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Comparing libev/ev.c (file contents):
Revision 1.489 by root, Sat Dec 29 14:23:20 2018 UTC vs.
Revision 1.536 by root, Wed Aug 10 16:50:05 2022 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007-2018 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2020 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 *
… …
35 * and other provisions required by the GPL. If you do not delete the 35 * and other provisions required by the GPL. If you do not delete the
36 * provisions above, a recipient may use your version of this file under 36 * provisions above, a recipient may use your version of this file under
37 * either the BSD or the GPL. 37 * either the BSD or the GPL.
38 */ 38 */
39 39
40#pragma clang diagnostic ignored "-Wunused-value"
41#pragma clang diagnostic ignored "-Wcomment"
42#pragma clang diagnostic ignored "-Wextern-initializer"
43
40/* this big block deduces configuration from config.h */ 44/* this big block deduces configuration from config.h */
41#ifndef EV_STANDALONE 45#ifndef EV_STANDALONE
42# ifdef EV_CONFIG_H 46# ifdef EV_CONFIG_H
43# include EV_CONFIG_H 47# include EV_CONFIG_H
44# else 48# else
… …
115# else 119# else
116# undef EV_USE_EPOLL 120# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 121# define EV_USE_EPOLL 0
118# endif 122# endif
119 123
124# if HAVE_LINUX_AIO_ABI_H
125# ifndef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
127# endif
128# else
129# undef EV_USE_LINUXAIO
130# define EV_USE_LINUXAIO 0
131# endif
132
133# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
134# ifndef EV_USE_IOURING
135# define EV_USE_IOURING EV_FEATURE_BACKENDS
136# endif
137# else
138# undef EV_USE_IOURING
139# define EV_USE_IOURING 0
140# endif
141
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 142# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 143# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 144# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 145# endif
124# else 146# else
… …
159# endif 181# endif
160# else 182# else
161# undef EV_USE_EVENTFD 183# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 184# define EV_USE_EVENTFD 0
163# endif 185# endif
164 186
187# if HAVE_SYS_TIMERFD_H
188# ifndef EV_USE_TIMERFD
189# define EV_USE_TIMERFD EV_FEATURE_OS
190# endif
191# else
192# undef EV_USE_TIMERFD
193# define EV_USE_TIMERFD 0
194# endif
195
165#endif 196#endif
166 197
167/* OS X, in its infinite idiocy, actually HARDCODES 198/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains, 199 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were 200 * OS X engineers apparently have a vacuum. Or maybe they were
… …
315 346
316#ifndef EV_USE_PORT 347#ifndef EV_USE_PORT
317# define EV_USE_PORT 0 348# define EV_USE_PORT 0
318#endif 349#endif
319 350
351#ifndef EV_USE_LINUXAIO
352# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
353# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
354# else
355# define EV_USE_LINUXAIO 0
356# endif
357#endif
358
359#ifndef EV_USE_IOURING
360# if __linux /* later checks might disable again */
361# define EV_USE_IOURING 1
362# else
363# define EV_USE_IOURING 0
364# endif
365#endif
366
320#ifndef EV_USE_INOTIFY 367#ifndef EV_USE_INOTIFY
321# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 368# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
322# define EV_USE_INOTIFY EV_FEATURE_OS 369# define EV_USE_INOTIFY EV_FEATURE_OS
323# else 370# else
324# define EV_USE_INOTIFY 0 371# define EV_USE_INOTIFY 0
… …
344#ifndef EV_USE_SIGNALFD 391#ifndef EV_USE_SIGNALFD
345# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 392# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
346# define EV_USE_SIGNALFD EV_FEATURE_OS 393# define EV_USE_SIGNALFD EV_FEATURE_OS
347# else 394# else
348# define EV_USE_SIGNALFD 0 395# define EV_USE_SIGNALFD 0
396# endif
397#endif
398
399#ifndef EV_USE_TIMERFD
400# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
401# define EV_USE_TIMERFD EV_FEATURE_OS
402# else
403# define EV_USE_TIMERFD 0
349# endif 404# endif
350#endif 405#endif
351 406
352#if 0 /* debugging */ 407#if 0 /* debugging */
353# define EV_VERIFY 3 408# define EV_VERIFY 3
… …
389# include <sys/syscall.h> 444# include <sys/syscall.h>
390# ifdef SYS_clock_gettime 445# ifdef SYS_clock_gettime
391# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 446# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
392# undef EV_USE_MONOTONIC 447# undef EV_USE_MONOTONIC
393# define EV_USE_MONOTONIC 1 448# define EV_USE_MONOTONIC 1
449# define EV_NEED_SYSCALL 1
394# else 450# else
395# undef EV_USE_CLOCK_SYSCALL 451# undef EV_USE_CLOCK_SYSCALL
396# define EV_USE_CLOCK_SYSCALL 0 452# define EV_USE_CLOCK_SYSCALL 0
397# endif 453# endif
398#endif 454#endif
… …
412#if !EV_STAT_ENABLE 468#if !EV_STAT_ENABLE
413# undef EV_USE_INOTIFY 469# undef EV_USE_INOTIFY
414# define EV_USE_INOTIFY 0 470# define EV_USE_INOTIFY 0
415#endif 471#endif
416 472
473#if __linux && EV_USE_IOURING
474# include <linux/version.h>
475# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
476# undef EV_USE_IOURING
477# define EV_USE_IOURING 0
478# endif
479#endif
480
417#if !EV_USE_NANOSLEEP 481#if !EV_USE_NANOSLEEP
418/* hp-ux has it in sys/time.h, which we unconditionally include above */ 482/* hp-ux has it in sys/time.h, which we unconditionally include above */
419# if !defined _WIN32 && !defined __hpux 483# if !defined _WIN32 && !defined __hpux
420# include <sys/select.h> 484# include <sys/select.h>
485# endif
486#endif
487
488#if EV_USE_LINUXAIO
489# include <sys/syscall.h>
490# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
491# define EV_NEED_SYSCALL 1
492# else
493# undef EV_USE_LINUXAIO
494# define EV_USE_LINUXAIO 0
495# endif
496#endif
497
498#if EV_USE_IOURING
499# include <sys/syscall.h>
500# if !SYS_io_uring_register && __linux && !__alpha
501# define SYS_io_uring_setup 425
502# define SYS_io_uring_enter 426
503# define SYS_io_uring_register 427
504# endif
505# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
506# define EV_NEED_SYSCALL 1
507# else
508# undef EV_USE_IOURING
509# define EV_USE_IOURING 0
421# endif 510# endif
422#endif 511#endif
423 512
424#if EV_USE_INOTIFY 513#if EV_USE_INOTIFY
425# include <sys/statfs.h> 514# include <sys/statfs.h>
… …
430# define EV_USE_INOTIFY 0 519# define EV_USE_INOTIFY 0
431# endif 520# endif
432#endif 521#endif
433 522
434#if EV_USE_EVENTFD 523#if EV_USE_EVENTFD
435/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 524/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
436# include <stdint.h> 525# include <stdint.h>
437# ifndef EFD_NONBLOCK 526# ifndef EFD_NONBLOCK
438# define EFD_NONBLOCK O_NONBLOCK 527# define EFD_NONBLOCK O_NONBLOCK
439# endif 528# endif
440# ifndef EFD_CLOEXEC 529# ifndef EFD_CLOEXEC
… …
446# endif 535# endif
447EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 536EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
448#endif 537#endif
449 538
450#if EV_USE_SIGNALFD 539#if EV_USE_SIGNALFD
451/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 540/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
452# include <stdint.h> 541# include <stdint.h>
453# ifndef SFD_NONBLOCK 542# ifndef SFD_NONBLOCK
454# define SFD_NONBLOCK O_NONBLOCK 543# define SFD_NONBLOCK O_NONBLOCK
455# endif 544# endif
456# ifndef SFD_CLOEXEC 545# ifndef SFD_CLOEXEC
… …
458# define SFD_CLOEXEC O_CLOEXEC 547# define SFD_CLOEXEC O_CLOEXEC
459# else 548# else
460# define SFD_CLOEXEC 02000000 549# define SFD_CLOEXEC 02000000
461# endif 550# endif
462# endif 551# endif
463EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 552EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
464 553
465struct signalfd_siginfo 554struct signalfd_siginfo
466{ 555{
467 uint32_t ssi_signo; 556 uint32_t ssi_signo;
468 char pad[128 - sizeof (uint32_t)]; 557 char pad[128 - sizeof (uint32_t)];
469}; 558};
470#endif 559#endif
471 560
472/**/ 561/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
562#if EV_USE_TIMERFD
563# include <sys/timerfd.h>
564/* timerfd is only used for periodics */
565# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
566# undef EV_USE_TIMERFD
567# define EV_USE_TIMERFD 0
568# endif
569#endif
570
571/*****************************************************************************/
473 572
474#if EV_VERIFY >= 3 573#if EV_VERIFY >= 3
475# define EV_FREQUENT_CHECK ev_verify (EV_A) 574# define EV_FREQUENT_CHECK ev_verify (EV_A)
476#else 575#else
477# define EV_FREQUENT_CHECK do { } while (0) 576# define EV_FREQUENT_CHECK do { } while (0)
… …
482 * This value is good at least till the year 4000. 581 * This value is good at least till the year 4000.
483 */ 582 */
484#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 583#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 584/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
486 585
487#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 586#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) */ 587#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
588#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
489 589
590/* find a portable timestamp that is "always" in the future but fits into time_t.
591 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
592 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
593#define EV_TSTAMP_HUGE \
594 (sizeof (time_t) >= 8 ? 10000000000000. \
595 : 0 < (time_t)4294967295 ? 4294967295. \
596 : 2147483647.) \
597
598#ifndef EV_TS_CONST
599# define EV_TS_CONST(nv) nv
600# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
601# 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) 602# 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) 603# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
604# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
605# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
606#endif
492 607
493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 608/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
494/* ECB.H BEGIN */ 609/* ECB.H BEGIN */
495/* 610/*
496 * libecb - http://software.schmorp.de/pkg/libecb 611 * libecb - http://software.schmorp.de/pkg/libecb
497 * 612 *
498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> 613 * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de>
499 * Copyright (©) 2011 Emanuele Giaquinta 614 * Copyright (©) 2011 Emanuele Giaquinta
500 * All rights reserved. 615 * All rights reserved.
