 rtmn_diff = ev_rt_now - mn_now;
3532 3983
3533 diff = odiff - rtmn_diff; 3984 diff = odiff - rtmn_diff;
3534 3985
3535 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3986 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3536 return; /* all is well */ 3987 return; /* all is well */
3537 3988
3538 ev_rt_now = ev_time (); 3989 ev_rt_now = ev_time ();
3539 mn_now = get_clock (); 3990 mn_now = get_clock ();
3540 now_floor = mn_now; 3991 now_floor = mn_now;
… …
3549 else 4000 else
3550#endif 4001#endif
3551 { 4002 {
3552 ev_rt_now = ev_time (); 4003 ev_rt_now = ev_time ();
3553 4004
3554 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4005 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3555 { 4006 {
3556 /* adjust timers. this is easy, as the offset is the same for all of them */ 4007 /* adjust timers. this is easy, as the offset is the same for all of them */
3557 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4008 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3558#if EV_PERIODIC_ENABLE 4009#if EV_PERIODIC_ENABLE
3559 periodics_reschedule (EV_A); 4010 periodics_reschedule (EV_A);
… …
3582#if EV_VERIFY >= 2 4033#if EV_VERIFY >= 2
3583 ev_verify (EV_A); 4034 ev_verify (EV_A);
3584#endif 4035#endif
3585 4036
3586#ifndef _WIN32 4037#ifndef _WIN32
3587 if (expect_false (curpid)) /* penalise the forking check even more */ 4038 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3588 if (expect_false (getpid () != curpid)) 4039 if (ecb_expect_false (getpid () != curpid))
3589 { 4040 {
3590 curpid = getpid (); 4041 curpid = getpid ();
3591 postfork = 1; 4042 postfork = 1;
3592 } 4043 }
3593#endif 4044#endif
3594 4045
3595#if EV_FORK_ENABLE 4046#if EV_FORK_ENABLE
3596 /* we might have forked, so queue fork handlers */ 4047 /* we might have forked, so queue fork handlers */
3597 if (expect_false (postfork)) 4048 if (ecb_expect_false (postfork))
3598 if (forkcnt) 4049 if (forkcnt)
3599 { 4050 {
3600 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4051 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3601 EV_INVOKE_PENDING; 4052 EV_INVOKE_PENDING;
3602 } 4053 }
3603#endif 4054#endif
3604 4055
3605#if EV_PREPARE_ENABLE 4056#if EV_PREPARE_ENABLE
3606 /* queue prepare watchers (and execute them) */ 4057 /* queue prepare watchers (and execute them) */
3607 if (expect_false (preparecnt)) 4058 if (ecb_expect_false (preparecnt))
3608 { 4059 {
3609 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3610 EV_INVOKE_PENDING; 4061 EV_INVOKE_PENDING;
3611 } 4062 }
3612#endif 4063#endif
3613 4064
3614 if (expect_false (loop_done)) 4065 if (ecb_expect_false (loop_done))
3615 break; 4066 break;
3616 4067
3617 /* we might have forked, so reify kernel state if necessary */ 4068 /* we might have forked, so reify kernel state if necessary */
3618 if (expect_false (postfork)) 4069 if (ecb_expect_false (postfork))
3619 loop_fork (EV_A); 4070 loop_fork (EV_A);
3620 4071
3621 /* update fd-related kernel structures */ 4072 /* update fd-related kernel structures */
3622 fd_reify (EV_A); 4073 fd_reify (EV_A);
3623 4074
… …
3628 4079
3629 /* remember old timestamp for io_blocktime calculation */ 4080 /* remember old timestamp for io_blocktime calculation */
3630 ev_tstamp prev_mn_now = mn_now; 4081 ev_tstamp prev_mn_now = mn_now;
3631 4082
3632 /* update time to cancel out callback processing overhead */ 4083 /* update time to cancel out callback processing overhead */
3633 time_update (EV_A_ 1e100); 4084 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3634 4085
3635 /* from now on, we want a pipe-wake-up */ 4086 /* from now on, we want a pipe-wake-up */
3636 pipe_write_wanted = 1; 4087 pipe_write_wanted = 1;
3637 4088
3638 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3639 4090
3640 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4091 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3641 { 4092 {
3642 waittime = MAX_BLOCKTIME; 4093 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4094
4095#if EV_USE_TIMERFD
4096 /* sleep a lot longer when we can reliably detect timejumps */
4097 if (ecb_expect_true (timerfd >= 0))
4098 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4099#endif
3643 4100
3644 if (timercnt) 4101 if (timercnt)
3645 { 4102 {
3646 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4103 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3647 if (waittime > to) waittime = to; 4104 if (waittime > to) waittime = to;
… …
3654 if (waittime > to) waittime = to; 4111 if (waittime > to) waittime = to;
3655 } 4112 }
3656#endif 4113#endif
3657 4114
3658 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4115 /* don't let timeouts decrease the waittime below timeout_blocktime */
3659 if (expect_false (waittime < timeout_blocktime)) 4116 if (ecb_expect_false (waittime < timeout_blocktime))
3660 waittime = timeout_blocktime; 4117 waittime = timeout_blocktime;
3661 4118
3662 /* at this point, we NEED to wait, so we have to ensure */ 4119 /* now there are two more special cases left, either we have
3663 /* to pass a minimum nonzero value to the backend */ 4120 * already-expired timers, so we should not sleep, or we have timers
4121 * that expire very soon, in which case we need to wait for a minimum
4122 * amount of time for some event loop backends.
