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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 1.526 by root, Wed Jan 22 17:11:33 2020 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) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
190# endif
191
165#endif 192#endif
166 193
167/* OS X, in its infinite idiocy, actually HARDCODES 194/* OS X, in its infinite idiocy, actually HARDCODES
168 * a limit of 1024 into their select. Where people have brains, 195 * a limit of 1024 into their select. Where people have brains,
169 * OS X engineers apparently have a vacuum. Or maybe they were 196 * OS X engineers apparently have a vacuum. Or maybe they were
… …
315 342
316#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
317# define EV_USE_PORT 0 344# define EV_USE_PORT 0
318#endif 345#endif
319 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
320#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
321# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
322# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
323# else 366# else
324# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
344#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
345# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
346# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
347# else 390# else
348# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
392# endif
393#endif
394
395#ifndef EV_USE_TIMERFD
396# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8))
397# define EV_USE_TIMERFD EV_FEATURE_OS
398# else
399# define EV_USE_TIMERFD 0
349# endif 400# endif
350#endif 401#endif
351 402
352#if 0 /* debugging */ 403#if 0 /* debugging */
353# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
389# include <sys/syscall.h> 440# include <sys/syscall.h>
390# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
391# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
392# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
393# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
394# else 446# else
395# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
396# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
397# endif 449# endif
398#endif 450#endif
… …
412#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
413# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
414# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
415#endif 467#endif
416 468
469#if __linux && EV_USE_IOURING
470# include <linux/version.h>
471# if LINUX_VERSION_CODE < KERNEL_VERSION(4,14,0)
472# undef EV_USE_IOURING
473# define EV_USE_IOURING 0
474# endif
475#endif
476
417#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
418/* hp-ux has it in sys/time.h, which we unconditionally include above */ 478/* hp-ux has it in sys/time.h, which we unconditionally include above */
419# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
420# include <sys/select.h> 480# include <sys/select.h>
481# endif
482#endif
483
484#if EV_USE_LINUXAIO
485# include <sys/syscall.h>
486# if SYS_io_getevents && EV_USE_EPOLL /* linuxaio backend requires epoll backend */
487# define EV_NEED_SYSCALL 1
488# else
489# undef EV_USE_LINUXAIO
490# define EV_USE_LINUXAIO 0
491# endif
492#endif
493
494#if EV_USE_IOURING
495# include <sys/syscall.h>
496# if !SYS_io_uring_setup && __linux && !__alpha
497# define SYS_io_uring_setup 425
498# define SYS_io_uring_enter 426
499# define SYS_io_uring_wregister 427
500# endif
501# if SYS_io_uring_setup && EV_USE_EPOLL /* iouring backend requires epoll backend */
502# define EV_NEED_SYSCALL 1
503# else
504# undef EV_USE_IOURING
505# define EV_USE_IOURING 0
421# endif 506# endif
422#endif 507#endif
423 508
424#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
425# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
430# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
431# endif 516# endif
432#endif 517#endif
433 518
434#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
435/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 520/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
436# include <stdint.h> 521# include <stdint.h>
437# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
438# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
439# endif 524# endif
440# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
446# endif 531# endif
447EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
448#endif 533#endif
449 534
450#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
451/* our minimum requirement is glibc 2.7 which has the stub, but not the header */ 536/* our minimum requirement is glibc 2.7 which has the stub, but not the full header */
452# include <stdint.h> 537# include <stdint.h>
453# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
454# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
455# endif 540# endif
456# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
458# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
459# else 544# else
460# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
461# endif 546# endif
462# endif 547# endif
463EV_CPP (extern "C") int signalfd (int fd, const sigset_t *mask, int flags); 548EV_CPP (extern "C") int (signalfd) (int fd, const sigset_t *mask, int flags);
464 549
465struct signalfd_siginfo 550struct signalfd_siginfo
466{ 551{
467 uint32_t ssi_signo; 552 uint32_t ssi_signo;
468 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
469}; 554};
470#endif 555#endif
471 556
472/**/ 557/* for timerfd, libev core requires TFD_TIMER_CANCEL_ON_SET &c */
558#if EV_USE_TIMERFD
559# include <sys/timerfd.h>
560/* timerfd is only used for periodics */
561# if !(defined (TFD_TIMER_CANCEL_ON_SET) && defined (TFD_CLOEXEC) && defined (TFD_NONBLOCK)) || !EV_PERIODIC_ENABLE
562# undef EV_USE_TIMERFD
563# define EV_USE_TIMERFD 0
564# endif
565#endif
566
567/*****************************************************************************/
473 568
474#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
475# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
476#else 571#else
477# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
482 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
483 */ 578 */
484#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
485/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
486 581
487#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */ 582#define MIN_TIMEJUMP 1. /* minimum timejump that gets detected (if monotonic clock available) */
488#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */ 583#define MAX_BLOCKTIME 59.743 /* never wait longer than this time (to detect time jumps) */
584#define MAX_BLOCKTIME2 1500001.07 /* same, but when timerfd is used to detect jumps, also safe delay to not overflow */
489 585
586/* find a portable timestamp that is "always" in the future but fits into time_t.
587 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
588 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
589#define EV_TSTAMP_HUGE \
590 (sizeof (time_t) >= 8 ? 10000000000000. \
591 : 0 < (time_t)4294967295 ? 4294967295. \
592 : 2147483647.) \
593
594#ifndef EV_TS_CONST
595# define EV_TS_CONST(nv) nv
596# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
597# define EV_TS_FROM_USEC(us) us * 1e-6
490#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0) 598# define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
491#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0) 599# define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
600# define EV_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
601# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
602#endif
492 603
493/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 604/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
494/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
495/* 606/*
496 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
497 * 608 *
498 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> 609 * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de>
499 * Copyright (©) 2011 Emanuele Giaquinta 610 * Copyright (©) 2011 Emanuele Giaquinta
500 * All rights reserved. 611 * All rights reserved.
501 * 612 *
502 * Redistribution and use in source and binary forms, with or without modifica- 613 * Redistribution and use in source and binary forms, with or without modifica-
503 * tion, are permitted provided that the following conditions are met: 614 * tion, are permitted provided that the following conditions are met:
… …
534 645
535#ifndef ECB_H 646#ifndef ECB_H
536#define ECB_H 647#define ECB_H
537 648
538/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
539#define ECB_VERSION 0x00010005 650#define ECB_VERSION 0x00010008
651
652#include <string.h> /* for memcpy */
540 653
541#ifdef _WIN32 654#ifdef _WIN32
542 typedef signed char int8_t; 655 typedef signed char int8_t;
543 typedef unsigned char uint8_t; 656 typedef unsigned char uint8_t;
657 typedef signed char int_fast8_t;
658 typedef unsigned char uint_fast8_t;
544 typedef signed short int16_t; 659 typedef signed short int16_t;
545 typedef unsigned short uint16_t; 660 typedef unsigned short uint16_t;
661 typedef signed int int_fast16_t;
662 typedef unsigned int uint_fast16_t;
546 typedef signed int int32_t; 663 typedef signed int int32_t;
547 typedef unsigned int uint32_t; 664 typedef unsigned int uint32_t;
665 typedef signed int int_fast32_t;
666 typedef unsigned int uint_fast32_t;
548 #if __GNUC__ 667 #if __GNUC__
549 typedef signed long long int64_t; 668 typedef signed long long int64_t;
550 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
551 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
552 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
553 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
554 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
555 #ifdef _WIN64 676 #ifdef _WIN64
556 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
557 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
558 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
559 #else 680 #else
… …
571#endif 692#endif
572 693
573#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
574#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
575 696
697#ifndef ECB_OPTIMIZE_SIZE
698 #if __OPTIMIZE_SIZE__
699 #define ECB_OPTIMIZE_SIZE 1
700 #else
701 #define ECB_OPTIMIZE_SIZE 0
702 #endif
703#endif
704
576/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
577#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
578 #if _ILP32 707 #if _ILP32
579 #define ECB_AMD64_X32 1 708 #define ECB_AMD64_X32 1
580 #else 709 #else
… …
658 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 787 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
659#endif 788#endif
660 789
661#ifndef ECB_MEMORY_FENCE 790#ifndef ECB_MEMORY_FENCE
662 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 791 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
792 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