501 * 616 *
502 * Redistribution and use in source and binary forms, with or without modifica- 617 * Redistribution and use in source and binary forms, with or without modifica-
503 * tion, are permitted provided that the following conditions are met: 618 * tion, are permitted provided that the following conditions are met:
… …
534 649
535#ifndef ECB_H 650#ifndef ECB_H
536#define ECB_H 651#define ECB_H
537 652
538/* 16 bits major, 16 bits minor */ 653/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005 654#define ECB_VERSION 0x00010008
540 655
541#ifdef _WIN32 656#include <string.h> /* for memcpy */
657
658#if defined (_WIN32) && !defined (__MINGW32__)
542 typedef signed char int8_t; 659 typedef signed char int8_t;
543 typedef unsigned char uint8_t; 660 typedef unsigned char uint8_t;
661 typedef signed char int_fast8_t;
662 typedef unsigned char uint_fast8_t;
544 typedef signed short int16_t; 663 typedef signed short int16_t;
545 typedef unsigned short uint16_t; 664 typedef unsigned short uint16_t;
665 typedef signed int int_fast16_t;
666 typedef unsigned int uint_fast16_t;
546 typedef signed int int32_t; 667 typedef signed int int32_t;
547 typedef unsigned int uint32_t; 668 typedef unsigned int uint32_t;
669 typedef signed int int_fast32_t;
670 typedef unsigned int uint_fast32_t;
548 #if __GNUC__ 671 #if __GNUC__
549 typedef signed long long int64_t; 672 typedef signed long long int64_t;
550 typedef unsigned long long uint64_t; 673 typedef unsigned long long uint64_t;
551 #else /* _MSC_VER || __BORLANDC__ */ 674 #else /* _MSC_VER || __BORLANDC__ */
552 typedef signed __int64 int64_t; 675 typedef signed __int64 int64_t;
553 typedef unsigned __int64 uint64_t; 676 typedef unsigned __int64 uint64_t;
554 #endif 677 #endif
678 typedef int64_t int_fast64_t;
679 typedef uint64_t uint_fast64_t;
555 #ifdef _WIN64 680 #ifdef _WIN64
556 #define ECB_PTRSIZE 8 681 #define ECB_PTRSIZE 8
557 typedef uint64_t uintptr_t; 682 typedef uint64_t uintptr_t;
558 typedef int64_t intptr_t; 683 typedef int64_t intptr_t;
559 #else 684 #else
… …
571#endif 696#endif
572 697
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 698#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 699#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575 700
701#ifndef ECB_OPTIMIZE_SIZE
702 #if __OPTIMIZE_SIZE__
703 #define ECB_OPTIMIZE_SIZE 1
704 #else
705 #define ECB_OPTIMIZE_SIZE 0
706 #endif
707#endif
708
576/* work around x32 idiocy by defining proper macros */ 709/* work around x32 idiocy by defining proper macros */
577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 710#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578 #if _ILP32 711 #if _ILP32
579 #define ECB_AMD64_X32 1 712 #define ECB_AMD64_X32 1
580 #else 713 #else
… …
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 791 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
659#endif 792#endif
660 793
661#ifndef ECB_MEMORY_FENCE 794#ifndef ECB_MEMORY_FENCE
662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 795 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
796 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
663 #if __i386 || __i386__ 797 #if __i386 || __i386__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 798 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
667 #elif ECB_GCC_AMD64 801 #elif ECB_GCC_AMD64
… …
717 #if ECB_GCC_VERSION(4,7) 851 #if ECB_GCC_VERSION(4,7)
718 /* see comment below (stdatomic.h) about the C11 memory model. */ 852 /* see comment below (stdatomic.h) about the C11 memory model. */
719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 853 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 854 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 855 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
856 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
722 857
723 #elif ECB_CLANG_EXTENSION(c_atomic) 858 #elif ECB_CLANG_EXTENSION(c_atomic)
724 /* see comment below (stdatomic.h) about the C11 memory model. */ 859 /* see comment below (stdatomic.h) about the C11 memory model. */
725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 860 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 861 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 862 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
863 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
728 864
729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 865 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
730 #define ECB_MEMORY_FENCE __sync_synchronize () 866 #define ECB_MEMORY_FENCE __sync_synchronize ()
731 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 867 #elif _MSC_VER >= 1500 /* VC++ 2008 */
732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 868 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
742 #elif defined _WIN32 878 #elif defined _WIN32
743 #include <WinNT.h> 879 #include <WinNT.h>
744 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 880 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
745 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 881 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #include <mbarrier.h> 882 #include <mbarrier.h>
747 #define ECB_MEMORY_FENCE __machine_rw_barrier () 883 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
748 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 884 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
749 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 885 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
886 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
750 #elif __xlC__ 887 #elif __xlC__
751 #define ECB_MEMORY_FENCE __sync () 888 #define ECB_MEMORY_FENCE __sync ()
752 #endif 889 #endif
753#endif 890#endif
754 891
755#ifndef ECB_MEMORY_FENCE 892#ifndef ECB_MEMORY_FENCE
756 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 893 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
757 /* we assume that these memory fences work on all variables/all memory accesses, */ 894 /* we assume that these memory fences work on all variables/all memory accesses, */
758 /* not just C11 atomics and atomic accesses */ 895 /* not just C11 atomics and atomic accesses */
759 #include <stdatomic.h> 896 #include <stdatomic.h>
760 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
761 /* any fence other than seq_cst, which isn't very efficient for us. */
762 /* Why that is, we don't know - either the C11 memory model is quite useless */
763 /* for most usages, or gcc and clang have a bug */
764 /* I *currently* lean towards the latter, and inefficiently implement */
765 /* all three of ecb's fences as a seq_cst fence */
766 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
767 /* for all __atomic_thread_fence's except seq_cst */
768 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 897 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
898 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
899 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
769 #endif 900 #endif
770#endif 901#endif
771 902
772#ifndef ECB_MEMORY_FENCE 903#ifndef ECB_MEMORY_FENCE
773 #if !ECB_AVOID_PTHREADS 904 #if !ECB_AVOID_PTHREADS
… …
791 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
792#endif 923#endif
793 924
794#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 925#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 926 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
927#endif
928
929#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
930 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
796#endif 931#endif
797 932
798/*****************************************************************************/ 933/*****************************************************************************/
799 934
800#if ECB_CPP 935#if ECB_CPP
… …
1084ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1219ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1220ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1221ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1222ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1088 1223
1224#if ECB_CPP
1225
1226inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1227inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1228inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1229inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1230
1231inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1232inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1233inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1234inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1235
1236inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1237inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1238inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1239inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1240
1241inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1242inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1243inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1244inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1245
1246inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1247inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1248inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1249
1250inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1251inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1252inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1253inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1254
1255inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1256inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1257inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1258inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1259
1260#endif
1261
1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1262#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1263 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x) 1264 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else 1265 #else
1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1266 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1164ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1337ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } 1338ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1166ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1339ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } 1340ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1168 1341
1342/*****************************************************************************/
1343/* unaligned load/store */
1344
1345ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1350ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1351ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1354ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1355ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1356
1357ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1362ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1363ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1364
1365ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1370ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1371ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1372
1373ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1374ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1375ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1376
1377ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1378ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1379ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1380
1381ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1382ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1383ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1384
1385#if ECB_CPP
1386
1387inline uint8_t ecb_bswap (uint8_t v) { return v; }
1388inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1389inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1390inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1391
1392template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1393template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1394template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1395template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1396template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1397template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1398template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1399template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1400
1401template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1402template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1403template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1404template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1405template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1406template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1407template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1408template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1409
1410#endif
1411
1412/*****************************************************************************/
1413
1169#if ECB_GCC_VERSION(3,0) || ECB_C99 1414#if ECB_GCC_VERSION(3,0) || ECB_C99
1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1415 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1171#else 1416#else
1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1417 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1173#endif 1418#endif
… …
1196 return N; 1441 return N;
1197 } 1442 }
1198#else 1443#else
1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1444 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1200#endif 1445#endif
1446
1447/*****************************************************************************/
1201 1448
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); 1449ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t 1450ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x) 1451ecb_binary16_to_binary32 (uint32_t x)
1205{ 1452{
… …
1314 || defined __sh__ \ 1561 || defined __sh__ \
1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1562 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1316 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1563 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__ 1564 || defined __aarch64__
1318 #define ECB_STDFP 1 1565 #define ECB_STDFP 1
1319 #include <string.h> /* for memcpy */
1320#else 1566#else
1321 #define ECB_STDFP 0 1567 #define ECB_STDFP 0
1322#endif 1568#endif
1323 1569
1324#ifndef ECB_NO_LIBM 1570#ifndef ECB_NO_LIBM
… …
1509/* ECB.H END */ 1755/* ECB.H END */
1510 1756
1511#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1757#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1512/* if your architecture doesn't need memory fences, e.g. because it is 1758/* if your architecture doesn't need memory fences, e.g. because it is
1513 * single-cpu/core, or if you use libev in a project that doesn't use libev 1759 * single-cpu/core, or if you use libev in a project that doesn't use libev
1514 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1760 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1515 * libev, in which cases the memory fences become nops. 1761 * libev, in which cases the memory fences become nops.
1516 * alternatively, you can remove this #error and link against libpthread, 1762 * alternatively, you can remove this #error and link against libpthread,
1517 * which will then provide the memory fences. 1763 * which will then provide the memory fences.
1518 */ 1764 */
1519# error "memory fences not defined for your architecture, please report" 1765# error "memory fences not defined for your architecture, please report"
… …
1523# define ECB_MEMORY_FENCE do { } while (0) 1769# define ECB_MEMORY_FENCE do { } while (0)
1524# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1770# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1525# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1771# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1526#endif 1772#endif
1527 1773
1528#define expect_false(cond) ecb_expect_false (cond)
1529#define expect_true(cond) ecb_expect_true (cond)
1530#define noinline ecb_noinline
1531
1532#define inline_size ecb_inline 1774#define inline_size ecb_inline
1533 1775
1534#if EV_FEATURE_CODE 1776#if EV_FEATURE_CODE
1535# define inline_speed ecb_inline 1777# define inline_speed ecb_inline
1536#else 1778#else
1537# define inline_speed noinline static 1779# define inline_speed ecb_noinline static
1538#endif 1780#endif
1781
1782/*****************************************************************************/
1783/* raw syscall wrappers */
1784
1785#if EV_NEED_SYSCALL
1786
1787#include <sys/syscall.h>
1788
1789/*
1790 * define some syscall wrappers for common architectures
1791 * this is mostly for nice looks during debugging, not performance.
1792 * our syscalls return < 0, not == -1, on error. which is good
1793 * enough for linux aio.
1794 * TODO: arm is also common nowadays, maybe even mips and x86
1795 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1796 */
1797#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1798 /* the costly errno access probably kills this for size optimisation */
1799
1800 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1801 ({ \
1802 long res; \
1803 register unsigned long r6 __asm__ ("r9" ); \
1804 register unsigned long r5 __asm__ ("r8" ); \
1805 register unsigned long r4 __asm__ ("r10"); \
1806 register unsigned long r3 __asm__ ("rdx"); \
1807 register unsigned long r2 __asm__ ("rsi"); \
1808 register unsigned long r1 __asm__ ("rdi"); \
1809 if (narg >= 6) r6 = (unsigned long)(arg6); \
1810 if (narg >= 5) r5 = (unsigned long)(arg5); \
1811 if (narg >= 4) r4 = (unsigned long)(arg4); \
1812 if (narg >= 3) r3 = (unsigned long)(arg3); \
1813 if (narg >= 2) r2 = (unsigned long)(arg2); \
1814 if (narg >= 1) r1 = (unsigned long)(arg1); \
1815 __asm__ __volatile__ ( \
1816 "syscall\n\t" \
1817 : "=a" (res) \
1818 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1819 : "cc", "r11", "cx", "memory"); \
1820 errno = -res; \
1821 res; \
1822 })
1823
1824#endif
1825
1826#ifdef ev_syscall
1827 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1828 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1829 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1830 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1831 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1832 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1833 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1834#else
1835 #define ev_syscall0(nr) syscall (nr)
1836 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1837 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1838 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1839 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1840 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1841 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1842#endif
1843
1844#endif
1845
1846/*****************************************************************************/
1539 1847
1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1848#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1541 1849
1542#if EV_MINPRI == EV_MAXPRI 1850#if EV_MINPRI == EV_MAXPRI
1543# define ABSPRI(w) (((W)w), 0) 1851# define ABSPRI(w) (((W)w), 0)
1544#else 1852#else
1545# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1853# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1546#endif 1854#endif
1547 1855
1548#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1856#define EMPTY /* required for microsofts broken pseudo-c compiler */
1549#define EMPTY2(a,b) /* used to suppress some warnings */
1550 1857
1551typedef ev_watcher *W; 1858typedef ev_watcher *W;
1552typedef ev_watcher_list *WL; 1859typedef ev_watcher_list *WL;
1553typedef ev_watcher_time *WT; 1860typedef ev_watcher_time *WT;
1554 1861
… …
1579# include "ev_win32.c" 1886# include "ev_win32.c"
1580#endif 1887#endif
1581 1888
1582/*****************************************************************************/ 1889/*****************************************************************************/
1583 1890
1891#if EV_USE_LINUXAIO
1892# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1893#endif
1894
1584/* define a suitable floor function (only used by periodics atm) */ 1895/* define a suitable floor function (only used by periodics atm) */
1585 1896
1586#if EV_USE_FLOOR 1897#if EV_USE_FLOOR
1587# include <math.h> 1898# include <math.h>
1588# define ev_floor(v) floor (v) 1899# define ev_floor(v) floor (v)
1589#else 1900#else
1590 1901
1591#include <float.h> 1902#include <float.h>
1592 1903
1593/* a floor() replacement function, should be independent of ev_tstamp type */ 1904/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline 1905ecb_noinline
1595static ev_tstamp 1906static ev_tstamp
1596ev_floor (ev_tstamp v) 1907ev_floor (ev_tstamp v)
1597{ 1908{
1598 /* the choice of shift factor is not terribly important */ 1909 /* the choice of shift factor is not terribly important */
1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1910#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1911 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1601#else 1912#else
1602 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1913 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1603#endif 1914#endif
1604 1915
1916 /* special treatment for negative arguments */
1917 if (ecb_expect_false (v < 0.))
1918 {
1919 ev_tstamp f = -ev_floor (-v);
1920
1921 return f - (f == v ? 0 : 1);
1922 }
1923
1605 /* argument too large for an unsigned long? */ 1924 /* argument too large for an unsigned long? then reduce it */
1606 if (expect_false (v >= shift)) 1925 if (ecb_expect_false (v >= shift))
1607 { 1926 {
1608 ev_tstamp f; 1927 ev_tstamp f;
1609 1928
1610 if (v == v - 1.) 1929 if (v == v - 1.)