4123 */
3664 if (expect_false (waittime < backend_mintime)) 4124 if (ecb_expect_false (waittime < backend_mintime))
4125 waittime = waittime <= EV_TS_CONST (0.)
4126 ? EV_TS_CONST (0.)
3665 waittime = backend_mintime; 4127 : backend_mintime;
3666 4128
3667 /* extra check because io_blocktime is commonly 0 */ 4129 /* extra check because io_blocktime is commonly 0 */
3668 if (expect_false (io_blocktime)) 4130 if (ecb_expect_false (io_blocktime))
3669 { 4131 {
3670 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4132 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3671 4133
3672 if (sleeptime > waittime - backend_mintime) 4134 if (sleeptime > waittime - backend_mintime)
3673 sleeptime = waittime - backend_mintime; 4135 sleeptime = waittime - backend_mintime;
3674 4136
3675 if (expect_true (sleeptime > 0.)) 4137 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3676 { 4138 {
3677 ev_sleep (sleeptime); 4139 ev_sleep (sleeptime);
3678 waittime -= sleeptime; 4140 waittime -= sleeptime;
3679 } 4141 }
3680 } 4142 }
… …
3694 { 4156 {
3695 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4157 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3696 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4158 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3697 } 4159 }
3698 4160
3699
3700 /* update ev_rt_now, do magic */ 4161 /* update ev_rt_now, do magic */
3701 time_update (EV_A_ waittime + sleeptime); 4162 time_update (EV_A_ waittime + sleeptime);
3702 } 4163 }
3703 4164
3704 /* queue pending timers and reschedule them */ 4165 /* queue pending timers and reschedule them */
… …
3712 idle_reify (EV_A); 4173 idle_reify (EV_A);
3713#endif 4174#endif
3714 4175
3715#if EV_CHECK_ENABLE 4176#if EV_CHECK_ENABLE
3716 /* queue check watchers, to be executed first */ 4177 /* queue check watchers, to be executed first */
3717 if (expect_false (checkcnt)) 4178 if (ecb_expect_false (checkcnt))
3718 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4179 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3719#endif 4180#endif
3720 4181
3721 EV_INVOKE_PENDING; 4182 EV_INVOKE_PENDING;
3722 } 4183 }
3723 while (expect_true ( 4184 while (ecb_expect_true (
3724 activecnt 4185 activecnt
3725 && !loop_done 4186 && !loop_done
3726 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4187 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3727 )); 4188 ));
3728 4189
… …
3735 4196
3736 return activecnt; 4197 return activecnt;
3737} 4198}
3738 4199
3739void 4200void
3740ev_break (EV_P_ int how) EV_THROW 4201ev_break (EV_P_ int how) EV_NOEXCEPT
3741{ 4202{
3742 loop_done = how; 4203 loop_done = how;
3743} 4204}
3744 4205
3745void 4206void
3746ev_ref (EV_P) EV_THROW 4207ev_ref (EV_P) EV_NOEXCEPT
3747{ 4208{
3748 ++activecnt; 4209 ++activecnt;
3749} 4210}
3750 4211
3751void 4212void
3752ev_unref (EV_P) EV_THROW 4213ev_unref (EV_P) EV_NOEXCEPT
3753{ 4214{
3754 --activecnt; 4215 --activecnt;
3755} 4216}
3756 4217
3757void 4218void
3758ev_now_update (EV_P) EV_THROW 4219ev_now_update (EV_P) EV_NOEXCEPT
3759{ 4220{
3760 time_update (EV_A_ 1e100); 4221 time_update (EV_A_ EV_TSTAMP_HUGE);
3761} 4222}
3762 4223
3763void 4224void
3764ev_suspend (EV_P) EV_THROW 4225ev_suspend (EV_P) EV_NOEXCEPT
3765{ 4226{
3766 ev_now_update (EV_A); 4227 ev_now_update (EV_A);
3767} 4228}
3768 4229
3769void 4230void
3770ev_resume (EV_P) EV_THROW 4231ev_resume (EV_P) EV_NOEXCEPT
3771{ 4232{
3772 ev_tstamp mn_prev = mn_now; 4233 ev_tstamp mn_prev = mn_now;
3773 4234
3774 ev_now_update (EV_A); 4235 ev_now_update (EV_A);
3775 timers_reschedule (EV_A_ mn_now - mn_prev); 4236 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3792inline_size void 4253inline_size void
3793wlist_del (WL *head, WL elem) 4254wlist_del (WL *head, WL elem)
3794{ 4255{
3795 while (*head) 4256 while (*head)
3796 { 4257 {
3797 if (expect_true (*head == elem)) 4258 if (ecb_expect_true (*head == elem))
3798 { 4259 {
3799 *head = elem->next; 4260 *head = elem->next;
3800 break; 4261 break;
3801 } 4262 }
3802 4263
… …
3814 w->pending = 0; 4275 w->pending = 0;
3815 } 4276 }
3816} 4277}
3817 4278
3818int 4279int
3819ev_clear_pending (EV_P_ void *w) EV_THROW 4280ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3820{ 4281{
3821 W w_ = (W)w; 4282 W w_ = (W)w;
3822 int pending = w_->pending; 4283 int pending = w_->pending;
3823 4284
3824 if (expect_true (pending)) 4285 if (ecb_expect_true (pending))
3825 { 4286 {
3826 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4287 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3827 p->w = (W)&pending_w; 4288 p->w = (W)&pending_w;
3828 w_->pending = 0; 4289 w_->pending = 0;
3829 return p->events; 4290 return p->events;