663 #if __i386 || __i386__ 793 #if __i386 || __i386__
664 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
665 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 795 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
666 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") 796 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
667 #elif ECB_GCC_AMD64 797 #elif ECB_GCC_AMD64
… …
717 #if ECB_GCC_VERSION(4,7) 847 #if ECB_GCC_VERSION(4,7)
718 /* see comment below (stdatomic.h) about the C11 memory model. */ 848 /* see comment below (stdatomic.h) about the C11 memory model. */
719 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 849 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
720 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 850 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
721 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 851 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
852 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
722 853
723 #elif ECB_CLANG_EXTENSION(c_atomic) 854 #elif ECB_CLANG_EXTENSION(c_atomic)
724 /* see comment below (stdatomic.h) about the C11 memory model. */ 855 /* see comment below (stdatomic.h) about the C11 memory model. */
725 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 856 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
726 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 857 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
727 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 858 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
859 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
728 860
729 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 861 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
730 #define ECB_MEMORY_FENCE __sync_synchronize () 862 #define ECB_MEMORY_FENCE __sync_synchronize ()
731 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 863 #elif _MSC_VER >= 1500 /* VC++ 2008 */
732 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 864 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
742 #elif defined _WIN32 874 #elif defined _WIN32
743 #include <WinNT.h> 875 #include <WinNT.h>
744 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 876 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
745 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 877 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
746 #include <mbarrier.h> 878 #include <mbarrier.h>
747 #define ECB_MEMORY_FENCE __machine_rw_barrier () 879 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
748 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 880 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
749 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 881 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
882 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
750 #elif __xlC__ 883 #elif __xlC__
751 #define ECB_MEMORY_FENCE __sync () 884 #define ECB_MEMORY_FENCE __sync ()
752 #endif 885 #endif
753#endif 886#endif
754 887
755#ifndef ECB_MEMORY_FENCE 888#ifndef ECB_MEMORY_FENCE
756 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 889 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
757 /* we assume that these memory fences work on all variables/all memory accesses, */ 890 /* we assume that these memory fences work on all variables/all memory accesses, */
758 /* not just C11 atomics and atomic accesses */ 891 /* not just C11 atomics and atomic accesses */
759 #include <stdatomic.h> 892 #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) 893 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
894 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
895 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
769 #endif 896 #endif
770#endif 897#endif
771 898
772#ifndef ECB_MEMORY_FENCE 899#ifndef ECB_MEMORY_FENCE
773 #if !ECB_AVOID_PTHREADS 900 #if !ECB_AVOID_PTHREADS
… …
791 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 918 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
792#endif 919#endif
793 920
794#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 921#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
795 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 922 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
923#endif
924
925#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
926 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
796#endif 927#endif
797 928
798/*****************************************************************************/ 929/*****************************************************************************/
799 930
800#if ECB_CPP 931#if ECB_CPP
… …
1084ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); } 1215ecb_inline ecb_const uint32_t ecb_rotl32 (uint32_t x, unsigned int count) { return (x >> (32 - count)) | (x << count); }
1085ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1216ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1086ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1217ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1087ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1218ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1088 1219
1220#if ECB_CPP
1221
1222inline uint8_t ecb_ctz (uint8_t v) { return ecb_ctz32 (v); }
1223inline uint16_t ecb_ctz (uint16_t v) { return ecb_ctz32 (v); }
1224inline uint32_t ecb_ctz (uint32_t v) { return ecb_ctz32 (v); }
1225inline uint64_t ecb_ctz (uint64_t v) { return ecb_ctz64 (v); }
1226
1227inline bool ecb_is_pot (uint8_t v) { return ecb_is_pot32 (v); }
1228inline bool ecb_is_pot (uint16_t v) { return ecb_is_pot32 (v); }
1229inline bool ecb_is_pot (uint32_t v) { return ecb_is_pot32 (v); }
1230inline bool ecb_is_pot (uint64_t v) { return ecb_is_pot64 (v); }
1231
1232inline int ecb_ld (uint8_t v) { return ecb_ld32 (v); }
1233inline int ecb_ld (uint16_t v) { return ecb_ld32 (v); }
1234inline int ecb_ld (uint32_t v) { return ecb_ld32 (v); }
1235inline int ecb_ld (uint64_t v) { return ecb_ld64 (v); }
1236
1237inline int ecb_popcount (uint8_t v) { return ecb_popcount32 (v); }
1238inline int ecb_popcount (uint16_t v) { return ecb_popcount32 (v); }
1239inline int ecb_popcount (uint32_t v) { return ecb_popcount32 (v); }
1240inline int ecb_popcount (uint64_t v) { return ecb_popcount64 (v); }
1241
1242inline uint8_t ecb_bitrev (uint8_t v) { return ecb_bitrev8 (v); }
1243inline uint16_t ecb_bitrev (uint16_t v) { return ecb_bitrev16 (v); }
1244inline uint32_t ecb_bitrev (uint32_t v) { return ecb_bitrev32 (v); }
1245
1246inline uint8_t ecb_rotl (uint8_t v, unsigned int count) { return ecb_rotl8 (v, count); }
1247inline uint16_t ecb_rotl (uint16_t v, unsigned int count) { return ecb_rotl16 (v, count); }
1248inline uint32_t ecb_rotl (uint32_t v, unsigned int count) { return ecb_rotl32 (v, count); }
1249inline uint64_t ecb_rotl (uint64_t v, unsigned int count) { return ecb_rotl64 (v, count); }
1250
1251inline uint8_t ecb_rotr (uint8_t v, unsigned int count) { return ecb_rotr8 (v, count); }
1252inline uint16_t ecb_rotr (uint16_t v, unsigned int count) { return ecb_rotr16 (v, count); }
1253inline uint32_t ecb_rotr (uint32_t v, unsigned int count) { return ecb_rotr32 (v, count); }
1254inline uint64_t ecb_rotr (uint64_t v, unsigned int count) { return ecb_rotr64 (v, count); }
1255
1256#endif
1257
1089#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1258#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1090 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1091 #define ecb_bswap16(x) __builtin_bswap16 (x) 1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1092 #else 1261 #else
1093 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1164ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1165ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; } 1334ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1166ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1167ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; } 1336ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1168 1337
1338/*****************************************************************************/
1339/* unaligned load/store */
1340
1341ecb_inline uint_fast16_t ecb_be_u16_to_host (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1342ecb_inline uint_fast32_t ecb_be_u32_to_host (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1343ecb_inline uint_fast64_t ecb_be_u64_to_host (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1344
1345ecb_inline uint_fast16_t ecb_le_u16_to_host (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1346ecb_inline uint_fast32_t ecb_le_u32_to_host (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1347ecb_inline uint_fast64_t ecb_le_u64_to_host (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1348
1349ecb_inline uint_fast16_t ecb_peek_u16_u (const void *ptr) { uint16_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1350ecb_inline uint_fast32_t ecb_peek_u32_u (const void *ptr) { uint32_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1351ecb_inline uint_fast64_t ecb_peek_u64_u (const void *ptr) { uint64_t v; memcpy (&v, ptr, sizeof (v)); return v; }
1352
1353ecb_inline uint_fast16_t ecb_peek_be_u16_u (const void *ptr) { return ecb_be_u16_to_host (ecb_peek_u16_u (ptr)); }
1354ecb_inline uint_fast32_t ecb_peek_be_u32_u (const void *ptr) { return ecb_be_u32_to_host (ecb_peek_u32_u (ptr)); }
1355ecb_inline uint_fast64_t ecb_peek_be_u64_u (const void *ptr) { return ecb_be_u64_to_host (ecb_peek_u64_u (ptr)); }
1356
1357ecb_inline uint_fast16_t ecb_peek_le_u16_u (const void *ptr) { return ecb_le_u16_to_host (ecb_peek_u16_u (ptr)); }
1358ecb_inline uint_fast32_t ecb_peek_le_u32_u (const void *ptr) { return ecb_le_u32_to_host (ecb_peek_u32_u (ptr)); }
1359ecb_inline uint_fast64_t ecb_peek_le_u64_u (const void *ptr) { return ecb_le_u64_to_host (ecb_peek_u64_u (ptr)); }
1360
1361ecb_inline uint_fast16_t ecb_host_to_be_u16 (uint_fast16_t v) { return ecb_little_endian () ? ecb_bswap16 (v) : v; }
1362ecb_inline uint_fast32_t ecb_host_to_be_u32 (uint_fast32_t v) { return ecb_little_endian () ? ecb_bswap32 (v) : v; }
1363ecb_inline uint_fast64_t ecb_host_to_be_u64 (uint_fast64_t v) { return ecb_little_endian () ? ecb_bswap64 (v) : v; }
1364
1365ecb_inline uint_fast16_t ecb_host_to_le_u16 (uint_fast16_t v) { return ecb_big_endian () ? ecb_bswap16 (v) : v; }
1366ecb_inline uint_fast32_t ecb_host_to_le_u32 (uint_fast32_t v) { return ecb_big_endian () ? ecb_bswap32 (v) : v; }
1367ecb_inline uint_fast64_t ecb_host_to_le_u64 (uint_fast64_t v) { return ecb_big_endian () ? ecb_bswap64 (v) : v; }
1368
1369ecb_inline void ecb_poke_u16_u (void *ptr, uint16_t v) { memcpy (ptr, &v, sizeof (v)); }
1370ecb_inline void ecb_poke_u32_u (void *ptr, uint32_t v) { memcpy (ptr, &v, sizeof (v)); }
1371ecb_inline void ecb_poke_u64_u (void *ptr, uint64_t v) { memcpy (ptr, &v, sizeof (v)); }
1372
1373ecb_inline void ecb_poke_be_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_be_u16 (v)); }