1611 return v; /* very large number */ 1930 return v; /* very large numbers are assumed to be integer */
1612 1931
1613 f = shift * ev_floor (v * (1. / shift)); 1932 f = shift * ev_floor (v * (1. / shift));
1614 return f + ev_floor (v - f); 1933 return f + ev_floor (v - f);
1615 } 1934 }
1616 1935
1617 /* special treatment for negative args? */
1618 if (expect_false (v < 0.))
1619 {
1620 ev_tstamp f = -ev_floor (-v);
1621
1622 return f - (f == v ? 0 : 1);
1623 }
1624
1625 /* fits into an unsigned long */ 1936 /* fits into an unsigned long */
1626 return (unsigned long)v; 1937 return (unsigned long)v;
1627} 1938}
1628 1939
1629#endif 1940#endif
… …
1632 1943
1633#ifdef __linux 1944#ifdef __linux
1634# include <sys/utsname.h> 1945# include <sys/utsname.h>
1635#endif 1946#endif
1636 1947
1637noinline ecb_cold 1948ecb_noinline ecb_cold
1638static unsigned int 1949static unsigned int
1639ev_linux_version (void) 1950ev_linux_version (void)
1640{ 1951{
1641#ifdef __linux 1952#ifdef __linux
1642 unsigned int v = 0; 1953 unsigned int v = 0;
… …
1672} 1983}
1673 1984
1674/*****************************************************************************/ 1985/*****************************************************************************/
1675 1986
1676#if EV_AVOID_STDIO 1987#if EV_AVOID_STDIO
1677noinline ecb_cold 1988ecb_noinline ecb_cold
1678static void 1989static void
1679ev_printerr (const char *msg) 1990ev_printerr (const char *msg)
1680{ 1991{
1681 write (STDERR_FILENO, msg, strlen (msg)); 1992 write (STDERR_FILENO, msg, strlen (msg));
1682} 1993}
… …
1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 2000ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1690{ 2001{
1691 syserr_cb = cb; 2002 syserr_cb = cb;
1692} 2003}
1693 2004
1694noinline ecb_cold 2005ecb_noinline ecb_cold
1695static void 2006static void
1696ev_syserr (const char *msg) 2007ev_syserr (const char *msg)
1697{ 2008{
1698 if (!msg) 2009 if (!msg)
1699 msg = "(libev) system error"; 2010 msg = "(libev) system error";
… …
1770typedef struct 2081typedef struct
1771{ 2082{
1772 WL head; 2083 WL head;
1773 unsigned char events; /* the events watched for */ 2084 unsigned char events; /* the events watched for */
1774 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2085 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1775 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2086 unsigned char emask; /* some backends store the actual kernel mask in here */
1776 unsigned char unused; 2087 unsigned char eflags; /* flags field for use by backends */
1777#if EV_USE_EPOLL 2088#if EV_USE_EPOLL
1778 unsigned int egen; /* generation counter to counter epoll bugs */ 2089 unsigned int egen; /* generation counter to counter epoll bugs */
1779#endif 2090#endif
1780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2091#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1781 SOCKET handle; 2092 SOCKET handle;
… …
1835 static struct ev_loop default_loop_struct; 2146 static struct ev_loop default_loop_struct;
1836 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1837 2148
1838#else 2149#else
1839 2150
1840 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2151 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1841 #define VAR(name,decl) static decl; 2152 #define VAR(name,decl) static decl;
1842 #include "ev_vars.h" 2153 #include "ev_vars.h"
1843 #undef VAR 2154 #undef VAR
1844 2155
1845 static int ev_default_loop_ptr; 2156 static int ev_default_loop_ptr;
1846 2157
1847#endif 2158#endif
1848 2159
1849#if EV_FEATURE_API 2160#if EV_FEATURE_API
1850# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2161# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2162# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1852# define EV_INVOKE_PENDING invoke_cb (EV_A) 2163# define EV_INVOKE_PENDING invoke_cb (EV_A)
1853#else 2164#else
1854# define EV_RELEASE_CB (void)0 2165# define EV_RELEASE_CB (void)0
1855# define EV_ACQUIRE_CB (void)0 2166# define EV_ACQUIRE_CB (void)0
1856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2167# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1863#ifndef EV_HAVE_EV_TIME 2174#ifndef EV_HAVE_EV_TIME
1864ev_tstamp 2175ev_tstamp
1865ev_time (void) EV_NOEXCEPT 2176ev_time (void) EV_NOEXCEPT
1866{ 2177{
1867#if EV_USE_REALTIME 2178#if EV_USE_REALTIME
1868 if (expect_true (have_realtime)) 2179 if (ecb_expect_true (have_realtime))
1869 { 2180 {
1870 struct timespec ts; 2181 struct timespec ts;
1871 clock_gettime (CLOCK_REALTIME, &ts); 2182 clock_gettime (CLOCK_REALTIME, &ts);
1872 return ts.tv_sec + ts.tv_nsec * 1e-9; 2183 return EV_TS_GET (ts);
1873 } 2184 }
1874#endif 2185#endif
1875 2186
2187 {
1876 struct timeval tv; 2188 struct timeval tv;
1877 gettimeofday (&tv, 0); 2189 gettimeofday (&tv, 0);
1878 return tv.tv_sec + tv.tv_usec * 1e-6; 2190 return EV_TV_GET (tv);
2191 }
1879} 2192}
1880#endif 2193#endif
1881 2194
1882inline_size ev_tstamp 2195inline_size ev_tstamp
1883get_clock (void) 2196get_clock (void)
1884{ 2197{
1885#if EV_USE_MONOTONIC 2198#if EV_USE_MONOTONIC
1886 if (expect_true (have_monotonic)) 2199 if (ecb_expect_true (have_monotonic))
1887 { 2200 {
1888 struct timespec ts; 2201 struct timespec ts;
1889 clock_gettime (CLOCK_MONOTONIC, &ts); 2202 clock_gettime (CLOCK_MONOTONIC, &ts);
1890 return ts.tv_sec + ts.tv_nsec * 1e-9; 2203 return EV_TS_GET (ts);
1891 } 2204 }
1892#endif 2205#endif
1893 2206
1894 return ev_time (); 2207 return ev_time ();
1895} 2208}
… …
1903#endif 2216#endif
1904 2217
1905void 2218void
1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2219ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1907{ 2220{
1908 if (delay > 0.) 2221 if (delay > EV_TS_CONST (0.))
1909 { 2222 {
1910#if EV_USE_NANOSLEEP 2223#if EV_USE_NANOSLEEP
1911 struct timespec ts; 2224 struct timespec ts;
1912 2225
1913 EV_TS_SET (ts, delay); 2226 EV_TS_SET (ts, delay);
1914 nanosleep (&ts, 0); 2227 nanosleep (&ts, 0);
1915#elif defined _WIN32 2228#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */ 2229 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */ 2230 /* compared to select (µs) or nanosleep (ns) */
1918 Sleep ((unsigned long)(delay * 1e3)); 2231 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1919#else 2232#else
1920 struct timeval tv; 2233 struct timeval tv;
1921 2234
1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2235 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1923 /* something not guaranteed by newer posix versions, but guaranteed */ 2236 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1953 } 2266 }
1954 2267
1955 return ncur; 2268 return ncur;
1956} 2269}
1957 2270
1958noinline ecb_cold 2271ecb_noinline ecb_cold
1959static void * 2272static void *
1960array_realloc (int elem, void *base, int *cur, int cnt) 2273array_realloc (int elem, void *base, int *cur, int cnt)
1961{ 2274{
1962 *cur = array_nextsize (elem, *cur, cnt); 2275 *cur = array_nextsize (elem, *cur, cnt);
1963 return ev_realloc (base, elem * *cur); 2276 return ev_realloc (base, elem * *cur);
1964} 2277}
1965 2278
2279#define array_needsize_noinit(base,offset,count)
2280
1966#define array_init_zero(base,count) \ 2281#define array_needsize_zerofill(base,offset,count) \
1967 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2282 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1968 2283
1969#define array_needsize(type,base,cur,cnt,init) \ 2284#define array_needsize(type,base,cur,cnt,init) \
1970 if (expect_false ((cnt) > (cur))) \ 2285 if (ecb_expect_false ((cnt) > (cur))) \
1971 { \ 2286 { \
1972 ecb_unused int ocur_ = (cur); \ 2287 ecb_unused int ocur_ = (cur); \
1973 (base) = (type *)array_realloc \ 2288 (base) = (type *)array_realloc \
1974 (sizeof (type), (base), &(cur), (cnt)); \ 2289 (sizeof (type), (base), &(cur), (cnt)); \
1975 init ((base) + (ocur_), (cur) - ocur_); \ 2290 init ((base), ocur_, ((cur) - ocur_)); \
1976 } 2291 }
1977 2292
1978#if 0 2293#if 0
1979#define array_slim(type,stem) \ 2294#define array_slim(type,stem) \
1980 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2295 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1989 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2304 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1990 2305
1991/*****************************************************************************/ 2306/*****************************************************************************/
1992 2307
1993/* dummy callback for pending events */ 2308/* dummy callback for pending events */
1994noinline 2309ecb_noinline
1995static void 2310static void
1996pendingcb (EV_P_ ev_prepare *w, int revents) 2311pendingcb (EV_P_ ev_prepare *w, int revents)
1997{ 2312{
1998} 2313}
1999 2314
2000noinline 2315ecb_noinline
2001void 2316void
2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2317ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2003{ 2318{
2004 W w_ = (W)w; 2319 W w_ = (W)w;
2005 int pri = ABSPRI (w_); 2320 int pri = ABSPRI (w_);
2006 2321
2007 if (expect_false (w_->pending)) 2322 if (ecb_expect_false (w_->pending))
2008 pendings [pri][w_->pending - 1].events |= revents; 2323 pendings [pri][w_->pending - 1].events |= revents;
2009 else 2324 else
2010 { 2325 {
2011 w_->pending = ++pendingcnt [pri]; 2326 w_->pending = ++pendingcnt [pri];
2012 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2327 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2013 pendings [pri][w_->pending - 1].w = w_; 2328 pendings [pri][w_->pending - 1].w = w_;
2014 pendings [pri][w_->pending - 1].events = revents; 2329 pendings [pri][w_->pending - 1].events = revents;
2015 } 2330 }
2016 2331
2017 pendingpri = NUMPRI - 1; 2332 pendingpri = NUMPRI - 1;
2018} 2333}
2019 2334
2020inline_speed void 2335inline_speed void
2021feed_reverse (EV_P_ W w) 2336feed_reverse (EV_P_ W w)
2022{ 2337{
2023 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2338 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2024 rfeeds [rfeedcnt++] = w; 2339 rfeeds [rfeedcnt++] = w;
2025} 2340}
2026 2341
2027inline_size void 2342inline_size void
2028feed_reverse_done (EV_P_ int revents) 2343feed_reverse_done (EV_P_ int revents)
… …
2063inline_speed void 2378inline_speed void
2064fd_event (EV_P_ int fd, int revents) 2379fd_event (EV_P_ int fd, int revents)
2065{ 2380{
2066 ANFD *anfd = anfds + fd; 2381 ANFD *anfd = anfds + fd;
2067 2382
2068 if (expect_true (!anfd->reify)) 2383 if (ecb_expect_true (!anfd->reify))
2069 fd_event_nocheck (EV_A_ fd, revents); 2384 fd_event_nocheck (EV_A_ fd, revents);
2070} 2385}
2071 2386
2072void 2387void
2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2388ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2081inline_size void 2396inline_size void
2082fd_reify (EV_P) 2397fd_reify (EV_P)
2083{ 2398{
2084 int i; 2399 int i;
2085 2400
2401 /* most backends do not modify the fdchanges list in backend_modfiy.
2402 * except io_uring, which has fixed-size buffers which might force us
2403 * to handle events in backend_modify, causing fdchanges to be amended,
2404 * which could result in an endless loop.
2405 * to avoid this, we do not dynamically handle fds that were added
2406 * during fd_reify. that means that for those backends, fdchangecnt
2407 * might be non-zero during poll, which must cause them to not block.
2408 * to not put too much of a burden on other backends, this detail
2409 * needs to be handled in the backend.