… …
3856 w->active = 0; 4317 w->active = 0;
3857} 4318}
3858 4319
3859/*****************************************************************************/ 4320/*****************************************************************************/
3860 4321
3861noinline 4322ecb_noinline
3862void 4323void
3863ev_io_start (EV_P_ ev_io *w) EV_THROW 4324ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3864{ 4325{
3865 int fd = w->fd; 4326 int fd = w->fd;
3866 4327
3867 if (expect_false (ev_is_active (w))) 4328 if (ecb_expect_false (ev_is_active (w)))
3868 return; 4329 return;
3869 4330
3870 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4331 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3871 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4332 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3872 4333
4334#if EV_VERIFY >= 2
4335 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4336#endif
3873 EV_FREQUENT_CHECK; 4337 EV_FREQUENT_CHECK;
3874 4338
3875 ev_start (EV_A_ (W)w, 1); 4339 ev_start (EV_A_ (W)w, 1);
3876 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4340 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3877 wlist_add (&anfds[fd].head, (WL)w); 4341 wlist_add (&anfds[fd].head, (WL)w);
3878 4342
3879 /* common bug, apparently */ 4343 /* common bug, apparently */
3880 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4344 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3881 4345
… …
3883 w->events &= ~EV__IOFDSET; 4347 w->events &= ~EV__IOFDSET;
3884 4348
3885 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
3886} 4350}
3887 4351
3888noinline 4352ecb_noinline
3889void 4353void
3890ev_io_stop (EV_P_ ev_io *w) EV_THROW 4354ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3891{ 4355{
3892 clear_pending (EV_A_ (W)w); 4356 clear_pending (EV_A_ (W)w);
3893 if (expect_false (!ev_is_active (w))) 4357 if (ecb_expect_false (!ev_is_active (w)))
3894 return; 4358 return;
3895 4359
3896 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4360 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3897 4361
4362#if EV_VERIFY >= 2
4363 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4364#endif
3898 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3899 4366
3900 wlist_del (&anfds[w->fd].head, (WL)w); 4367 wlist_del (&anfds[w->fd].head, (WL)w);
3901 ev_stop (EV_A_ (W)w); 4368 ev_stop (EV_A_ (W)w);
3902 4369
3903 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4370 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3904 4371
3905 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3906} 4373}
3907 4374
3908noinline 4375ecb_noinline
3909void 4376void
3910ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4377ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3911{ 4378{
3912 if (expect_false (ev_is_active (w))) 4379 if (ecb_expect_false (ev_is_active (w)))
3913 return; 4380 return;
3914 4381
3915 ev_at (w) += mn_now; 4382 ev_at (w) += mn_now;
3916 4383
3917 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4384 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3918 4385
3919 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
3920 4387
3921 ++timercnt; 4388 ++timercnt;
3922 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4389 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3923 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4390 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3924 ANHE_w (timers [ev_active (w)]) = (WT)w; 4391 ANHE_w (timers [ev_active (w)]) = (WT)w;
3925 ANHE_at_cache (timers [ev_active (w)]); 4392 ANHE_at_cache (timers [ev_active (w)]);
3926 upheap (timers, ev_active (w)); 4393 upheap (timers, ev_active (w));
3927 4394
3928 EV_FREQUENT_CHECK; 4395 EV_FREQUENT_CHECK;
3929 4396
3930 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4397 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3931} 4398}
3932 4399
3933noinline 4400ecb_noinline
3934void 4401void
3935ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4402ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3936{ 4403{
3937 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3938 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3939 return; 4406 return;
3940 4407
3941 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3942 4409
3943 { 4410 {
… …
3945 4412
3946 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4413 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3947 4414
3948 --timercnt; 4415 --timercnt;
3949 4416
3950 if (expect_true (active < timercnt + HEAP0)) 4417 if (ecb_expect_true (active < timercnt + HEAP0))
3951 { 4418 {
3952 timers [active] = timers [timercnt + HEAP0]; 4419 timers [active] = timers [timercnt + HEAP0];