1374ecb_inline void ecb_poke_be_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_be_u32 (v)); }
1375ecb_inline void ecb_poke_be_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_be_u64 (v)); }
1376
1377ecb_inline void ecb_poke_le_u16_u (void *ptr, uint_fast16_t v) { ecb_poke_u16_u (ptr, ecb_host_to_le_u16 (v)); }
1378ecb_inline void ecb_poke_le_u32_u (void *ptr, uint_fast32_t v) { ecb_poke_u32_u (ptr, ecb_host_to_le_u32 (v)); }
1379ecb_inline void ecb_poke_le_u64_u (void *ptr, uint_fast64_t v) { ecb_poke_u64_u (ptr, ecb_host_to_le_u64 (v)); }
1380
1381#if ECB_CPP
1382
1383inline uint8_t ecb_bswap (uint8_t v) { return v; }
1384inline uint16_t ecb_bswap (uint16_t v) { return ecb_bswap16 (v); }
1385inline uint32_t ecb_bswap (uint32_t v) { return ecb_bswap32 (v); }
1386inline uint64_t ecb_bswap (uint64_t v) { return ecb_bswap64 (v); }
1387
1388template<typename T> inline T ecb_be_to_host (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1389template<typename T> inline T ecb_le_to_host (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1390template<typename T> inline T ecb_peek (const void *ptr) { return *(const T *)ptr; }
1391template<typename T> inline T ecb_peek_be (const void *ptr) { return ecb_be_to_host (ecb_peek <T> (ptr)); }
1392template<typename T> inline T ecb_peek_le (const void *ptr) { return ecb_le_to_host (ecb_peek <T> (ptr)); }
1393template<typename T> inline T ecb_peek_u (const void *ptr) { T v; memcpy (&v, ptr, sizeof (v)); return v; }
1394template<typename T> inline T ecb_peek_be_u (const void *ptr) { return ecb_be_to_host (ecb_peek_u<T> (ptr)); }
1395template<typename T> inline T ecb_peek_le_u (const void *ptr) { return ecb_le_to_host (ecb_peek_u<T> (ptr)); }
1396
1397template<typename T> inline T ecb_host_to_be (T v) { return ecb_little_endian () ? ecb_bswap (v) : v; }
1398template<typename T> inline T ecb_host_to_le (T v) { return ecb_big_endian () ? ecb_bswap (v) : v; }
1399template<typename T> inline void ecb_poke (void *ptr, T v) { *(T *)ptr = v; }
1400template<typename T> inline void ecb_poke_be (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_be (v)); }
1401template<typename T> inline void ecb_poke_le (void *ptr, T v) { return ecb_poke <T> (ptr, ecb_host_to_le (v)); }
1402template<typename T> inline void ecb_poke_u (void *ptr, T v) { memcpy (ptr, &v, sizeof (v)); }
1403template<typename T> inline void ecb_poke_be_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_be (v)); }
1404template<typename T> inline void ecb_poke_le_u (void *ptr, T v) { return ecb_poke_u<T> (ptr, ecb_host_to_le (v)); }
1405
1406#endif
1407
1408/*****************************************************************************/
1409
1169#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1170 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1411 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1171#else 1412#else
1172 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1413 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
1173#endif 1414#endif
… …
1196 return N; 1437 return N;
1197 } 1438 }
1198#else 1439#else
1199 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1200#endif 1441#endif
1442
1443/*****************************************************************************/
1201 1444
1202ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x); 1445ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1203ecb_function_ ecb_const uint32_t 1446ecb_function_ ecb_const uint32_t
1204ecb_binary16_to_binary32 (uint32_t x) 1447ecb_binary16_to_binary32 (uint32_t x)
1205{ 1448{
… …
1314 || defined __sh__ \ 1557 || defined __sh__ \
1315 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1558 || 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__)) \ 1559 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1317 || defined __aarch64__ 1560 || defined __aarch64__
1318 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1319 #include <string.h> /* for memcpy */
1320#else 1562#else
1321 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1322#endif 1564#endif
1323 1565
1324#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1509/* ECB.H END */ 1751/* ECB.H END */
1510 1752
1511#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1753#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1512/* if your architecture doesn't need memory fences, e.g. because it is 1754/* if your architecture doesn't need memory fences, e.g. because it is
1513 * single-cpu/core, or if you use libev in a project that doesn't use libev 1755 * single-cpu/core, or if you use libev in a project that doesn't use libev
1514 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1756 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1515 * libev, in which cases the memory fences become nops. 1757 * libev, in which cases the memory fences become nops.
1516 * alternatively, you can remove this #error and link against libpthread, 1758 * alternatively, you can remove this #error and link against libpthread,
1517 * which will then provide the memory fences. 1759 * which will then provide the memory fences.
1518 */ 1760 */
1519# error "memory fences not defined for your architecture, please report" 1761# error "memory fences not defined for your architecture, please report"
… …
1523# define ECB_MEMORY_FENCE do { } while (0) 1765# define ECB_MEMORY_FENCE do { } while (0)
1524# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1766# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1525# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1767# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1526#endif 1768#endif
1527 1769
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 1770#define inline_size ecb_inline
1533 1771
1534#if EV_FEATURE_CODE 1772#if EV_FEATURE_CODE
1535# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1536#else 1774#else
1537# define inline_speed noinline static 1775# define inline_speed ecb_noinline static
1538#endif 1776#endif
1777
1778/*****************************************************************************/
1779/* raw syscall wrappers */
1780
1781#if EV_NEED_SYSCALL
1782
1783#include <sys/syscall.h>
1784
1785/*
1786 * define some syscall wrappers for common architectures
1787 * this is mostly for nice looks during debugging, not performance.
1788 * our syscalls return < 0, not == -1, on error. which is good
1789 * enough for linux aio.
1790 * TODO: arm is also common nowadays, maybe even mips and x86
1791 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1792 */
1793#if __GNUC__ && __linux && ECB_AMD64 && !EV_FEATURE_CODE
1794 /* the costly errno access probably kills this for size optimisation */
1795
1796 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1797 ({ \
1798 long res; \
1799 register unsigned long r6 __asm__ ("r9" ); \
1800 register unsigned long r5 __asm__ ("r8" ); \
1801 register unsigned long r4 __asm__ ("r10"); \
1802 register unsigned long r3 __asm__ ("rdx"); \
1803 register unsigned long r2 __asm__ ("rsi"); \
1804 register unsigned long r1 __asm__ ("rdi"); \
1805 if (narg >= 6) r6 = (unsigned long)(arg6); \
1806 if (narg >= 5) r5 = (unsigned long)(arg5); \
1807 if (narg >= 4) r4 = (unsigned long)(arg4); \
1808 if (narg >= 3) r3 = (unsigned long)(arg3); \
1809 if (narg >= 2) r2 = (unsigned long)(arg2); \
1810 if (narg >= 1) r1 = (unsigned long)(arg1); \
1811 __asm__ __volatile__ ( \
1812 "syscall\n\t" \
1813 : "=a" (res) \
1814 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1815 : "cc", "r11", "cx", "memory"); \
1816 errno = -res; \
1817 res; \
1818 })
1819
1820#endif
1821
1822#ifdef ev_syscall
1823 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1824 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1825 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1826 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1827 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1828 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1829 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1830#else
1831 #define ev_syscall0(nr) syscall (nr)
1832 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1833 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1834 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1835 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1836 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1837 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1838#endif
1839
1840#endif
1841
1842/*****************************************************************************/
1539 1843
1540#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1541 1845
1542#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1543# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
1544#else 1848#else
1545# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1849# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1546#endif 1850#endif
1547 1851
1548#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1852#define EMPTY /* required for microsofts broken pseudo-c compiler */
1549#define EMPTY2(a,b) /* used to suppress some warnings */
1550 1853
1551typedef ev_watcher *W; 1854typedef ev_watcher *W;
1552typedef ev_watcher_list *WL; 1855typedef ev_watcher_list *WL;
1553typedef ev_watcher_time *WT; 1856typedef ev_watcher_time *WT;
1554 1857
… …
1579# include "ev_win32.c" 1882# include "ev_win32.c"
1580#endif 1883#endif
1581 1884
1582/*****************************************************************************/ 1885/*****************************************************************************/
1583 1886
1887#if EV_USE_LINUXAIO
1888# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1889#endif
1890
1584/* define a suitable floor function (only used by periodics atm) */ 1891/* define a suitable floor function (only used by periodics atm) */
1585 1892
1586#if EV_USE_FLOOR 1893#if EV_USE_FLOOR
1587# include <math.h> 1894# include <math.h>
1588# define ev_floor(v) floor (v) 1895# define ev_floor(v) floor (v)
1589#else 1896#else
1590 1897
1591#include <float.h> 1898#include <float.h>
1592 1899
1593/* a floor() replacement function, should be independent of ev_tstamp type */ 1900/* a floor() replacement function, should be independent of ev_tstamp type */
1594noinline 1901ecb_noinline
1595static ev_tstamp 1902static ev_tstamp
1596ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1597{ 1904{
1598 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1599#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1600 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1601#else 1908#else
1602 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1603#endif 1910#endif
1604 1911
1912 /* special treatment for negative arguments */
1913 if (ecb_expect_false (v < 0.))
1914 {
1915 ev_tstamp f = -ev_floor (-v);
1916
1917 return f - (f == v ? 0 : 1);
1918 }
1919
1605 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1606 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1607 { 1922 {
1608 ev_tstamp f; 1923 ev_tstamp f;
1609 1924
1610 if (v == v - 1.) 1925 if (v == v - 1.)