2410 */
2411 int changecnt = fdchangecnt;
2412
2086#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2413#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2087 for (i = 0; i < fdchangecnt; ++i) 2414 for (i = 0; i < changecnt; ++i)
2088 { 2415 {
2089 int fd = fdchanges [i]; 2416 int fd = fdchanges [i];
2090 ANFD *anfd = anfds + fd; 2417 ANFD *anfd = anfds + fd;
2091 2418
2092 if (anfd->reify & EV__IOFDSET && anfd->head) 2419 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2106 } 2433 }
2107 } 2434 }
2108 } 2435 }
2109#endif 2436#endif
2110 2437
2111 for (i = 0; i < fdchangecnt; ++i) 2438 for (i = 0; i < changecnt; ++i)
2112 { 2439 {
2113 int fd = fdchanges [i]; 2440 int fd = fdchanges [i];
2114 ANFD *anfd = anfds + fd; 2441 ANFD *anfd = anfds + fd;
2115 ev_io *w; 2442 ev_io *w;
2116 2443
2117 unsigned char o_events = anfd->events; 2444 unsigned char o_events = anfd->events;
2118 unsigned char o_reify = anfd->reify; 2445 unsigned char o_reify = anfd->reify;
2119 2446
2120 anfd->reify = 0; 2447 anfd->reify = 0;
2121 2448
2122 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2449 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2123 { 2450 {
2124 anfd->events = 0; 2451 anfd->events = 0;
2125 2452
2126 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2453 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2127 anfd->events |= (unsigned char)w->events; 2454 anfd->events |= (unsigned char)w->events;
… …
2132 2459
2133 if (o_reify & EV__IOFDSET) 2460 if (o_reify & EV__IOFDSET)
2134 backend_modify (EV_A_ fd, o_events, anfd->events); 2461 backend_modify (EV_A_ fd, o_events, anfd->events);
2135 } 2462 }
2136 2463
2464 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2465 * this is a rare case (see beginning comment in this function), so we copy them to the
2466 * front and hope the backend handles this case.
2467 */
2468 if (ecb_expect_false (fdchangecnt != changecnt))
2469 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2470
2137 fdchangecnt = 0; 2471 fdchangecnt -= changecnt;
2138} 2472}
2139 2473
2140/* something about the given fd changed */ 2474/* something about the given fd changed */
2141inline_size 2475inline_size
2142void 2476void
2143fd_change (EV_P_ int fd, int flags) 2477fd_change (EV_P_ int fd, int flags)
2144{ 2478{
2145 unsigned char reify = anfds [fd].reify; 2479 unsigned char reify = anfds [fd].reify;
2146 anfds [fd].reify |= flags; 2480 anfds [fd].reify = reify | flags;
2147 2481
2148 if (expect_true (!reify)) 2482 if (ecb_expect_true (!reify))
2149 { 2483 {
2150 ++fdchangecnt; 2484 ++fdchangecnt;
2151 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2485 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2152 fdchanges [fdchangecnt - 1] = fd; 2486 fdchanges [fdchangecnt - 1] = fd;
2153 } 2487 }
2154} 2488}
2155 2489
2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2490/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
… …
2176 return fcntl (fd, F_GETFD) != -1; 2510 return fcntl (fd, F_GETFD) != -1;
2177#endif 2511#endif
2178} 2512}
2179 2513
2180/* called on EBADF to verify fds */ 2514/* called on EBADF to verify fds */
2181noinline ecb_cold 2515ecb_noinline ecb_cold
2182static void 2516static void
2183fd_ebadf (EV_P) 2517fd_ebadf (EV_P)
2184{ 2518{
2185 int fd; 2519 int fd;
2186 2520
… …
2189 if (!fd_valid (fd) && errno == EBADF) 2523 if (!fd_valid (fd) && errno == EBADF)
2190 fd_kill (EV_A_ fd); 2524 fd_kill (EV_A_ fd);
2191} 2525}
2192 2526
2193/* called on ENOMEM in select/poll to kill some fds and retry */ 2527/* called on ENOMEM in select/poll to kill some fds and retry */
2194noinline ecb_cold 2528ecb_noinline ecb_cold
2195static void 2529static void
2196fd_enomem (EV_P) 2530fd_enomem (EV_P)
2197{ 2531{
2198 int fd; 2532 int fd;
2199 2533
… …
2204 break; 2538 break;
2205 } 2539 }
2206} 2540}
2207 2541
2208/* usually called after fork if backend needs to re-arm all fds from scratch */ 2542/* usually called after fork if backend needs to re-arm all fds from scratch */
2209noinline 2543ecb_noinline
2210static void 2544static void
2211fd_rearm_all (EV_P) 2545fd_rearm_all (EV_P)
2212{ 2546{
2213 int fd; 2547 int fd;
2214 2548
… …
2268 ev_tstamp minat; 2602 ev_tstamp minat;
2269 ANHE *minpos; 2603 ANHE *minpos;
2270 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2604 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2271 2605
2272 /* find minimum child */ 2606 /* find minimum child */
2273 if (expect_true (pos + DHEAP - 1 < E)) 2607 if (ecb_expect_true (pos + DHEAP - 1 < E))
2274 { 2608 {
2275 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2609 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2610 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2277 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2611 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2278 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2612 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2279 } 2613 }
2280 else if (pos < E) 2614 else if (pos < E)
2281 { 2615 {
2282 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2616 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2283 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2617 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2284 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2618 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2285 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2619 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2286 } 2620 }
2287 else 2621 else
2288 break; 2622 break;
2289 2623
2290 if (ANHE_at (he) <= minat) 2624 if (ANHE_at (he) <= minat)
… …
2298 2632
2299 heap [k] = he; 2633 heap [k] = he;
2300 ev_active (ANHE_w (he)) = k; 2634 ev_active (ANHE_w (he)) = k;
2301} 2635}
2302 2636
2303#else /* 4HEAP */ 2637#else /* not 4HEAP */
2304 2638
2305#define HEAP0 1 2639#define HEAP0 1
2306#define HPARENT(k) ((k) >> 1) 2640#define HPARENT(k) ((k) >> 1)
2307#define UPHEAP_DONE(p,k) (!(p)) 2641#define UPHEAP_DONE(p,k) (!(p))
2308 2642
… …
2380 upheap (heap, i + HEAP0); 2714 upheap (heap, i + HEAP0);
2381} 2715}
2382 2716
2383/*****************************************************************************/ 2717/*****************************************************************************/
2384 2718
2385/* associate signal watchers to a signal signal */ 2719/* associate signal watchers to a signal */
2386typedef struct 2720typedef struct
2387{ 2721{
2388 EV_ATOMIC_T pending; 2722 EV_ATOMIC_T pending;
2389#if EV_MULTIPLICITY 2723#if EV_MULTIPLICITY
2390 EV_P; 2724 EV_P;
… …
2396 2730
2397/*****************************************************************************/ 2731/*****************************************************************************/
2398 2732
2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2733#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2400 2734
2401noinline ecb_cold 2735ecb_noinline ecb_cold
2402static void 2736static void
2403evpipe_init (EV_P) 2737evpipe_init (EV_P)
2404{ 2738{
2405 if (!ev_is_active (&pipe_w)) 2739 if (!ev_is_active (&pipe_w))
2406 { 2740 {
… …
2447inline_speed void 2781inline_speed void
2448evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2782evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2449{ 2783{
2450 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2784 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2451 2785
2452 if (expect_true (*flag)) 2786 if (ecb_expect_true (*flag))
2453 return; 2787 return;
2454 2788
2455 *flag = 1; 2789 *flag = 1;
2456 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2790 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2457 2791
… …
2534 sig_pending = 0; 2868 sig_pending = 0;
2535 2869
2536 ECB_MEMORY_FENCE; 2870 ECB_MEMORY_FENCE;
2537 2871
2538 for (i = EV_NSIG - 1; i--; ) 2872 for (i = EV_NSIG - 1; i--; )
2539 if (expect_false (signals [i].pending)) 2873 if (ecb_expect_false (signals [i].pending))
2540 ev_feed_signal_event (EV_A_ i + 1); 2874 ev_feed_signal_event (EV_A_ i + 1);
2541 } 2875 }
2542#endif 2876#endif
2543 2877
2544#if EV_ASYNC_ENABLE 2878#if EV_ASYNC_ENABLE
… …
2585#endif 2919#endif
2586 2920
2587 ev_feed_signal (signum); 2921 ev_feed_signal (signum);
2588} 2922}
2589 2923
2590noinline 2924ecb_noinline
2591void 2925void
2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2926ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2593{ 2927{
2594 WL w; 2928 WL w;
2595 2929
2596 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2930 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2597 return; 2931 return;
2598 2932
2599 --signum; 2933 --signum;
2600 2934
2601#if EV_MULTIPLICITY 2935#if EV_MULTIPLICITY
2602 /* it is permissible to try to feed a signal to the wrong loop */ 2936 /* it is permissible to try to feed a signal to the wrong loop */
2603 /* or, likely more useful, feeding a signal nobody is waiting for */ 2937 /* or, likely more useful, feeding a signal nobody is waiting for */
2604 2938
2605 if (expect_false (signals [signum].loop != EV_A)) 2939 if (ecb_expect_false (signals [signum].loop != EV_A))
2606 return; 2940 return;
2607#endif 2941#endif
2608 2942
2609 signals [signum].pending = 0; 2943 signals [signum].pending = 0;
2610 ECB_MEMORY_FENCE_RELEASE; 2944 ECB_MEMORY_FENCE_RELEASE;
… …
2694 3028
2695#endif 3029#endif
2696 3030
2697/*****************************************************************************/ 3031/*****************************************************************************/
2698 3032
3033#if EV_USE_TIMERFD
3034
3035static void periodics_reschedule (EV_P);
3036
3037static void
3038timerfdcb (EV_P_ ev_io *iow, int revents)
3039{
3040 struct itimerspec its = { 0 };
3041
3042 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3043 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3044
3045 ev_rt_now = ev_time ();
3046 /* periodics_reschedule only needs ev_rt_now */
3047 /* but maybe in the future we want the full treatment. */
3048 /*
3049 now_floor = EV_TS_CONST (0.);
3050 time_update (EV_A_ EV_TSTAMP_HUGE);
3051 */
3052#if EV_PERIODIC_ENABLE
3053 periodics_reschedule (EV_A);
3054#endif
3055}
3056
3057ecb_noinline ecb_cold
3058static void
3059evtimerfd_init (EV_P)
3060{
3061 if (!ev_is_active (&timerfd_w))
3062 {
3063 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3064
3065 if (timerfd >= 0)
3066 {
3067 fd_intern (timerfd); /* just to be sure */
3068
3069 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3070 ev_set_priority (&timerfd_w, EV_MINPRI);
3071 ev_io_start (EV_A_ &timerfd_w);
3072 ev_unref (EV_A); /* watcher should not keep loop alive */
3073
3074 /* (re-) arm timer */
3075 timerfdcb (EV_A_ 0, 0);
3076 }
3077 }
3078}
3079
3080#endif
3081
3082/*****************************************************************************/
3083
2699#if EV_USE_IOCP 3084#if EV_USE_IOCP
2700# include "ev_iocp.c" 3085# include "ev_iocp.c"
2701#endif 3086#endif
2702#if EV_USE_PORT 3087#if EV_USE_PORT
2703# include "ev_port.c" 3088# include "ev_port.c"
… …
2705#if EV_USE_KQUEUE 3090#if EV_USE_KQUEUE
2706# include "ev_kqueue.c" 3091# include "ev_kqueue.c"
2707#endif 3092#endif
2708#if EV_USE_EPOLL 3093#if EV_USE_EPOLL
2709# include "ev_epoll.c" 3094# include "ev_epoll.c"
3095#endif
3096#if EV_USE_LINUXAIO
3097# include "ev_linuxaio.c"
3098#endif
3099#if EV_USE_IOURING
3100# include "ev_iouring.c"
2710#endif 3101#endif
2711#if EV_USE_POLL 3102#if EV_USE_POLL
2712# include "ev_poll.c" 3103# include "ev_poll.c"
2713#endif 3104#endif
2714#if EV_USE_SELECT 3105#if EV_USE_SELECT
… …
2743unsigned int 3134unsigned int
2744ev_supported_backends (void) EV_NOEXCEPT 3135ev_supported_backends (void) EV_NOEXCEPT
2745{ 3136{
2746 unsigned int flags = 0; 3137 unsigned int flags = 0;
2747 3138
2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3139 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3140 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2750 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3141 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2751 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3142 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3143 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2753 3144 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3145 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3146