3953 adjustheap (timers, timercnt, active); 4420 adjustheap (timers, timercnt, active);
3954 } 4421 }
3955 } 4422 }
… …
3959 ev_stop (EV_A_ (W)w); 4426 ev_stop (EV_A_ (W)w);
3960 4427
3961 EV_FREQUENT_CHECK; 4428 EV_FREQUENT_CHECK;
3962} 4429}
3963 4430
3964noinline 4431ecb_noinline
3965void 4432void
3966ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4433ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3967{ 4434{
3968 EV_FREQUENT_CHECK; 4435 EV_FREQUENT_CHECK;
3969 4436
3970 clear_pending (EV_A_ (W)w); 4437 clear_pending (EV_A_ (W)w);
3971 4438
… …
3988 4455
3989 EV_FREQUENT_CHECK; 4456 EV_FREQUENT_CHECK;
3990} 4457}
3991 4458
3992ev_tstamp 4459ev_tstamp
3993ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4460ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3994{ 4461{
3995 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4462 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3996} 4463}
3997 4464
3998#if EV_PERIODIC_ENABLE 4465#if EV_PERIODIC_ENABLE
3999noinline 4466ecb_noinline
4000void 4467void
4001ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4468ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4002{ 4469{
4003 if (expect_false (ev_is_active (w))) 4470 if (ecb_expect_false (ev_is_active (w)))
4004 return; 4471 return;
4472
4473#if EV_USE_TIMERFD
4474 if (timerfd == -2)
4475 evtimerfd_init (EV_A);
4476#endif
4005 4477
4006 if (w->reschedule_cb) 4478 if (w->reschedule_cb)
4007 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4479 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4008 else if (w->interval) 4480 else if (w->interval)
4009 { 4481 {
… …
4015 4487
4016 EV_FREQUENT_CHECK; 4488 EV_FREQUENT_CHECK;
4017 4489
4018 ++periodiccnt; 4490 ++periodiccnt;
4019 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4491 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4020 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4492 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4021 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4493 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4022 ANHE_at_cache (periodics [ev_active (w)]); 4494 ANHE_at_cache (periodics [ev_active (w)]);
4023 upheap (periodics, ev_active (w)); 4495 upheap (periodics, ev_active (w));
4024 4496
4025 EV_FREQUENT_CHECK; 4497 EV_FREQUENT_CHECK;
4026 4498
4027 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4499 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4028} 4500}
4029 4501
4030noinline 4502ecb_noinline
4031void 4503void
4032ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4504ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4033{ 4505{
4034 clear_pending (EV_A_ (W)w); 4506 clear_pending (EV_A_ (W)w);
4035 if (expect_false (!ev_is_active (w))) 4507 if (ecb_expect_false (!ev_is_active (w)))
4036 return; 4508 return;
4037 4509
4038 EV_FREQUENT_CHECK; 4510 EV_FREQUENT_CHECK;
4039 4511
4040 { 4512 {
… …
4042 4514
4043 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4515 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4044 4516
4045 --periodiccnt; 4517 --periodiccnt;
4046 4518
4047 if (expect_true (active < periodiccnt + HEAP0)) 4519 if (ecb_expect_true (active < periodiccnt + HEAP0))
4048 { 4520 {
4049 periodics [active] = periodics [periodiccnt + HEAP0]; 4521 periodics [active] = periodics [periodiccnt + HEAP0];
4050 adjustheap (periodics, periodiccnt, active); 4522 adjustheap (periodics, periodiccnt, active);
4051 } 4523 }
4052 } 4524 }
… …
4054 ev_stop (EV_A_ (W)w); 4526 ev_stop (EV_A_ (W)w);
4055 4527
4056 EV_FREQUENT_CHECK; 4528 EV_FREQUENT_CHECK;
4057} 4529}
4058 4530
4059noinline 4531ecb_noinline
4060void 4532void
4061ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4533ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4062{ 4534{
4063 /* TODO: use adjustheap and recalculation */ 4535 /* TODO: use adjustheap and recalculation */
4064 ev_periodic_stop (EV_A_ w); 4536 ev_periodic_stop (EV_A_ w);
4065 ev_periodic_start (EV_A_ w); 4537 ev_periodic_start (EV_A_ w);
4066} 4538}
… …
4070# define SA_RESTART 0 4542# define SA_RESTART 0
4071#endif 4543#endif
4072 4544
4073#if EV_SIGNAL_ENABLE 4545#if EV_SIGNAL_ENABLE
4074 4546
4075noinline 4547ecb_noinline
4076void 4548void
4077ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4549ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4078{ 4550{
4079 if (expect_false (ev_is_active (w))) 4551 if (ecb_expect_false (ev_is_active (w)))
4080 return; 4552 return;
4081 4553
4082 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4554 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4083 4555
4084#if EV_MULTIPLICITY 4556#if EV_MULTIPLICITY
… …
4153 } 4625 }