1611 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1612 1927
1613 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1614 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1615 } 1930 }
1616 1931
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 */ 1932 /* fits into an unsigned long */
1626 return (unsigned long)v; 1933 return (unsigned long)v;
1627} 1934}
1628 1935
1629#endif 1936#endif
… …
1632 1939
1633#ifdef __linux 1940#ifdef __linux
1634# include <sys/utsname.h> 1941# include <sys/utsname.h>
1635#endif 1942#endif
1636 1943
1637noinline ecb_cold 1944ecb_noinline ecb_cold
1638static unsigned int 1945static unsigned int
1639ev_linux_version (void) 1946ev_linux_version (void)
1640{ 1947{
1641#ifdef __linux 1948#ifdef __linux
1642 unsigned int v = 0; 1949 unsigned int v = 0;
… …
1672} 1979}
1673 1980
1674/*****************************************************************************/ 1981/*****************************************************************************/
1675 1982
1676#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1677noinline ecb_cold 1984ecb_noinline ecb_cold
1678static void 1985static void
1679ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1680{ 1987{
1681 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1682} 1989}
… …
1689ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT 1996ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1690{ 1997{
1691 syserr_cb = cb; 1998 syserr_cb = cb;
1692} 1999}
1693 2000
1694noinline ecb_cold 2001ecb_noinline ecb_cold
1695static void 2002static void
1696ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1697{ 2004{
1698 if (!msg) 2005 if (!msg)
1699 msg = "(libev) system error"; 2006 msg = "(libev) system error";
… …
1770typedef struct 2077typedef struct
1771{ 2078{
1772 WL head; 2079 WL head;
1773 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1774 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 2081 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1775 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1776 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1777#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1778 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1779#endif 2086#endif
1780#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1781 SOCKET handle; 2088 SOCKET handle;
… …
1835 static struct ev_loop default_loop_struct; 2142 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 */ 2143 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1837 2144
1838#else 2145#else
1839 2146
1840 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2147 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1841 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1842 #include "ev_vars.h" 2149 #include "ev_vars.h"
1843 #undef VAR 2150 #undef VAR
1844 2151
1845 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1846 2153
1847#endif 2154#endif
1848 2155
1849#if EV_FEATURE_API 2156#if EV_FEATURE_API
1850# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2157# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1851# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2158# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1852# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1853#else 2160#else
1854# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1855# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1856# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1863#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1864ev_tstamp 2171ev_tstamp
1865ev_time (void) EV_NOEXCEPT 2172ev_time (void) EV_NOEXCEPT
1866{ 2173{
1867#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1868 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1869 { 2176 {
1870 struct timespec ts; 2177 struct timespec ts;
1871 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1872 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1873 } 2180 }
1874#endif 2181#endif
1875 2182
2183 {
1876 struct timeval tv; 2184 struct timeval tv;
1877 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1878 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1879} 2188}
1880#endif 2189#endif
1881 2190
1882inline_size ev_tstamp 2191inline_size ev_tstamp
1883get_clock (void) 2192get_clock (void)
1884{ 2193{
1885#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1886 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1887 { 2196 {
1888 struct timespec ts; 2197 struct timespec ts;
1889 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1890 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1891 } 2200 }
1892#endif 2201#endif
1893 2202
1894 return ev_time (); 2203 return ev_time ();
1895} 2204}
… …
1903#endif 2212#endif
1904 2213
1905void 2214void
1906ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1907{ 2216{
1908 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1909 { 2218 {
1910#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1911 struct timespec ts; 2220 struct timespec ts;
1912 2221
1913 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1914 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1915#elif defined _WIN32 2224#elif defined _WIN32
1916 /* maybe this should round up, as ms is very low resolution */ 2225 /* maybe this should round up, as ms is very low resolution */
1917 /* compared to select (µs) or nanosleep (ns) */ 2226 /* compared to select (µs) or nanosleep (ns) */
1918 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1919#else 2228#else
1920 struct timeval tv; 2229 struct timeval tv;
1921 2230
1922 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2231 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1923 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1953 } 2262 }
1954 2263
1955 return ncur; 2264 return ncur;
1956} 2265}
1957 2266
1958noinline ecb_cold 2267ecb_noinline ecb_cold
1959static void * 2268static void *
1960array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1961{ 2270{
1962 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1963 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1964} 2273}
1965 2274
2275#define array_needsize_noinit(base,offset,count)
2276
1966#define array_init_zero(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1967 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1968 2279
1969#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1970 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1971 { \ 2282 { \
1972 ecb_unused int ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1973 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1974 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1975 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1976 } 2287 }
1977 2288
1978#if 0 2289#if 0
1979#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1980 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 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 2300 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1990 2301
1991/*****************************************************************************/ 2302/*****************************************************************************/
1992 2303
1993/* dummy callback for pending events */ 2304/* dummy callback for pending events */
1994noinline 2305ecb_noinline
1995static void 2306static void
1996pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
1997{ 2308{
1998} 2309}
1999 2310
2000noinline 2311ecb_noinline
2001void 2312void
2002ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2003{ 2314{
2004 W w_ = (W)w; 2315 W w_ = (W)w;
2005 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
2006 2317
2007 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
2008 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
2009 else 2320 else
2010 { 2321 {
2011 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
2012 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2013 pendings [pri][w_->pending - 1].w = w_; 2324 pendings [pri][w_->pending - 1].w = w_;
2014 pendings [pri][w_->pending - 1].events = revents; 2325 pendings [pri][w_->pending - 1].events = revents;
2015 } 2326 }
2016 2327
2017 pendingpri = NUMPRI - 1; 2328 pendingpri = NUMPRI - 1;
2018} 2329}
2019 2330
2020inline_speed void 2331inline_speed void
2021feed_reverse (EV_P_ W w) 2332feed_reverse (EV_P_ W w)
2022{ 2333{
2023 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2334 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2024 rfeeds [rfeedcnt++] = w; 2335 rfeeds [rfeedcnt++] = w;
2025} 2336}
2026 2337
2027inline_size void 2338inline_size void
2028feed_reverse_done (EV_P_ int revents) 2339feed_reverse_done (EV_P_ int revents)
… …
2063inline_speed void 2374inline_speed void
2064fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
2065{ 2376{
2066 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
2067 2378
2068 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
2069 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
2070} 2381}
2071 2382
2072void 2383void
2073ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2081inline_size void 2392inline_size void
2082fd_reify (EV_P) 2393fd_reify (EV_P)
2083{ 2394{
2084 int i; 2395 int i;
2085 2396
2397 /* most backends do not modify the fdchanges list in backend_modfiy.
2398 * except io_uring, which has fixed-size buffers which might force us
2399 * to handle events in backend_modify, causing fdchanges to be amended,
2400 * which could result in an endless loop.
2401 * to avoid this, we do not dynamically handle fds that were added
2402 * during fd_reify. that means that for those backends, fdchangecnt
2403 * might be non-zero during poll, which must cause them to not block.
2404 * to not put too much of a burden on other backends, this detail
2405 * needs to be handled in the backend.
2406 */
2407 int changecnt = fdchangecnt;
2408
2086#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2087 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2088 { 2411 {
2089 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2090 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2091 2414
2092 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2106 } 2429 }
2107 } 2430 }
2108 } 2431 }
2109#endif 2432#endif
2110 2433
2111 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2112 { 2435 {
2113 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2114 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2115 ev_io *w; 2438 ev_io *w;
2116 2439
2117 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
2118 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
2119 2442
2120 anfd->reify = 0; 2443 anfd->reify = 0;
2121 2444
2122 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2123 { 2446 {
2124 anfd->events = 0; 2447 anfd->events = 0;
2125 2448
2126 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2449 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
2127 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
2132 2455
2133 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2134 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2135 } 2458 }
2136 2459
2460 /* normally, fdchangecnt hasn't changed. if it has, then new fds have been added.
2461 * this is a rare case (see beginning comment in this function), so we copy them to the
2462 * front and hope the backend handles this case.