2754 return flags; 3147 return flags;
2755} 3148}
2756 3149
2757ecb_cold 3150ecb_cold
2758unsigned int 3151unsigned int
… …
2772#endif 3165#endif
2773#ifdef __FreeBSD__ 3166#ifdef __FreeBSD__
2774 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3167 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2775#endif 3168#endif
2776 3169
3170 /* TODO: linuxaio is very experimental */
3171#if !EV_RECOMMEND_LINUXAIO
3172 flags &= ~EVBACKEND_LINUXAIO;
3173#endif
3174 /* TODO: iouring is super experimental */
3175#if !EV_RECOMMEND_IOURING
3176 flags &= ~EVBACKEND_IOURING;
3177#endif
3178
2777 return flags; 3179 return flags;
2778} 3180}
2779 3181
2780ecb_cold 3182ecb_cold
2781unsigned int 3183unsigned int
2782ev_embeddable_backends (void) EV_NOEXCEPT 3184ev_embeddable_backends (void) EV_NOEXCEPT
2783{ 3185{
2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3186 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2785 3187
2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3188 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2787 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3189 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2788 flags &= ~EVBACKEND_EPOLL; 3190 flags &= ~EVBACKEND_EPOLL;
2789 3191
3192 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3193
2790 return flags; 3194 return flags;
2791} 3195}
2792 3196
2793unsigned int 3197unsigned int
2794ev_backend (EV_P) EV_NOEXCEPT 3198ev_backend (EV_P) EV_NOEXCEPT
… …
2846 acquire_cb = acquire; 3250 acquire_cb = acquire;
2847} 3251}
2848#endif 3252#endif
2849 3253
2850/* initialise a loop structure, must be zero-initialised */ 3254/* initialise a loop structure, must be zero-initialised */
2851noinline ecb_cold 3255ecb_noinline ecb_cold
2852static void 3256static void
2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3257loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2854{ 3258{
2855 if (!backend) 3259 if (!backend)
2856 { 3260 {
… …
2911 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3315 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2912#endif 3316#endif
2913#if EV_USE_SIGNALFD 3317#if EV_USE_SIGNALFD
2914 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3318 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2915#endif 3319#endif
3320#if EV_USE_TIMERFD
3321 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3322#endif
2916 3323
2917 if (!(flags & EVBACKEND_MASK)) 3324 if (!(flags & EVBACKEND_MASK))
2918 flags |= ev_recommended_backends (); 3325 flags |= ev_recommended_backends ();
2919 3326
2920#if EV_USE_IOCP 3327#if EV_USE_IOCP
2921 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2922#endif 3329#endif
2923#if EV_USE_PORT 3330#if EV_USE_PORT
2924 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3331 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2925#endif 3332#endif
2926#if EV_USE_KQUEUE 3333#if EV_USE_KQUEUE
2927 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3334 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3335#endif
3336#if EV_USE_IOURING
3337 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3338#endif
3339#if EV_USE_LINUXAIO
3340 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2928#endif 3341#endif
2929#if EV_USE_EPOLL 3342#if EV_USE_EPOLL
2930 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3343 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2931#endif 3344#endif
2932#if EV_USE_POLL 3345#if EV_USE_POLL
2933 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3346 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2934#endif 3347#endif
2935#if EV_USE_SELECT 3348#if EV_USE_SELECT
2936 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3349 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2937#endif 3350#endif
2938 3351
2939 ev_prepare_init (&pending_w, pendingcb); 3352 ev_prepare_init (&pending_w, pendingcb);
2940 3353
2941#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3354#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2958 return; 3371 return;
2959#endif 3372#endif
2960 3373
2961#if EV_CLEANUP_ENABLE 3374#if EV_CLEANUP_ENABLE
2962 /* queue cleanup watchers (and execute them) */ 3375 /* queue cleanup watchers (and execute them) */
2963 if (expect_false (cleanupcnt)) 3376 if (ecb_expect_false (cleanupcnt))
2964 { 3377 {
2965 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3378 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2966 EV_INVOKE_PENDING; 3379 EV_INVOKE_PENDING;
2967 } 3380 }
2968#endif 3381#endif
… …
2987#if EV_USE_SIGNALFD 3400#if EV_USE_SIGNALFD
2988 if (ev_is_active (&sigfd_w)) 3401 if (ev_is_active (&sigfd_w))
2989 close (sigfd); 3402 close (sigfd);
2990#endif 3403#endif
2991 3404
3405#if EV_USE_TIMERFD
3406 if (ev_is_active (&timerfd_w))
3407 close (timerfd);
3408#endif
3409
2992#if EV_USE_INOTIFY 3410#if EV_USE_INOTIFY
2993 if (fs_fd >= 0) 3411 if (fs_fd >= 0)
2994 close (fs_fd); 3412 close (fs_fd);
2995#endif 3413#endif
2996 3414
2997 if (backend_fd >= 0) 3415 if (backend_fd >= 0)
2998 close (backend_fd); 3416 close (backend_fd);
2999 3417
3000#if EV_USE_IOCP 3418#if EV_USE_IOCP
3001 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3419 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
3002#endif 3420#endif
3003#if EV_USE_PORT 3421#if EV_USE_PORT
3004 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3422 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3005#endif 3423#endif
3006#if EV_USE_KQUEUE 3424#if EV_USE_KQUEUE
3007 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3425 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3426#endif
3427#if EV_USE_IOURING
3428 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3429#endif
3430#if EV_USE_LINUXAIO
3431 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3008#endif 3432#endif
3009#if EV_USE_EPOLL 3433#if EV_USE_EPOLL
3010 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3434 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3011#endif 3435#endif
3012#if EV_USE_POLL 3436#if EV_USE_POLL
3013 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3437 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3014#endif 3438#endif
3015#if EV_USE_SELECT 3439#if EV_USE_SELECT
3016 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3440 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3017#endif 3441#endif
3018 3442
3019 for (i = NUMPRI; i--; ) 3443 for (i = NUMPRI; i--; )
3020 { 3444 {
3021 array_free (pending, [i]); 3445 array_free (pending, [i]);
… …
3063 3487
3064inline_size void 3488inline_size void
3065loop_fork (EV_P) 3489loop_fork (EV_P)
3066{ 3490{
3067#if EV_USE_PORT 3491#if EV_USE_PORT
3068 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3492 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3069#endif 3493#endif
3070#if EV_USE_KQUEUE 3494#if EV_USE_KQUEUE
3071 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3495 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3496#endif
3497#if EV_USE_IOURING
3498 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3499#endif
3500#if EV_USE_LINUXAIO
3501 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3072#endif 3502#endif
3073#if EV_USE_EPOLL 3503#if EV_USE_EPOLL
3074 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3504 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3075#endif 3505#endif
3076#if EV_USE_INOTIFY 3506#if EV_USE_INOTIFY
3077 infy_fork (EV_A); 3507 infy_fork (EV_A);
3078#endif 3508#endif
3079 3509
3510 if (postfork != 2)
3511 {
3512 #if EV_USE_SIGNALFD
3513 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3514 #endif
3515
3516 #if EV_USE_TIMERFD
3517 if (ev_is_active (&timerfd_w))
3518 {
3519 ev_ref (EV_A);
3520 ev_io_stop (EV_A_ &timerfd_w);
3521
3522 close (timerfd);
3523 timerfd = -2;
3524
3525 evtimerfd_init (EV_A);
3526 /* reschedule periodics, in case we missed something */
3527 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3528 }
3529 #endif
3530
3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3531 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3081 if (ev_is_active (&pipe_w) && postfork != 2) 3532 if (ev_is_active (&pipe_w))
3082 { 3533 {
3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3534 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3084 3535
3085 ev_ref (EV_A); 3536 ev_ref (EV_A);
3086 ev_io_stop (EV_A_ &pipe_w); 3537 ev_io_stop (EV_A_ &pipe_w);
3087 3538
3088 if (evpipe [0] >= 0) 3539 if (evpipe [0] >= 0)
3089 EV_WIN32_CLOSE_FD (evpipe [0]); 3540 EV_WIN32_CLOSE_FD (evpipe [0]);
3090 3541
3091 evpipe_init (EV_A); 3542 evpipe_init (EV_A);
3092 /* iterate over everything, in case we missed something before */ 3543 /* iterate over everything, in case we missed something before */
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3544 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3545 }
3546 #endif
3094 } 3547 }
3095#endif
3096 3548
3097 postfork = 0; 3549 postfork = 0;
3098} 3550}
3099 3551
3100#if EV_MULTIPLICITY 3552#if EV_MULTIPLICITY
… …
3116} 3568}
3117 3569
3118#endif /* multiplicity */ 3570#endif /* multiplicity */
3119 3571
3120#if EV_VERIFY 3572#if EV_VERIFY
3121noinline ecb_cold 3573ecb_noinline ecb_cold
3122static void 3574static void
3123verify_watcher (EV_P_ W w) 3575verify_watcher (EV_P_ W w)
3124{ 3576{
3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3577 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3126 3578
3127 if (w->pending) 3579 if (w->pending)
3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3580 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3129} 3581}
3130 3582
3131noinline ecb_cold 3583ecb_noinline ecb_cold
3132static void 3584static void
3133verify_heap (EV_P_ ANHE *heap, int N) 3585verify_heap (EV_P_ ANHE *heap, int N)
3134{ 3586{
3135 int i; 3587 int i;
3136 3588
… …
3142 3594
3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3595 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3144 } 3596 }
3145} 3597}
3146 3598
3147noinline ecb_cold 3599ecb_noinline ecb_cold
3148static void 3600static void
3149array_verify (EV_P_ W *ws, int cnt) 3601array_verify (EV_P_ W *ws, int cnt)
3150{ 3602{
3151 while (cnt--) 3603 while (cnt--)
3152 { 3604 {
… …
3301 count += pendingcnt [pri]; 3753 count += pendingcnt [pri];
3302 3754
3303 return count; 3755 return count;
3304} 3756}
3305 3757
3306noinline 3758ecb_noinline
3307void 3759void
3308ev_invoke_pending (EV_P) 3760ev_invoke_pending (EV_P)
3309{ 3761{
3310 pendingpri = NUMPRI; 3762 pendingpri = NUMPRI;
3311 3763
… …
3330/* make idle watchers pending. this handles the "call-idle */ 3782/* make idle watchers pending. this handles the "call-idle */
3331/* only when higher priorities are idle" logic */ 3783/* only when higher priorities are idle" logic */
3332inline_size void 3784inline_size void
3333idle_reify (EV_P) 3785idle_reify (EV_P)
3334{ 3786{
3335 if (expect_false (idleall)) 3787 if (ecb_expect_false (idleall))
3336 { 3788 {
3337 int pri; 3789 int pri;
3338 3790
3339 for (pri = NUMPRI; pri--; ) 3791 for (pri = NUMPRI; pri--; )
3340 { 3792 {
… …
3370 { 3822 {
3371 ev_at (w) += w->repeat; 3823 ev_at (w) += w->repeat;
3372 if (ev_at (w) < mn_now) 3824 if (ev_at (w) < mn_now)
3373 ev_at (w) = mn_now; 3825 ev_at (w) = mn_now;
3374 3826
3375 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3827 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3376 3828
3377 ANHE_at_cache (timers [HEAP0]); 3829 ANHE_at_cache (timers [HEAP0]);
3378 downheap (timers, timercnt, HEAP0); 3830 downheap (timers, timercnt, HEAP0);
3379 } 3831 }
3380 else 3832 else
… …
3389 } 3841 }
3390} 3842}
3391 3843
3392#if EV_PERIODIC_ENABLE 3844#if EV_PERIODIC_ENABLE
3393 3845
3394noinline 3846ecb_noinline
3395static void 3847static void
3396periodic_recalc (EV_P_ ev_periodic *w) 3848periodic_recalc (EV_P_ ev_periodic *w)
3397{ 3849{
3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3850 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3399 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3851 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3402 while (at <= ev_rt_now) 3854 while (at <= ev_rt_now)
3403 { 3855 {
3404 ev_tstamp nat = at + w->interval; 3856 ev_tstamp nat = at + w->interval;
3405 3857