4154 4626
4155 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
4156} 4628}
4157 4629
4158noinline 4630ecb_noinline
4159void 4631void
4160ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4632ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4161{ 4633{
4162 clear_pending (EV_A_ (W)w); 4634 clear_pending (EV_A_ (W)w);
4163 if (expect_false (!ev_is_active (w))) 4635 if (ecb_expect_false (!ev_is_active (w)))
4164 return; 4636 return;
4165 4637
4166 EV_FREQUENT_CHECK; 4638 EV_FREQUENT_CHECK;
4167 4639
4168 wlist_del (&signals [w->signum - 1].head, (WL)w); 4640 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4196#endif 4668#endif
4197 4669
4198#if EV_CHILD_ENABLE 4670#if EV_CHILD_ENABLE
4199 4671
4200void 4672void
4201ev_child_start (EV_P_ ev_child *w) EV_THROW 4673ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4202{ 4674{
4203#if EV_MULTIPLICITY 4675#if EV_MULTIPLICITY
4204 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4676 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4205#endif 4677#endif
4206 if (expect_false (ev_is_active (w))) 4678 if (ecb_expect_false (ev_is_active (w)))
4207 return; 4679 return;
4208 4680
4209 EV_FREQUENT_CHECK; 4681 EV_FREQUENT_CHECK;
4210 4682
4211 ev_start (EV_A_ (W)w, 1); 4683 ev_start (EV_A_ (W)w, 1);
… …
4213 4685
4214 EV_FREQUENT_CHECK; 4686 EV_FREQUENT_CHECK;
4215} 4687}
4216 4688
4217void 4689void
4218ev_child_stop (EV_P_ ev_child *w) EV_THROW 4690ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4219{ 4691{
4220 clear_pending (EV_A_ (W)w); 4692 clear_pending (EV_A_ (W)w);
4221 if (expect_false (!ev_is_active (w))) 4693 if (ecb_expect_false (!ev_is_active (w)))
4222 return; 4694 return;
4223 4695
4224 EV_FREQUENT_CHECK; 4696 EV_FREQUENT_CHECK;
4225 4697
4226 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4698 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4240 4712
4241#define DEF_STAT_INTERVAL 5.0074891 4713#define DEF_STAT_INTERVAL 5.0074891
4242#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4714#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4243#define MIN_STAT_INTERVAL 0.1074891 4715#define MIN_STAT_INTERVAL 0.1074891
4244 4716
4245noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4717ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4246 4718
4247#if EV_USE_INOTIFY 4719#if EV_USE_INOTIFY
4248 4720
4249/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4721/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4250# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4722# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4251 4723
4252noinline 4724ecb_noinline
4253static void 4725static void
4254infy_add (EV_P_ ev_stat *w) 4726infy_add (EV_P_ ev_stat *w)
4255{ 4727{
4256 w->wd = inotify_add_watch (fs_fd, w->path, 4728 w->wd = inotify_add_watch (fs_fd, w->path,
4257 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4729 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4322 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4794 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4323 ev_timer_again (EV_A_ &w->timer); 4795 ev_timer_again (EV_A_ &w->timer);
4324 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4796 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4325} 4797}
4326 4798
4327noinline 4799ecb_noinline
4328static void 4800static void
4329infy_del (EV_P_ ev_stat *w) 4801infy_del (EV_P_ ev_stat *w)
4330{ 4802{
4331 int slot; 4803 int slot;
4332 int wd = w->wd; 4804 int wd = w->wd;
… …
4340 4812
4341 /* remove this watcher, if others are watching it, they will rearm */ 4813 /* remove this watcher, if others are watching it, they will rearm */
4342 inotify_rm_watch (fs_fd, wd); 4814 inotify_rm_watch (fs_fd, wd);
4343} 4815}
4344 4816
4345noinline 4817ecb_noinline
4346static void 4818static void
4347infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4819infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4348{ 4820{
4349 if (slot < 0) 4821 if (slot < 0)
4350 /* overflow, need to check for all hash slots */ 4822 /* overflow, need to check for all hash slots */
… …
4488#else 4960#else
4489# define EV_LSTAT(p,b) lstat (p, b) 4961# define EV_LSTAT(p,b) lstat (p, b)
4490#endif 4962#endif
4491 4963
4492void 4964void
4493ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4965ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4494{ 4966{
4495 if (lstat (w->path, &w->attr) < 0) 4967 if (lstat (w->path, &w->attr) < 0)
4496 w->attr.st_nlink = 0; 4968 w->attr.st_nlink = 0;
4497 else if (!w->attr.st_nlink) 4969 else if (!w->attr.st_nlink)
4498 w->attr.st_nlink = 1; 4970 w->attr.st_nlink = 1;
4499} 4971}
4500 4972
4501noinline 4973ecb_noinline