2463 */
2464 if (ecb_expect_false (fdchangecnt != changecnt))
2465 memmove (fdchanges, fdchanges + changecnt, (fdchangecnt - changecnt) * sizeof (*fdchanges));
2466
2137 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2138} 2468}
2139 2469
2140/* something about the given fd changed */ 2470/* something about the given fd changed */
2141inline_size 2471inline_size
2142void 2472void
2143fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
2144{ 2474{
2145 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
2146 anfds [fd].reify |= flags; 2476 anfds [fd].reify |= flags;
2147 2477
2148 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
2149 { 2479 {
2150 ++fdchangecnt; 2480 ++fdchangecnt;
2151 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2152 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
2153 } 2483 }
2154} 2484}
2155 2485
2156/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2486/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
… …
2176 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
2177#endif 2507#endif
2178} 2508}
2179 2509
2180/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
2181noinline ecb_cold 2511ecb_noinline ecb_cold
2182static void 2512static void
2183fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
2184{ 2514{
2185 int fd; 2515 int fd;
2186 2516
… …
2189 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
2190 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
2191} 2521}
2192 2522
2193/* called on ENOMEM in select/poll to kill some fds and retry */ 2523/* called on ENOMEM in select/poll to kill some fds and retry */
2194noinline ecb_cold 2524ecb_noinline ecb_cold
2195static void 2525static void
2196fd_enomem (EV_P) 2526fd_enomem (EV_P)
2197{ 2527{
2198 int fd; 2528 int fd;
2199 2529
… …
2204 break; 2534 break;
2205 } 2535 }
2206} 2536}
2207 2537
2208/* usually called after fork if backend needs to re-arm all fds from scratch */ 2538/* usually called after fork if backend needs to re-arm all fds from scratch */
2209noinline 2539ecb_noinline
2210static void 2540static void
2211fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
2212{ 2542{
2213 int fd; 2543 int fd;
2214 2544
… …
2268 ev_tstamp minat; 2598 ev_tstamp minat;
2269 ANHE *minpos; 2599 ANHE *minpos;
2270 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2271 2601
2272 /* find minimum child */ 2602 /* find minimum child */
2273 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2274 { 2604 {
2275 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2606 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2277 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2607 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2278 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2608 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2279 } 2609 }
2280 else if (pos < E) 2610 else if (pos < E)
2281 { 2611 {
2282 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* 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)); 2613 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)); 2614 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)); 2615 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2286 } 2616 }
2287 else 2617 else
2288 break; 2618 break;
2289 2619
2290 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2298 2628
2299 heap [k] = he; 2629 heap [k] = he;
2300 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2301} 2631}
2302 2632
2303#else /* 4HEAP */ 2633#else /* not 4HEAP */
2304 2634
2305#define HEAP0 1 2635#define HEAP0 1
2306#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2307#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2308 2638
… …
2380 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2381} 2711}
2382 2712
2383/*****************************************************************************/ 2713/*****************************************************************************/
2384 2714
2385/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2386typedef struct 2716typedef struct
2387{ 2717{
2388 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2389#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2390 EV_P; 2720 EV_P;
… …
2396 2726
2397/*****************************************************************************/ 2727/*****************************************************************************/
2398 2728
2399#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2400 2730
2401noinline ecb_cold 2731ecb_noinline ecb_cold
2402static void 2732static void
2403evpipe_init (EV_P) 2733evpipe_init (EV_P)
2404{ 2734{
2405 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2406 { 2736 {
… …
2447inline_speed void 2777inline_speed void
2448evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2449{ 2779{
2450 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2780 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2451 2781
2452 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2453 return; 2783 return;
2454 2784
2455 *flag = 1; 2785 *flag = 1;
2456 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2786 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2457 2787
… …
2534 sig_pending = 0; 2864 sig_pending = 0;
2535 2865
2536 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2537 2867
2538 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2539 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2540 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2541 } 2871 }
2542#endif 2872#endif
2543 2873
2544#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2585#endif 2915#endif
2586 2916
2587 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2588} 2918}
2589 2919
2590noinline 2920ecb_noinline
2591void 2921void
2592ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2593{ 2923{
2594 WL w; 2924 WL w;
2595 2925
2596 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2597 return; 2927 return;
2598 2928
2599 --signum; 2929 --signum;
2600 2930
2601#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2602 /* it is permissible to try to feed a signal to the wrong loop */ 2932 /* it is permissible to try to feed a signal to the wrong loop */
2603 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2604 2934
2605 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2606 return; 2936 return;
2607#endif 2937#endif
2608 2938
2609 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2610 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2694 3024
2695#endif 3025#endif
2696 3026
2697/*****************************************************************************/ 3027/*****************************************************************************/
2698 3028
3029#if EV_USE_TIMERFD
3030
3031static void periodics_reschedule (EV_P);
3032
3033static void
3034timerfdcb (EV_P_ ev_io *iow, int revents)
3035{
3036 struct itimerspec its = { 0 };
3037
3038 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3039 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3040
3041 ev_rt_now = ev_time ();
3042 /* periodics_reschedule only needs ev_rt_now */
3043 /* but maybe in the future we want the full treatment. */
3044 /*
3045 now_floor = EV_TS_CONST (0.);
3046 time_update (EV_A_ EV_TSTAMP_HUGE);
3047 */
3048#if EV_PERIODIC_ENABLE
3049 periodics_reschedule (EV_A);
3050#endif
3051}
3052
3053ecb_noinline ecb_cold
3054static void
3055evtimerfd_init (EV_P)
3056{
3057 if (!ev_is_active (&timerfd_w))
3058 {
3059 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3060
3061 if (timerfd >= 0)
3062 {
3063 fd_intern (timerfd); /* just to be sure */
3064
3065 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3066 ev_set_priority (&timerfd_w, EV_MINPRI);
3067 ev_io_start (EV_A_ &timerfd_w);
3068 ev_unref (EV_A); /* watcher should not keep loop alive */
3069
3070 /* (re-) arm timer */
3071 timerfdcb (EV_A_ 0, 0);
3072 }
3073 }
3074}
3075
3076#endif
3077
3078/*****************************************************************************/
3079
2699#if EV_USE_IOCP 3080#if EV_USE_IOCP
2700# include "ev_iocp.c" 3081# include "ev_iocp.c"
2701#endif 3082#endif
2702#if EV_USE_PORT 3083#if EV_USE_PORT
2703# include "ev_port.c" 3084# include "ev_port.c"
… …
2705#if EV_USE_KQUEUE 3086#if EV_USE_KQUEUE
2706# include "ev_kqueue.c" 3087# include "ev_kqueue.c"
2707#endif 3088#endif
2708#if EV_USE_EPOLL 3089#if EV_USE_EPOLL
2709# include "ev_epoll.c" 3090# include "ev_epoll.c"
3091#endif
3092#if EV_USE_LINUXAIO
3093# include "ev_linuxaio.c"
3094#endif
3095#if EV_USE_IOURING
3096# include "ev_iouring.c"
2710#endif 3097#endif
2711#if EV_USE_POLL 3098#if EV_USE_POLL
2712# include "ev_poll.c" 3099# include "ev_poll.c"
2713#endif 3100#endif
2714#if EV_USE_SELECT 3101#if EV_USE_SELECT
… …
2743unsigned int 3130unsigned int
2744ev_supported_backends (void) EV_NOEXCEPT 3131ev_supported_backends (void) EV_NOEXCEPT
2745{ 3132{
2746 unsigned int flags = 0; 3133 unsigned int flags = 0;
2747 3134
2748 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2749 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3136 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2750 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3137 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2751 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3138 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2752 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3139 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2753 3140 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3141 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3142
2754 return flags; 3143 return flags;
2755} 3144}
2756 3145
2757ecb_cold 3146ecb_cold
2758unsigned int 3147unsigned int
… …
2772#endif 3161#endif
2773#ifdef __FreeBSD__ 3162#ifdef __FreeBSD__
2774 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3163 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2775#endif 3164#endif
2776 3165