3406 /* when resolution fails us, we use ev_rt_now */ 3858 /* when resolution fails us, we use ev_rt_now */
3407 if (expect_false (nat == at)) 3859 if (ecb_expect_false (nat == at))
3408 { 3860 {
3409 at = ev_rt_now; 3861 at = ev_rt_now;
3410 break; 3862 break;
3411 } 3863 }
3412 3864
… …
3458 } 3910 }
3459} 3911}
3460 3912
3461/* simply recalculate all periodics */ 3913/* simply recalculate all periodics */
3462/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3914/* TODO: maybe ensure that at least one event happens when jumping forward? */
3463noinline ecb_cold 3915ecb_noinline ecb_cold
3464static void 3916static void
3465periodics_reschedule (EV_P) 3917periodics_reschedule (EV_P)
3466{ 3918{
3467 int i; 3919 int i;
3468 3920
… …
3482 reheap (periodics, periodiccnt); 3934 reheap (periodics, periodiccnt);
3483} 3935}
3484#endif 3936#endif
3485 3937
3486/* adjust all timers by a given offset */ 3938/* adjust all timers by a given offset */
3487noinline ecb_cold 3939ecb_noinline ecb_cold
3488static void 3940static void
3489timers_reschedule (EV_P_ ev_tstamp adjust) 3941timers_reschedule (EV_P_ ev_tstamp adjust)
3490{ 3942{
3491 int i; 3943 int i;
3492 3944
… …
3502/* also detect if there was a timejump, and act accordingly */ 3954/* also detect if there was a timejump, and act accordingly */
3503inline_speed void 3955inline_speed void
3504time_update (EV_P_ ev_tstamp max_block) 3956time_update (EV_P_ ev_tstamp max_block)
3505{ 3957{
3506#if EV_USE_MONOTONIC 3958#if EV_USE_MONOTONIC
3507 if (expect_true (have_monotonic)) 3959 if (ecb_expect_true (have_monotonic))
3508 { 3960 {
3509 int i; 3961 int i;
3510 ev_tstamp odiff = rtmn_diff; 3962 ev_tstamp odiff = rtmn_diff;
3511 3963
3512 mn_now = get_clock (); 3964 mn_now = get_clock ();
3513 3965
3514 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3966 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3515 /* interpolate in the meantime */ 3967 /* interpolate in the meantime */
3516 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3968 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3517 { 3969 {
3518 ev_rt_now = rtmn_diff + mn_now; 3970 ev_rt_now = rtmn_diff + mn_now;
3519 return; 3971 return;
3520 } 3972 }
3521 3973
… …
3535 ev_tstamp diff; 3987 ev_tstamp diff;
3536 rtmn_diff = ev_rt_now - mn_now; 3988 rtmn_diff = ev_rt_now - mn_now;
3537 3989
3538 diff = odiff - rtmn_diff; 3990 diff = odiff - rtmn_diff;
3539 3991
3540 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3992 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3541 return; /* all is well */ 3993 return; /* all is well */
3542 3994
3543 ev_rt_now = ev_time (); 3995 ev_rt_now = ev_time ();
3544 mn_now = get_clock (); 3996 mn_now = get_clock ();
3545 now_floor = mn_now; 3997 now_floor = mn_now;
… …
3554 else 4006 else
3555#endif 4007#endif
3556 { 4008 {
3557 ev_rt_now = ev_time (); 4009 ev_rt_now = ev_time ();
3558 4010
3559 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4011 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3560 { 4012 {
3561 /* adjust timers. this is easy, as the offset is the same for all of them */ 4013 /* adjust timers. this is easy, as the offset is the same for all of them */
3562 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4014 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3563#if EV_PERIODIC_ENABLE 4015#if EV_PERIODIC_ENABLE
3564 periodics_reschedule (EV_A); 4016 periodics_reschedule (EV_A);
… …
3587#if EV_VERIFY >= 2 4039#if EV_VERIFY >= 2
3588 ev_verify (EV_A); 4040 ev_verify (EV_A);
3589#endif 4041#endif
3590 4042
3591#ifndef _WIN32 4043#ifndef _WIN32
3592 if (expect_false (curpid)) /* penalise the forking check even more */ 4044 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3593 if (expect_false (getpid () != curpid)) 4045 if (ecb_expect_false (getpid () != curpid))
3594 { 4046 {
3595 curpid = getpid (); 4047 curpid = getpid ();
3596 postfork = 1; 4048 postfork = 1;
3597 } 4049 }
3598#endif 4050#endif
3599 4051
3600#if EV_FORK_ENABLE 4052#if EV_FORK_ENABLE
3601 /* we might have forked, so queue fork handlers */ 4053 /* we might have forked, so queue fork handlers */
3602 if (expect_false (postfork)) 4054 if (ecb_expect_false (postfork))
3603 if (forkcnt) 4055 if (forkcnt)
3604 { 4056 {
3605 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4057 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3606 EV_INVOKE_PENDING; 4058 EV_INVOKE_PENDING;
3607 } 4059 }
3608#endif 4060#endif
3609 4061
3610#if EV_PREPARE_ENABLE 4062#if EV_PREPARE_ENABLE
3611 /* queue prepare watchers (and execute them) */ 4063 /* queue prepare watchers (and execute them) */
3612 if (expect_false (preparecnt)) 4064 if (ecb_expect_false (preparecnt))
3613 { 4065 {
3614 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4066 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3615 EV_INVOKE_PENDING; 4067 EV_INVOKE_PENDING;
3616 } 4068 }
3617#endif 4069#endif
3618 4070
3619 if (expect_false (loop_done)) 4071 if (ecb_expect_false (loop_done))
3620 break; 4072 break;
3621 4073
3622 /* we might have forked, so reify kernel state if necessary */ 4074 /* we might have forked, so reify kernel state if necessary */
3623 if (expect_false (postfork)) 4075 if (ecb_expect_false (postfork))
3624 loop_fork (EV_A); 4076 loop_fork (EV_A);
3625 4077
3626 /* update fd-related kernel structures */ 4078 /* update fd-related kernel structures */
3627 fd_reify (EV_A); 4079 fd_reify (EV_A);
3628 4080
… …
3633 4085
3634 /* remember old timestamp for io_blocktime calculation */ 4086 /* remember old timestamp for io_blocktime calculation */
3635 ev_tstamp prev_mn_now = mn_now; 4087 ev_tstamp prev_mn_now = mn_now;
3636 4088
3637 /* update time to cancel out callback processing overhead */ 4089 /* update time to cancel out callback processing overhead */
3638 time_update (EV_A_ 1e100); 4090 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3639 4091
3640 /* from now on, we want a pipe-wake-up */ 4092 /* from now on, we want a pipe-wake-up */
3641 pipe_write_wanted = 1; 4093 pipe_write_wanted = 1;
3642 4094
3643 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4095 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3644 4096
3645 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4097 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3646 { 4098 {
3647 waittime = MAX_BLOCKTIME; 4099 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4100
4101#if EV_USE_MONOTONIC
4102 if (ecb_expect_true (have_monotonic))
4103 {
4104#if EV_USE_TIMERFD
4105 /* sleep a lot longer when we can reliably detect timejumps */
4106 if (ecb_expect_true (timerfd != -1))
4107 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4108#endif
4109#if !EV_PERIODIC_ENABLE
4110 /* without periodics but with monotonic clock there is no need */
4111 /* for any time jump detection, so sleep longer */
4112 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4113#endif
4114 }
4115#endif
3648 4116
3649 if (timercnt) 4117 if (timercnt)
3650 { 4118 {
3651 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4119 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3652 if (waittime > to) waittime = to; 4120 if (waittime > to) waittime = to;
… …
3659 if (waittime > to) waittime = to; 4127 if (waittime > to) waittime = to;
3660 } 4128 }
3661#endif 4129#endif
3662 4130
3663 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4131 /* don't let timeouts decrease the waittime below timeout_blocktime */
3664 if (expect_false (waittime < timeout_blocktime)) 4132 if (ecb_expect_false (waittime < timeout_blocktime))
3665 waittime = timeout_blocktime; 4133 waittime = timeout_blocktime;
3666 4134
3667 /* at this point, we NEED to wait, so we have to ensure */ 4135 /* now there are two more special cases left, either we have
3668 /* to pass a minimum nonzero value to the backend */ 4136 * already-expired timers, so we should not sleep, or we have timers
4137 * that expire very soon, in which case we need to wait for a minimum
4138 * amount of time for some event loop backends.
4139 */
3669 if (expect_false (waittime < backend_mintime)) 4140 if (ecb_expect_false (waittime < backend_mintime))
4141 waittime = waittime <= EV_TS_CONST (0.)
4142 ? EV_TS_CONST (0.)
3670 waittime = backend_mintime; 4143 : backend_mintime;
3671 4144
3672 /* extra check because io_blocktime is commonly 0 */ 4145 /* extra check because io_blocktime is commonly 0 */
3673 if (expect_false (io_blocktime)) 4146 if (ecb_expect_false (io_blocktime))
3674 { 4147 {
3675 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4148 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3676 4149
3677 if (sleeptime > waittime - backend_mintime) 4150 if (sleeptime > waittime - backend_mintime)
3678 sleeptime = waittime - backend_mintime; 4151 sleeptime = waittime - backend_mintime;
3679 4152
3680 if (expect_true (sleeptime > 0.)) 4153 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3681 { 4154 {
3682 ev_sleep (sleeptime); 4155 ev_sleep (sleeptime);
3683 waittime -= sleeptime; 4156 waittime -= sleeptime;
3684 } 4157 }
3685 } 4158 }
… …
3699 { 4172 {
3700 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4173 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3701 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4174 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3702 } 4175 }
3703 4176
3704
3705 /* update ev_rt_now, do magic */ 4177 /* update ev_rt_now, do magic */
3706 time_update (EV_A_ waittime + sleeptime); 4178 time_update (EV_A_ waittime + sleeptime);
3707 } 4179 }
3708 4180
3709 /* queue pending timers and reschedule them */ 4181 /* queue pending timers and reschedule them */
… …
3717 idle_reify (EV_A); 4189 idle_reify (EV_A);
3718#endif 4190#endif
3719 4191
3720#if EV_CHECK_ENABLE 4192#if EV_CHECK_ENABLE
3721 /* queue check watchers, to be executed first */ 4193 /* queue check watchers, to be executed first */
3722 if (expect_false (checkcnt)) 4194 if (ecb_expect_false (checkcnt))
3723 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4195 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3724#endif 4196#endif
3725 4197
3726 EV_INVOKE_PENDING; 4198 EV_INVOKE_PENDING;
3727 } 4199 }
3728 while (expect_true ( 4200 while (ecb_expect_true (
3729 activecnt 4201 activecnt
3730 && !loop_done 4202 && !loop_done
3731 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4203 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3732 )); 4204 ));
3733 4205
… …
3760} 4232}
3761 4233
3762void 4234void
3763ev_now_update (EV_P) EV_NOEXCEPT 4235ev_now_update (EV_P) EV_NOEXCEPT
3764{ 4236{
3765 time_update (EV_A_ 1e100); 4237 time_update (EV_A_ EV_TSTAMP_HUGE);
3766} 4238}
3767 4239
3768void 4240void
3769ev_suspend (EV_P) EV_NOEXCEPT 4241ev_suspend (EV_P) EV_NOEXCEPT
3770{ 4242{
… …
3797inline_size void 4269inline_size void
3798wlist_del (WL *head, WL elem) 4270wlist_del (WL *head, WL elem)
3799{ 4271{
3800 while (*head) 4272 while (*head)
3801 { 4273 {
3802 if (expect_true (*head == elem)) 4274 if (ecb_expect_true (*head == elem))
3803 { 4275 {
3804 *head = elem->next; 4276 *head = elem->next;
3805 break; 4277 break;
3806 } 4278 }
3807 4279
… …
3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 4296ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3825{ 4297{
3826 W w_ = (W)w; 4298 W w_ = (W)w;
3827 int pending = w_->pending; 4299 int pending = w_->pending;
3828 4300
3829 if (expect_true (pending)) 4301 if (ecb_expect_true (pending))
3830 { 4302 {
3831 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4303 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3832 p->w = (W)&pending_w; 4304 p->w = (W)&pending_w;
3833 w_->pending = 0; 4305 w_->pending = 0;
3834 return p->events; 4306 return p->events;
… …
3861 w->active = 0; 4333 w->active = 0;
3862} 4334}
3863 4335
3864/*****************************************************************************/ 4336/*****************************************************************************/
3865 4337
3866noinline 4338ecb_noinline
3867void 4339void
3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4340ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3869{ 4341{
3870 int fd = w->fd; 4342 int fd = w->fd;
3871 4343
3872 if (expect_false (ev_is_active (w))) 4344 if (ecb_expect_false (ev_is_active (w)))