4502static void 4974static void
4503stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4975stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4504{ 4976{
4505 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4977 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4506 4978
… …
4538 ev_feed_event (EV_A_ w, EV_STAT); 5010 ev_feed_event (EV_A_ w, EV_STAT);
4539 } 5011 }
4540} 5012}
4541 5013
4542void 5014void
4543ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5015ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4544{ 5016{
4545 if (expect_false (ev_is_active (w))) 5017 if (ecb_expect_false (ev_is_active (w)))
4546 return; 5018 return;
4547 5019
4548 ev_stat_stat (EV_A_ w); 5020 ev_stat_stat (EV_A_ w);
4549 5021
4550 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5022 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4569 5041
4570 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4571} 5043}
4572 5044
4573void 5045void
4574ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5046ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4575{ 5047{
4576 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4577 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4578 return; 5050 return;
4579 5051
4580 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4581 5053
4582#if EV_USE_INOTIFY 5054#if EV_USE_INOTIFY
… …
4595} 5067}
4596#endif 5068#endif
4597 5069
4598#if EV_IDLE_ENABLE 5070#if EV_IDLE_ENABLE
4599void 5071void
4600ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5072ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4601{ 5073{
4602 if (expect_false (ev_is_active (w))) 5074 if (ecb_expect_false (ev_is_active (w)))
4603 return; 5075 return;
4604 5076
4605 pri_adjust (EV_A_ (W)w); 5077 pri_adjust (EV_A_ (W)w);
4606 5078
4607 EV_FREQUENT_CHECK; 5079 EV_FREQUENT_CHECK;
… …
4610 int active = ++idlecnt [ABSPRI (w)]; 5082 int active = ++idlecnt [ABSPRI (w)];
4611 5083
4612 ++idleall; 5084 ++idleall;
4613 ev_start (EV_A_ (W)w, active); 5085 ev_start (EV_A_ (W)w, active);
4614 5086
4615 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5087 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4616 idles [ABSPRI (w)][active - 1] = w; 5088 idles [ABSPRI (w)][active - 1] = w;
4617 } 5089 }
4618 5090
4619 EV_FREQUENT_CHECK; 5091 EV_FREQUENT_CHECK;
4620} 5092}
4621 5093
4622void 5094void
4623ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5095ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4624{ 5096{
4625 clear_pending (EV_A_ (W)w); 5097 clear_pending (EV_A_ (W)w);
4626 if (expect_false (!ev_is_active (w))) 5098 if (ecb_expect_false (!ev_is_active (w)))
4627 return; 5099 return;
4628 5100
4629 EV_FREQUENT_CHECK; 5101 EV_FREQUENT_CHECK;
4630 5102
4631 { 5103 {
… …
4642} 5114}
4643#endif 5115#endif
4644 5116
4645#if EV_PREPARE_ENABLE 5117#if EV_PREPARE_ENABLE
4646void 5118void
4647ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5119ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4648{ 5120{
4649 if (expect_false (ev_is_active (w))) 5121 if (ecb_expect_false (ev_is_active (w)))
4650 return; 5122 return;
4651 5123
4652 EV_FREQUENT_CHECK; 5124 EV_FREQUENT_CHECK;
4653 5125
4654 ev_start (EV_A_ (W)w, ++preparecnt); 5126 ev_start (EV_A_ (W)w, ++preparecnt);
4655 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5127 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4656 prepares [preparecnt - 1] = w; 5128 prepares [preparecnt - 1] = w;
4657 5129
4658 EV_FREQUENT_CHECK; 5130 EV_FREQUENT_CHECK;
4659} 5131}
4660 5132
4661void 5133void
4662ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5134ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4663{ 5135{
4664 clear_pending (EV_A_ (W)w); 5136 clear_pending (EV_A_ (W)w);
4665 if (expect_false (!ev_is_active (w))) 5137 if (ecb_expect_false (!ev_is_active (w)))
4666 return; 5138 return;
4667 5139
4668 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4669 5141
4670 { 5142 {
… …
4680} 5152}
4681#endif 5153#endif
4682 5154
4683#if EV_CHECK_ENABLE 5155#if EV_CHECK_ENABLE
4684void 5156void
4685ev_check_start (EV_P_ ev_check *w) EV_THROW 5157ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4686{ 5158{
4687 if (expect_false (ev_is_active (w))) 5159 if (ecb_expect_false (ev_is_active (w)))
4688 return; 5160 return;
4689 5161
4690 EV_FREQUENT_CHECK; 5162 EV_FREQUENT_CHECK;
4691 5163
4692 ev_start (EV_A_ (W)w, ++checkcnt); 5164 ev_start (EV_A_ (W)w, ++checkcnt);
4693 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5165 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4694 checks [checkcnt - 1] = w; 5166 checks [checkcnt - 1] = w;
4695 5167
4696 EV_FREQUENT_CHECK; 5168 EV_FREQUENT_CHECK;