3166 /* TODO: linuxaio is very experimental */
3167#if !EV_RECOMMEND_LINUXAIO
3168 flags &= ~EVBACKEND_LINUXAIO;
3169#endif
3170 /* TODO: linuxaio is super experimental */
3171#if !EV_RECOMMEND_IOURING
3172 flags &= ~EVBACKEND_IOURING;
3173#endif
3174
2777 return flags; 3175 return flags;
2778} 3176}
2779 3177
2780ecb_cold 3178ecb_cold
2781unsigned int 3179unsigned int
2782ev_embeddable_backends (void) EV_NOEXCEPT 3180ev_embeddable_backends (void) EV_NOEXCEPT
2783{ 3181{
2784 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3182 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2785 3183
2786 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3184 /* 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 */ 3185 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2788 flags &= ~EVBACKEND_EPOLL; 3186 flags &= ~EVBACKEND_EPOLL;
2789 3187
3188 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3189
2790 return flags; 3190 return flags;
2791} 3191}
2792 3192
2793unsigned int 3193unsigned int
2794ev_backend (EV_P) EV_NOEXCEPT 3194ev_backend (EV_P) EV_NOEXCEPT
… …
2846 acquire_cb = acquire; 3246 acquire_cb = acquire;
2847} 3247}
2848#endif 3248#endif
2849 3249
2850/* initialise a loop structure, must be zero-initialised */ 3250/* initialise a loop structure, must be zero-initialised */
2851noinline ecb_cold 3251ecb_noinline ecb_cold
2852static void 3252static void
2853loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3253loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2854{ 3254{
2855 if (!backend) 3255 if (!backend)
2856 { 3256 {
… …
2911 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3311 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2912#endif 3312#endif
2913#if EV_USE_SIGNALFD 3313#if EV_USE_SIGNALFD
2914 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3314 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2915#endif 3315#endif
3316#if EV_USE_TIMERFD
3317 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3318#endif
2916 3319
2917 if (!(flags & EVBACKEND_MASK)) 3320 if (!(flags & EVBACKEND_MASK))
2918 flags |= ev_recommended_backends (); 3321 flags |= ev_recommended_backends ();
2919 3322
2920#if EV_USE_IOCP 3323#if EV_USE_IOCP
2921 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3324 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2922#endif 3325#endif
2923#if EV_USE_PORT 3326#if EV_USE_PORT
2924 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3327 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2925#endif 3328#endif
2926#if EV_USE_KQUEUE 3329#if EV_USE_KQUEUE
2927 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3330 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3331#endif
3332#if EV_USE_IOURING
3333 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3334#endif
3335#if EV_USE_LINUXAIO
3336 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2928#endif 3337#endif
2929#if EV_USE_EPOLL 3338#if EV_USE_EPOLL
2930 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3339 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2931#endif 3340#endif
2932#if EV_USE_POLL 3341#if EV_USE_POLL
2933 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3342 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2934#endif 3343#endif
2935#if EV_USE_SELECT 3344#if EV_USE_SELECT
2936 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3345 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2937#endif 3346#endif
2938 3347
2939 ev_prepare_init (&pending_w, pendingcb); 3348 ev_prepare_init (&pending_w, pendingcb);
2940 3349
2941#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3350#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2958 return; 3367 return;
2959#endif 3368#endif
2960 3369
2961#if EV_CLEANUP_ENABLE 3370#if EV_CLEANUP_ENABLE
2962 /* queue cleanup watchers (and execute them) */ 3371 /* queue cleanup watchers (and execute them) */
2963 if (expect_false (cleanupcnt)) 3372 if (ecb_expect_false (cleanupcnt))
2964 { 3373 {
2965 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3374 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2966 EV_INVOKE_PENDING; 3375 EV_INVOKE_PENDING;
2967 } 3376 }
2968#endif 3377#endif
… …
2987#if EV_USE_SIGNALFD 3396#if EV_USE_SIGNALFD
2988 if (ev_is_active (&sigfd_w)) 3397 if (ev_is_active (&sigfd_w))
2989 close (sigfd); 3398 close (sigfd);
2990#endif 3399#endif
2991 3400
3401#if EV_USE_TIMERFD
3402 if (ev_is_active (&timerfd_w))
3403 close (timerfd);
3404#endif
3405
2992#if EV_USE_INOTIFY 3406#if EV_USE_INOTIFY
2993 if (fs_fd >= 0) 3407 if (fs_fd >= 0)
2994 close (fs_fd); 3408 close (fs_fd);
2995#endif 3409#endif
2996 3410
2997 if (backend_fd >= 0) 3411 if (backend_fd >= 0)
2998 close (backend_fd); 3412 close (backend_fd);
2999 3413
3000#if EV_USE_IOCP 3414#if EV_USE_IOCP
3001 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3415 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
3002#endif 3416#endif
3003#if EV_USE_PORT 3417#if EV_USE_PORT
3004 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3418 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3005#endif 3419#endif
3006#if EV_USE_KQUEUE 3420#if EV_USE_KQUEUE
3007 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3421 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3422#endif
3423#if EV_USE_IOURING
3424 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3425#endif
3426#if EV_USE_LINUXAIO
3427 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3008#endif 3428#endif
3009#if EV_USE_EPOLL 3429#if EV_USE_EPOLL
3010 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3430 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3011#endif 3431#endif
3012#if EV_USE_POLL 3432#if EV_USE_POLL
3013 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3433 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3014#endif 3434#endif
3015#if EV_USE_SELECT 3435#if EV_USE_SELECT
3016 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3436 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3017#endif 3437#endif
3018 3438
3019 for (i = NUMPRI; i--; ) 3439 for (i = NUMPRI; i--; )
3020 { 3440 {
3021 array_free (pending, [i]); 3441 array_free (pending, [i]);
… …
3063 3483
3064inline_size void 3484inline_size void
3065loop_fork (EV_P) 3485loop_fork (EV_P)
3066{ 3486{
3067#if EV_USE_PORT 3487#if EV_USE_PORT
3068 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3488 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3069#endif 3489#endif
3070#if EV_USE_KQUEUE 3490#if EV_USE_KQUEUE
3071 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3491 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3492#endif
3493#if EV_USE_IOURING
3494 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3495#endif
3496#if EV_USE_LINUXAIO
3497 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3072#endif 3498#endif
3073#if EV_USE_EPOLL 3499#if EV_USE_EPOLL
3074 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3500 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3075#endif 3501#endif
3076#if EV_USE_INOTIFY 3502#if EV_USE_INOTIFY
3077 infy_fork (EV_A); 3503 infy_fork (EV_A);
3078#endif 3504#endif
3079 3505
3506 if (postfork != 2)
3507 {
3508 #if EV_USE_SIGNALFD
3509 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3510 #endif
3511
3512 #if EV_USE_TIMERFD
3513 if (ev_is_active (&timerfd_w))
3514 {
3515 ev_ref (EV_A);
3516 ev_io_stop (EV_A_ &timerfd_w);
3517
3518 close (timerfd);
3519 timerfd = -2;
3520
3521 evtimerfd_init (EV_A);
3522 /* reschedule periodics, in case we missed something */
3523 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3524 }
3525 #endif
3526
3080#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3527 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3081 if (ev_is_active (&pipe_w) && postfork != 2) 3528 if (ev_is_active (&pipe_w))
3082 { 3529 {
3083 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3530 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3084 3531
3085 ev_ref (EV_A); 3532 ev_ref (EV_A);
3086 ev_io_stop (EV_A_ &pipe_w); 3533 ev_io_stop (EV_A_ &pipe_w);
3087 3534
3088 if (evpipe [0] >= 0) 3535 if (evpipe [0] >= 0)
3089 EV_WIN32_CLOSE_FD (evpipe [0]); 3536 EV_WIN32_CLOSE_FD (evpipe [0]);
3090 3537
3091 evpipe_init (EV_A); 3538 evpipe_init (EV_A);
3092 /* iterate over everything, in case we missed something before */ 3539 /* iterate over everything, in case we missed something before */
3093 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3540 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3541 }
3542 #endif
3094 } 3543 }
3095#endif
3096 3544
3097 postfork = 0; 3545 postfork = 0;
3098} 3546}
3099 3547
3100#if EV_MULTIPLICITY 3548#if EV_MULTIPLICITY
… …
3116} 3564}
3117 3565
3118#endif /* multiplicity */ 3566#endif /* multiplicity */
3119 3567
3120#if EV_VERIFY 3568#if EV_VERIFY
3121noinline ecb_cold 3569ecb_noinline ecb_cold
3122static void 3570static void
3123verify_watcher (EV_P_ W w) 3571verify_watcher (EV_P_ W w)
3124{ 3572{
3125 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3573 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3126 3574
3127 if (w->pending) 3575 if (w->pending)
3128 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3576 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3129} 3577}
3130 3578
3131noinline ecb_cold 3579ecb_noinline ecb_cold
3132static void 3580static void
3133verify_heap (EV_P_ ANHE *heap, int N) 3581verify_heap (EV_P_ ANHE *heap, int N)
3134{ 3582{
3135 int i; 3583 int i;
3136 3584
… …
3142 3590
3143 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3591 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3144 } 3592 }
3145} 3593}
3146 3594
3147noinline ecb_cold 3595ecb_noinline ecb_cold
3148static void 3596static void
3149array_verify (EV_P_ W *ws, int cnt) 3597array_verify (EV_P_ W *ws, int cnt)
3150{ 3598{
3151 while (cnt--) 3599 while (cnt--)
3152 { 3600 {
… …
3301 count += pendingcnt [pri]; 3749 count += pendingcnt [pri];
3302 3750
3303 return count; 3751 return count;