3873 return; 4345 return;
3874 4346
3875 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4347 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3876 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4348 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3877 4349
4350#if EV_VERIFY >= 2
4351 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4352#endif
3878 EV_FREQUENT_CHECK; 4353 EV_FREQUENT_CHECK;
3879 4354
3880 ev_start (EV_A_ (W)w, 1); 4355 ev_start (EV_A_ (W)w, 1);
3881 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4356 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3882 wlist_add (&anfds[fd].head, (WL)w); 4357 wlist_add (&anfds[fd].head, (WL)w);
3883 4358
3884 /* common bug, apparently */ 4359 /* common bug, apparently */
3885 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4360 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3886 4361
… …
3888 w->events &= ~EV__IOFDSET; 4363 w->events &= ~EV__IOFDSET;
3889 4364
3890 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3891} 4366}
3892 4367
3893noinline 4368ecb_noinline
3894void 4369void
3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4370ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3896{ 4371{
3897 clear_pending (EV_A_ (W)w); 4372 clear_pending (EV_A_ (W)w);
3898 if (expect_false (!ev_is_active (w))) 4373 if (ecb_expect_false (!ev_is_active (w)))
3899 return; 4374 return;
3900 4375
3901 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4376 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3902 4377
4378#if EV_VERIFY >= 2
4379 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4380#endif
3903 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3904 4382
3905 wlist_del (&anfds[w->fd].head, (WL)w); 4383 wlist_del (&anfds[w->fd].head, (WL)w);
3906 ev_stop (EV_A_ (W)w); 4384 ev_stop (EV_A_ (W)w);
3907 4385
3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4386 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3909 4387
3910 EV_FREQUENT_CHECK; 4388 EV_FREQUENT_CHECK;
3911} 4389}
3912 4390
3913noinline 4391ecb_noinline
3914void 4392void
3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4393ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3916{ 4394{
3917 if (expect_false (ev_is_active (w))) 4395 if (ecb_expect_false (ev_is_active (w)))
3918 return; 4396 return;
3919 4397
3920 ev_at (w) += mn_now; 4398 ev_at (w) += mn_now;
3921 4399
3922 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4400 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3923 4401
3924 EV_FREQUENT_CHECK; 4402 EV_FREQUENT_CHECK;
3925 4403
3926 ++timercnt; 4404 ++timercnt;
3927 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4405 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3928 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4406 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3929 ANHE_w (timers [ev_active (w)]) = (WT)w; 4407 ANHE_w (timers [ev_active (w)]) = (WT)w;
3930 ANHE_at_cache (timers [ev_active (w)]); 4408 ANHE_at_cache (timers [ev_active (w)]);
3931 upheap (timers, ev_active (w)); 4409 upheap (timers, ev_active (w));
3932 4410
3933 EV_FREQUENT_CHECK; 4411 EV_FREQUENT_CHECK;
3934 4412
3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4413 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3936} 4414}
3937 4415
3938noinline 4416ecb_noinline
3939void 4417void
3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4418ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3941{ 4419{
3942 clear_pending (EV_A_ (W)w); 4420 clear_pending (EV_A_ (W)w);
3943 if (expect_false (!ev_is_active (w))) 4421 if (ecb_expect_false (!ev_is_active (w)))
3944 return; 4422 return;
3945 4423
3946 EV_FREQUENT_CHECK; 4424 EV_FREQUENT_CHECK;
3947 4425
3948 { 4426 {
… …
3950 4428
3951 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4429 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3952 4430
3953 --timercnt; 4431 --timercnt;
3954 4432
3955 if (expect_true (active < timercnt + HEAP0)) 4433 if (ecb_expect_true (active < timercnt + HEAP0))
3956 { 4434 {
3957 timers [active] = timers [timercnt + HEAP0]; 4435 timers [active] = timers [timercnt + HEAP0];
3958 adjustheap (timers, timercnt, active); 4436 adjustheap (timers, timercnt, active);
3959 } 4437 }
3960 } 4438 }
… …
3964 ev_stop (EV_A_ (W)w); 4442 ev_stop (EV_A_ (W)w);
3965 4443
3966 EV_FREQUENT_CHECK; 4444 EV_FREQUENT_CHECK;
3967} 4445}
3968 4446
3969noinline 4447ecb_noinline
3970void 4448void
3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4449ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3972{ 4450{
3973 EV_FREQUENT_CHECK; 4451 EV_FREQUENT_CHECK;
3974 4452
… …
3995} 4473}
3996 4474
3997ev_tstamp 4475ev_tstamp
3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4476ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3999{ 4477{
4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4478 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
4001} 4479}
4002 4480
4003#if EV_PERIODIC_ENABLE 4481#if EV_PERIODIC_ENABLE
4004noinline 4482ecb_noinline
4005void 4483void
4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4484ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4007{ 4485{
4008 if (expect_false (ev_is_active (w))) 4486 if (ecb_expect_false (ev_is_active (w)))
4009 return; 4487 return;
4488
4489#if EV_USE_TIMERFD
4490 if (timerfd == -2)
4491 evtimerfd_init (EV_A);
4492#endif
4010 4493
4011 if (w->reschedule_cb) 4494 if (w->reschedule_cb)
4012 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4495 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4013 else if (w->interval) 4496 else if (w->interval)
4014 { 4497 {
… …
4020 4503
4021 EV_FREQUENT_CHECK; 4504 EV_FREQUENT_CHECK;
4022 4505
4023 ++periodiccnt; 4506 ++periodiccnt;
4024 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4507 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4025 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4508 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4026 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4509 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4027 ANHE_at_cache (periodics [ev_active (w)]); 4510 ANHE_at_cache (periodics [ev_active (w)]);
4028 upheap (periodics, ev_active (w)); 4511 upheap (periodics, ev_active (w));
4029 4512
4030 EV_FREQUENT_CHECK; 4513 EV_FREQUENT_CHECK;
4031 4514
4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4515 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4033} 4516}
4034 4517
4035noinline 4518ecb_noinline
4036void 4519void
4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4520ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4038{ 4521{
4039 clear_pending (EV_A_ (W)w); 4522 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4523 if (ecb_expect_false (!ev_is_active (w)))
4041 return; 4524 return;
4042 4525
4043 EV_FREQUENT_CHECK; 4526 EV_FREQUENT_CHECK;
4044 4527
4045 { 4528 {
… …
4047 4530
4048 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4531 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4049 4532
4050 --periodiccnt; 4533 --periodiccnt;
4051 4534
4052 if (expect_true (active < periodiccnt + HEAP0)) 4535 if (ecb_expect_true (active < periodiccnt + HEAP0))
4053 { 4536 {
4054 periodics [active] = periodics [periodiccnt + HEAP0]; 4537 periodics [active] = periodics [periodiccnt + HEAP0];
4055 adjustheap (periodics, periodiccnt, active); 4538 adjustheap (periodics, periodiccnt, active);
4056 } 4539 }
4057 } 4540 }
… …
4059 ev_stop (EV_A_ (W)w); 4542 ev_stop (EV_A_ (W)w);
4060 4543
4061 EV_FREQUENT_CHECK; 4544 EV_FREQUENT_CHECK;
4062} 4545}
4063 4546
4064noinline 4547ecb_noinline
4065void 4548void
4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4549ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4067{ 4550{
4068 /* TODO: use adjustheap and recalculation */ 4551 /* TODO: use adjustheap and recalculation */
4069 ev_periodic_stop (EV_A_ w); 4552 ev_periodic_stop (EV_A_ w);
… …
4075# define SA_RESTART 0 4558# define SA_RESTART 0
4076#endif 4559#endif
4077 4560
4078#if EV_SIGNAL_ENABLE 4561#if EV_SIGNAL_ENABLE
4079 4562
4080noinline 4563ecb_noinline
4081void 4564void
4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4565ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4083{ 4566{
4084 if (expect_false (ev_is_active (w))) 4567 if (ecb_expect_false (ev_is_active (w)))
4085 return; 4568 return;
4086 4569
4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4570 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4088 4571
4089#if EV_MULTIPLICITY 4572#if EV_MULTIPLICITY
… …
4158 } 4641 }
4159 4642
4160 EV_FREQUENT_CHECK; 4643 EV_FREQUENT_CHECK;
4161} 4644}
4162 4645
4163noinline 4646ecb_noinline
4164void 4647void
4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4648ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4166{ 4649{
4167 clear_pending (EV_A_ (W)w); 4650 clear_pending (EV_A_ (W)w);
4168 if (expect_false (!ev_is_active (w))) 4651 if (ecb_expect_false (!ev_is_active (w)))
4169 return; 4652 return;
4170 4653
4171 EV_FREQUENT_CHECK; 4654 EV_FREQUENT_CHECK;
4172 4655
4173 wlist_del (&signals [w->signum - 1].head, (WL)w); 4656 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4689ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4207{ 4690{
4208#if EV_MULTIPLICITY 4691#if EV_MULTIPLICITY
4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4692 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4210#endif 4693#endif
4211 if (expect_false (ev_is_active (w))) 4694 if (ecb_expect_false (ev_is_active (w)))
4212 return; 4695 return;
4213 4696
4214 EV_FREQUENT_CHECK; 4697 EV_FREQUENT_CHECK;
4215 4698
4216 ev_start (EV_A_ (W)w, 1); 4699 ev_start (EV_A_ (W)w, 1);
… …
4221 4704
4222void 4705void
4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4706ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4224{ 4707{
4225 clear_pending (EV_A_ (W)w); 4708 clear_pending (EV_A_ (W)w);
4226 if (expect_false (!ev_is_active (w))) 4709 if (ecb_expect_false (!ev_is_active (w)))
4227 return; 4710 return;
4228 4711
4229 EV_FREQUENT_CHECK; 4712 EV_FREQUENT_CHECK;
4230 4713
4231 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4714 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4245 4728
4246#define DEF_STAT_INTERVAL 5.0074891 4729#define DEF_STAT_INTERVAL 5.0074891
4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4730#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4248#define MIN_STAT_INTERVAL 0.1074891 4731#define MIN_STAT_INTERVAL 0.1074891
4249 4732
4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4733ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4251 4734
4252#if EV_USE_INOTIFY 4735#if EV_USE_INOTIFY
4253 4736
4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4737/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4255# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4738# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4256 4739
4257noinline 4740ecb_noinline
4258static void 4741static void
4259infy_add (EV_P_ ev_stat *w) 4742infy_add (EV_P_ ev_stat *w)
4260{ 4743{
4261 w->wd = inotify_add_watch (fs_fd, w->path, 4744 w->wd = inotify_add_watch (fs_fd, w->path,
4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4745 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4327 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4810 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4328 ev_timer_again (EV_A_ &w->timer); 4811 ev_timer_again (EV_A_ &w->timer);
4329 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4812 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4330} 4813}
4331 4814
4332noinline 4815ecb_noinline
4333static void 4816static void
4334infy_del (EV_P_ ev_stat *w) 4817infy_del (EV_P_ ev_stat *w)
4335{ 4818{
4336 int slot; 4819 int slot;
4337 int wd = w->wd; 4820 int wd = w->wd;
… …
4345 4828
4346 /* remove this watcher, if others are watching it, they will rearm */ 4829 /* remove this watcher, if others are watching it, they will rearm */
4347 inotify_rm_watch (fs_fd, wd); 4830 inotify_rm_watch (fs_fd, wd);
4348} 4831}
4349 4832
4350noinline 4833ecb_noinline
4351static void 4834static void
4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4835infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4353{ 4836{