4697} 5169}
4698 5170
4699void 5171void
4700ev_check_stop (EV_P_ ev_check *w) EV_THROW 5172ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4701{ 5173{
4702 clear_pending (EV_A_ (W)w); 5174 clear_pending (EV_A_ (W)w);
4703 if (expect_false (!ev_is_active (w))) 5175 if (ecb_expect_false (!ev_is_active (w)))
4704 return; 5176 return;
4705 5177
4706 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4707 5179
4708 { 5180 {
… …
4717 EV_FREQUENT_CHECK; 5189 EV_FREQUENT_CHECK;
4718} 5190}
4719#endif 5191#endif
4720 5192
4721#if EV_EMBED_ENABLE 5193#if EV_EMBED_ENABLE
4722noinline 5194ecb_noinline
4723void 5195void
4724ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5196ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4725{ 5197{
4726 ev_run (w->other, EVRUN_NOWAIT); 5198 ev_run (w->other, EVRUN_NOWAIT);
4727} 5199}
4728 5200
4729static void 5201static void
… …
4751 ev_run (EV_A_ EVRUN_NOWAIT); 5223 ev_run (EV_A_ EVRUN_NOWAIT);
4752 } 5224 }
4753 } 5225 }
4754} 5226}
4755 5227
5228#if EV_FORK_ENABLE
4756static void 5229static void
4757embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5230embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4758{ 5231{
4759 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5232 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4760 5233
… …
4767 ev_run (EV_A_ EVRUN_NOWAIT); 5240 ev_run (EV_A_ EVRUN_NOWAIT);
4768 } 5241 }
4769 5242
4770 ev_embed_start (EV_A_ w); 5243 ev_embed_start (EV_A_ w);
4771} 5244}
5245#endif
4772 5246
4773#if 0 5247#if 0
4774static void 5248static void
4775embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5249embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4776{ 5250{
4777 ev_idle_stop (EV_A_ idle); 5251 ev_idle_stop (EV_A_ idle);
4778} 5252}
4779#endif 5253#endif
4780 5254
4781void 5255void
4782ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5256ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4783{ 5257{
4784 if (expect_false (ev_is_active (w))) 5258 if (ecb_expect_false (ev_is_active (w)))
4785 return; 5259 return;
4786 5260
4787 { 5261 {
4788 EV_P = w->other; 5262 EV_P = w->other;
4789 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5263 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4797 5271
4798 ev_prepare_init (&w->prepare, embed_prepare_cb); 5272 ev_prepare_init (&w->prepare, embed_prepare_cb);
4799 ev_set_priority (&w->prepare, EV_MINPRI); 5273 ev_set_priority (&w->prepare, EV_MINPRI);
4800 ev_prepare_start (EV_A_ &w->prepare); 5274 ev_prepare_start (EV_A_ &w->prepare);
4801 5275
5276#if EV_FORK_ENABLE
4802 ev_fork_init (&w->fork, embed_fork_cb); 5277 ev_fork_init (&w->fork, embed_fork_cb);
4803 ev_fork_start (EV_A_ &w->fork); 5278 ev_fork_start (EV_A_ &w->fork);
5279#endif
4804 5280
4805 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5281 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4806 5282
4807 ev_start (EV_A_ (W)w, 1); 5283 ev_start (EV_A_ (W)w, 1);
4808 5284
4809 EV_FREQUENT_CHECK; 5285 EV_FREQUENT_CHECK;
4810} 5286}
4811 5287
4812void 5288void
4813ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5289ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4814{ 5290{
4815 clear_pending (EV_A_ (W)w); 5291 clear_pending (EV_A_ (W)w);
4816 if (expect_false (!ev_is_active (w))) 5292 if (ecb_expect_false (!ev_is_active (w)))
4817 return; 5293 return;
4818 5294
4819 EV_FREQUENT_CHECK; 5295 EV_FREQUENT_CHECK;
4820 5296
4821 ev_io_stop (EV_A_ &w->io); 5297 ev_io_stop (EV_A_ &w->io);
4822 ev_prepare_stop (EV_A_ &w->prepare); 5298 ev_prepare_stop (EV_A_ &w->prepare);
5299#if EV_FORK_ENABLE
4823 ev_fork_stop (EV_A_ &w->fork); 5300 ev_fork_stop (EV_A_ &w->fork);
5301#endif
4824 5302
4825 ev_stop (EV_A_ (W)w); 5303 ev_stop (EV_A_ (W)w);
4826 5304
4827 EV_FREQUENT_CHECK; 5305 EV_FREQUENT_CHECK;
4828} 5306}
4829#endif 5307#endif
4830 5308
4831#if EV_FORK_ENABLE 5309#if EV_FORK_ENABLE
4832void 5310void
4833ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5311ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4834{ 5312{
4835 if (expect_false (ev_is_active (w))) 5313 if (ecb_expect_false (ev_is_active (w)))
4836 return; 5314 return;
4837 5315
4838 EV_FREQUENT_CHECK; 5316 EV_FREQUENT_CHECK;
4839 5317
4840 ev_start (EV_A_ (W)w, ++forkcnt); 5318 ev_start (EV_A_ (W)w, ++forkcnt);
4841 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5319 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4842 forks [forkcnt - 1] = w; 5320 forks [forkcnt - 1] = w;
4843 5321
4844 EV_FREQUENT_CHECK; 5322 EV_FREQUENT_CHECK;
4845} 5323}
4846 5324
4847void 5325void
4848ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5326ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4849{ 5327{