3304} 3752}
3305 3753
3306noinline 3754ecb_noinline
3307void 3755void
3308ev_invoke_pending (EV_P) 3756ev_invoke_pending (EV_P)
3309{ 3757{
3310 pendingpri = NUMPRI; 3758 pendingpri = NUMPRI;
3311 3759
… …
3330/* make idle watchers pending. this handles the "call-idle */ 3778/* make idle watchers pending. this handles the "call-idle */
3331/* only when higher priorities are idle" logic */ 3779/* only when higher priorities are idle" logic */
3332inline_size void 3780inline_size void
3333idle_reify (EV_P) 3781idle_reify (EV_P)
3334{ 3782{
3335 if (expect_false (idleall)) 3783 if (ecb_expect_false (idleall))
3336 { 3784 {
3337 int pri; 3785 int pri;
3338 3786
3339 for (pri = NUMPRI; pri--; ) 3787 for (pri = NUMPRI; pri--; )
3340 { 3788 {
… …
3370 { 3818 {
3371 ev_at (w) += w->repeat; 3819 ev_at (w) += w->repeat;
3372 if (ev_at (w) < mn_now) 3820 if (ev_at (w) < mn_now)
3373 ev_at (w) = mn_now; 3821 ev_at (w) = mn_now;
3374 3822
3375 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3823 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3376 3824
3377 ANHE_at_cache (timers [HEAP0]); 3825 ANHE_at_cache (timers [HEAP0]);
3378 downheap (timers, timercnt, HEAP0); 3826 downheap (timers, timercnt, HEAP0);
3379 } 3827 }
3380 else 3828 else
… …
3389 } 3837 }
3390} 3838}
3391 3839
3392#if EV_PERIODIC_ENABLE 3840#if EV_PERIODIC_ENABLE
3393 3841
3394noinline 3842ecb_noinline
3395static void 3843static void
3396periodic_recalc (EV_P_ ev_periodic *w) 3844periodic_recalc (EV_P_ ev_periodic *w)
3397{ 3845{
3398 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3846 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); 3847 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
… …
3402 while (at <= ev_rt_now) 3850 while (at <= ev_rt_now)
3403 { 3851 {
3404 ev_tstamp nat = at + w->interval; 3852 ev_tstamp nat = at + w->interval;
3405 3853
3406 /* when resolution fails us, we use ev_rt_now */ 3854 /* when resolution fails us, we use ev_rt_now */
3407 if (expect_false (nat == at)) 3855 if (ecb_expect_false (nat == at))
3408 { 3856 {
3409 at = ev_rt_now; 3857 at = ev_rt_now;
3410 break; 3858 break;
3411 } 3859 }
3412 3860
… …
3458 } 3906 }
3459} 3907}
3460 3908
3461/* simply recalculate all periodics */ 3909/* simply recalculate all periodics */
3462/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3910/* TODO: maybe ensure that at least one event happens when jumping forward? */
3463noinline ecb_cold 3911ecb_noinline ecb_cold
3464static void 3912static void
3465periodics_reschedule (EV_P) 3913periodics_reschedule (EV_P)
3466{ 3914{
3467 int i; 3915 int i;
3468 3916
… …
3482 reheap (periodics, periodiccnt); 3930 reheap (periodics, periodiccnt);
3483} 3931}
3484#endif 3932#endif
3485 3933
3486/* adjust all timers by a given offset */ 3934/* adjust all timers by a given offset */
3487noinline ecb_cold 3935ecb_noinline ecb_cold
3488static void 3936static void
3489timers_reschedule (EV_P_ ev_tstamp adjust) 3937timers_reschedule (EV_P_ ev_tstamp adjust)
3490{ 3938{
3491 int i; 3939 int i;
3492 3940
… …
3502/* also detect if there was a timejump, and act accordingly */ 3950/* also detect if there was a timejump, and act accordingly */
3503inline_speed void 3951inline_speed void
3504time_update (EV_P_ ev_tstamp max_block) 3952time_update (EV_P_ ev_tstamp max_block)
3505{ 3953{
3506#if EV_USE_MONOTONIC 3954#if EV_USE_MONOTONIC
3507 if (expect_true (have_monotonic)) 3955 if (ecb_expect_true (have_monotonic))
3508 { 3956 {
3509 int i; 3957 int i;
3510 ev_tstamp odiff = rtmn_diff; 3958 ev_tstamp odiff = rtmn_diff;
3511 3959
3512 mn_now = get_clock (); 3960 mn_now = get_clock ();
3513 3961
3514 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3962 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3515 /* interpolate in the meantime */ 3963 /* interpolate in the meantime */
3516 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3964 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3517 { 3965 {
3518 ev_rt_now = rtmn_diff + mn_now; 3966 ev_rt_now = rtmn_diff + mn_now;
3519 return; 3967 return;
3520 } 3968 }
3521 3969
… …
3535 ev_tstamp diff; 3983 ev_tstamp diff;
3536 rtmn_diff = ev_rt_now - mn_now; 3984 rtmn_diff = ev_rt_now - mn_now;
3537 3985
3538 diff = odiff - rtmn_diff; 3986 diff = odiff - rtmn_diff;
3539 3987
3540 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3988 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3541 return; /* all is well */ 3989 return; /* all is well */
3542 3990
3543 ev_rt_now = ev_time (); 3991 ev_rt_now = ev_time ();
3544 mn_now = get_clock (); 3992 mn_now = get_clock ();
3545 now_floor = mn_now; 3993 now_floor = mn_now;
… …
3554 else 4002 else
3555#endif 4003#endif
3556 { 4004 {
3557 ev_rt_now = ev_time (); 4005 ev_rt_now = ev_time ();
3558 4006
3559 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4007 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3560 { 4008 {
3561 /* adjust timers. this is easy, as the offset is the same for all of them */ 4009 /* 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); 4010 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3563#if EV_PERIODIC_ENABLE 4011#if EV_PERIODIC_ENABLE
3564 periodics_reschedule (EV_A); 4012 periodics_reschedule (EV_A);
… …
3587#if EV_VERIFY >= 2 4035#if EV_VERIFY >= 2
3588 ev_verify (EV_A); 4036 ev_verify (EV_A);
3589#endif 4037#endif
3590 4038
3591#ifndef _WIN32 4039#ifndef _WIN32
3592 if (expect_false (curpid)) /* penalise the forking check even more */ 4040 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3593 if (expect_false (getpid () != curpid)) 4041 if (ecb_expect_false (getpid () != curpid))
3594 { 4042 {
3595 curpid = getpid (); 4043 curpid = getpid ();
3596 postfork = 1; 4044 postfork = 1;
3597 } 4045 }
3598#endif 4046#endif
3599 4047
3600#if EV_FORK_ENABLE 4048#if EV_FORK_ENABLE
3601 /* we might have forked, so queue fork handlers */ 4049 /* we might have forked, so queue fork handlers */
3602 if (expect_false (postfork)) 4050 if (ecb_expect_false (postfork))
3603 if (forkcnt) 4051 if (forkcnt)
3604 { 4052 {
3605 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4053 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3606 EV_INVOKE_PENDING; 4054 EV_INVOKE_PENDING;
3607 } 4055 }
3608#endif 4056#endif
3609 4057
3610#if EV_PREPARE_ENABLE 4058#if EV_PREPARE_ENABLE
3611 /* queue prepare watchers (and execute them) */ 4059 /* queue prepare watchers (and execute them) */
3612 if (expect_false (preparecnt)) 4060 if (ecb_expect_false (preparecnt))
3613 { 4061 {
3614 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3615 EV_INVOKE_PENDING; 4063 EV_INVOKE_PENDING;
3616 } 4064 }
3617#endif 4065#endif
3618 4066
3619 if (expect_false (loop_done)) 4067 if (ecb_expect_false (loop_done))
3620 break; 4068 break;
3621 4069
3622 /* we might have forked, so reify kernel state if necessary */ 4070 /* we might have forked, so reify kernel state if necessary */
3623 if (expect_false (postfork)) 4071 if (ecb_expect_false (postfork))
3624 loop_fork (EV_A); 4072 loop_fork (EV_A);
3625 4073
3626 /* update fd-related kernel structures */ 4074 /* update fd-related kernel structures */
3627 fd_reify (EV_A); 4075 fd_reify (EV_A);
3628 4076
… …
3633 4081
3634 /* remember old timestamp for io_blocktime calculation */ 4082 /* remember old timestamp for io_blocktime calculation */
3635 ev_tstamp prev_mn_now = mn_now; 4083 ev_tstamp prev_mn_now = mn_now;
3636 4084
3637 /* update time to cancel out callback processing overhead */ 4085 /* update time to cancel out callback processing overhead */
3638 time_update (EV_A_ 1e100); 4086 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3639 4087
3640 /* from now on, we want a pipe-wake-up */ 4088 /* from now on, we want a pipe-wake-up */
3641 pipe_write_wanted = 1; 4089 pipe_write_wanted = 1;
3642 4090
3643 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4091 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3644 4092
3645 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4093 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3646 { 4094 {
3647 waittime = MAX_BLOCKTIME; 4095 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4096
4097#if EV_USE_TIMERFD
4098 /* sleep a lot longer when we can reliably detect timejumps */
4099 if (ecb_expect_true (timerfd >= 0))
4100 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4101#endif
4102#if !EV_PERIODIC_ENABLE
4103 /* without periodics but with monotonic clock there is no need */
4104 /* for any time jump detection, so sleep longer */
4105 if (ecb_expect_true (have_monotonic))
4106 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4107#endif
3648 4108
3649 if (timercnt) 4109 if (timercnt)
3650 { 4110 {
3651 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4111 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3652 if (waittime > to) waittime = to; 4112 if (waittime > to) waittime = to;
… …
3659 if (waittime > to) waittime = to; 4119 if (waittime > to) waittime = to;
3660 } 4120 }
3661#endif 4121#endif
3662 4122
3663 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4123 /* don't let timeouts decrease the waittime below timeout_blocktime */
3664 if (expect_false (waittime < timeout_blocktime)) 4124 if (ecb_expect_false (waittime < timeout_blocktime))
3665 waittime = timeout_blocktime; 4125 waittime = timeout_blocktime;
3666 4126
3667 /* at this point, we NEED to wait, so we have to ensure */ 4127 /* now there are two more special cases left, either we have
3668 /* to pass a minimum nonzero value to the backend */ 4128 * already-expired timers, so we should not sleep, or we have timers
4129 * that expire very soon, in which case we need to wait for a minimum
4130 * amount of time for some event loop backends.
4131 */
3669 if (expect_false (waittime < backend_mintime)) 4132 if (ecb_expect_false (waittime < backend_mintime))
4133 waittime = waittime <= EV_TS_CONST (0.)
4134 ? EV_TS_CONST (0.)