4354 if (slot < 0) 4837 if (slot < 0)
4355 /* overflow, need to check for all hash slots */ 4838 /* overflow, need to check for all hash slots */
… …
4501 w->attr.st_nlink = 0; 4984 w->attr.st_nlink = 0;
4502 else if (!w->attr.st_nlink) 4985 else if (!w->attr.st_nlink)
4503 w->attr.st_nlink = 1; 4986 w->attr.st_nlink = 1;
4504} 4987}
4505 4988
4506noinline 4989ecb_noinline
4507static void 4990static void
4508stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4991stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4509{ 4992{
4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4993 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4511 4994
… …
4545} 5028}
4546 5029
4547void 5030void
4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 5031ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4549{ 5032{
4550 if (expect_false (ev_is_active (w))) 5033 if (ecb_expect_false (ev_is_active (w)))
4551 return; 5034 return;
4552 5035
4553 ev_stat_stat (EV_A_ w); 5036 ev_stat_stat (EV_A_ w);
4554 5037
4555 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5038 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4577 5060
4578void 5061void
4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 5062ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4580{ 5063{
4581 clear_pending (EV_A_ (W)w); 5064 clear_pending (EV_A_ (W)w);
4582 if (expect_false (!ev_is_active (w))) 5065 if (ecb_expect_false (!ev_is_active (w)))
4583 return; 5066 return;
4584 5067
4585 EV_FREQUENT_CHECK; 5068 EV_FREQUENT_CHECK;
4586 5069
4587#if EV_USE_INOTIFY 5070#if EV_USE_INOTIFY
… …
4602 5085
4603#if EV_IDLE_ENABLE 5086#if EV_IDLE_ENABLE
4604void 5087void
4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 5088ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4606{ 5089{
4607 if (expect_false (ev_is_active (w))) 5090 if (ecb_expect_false (ev_is_active (w)))
4608 return; 5091 return;
4609 5092
4610 pri_adjust (EV_A_ (W)w); 5093 pri_adjust (EV_A_ (W)w);
4611 5094
4612 EV_FREQUENT_CHECK; 5095 EV_FREQUENT_CHECK;
… …
4615 int active = ++idlecnt [ABSPRI (w)]; 5098 int active = ++idlecnt [ABSPRI (w)];
4616 5099
4617 ++idleall; 5100 ++idleall;
4618 ev_start (EV_A_ (W)w, active); 5101 ev_start (EV_A_ (W)w, active);
4619 5102
4620 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5103 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4621 idles [ABSPRI (w)][active - 1] = w; 5104 idles [ABSPRI (w)][active - 1] = w;
4622 } 5105 }
4623 5106
4624 EV_FREQUENT_CHECK; 5107 EV_FREQUENT_CHECK;
4625} 5108}
4626 5109
4627void 5110void
4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 5111ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4629{ 5112{
4630 clear_pending (EV_A_ (W)w); 5113 clear_pending (EV_A_ (W)w);
4631 if (expect_false (!ev_is_active (w))) 5114 if (ecb_expect_false (!ev_is_active (w)))
4632 return; 5115 return;
4633 5116
4634 EV_FREQUENT_CHECK; 5117 EV_FREQUENT_CHECK;
4635 5118
4636 { 5119 {
… …
4649 5132
4650#if EV_PREPARE_ENABLE 5133#if EV_PREPARE_ENABLE
4651void 5134void
4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 5135ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4653{ 5136{
4654 if (expect_false (ev_is_active (w))) 5137 if (ecb_expect_false (ev_is_active (w)))
4655 return; 5138 return;
4656 5139
4657 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4658 5141
4659 ev_start (EV_A_ (W)w, ++preparecnt); 5142 ev_start (EV_A_ (W)w, ++preparecnt);
4660 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5143 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4661 prepares [preparecnt - 1] = w; 5144 prepares [preparecnt - 1] = w;
4662 5145
4663 EV_FREQUENT_CHECK; 5146 EV_FREQUENT_CHECK;
4664} 5147}
4665 5148
4666void 5149void
4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 5150ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4668{ 5151{
4669 clear_pending (EV_A_ (W)w); 5152 clear_pending (EV_A_ (W)w);
4670 if (expect_false (!ev_is_active (w))) 5153 if (ecb_expect_false (!ev_is_active (w)))
4671 return; 5154 return;
4672 5155
4673 EV_FREQUENT_CHECK; 5156 EV_FREQUENT_CHECK;
4674 5157
4675 { 5158 {
… …
4687 5170
4688#if EV_CHECK_ENABLE 5171#if EV_CHECK_ENABLE
4689void 5172void
4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 5173ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4691{ 5174{
4692 if (expect_false (ev_is_active (w))) 5175 if (ecb_expect_false (ev_is_active (w)))
4693 return; 5176 return;
4694 5177
4695 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4696 5179
4697 ev_start (EV_A_ (W)w, ++checkcnt); 5180 ev_start (EV_A_ (W)w, ++checkcnt);
4698 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5181 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4699 checks [checkcnt - 1] = w; 5182 checks [checkcnt - 1] = w;
4700 5183
4701 EV_FREQUENT_CHECK; 5184 EV_FREQUENT_CHECK;
4702} 5185}
4703 5186
4704void 5187void
4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 5188ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4706{ 5189{
4707 clear_pending (EV_A_ (W)w); 5190 clear_pending (EV_A_ (W)w);
4708 if (expect_false (!ev_is_active (w))) 5191 if (ecb_expect_false (!ev_is_active (w)))
4709 return; 5192 return;
4710 5193
4711 EV_FREQUENT_CHECK; 5194 EV_FREQUENT_CHECK;
4712 5195
4713 { 5196 {
… …
4722 EV_FREQUENT_CHECK; 5205 EV_FREQUENT_CHECK;
4723} 5206}
4724#endif 5207#endif
4725 5208
4726#if EV_EMBED_ENABLE 5209#if EV_EMBED_ENABLE
4727noinline 5210ecb_noinline
4728void 5211void
4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 5212ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4730{ 5213{
4731 ev_run (w->other, EVRUN_NOWAIT); 5214 ev_run (w->other, EVRUN_NOWAIT);
4732} 5215}
… …
4756 ev_run (EV_A_ EVRUN_NOWAIT); 5239 ev_run (EV_A_ EVRUN_NOWAIT);
4757 } 5240 }
4758 } 5241 }
4759} 5242}
4760 5243
5244#if EV_FORK_ENABLE
4761static void 5245static void
4762embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5246embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4763{ 5247{
4764 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5248 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4765 5249
… …
4772 ev_run (EV_A_ EVRUN_NOWAIT); 5256 ev_run (EV_A_ EVRUN_NOWAIT);
4773 } 5257 }
4774 5258
4775 ev_embed_start (EV_A_ w); 5259 ev_embed_start (EV_A_ w);
4776} 5260}
5261#endif
4777 5262
4778#if 0 5263#if 0
4779static void 5264static void
4780embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5265embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4781{ 5266{
… …
4784#endif 5269#endif
4785 5270
4786void 5271void
4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 5272ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4788{ 5273{
4789 if (expect_false (ev_is_active (w))) 5274 if (ecb_expect_false (ev_is_active (w)))
4790 return; 5275 return;
4791 5276
4792 { 5277 {
4793 EV_P = w->other; 5278 EV_P = w->other;
4794 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5279 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4802 5287
4803 ev_prepare_init (&w->prepare, embed_prepare_cb); 5288 ev_prepare_init (&w->prepare, embed_prepare_cb);
4804 ev_set_priority (&w->prepare, EV_MINPRI); 5289 ev_set_priority (&w->prepare, EV_MINPRI);
4805 ev_prepare_start (EV_A_ &w->prepare); 5290 ev_prepare_start (EV_A_ &w->prepare);
4806 5291
5292#if EV_FORK_ENABLE
4807 ev_fork_init (&w->fork, embed_fork_cb); 5293 ev_fork_init (&w->fork, embed_fork_cb);
4808 ev_fork_start (EV_A_ &w->fork); 5294 ev_fork_start (EV_A_ &w->fork);
5295#endif
4809 5296
4810 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5297 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4811 5298
4812 ev_start (EV_A_ (W)w, 1); 5299 ev_start (EV_A_ (W)w, 1);
4813 5300
… …
4816 5303
4817void 5304void
4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 5305ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4819{ 5306{
4820 clear_pending (EV_A_ (W)w); 5307 clear_pending (EV_A_ (W)w);
4821 if (expect_false (!ev_is_active (w))) 5308 if (ecb_expect_false (!ev_is_active (w)))
4822 return; 5309 return;
4823 5310
4824 EV_FREQUENT_CHECK; 5311 EV_FREQUENT_CHECK;
4825 5312
4826 ev_io_stop (EV_A_ &w->io); 5313 ev_io_stop (EV_A_ &w->io);
4827 ev_prepare_stop (EV_A_ &w->prepare); 5314 ev_prepare_stop (EV_A_ &w->prepare);
5315#if EV_FORK_ENABLE
4828 ev_fork_stop (EV_A_ &w->fork); 5316 ev_fork_stop (EV_A_ &w->fork);
5317#endif
4829 5318
4830 ev_stop (EV_A_ (W)w); 5319 ev_stop (EV_A_ (W)w);
4831 5320
4832 EV_FREQUENT_CHECK; 5321 EV_FREQUENT_CHECK;
4833} 5322}
… …
4835 5324
4836#if EV_FORK_ENABLE 5325#if EV_FORK_ENABLE
4837void 5326void
4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5327ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4839{ 5328{
4840 if (expect_false (ev_is_active (w))) 5329 if (ecb_expect_false (ev_is_active (w)))
4841 return; 5330 return;
4842 5331
4843 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4844 5333
4845 ev_start (EV_A_ (W)w, ++forkcnt); 5334 ev_start (EV_A_ (W)w, ++forkcnt);
4846 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5335 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4847 forks [forkcnt - 1] = w; 5336 forks [forkcnt - 1] = w;
4848 5337
4849 EV_FREQUENT_CHECK; 5338 EV_FREQUENT_CHECK;
4850} 5339}
4851 5340
4852void 5341void
4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5342ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4854{ 5343{
4855 clear_pending (EV_A_ (W)w); 5344 clear_pending (EV_A_ (W)w);
4856 if (expect_false (!ev_is_active (w))) 5345 if (ecb_expect_false (!ev_is_active (w)))
4857 return; 5346 return;
4858 5347
4859 EV_FREQUENT_CHECK; 5348 EV_FREQUENT_CHECK;
4860 5349
4861 { 5350 {
… …
4873 5362
4874#if EV_CLEANUP_ENABLE 5363#if EV_CLEANUP_ENABLE
4875void 5364void
4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5365ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4877{ 5366{
4878 if (expect_false (ev_is_active (w))) 5367 if (ecb_expect_false (ev_is_active (w)))
4879 return; 5368 return;
4880 5369
4881 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4882 5371
4883 ev_start (EV_A_ (W)w, ++cleanupcnt); 5372 ev_start (EV_A_ (W)w, ++cleanupcnt);
4884 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5373 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4885 cleanups [cleanupcnt - 1] = w; 5374 cleanups [cleanupcnt - 1] = w;
4886 5375
4887 /* cleanup watchers should never keep a refcount on the loop */ 5376 /* cleanup watchers should never keep a refcount on the loop */
4888 ev_unref (EV_A); 5377 ev_unref (EV_A);
4889 EV_FREQUENT_CHECK; 5378 EV_FREQUENT_CHECK;
… …
4891 5380
4892void 5381void
4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5382ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4894{ 5383{
4895 clear_pending (EV_A_ (W)w); 5384 clear_pending (EV_A_ (W)w);
4896 if (expect_false (!ev_is_active (w))) 5385 if (ecb_expect_false (!ev_is_active (w)))
4897 return; 5386 return;
4898 5387
4899 EV_FREQUENT_CHECK; 5388 EV_FREQUENT_CHECK;
4900 ev_ref (EV_A); 5389 ev_ref (EV_A);
4901 5390
… …
4914 5403
4915#if EV_ASYNC_ENABLE 5404#if EV_ASYNC_ENABLE
4916void 5405void
4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5406ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4918{ 5407{
4919 if (expect_false (ev_is_active (w))) 5408 if (ecb_expect_false (ev_is_active (w)))
4920 return; 5409 return;
4921 5410
4922 w->sent = 0; 5411 w->sent = 0;
4923 5412
4924 evpipe_init (EV_A); 5413 evpipe_init (EV_A);
4925 5414
4926 EV_FREQUENT_CHECK; 5415 EV_FREQUENT_CHECK;
4927 5416
4928 ev_start (EV_A_ (W)w, ++asynccnt); 5417 ev_start (EV_A_ (W)w, ++asynccnt);
4929 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5418 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4930 asyncs [asynccnt - 1] = w; 5419 asyncs [asynccnt - 1] = w;
4931 5420
4932 EV_FREQUENT_CHECK; 5421 EV_FREQUENT_CHECK;
4933} 5422}
4934 5423
4935void 5424void
4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5425ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4937{ 5426{
4938 clear_pending (EV_A_ (W)w); 5427 clear_pending (EV_A_ (W)w);
4939 if (expect_false (!ev_is_active (w))) 5428 if (ecb_expect_false (!ev_is_active (w)))
4940 return; 5429 return;
4941 5430
4942 EV_FREQUENT_CHECK; 5431 EV_FREQUENT_CHECK;
4943 5432
4944 { 5433 {

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