4850 clear_pending (EV_A_ (W)w); 5328 clear_pending (EV_A_ (W)w);
4851 if (expect_false (!ev_is_active (w))) 5329 if (ecb_expect_false (!ev_is_active (w)))
4852 return; 5330 return;
4853 5331
4854 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4855 5333
4856 { 5334 {
… …
4866} 5344}
4867#endif 5345#endif
4868 5346
4869#if EV_CLEANUP_ENABLE 5347#if EV_CLEANUP_ENABLE
4870void 5348void
4871ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5349ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4872{ 5350{
4873 if (expect_false (ev_is_active (w))) 5351 if (ecb_expect_false (ev_is_active (w)))
4874 return; 5352 return;
4875 5353
4876 EV_FREQUENT_CHECK; 5354 EV_FREQUENT_CHECK;
4877 5355
4878 ev_start (EV_A_ (W)w, ++cleanupcnt); 5356 ev_start (EV_A_ (W)w, ++cleanupcnt);
4879 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5357 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4880 cleanups [cleanupcnt - 1] = w; 5358 cleanups [cleanupcnt - 1] = w;
4881 5359
4882 /* cleanup watchers should never keep a refcount on the loop */ 5360 /* cleanup watchers should never keep a refcount on the loop */
4883 ev_unref (EV_A); 5361 ev_unref (EV_A);
4884 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4885} 5363}
4886 5364
4887void 5365void
4888ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5366ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4889{ 5367{
4890 clear_pending (EV_A_ (W)w); 5368 clear_pending (EV_A_ (W)w);
4891 if (expect_false (!ev_is_active (w))) 5369 if (ecb_expect_false (!ev_is_active (w)))
4892 return; 5370 return;
4893 5371
4894 EV_FREQUENT_CHECK; 5372 EV_FREQUENT_CHECK;
4895 ev_ref (EV_A); 5373 ev_ref (EV_A);
4896 5374
… …
4907} 5385}
4908#endif 5386#endif
4909 5387
4910#if EV_ASYNC_ENABLE 5388#if EV_ASYNC_ENABLE
4911void 5389void
4912ev_async_start (EV_P_ ev_async *w) EV_THROW 5390ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4913{ 5391{
4914 if (expect_false (ev_is_active (w))) 5392 if (ecb_expect_false (ev_is_active (w)))
4915 return; 5393 return;
4916 5394
4917 w->sent = 0; 5395 w->sent = 0;
4918 5396
4919 evpipe_init (EV_A); 5397 evpipe_init (EV_A);
4920 5398
4921 EV_FREQUENT_CHECK; 5399 EV_FREQUENT_CHECK;
4922 5400
4923 ev_start (EV_A_ (W)w, ++asynccnt); 5401 ev_start (EV_A_ (W)w, ++asynccnt);
4924 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5402 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4925 asyncs [asynccnt - 1] = w; 5403 asyncs [asynccnt - 1] = w;
4926 5404
4927 EV_FREQUENT_CHECK; 5405 EV_FREQUENT_CHECK;
4928} 5406}
4929 5407
4930void 5408void
4931ev_async_stop (EV_P_ ev_async *w) EV_THROW 5409ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4932{ 5410{
4933 clear_pending (EV_A_ (W)w); 5411 clear_pending (EV_A_ (W)w);
4934 if (expect_false (!ev_is_active (w))) 5412 if (ecb_expect_false (!ev_is_active (w)))
4935 return; 5413 return;
4936 5414
4937 EV_FREQUENT_CHECK; 5415 EV_FREQUENT_CHECK;
4938 5416
4939 { 5417 {
… …
4947 5425
4948 EV_FREQUENT_CHECK; 5426 EV_FREQUENT_CHECK;
4949} 5427}
4950 5428
4951void 5429void
4952ev_async_send (EV_P_ ev_async *w) EV_THROW 5430ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4953{ 5431{
4954 w->sent = 1; 5432 w->sent = 1;
4955 evpipe_write (EV_A_ &async_pending); 5433 evpipe_write (EV_A_ &async_pending);
4956} 5434}
4957#endif 5435#endif
… …
4994 5472
4995 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5473 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4996} 5474}
4997 5475
4998void 5476void
4999ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5477ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
5000{ 5478{
5001 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5479 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
5002
5003 if (expect_false (!once))
5004 {
5005 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5006 return;
5007 }
5008 5480
5009 once->cb = cb; 5481 once->cb = cb;
5010 once->arg = arg; 5482 once->arg = arg;
5011 5483
5012 ev_init (&once->io, once_cb_io); 5484 ev_init (&once->io, once_cb_io);
… …
5027/*****************************************************************************/ 5499/*****************************************************************************/
5028 5500
5029#if EV_WALK_ENABLE 5501#if EV_WALK_ENABLE
5030ecb_cold 5502ecb_cold
5031void 5503void
5032ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5504ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5033{ 5505{
5034 int i, j; 5506 int i, j;
5035 ev_watcher_list *wl, *wn; 5507 ev_watcher_list *wl, *wn;
5036 5508
5037 if (types & (EV_IO | EV_EMBED)) 5509 if (types & (EV_IO | EV_EMBED))

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