3670 waittime = backend_mintime; 4135 : backend_mintime;
3671 4136
3672 /* extra check because io_blocktime is commonly 0 */ 4137 /* extra check because io_blocktime is commonly 0 */
3673 if (expect_false (io_blocktime)) 4138 if (ecb_expect_false (io_blocktime))
3674 { 4139 {
3675 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4140 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3676 4141
3677 if (sleeptime > waittime - backend_mintime) 4142 if (sleeptime > waittime - backend_mintime)
3678 sleeptime = waittime - backend_mintime; 4143 sleeptime = waittime - backend_mintime;
3679 4144
3680 if (expect_true (sleeptime > 0.)) 4145 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3681 { 4146 {
3682 ev_sleep (sleeptime); 4147 ev_sleep (sleeptime);
3683 waittime -= sleeptime; 4148 waittime -= sleeptime;
3684 } 4149 }
3685 } 4150 }
… …
3699 { 4164 {
3700 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4165 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); 4166 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3702 } 4167 }
3703 4168
3704
3705 /* update ev_rt_now, do magic */ 4169 /* update ev_rt_now, do magic */
3706 time_update (EV_A_ waittime + sleeptime); 4170 time_update (EV_A_ waittime + sleeptime);
3707 } 4171 }
3708 4172
3709 /* queue pending timers and reschedule them */ 4173 /* queue pending timers and reschedule them */
… …
3717 idle_reify (EV_A); 4181 idle_reify (EV_A);
3718#endif 4182#endif
3719 4183
3720#if EV_CHECK_ENABLE 4184#if EV_CHECK_ENABLE
3721 /* queue check watchers, to be executed first */ 4185 /* queue check watchers, to be executed first */
3722 if (expect_false (checkcnt)) 4186 if (ecb_expect_false (checkcnt))
3723 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4187 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3724#endif 4188#endif
3725 4189
3726 EV_INVOKE_PENDING; 4190 EV_INVOKE_PENDING;
3727 } 4191 }
3728 while (expect_true ( 4192 while (ecb_expect_true (
3729 activecnt 4193 activecnt
3730 && !loop_done 4194 && !loop_done
3731 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4195 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3732 )); 4196 ));
3733 4197
… …
3760} 4224}
3761 4225
3762void 4226void
3763ev_now_update (EV_P) EV_NOEXCEPT 4227ev_now_update (EV_P) EV_NOEXCEPT
3764{ 4228{
3765 time_update (EV_A_ 1e100); 4229 time_update (EV_A_ EV_TSTAMP_HUGE);
3766} 4230}
3767 4231
3768void 4232void
3769ev_suspend (EV_P) EV_NOEXCEPT 4233ev_suspend (EV_P) EV_NOEXCEPT
3770{ 4234{
… …
3797inline_size void 4261inline_size void
3798wlist_del (WL *head, WL elem) 4262wlist_del (WL *head, WL elem)
3799{ 4263{
3800 while (*head) 4264 while (*head)
3801 { 4265 {
3802 if (expect_true (*head == elem)) 4266 if (ecb_expect_true (*head == elem))
3803 { 4267 {
3804 *head = elem->next; 4268 *head = elem->next;
3805 break; 4269 break;
3806 } 4270 }
3807 4271
… …
3824ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 4288ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3825{ 4289{
3826 W w_ = (W)w; 4290 W w_ = (W)w;
3827 int pending = w_->pending; 4291 int pending = w_->pending;
3828 4292
3829 if (expect_true (pending)) 4293 if (ecb_expect_true (pending))
3830 { 4294 {
3831 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4295 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3832 p->w = (W)&pending_w; 4296 p->w = (W)&pending_w;
3833 w_->pending = 0; 4297 w_->pending = 0;
3834 return p->events; 4298 return p->events;
… …
3861 w->active = 0; 4325 w->active = 0;
3862} 4326}
3863 4327
3864/*****************************************************************************/ 4328/*****************************************************************************/
3865 4329
3866noinline 4330ecb_noinline
3867void 4331void
3868ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4332ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3869{ 4333{
3870 int fd = w->fd; 4334 int fd = w->fd;
3871 4335
3872 if (expect_false (ev_is_active (w))) 4336 if (ecb_expect_false (ev_is_active (w)))
3873 return; 4337 return;
3874 4338
3875 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4339 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)))); 4340 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3877 4341
4342#if EV_VERIFY >= 2
4343 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4344#endif
3878 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3879 4346
3880 ev_start (EV_A_ (W)w, 1); 4347 ev_start (EV_A_ (W)w, 1);
3881 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4348 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3882 wlist_add (&anfds[fd].head, (WL)w); 4349 wlist_add (&anfds[fd].head, (WL)w);
3883 4350
3884 /* common bug, apparently */ 4351 /* common bug, apparently */
3885 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4352 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3886 4353
… …
3888 w->events &= ~EV__IOFDSET; 4355 w->events &= ~EV__IOFDSET;
3889 4356
3890 EV_FREQUENT_CHECK; 4357 EV_FREQUENT_CHECK;
3891} 4358}
3892 4359
3893noinline 4360ecb_noinline
3894void 4361void
3895ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4362ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3896{ 4363{
3897 clear_pending (EV_A_ (W)w); 4364 clear_pending (EV_A_ (W)w);
3898 if (expect_false (!ev_is_active (w))) 4365 if (ecb_expect_false (!ev_is_active (w)))
3899 return; 4366 return;
3900 4367
3901 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4368 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3902 4369
4370#if EV_VERIFY >= 2
4371 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4372#endif
3903 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3904 4374
3905 wlist_del (&anfds[w->fd].head, (WL)w); 4375 wlist_del (&anfds[w->fd].head, (WL)w);
3906 ev_stop (EV_A_ (W)w); 4376 ev_stop (EV_A_ (W)w);
3907 4377
3908 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4378 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3909 4379
3910 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
3911} 4381}
3912 4382
3913noinline 4383ecb_noinline
3914void 4384void
3915ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4385ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3916{ 4386{
3917 if (expect_false (ev_is_active (w))) 4387 if (ecb_expect_false (ev_is_active (w)))
3918 return; 4388 return;
3919 4389
3920 ev_at (w) += mn_now; 4390 ev_at (w) += mn_now;
3921 4391
3922 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4392 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3923 4393
3924 EV_FREQUENT_CHECK; 4394 EV_FREQUENT_CHECK;
3925 4395
3926 ++timercnt; 4396 ++timercnt;
3927 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4397 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3928 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4398 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3929 ANHE_w (timers [ev_active (w)]) = (WT)w; 4399 ANHE_w (timers [ev_active (w)]) = (WT)w;
3930 ANHE_at_cache (timers [ev_active (w)]); 4400 ANHE_at_cache (timers [ev_active (w)]);
3931 upheap (timers, ev_active (w)); 4401 upheap (timers, ev_active (w));
3932 4402
3933 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3934 4404
3935 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4405 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3936} 4406}
3937 4407
3938noinline 4408ecb_noinline
3939void 4409void
3940ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4410ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3941{ 4411{
3942 clear_pending (EV_A_ (W)w); 4412 clear_pending (EV_A_ (W)w);
3943 if (expect_false (!ev_is_active (w))) 4413 if (ecb_expect_false (!ev_is_active (w)))
3944 return; 4414 return;
3945 4415
3946 EV_FREQUENT_CHECK; 4416 EV_FREQUENT_CHECK;
3947 4417
3948 { 4418 {
… …
3950 4420
3951 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4421 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3952 4422
3953 --timercnt; 4423 --timercnt;
3954 4424
3955 if (expect_true (active < timercnt + HEAP0)) 4425 if (ecb_expect_true (active < timercnt + HEAP0))
3956 { 4426 {
3957 timers [active] = timers [timercnt + HEAP0]; 4427 timers [active] = timers [timercnt + HEAP0];
3958 adjustheap (timers, timercnt, active); 4428 adjustheap (timers, timercnt, active);
3959 } 4429 }
3960 } 4430 }
… …
3964 ev_stop (EV_A_ (W)w); 4434 ev_stop (EV_A_ (W)w);
3965 4435
3966 EV_FREQUENT_CHECK; 4436 EV_FREQUENT_CHECK;
3967} 4437}
3968 4438
3969noinline 4439ecb_noinline
3970void 4440void
3971ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4441ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3972{ 4442{
3973 EV_FREQUENT_CHECK; 4443 EV_FREQUENT_CHECK;
3974 4444
… …
3995} 4465}
3996 4466
3997ev_tstamp 4467ev_tstamp
3998ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4468ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3999{ 4469{
4000 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4470 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
4001} 4471}
4002 4472
4003#if EV_PERIODIC_ENABLE 4473#if EV_PERIODIC_ENABLE
4004noinline 4474ecb_noinline
4005void 4475void
4006ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4476ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4007{ 4477{
4008 if (expect_false (ev_is_active (w))) 4478 if (ecb_expect_false (ev_is_active (w)))
4009 return; 4479 return;
4480
4481#if EV_USE_TIMERFD
4482 if (timerfd == -2)
4483 evtimerfd_init (EV_A);
4484#endif
4010 4485
4011 if (w->reschedule_cb) 4486 if (w->reschedule_cb)
4012 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4487 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4013 else if (w->interval) 4488 else if (w->interval)
4014 { 4489 {
… …
4020 4495
4021 EV_FREQUENT_CHECK; 4496 EV_FREQUENT_CHECK;
4022 4497
4023 ++periodiccnt; 4498 ++periodiccnt;
4024 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4499 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4025 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4500 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4026 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4501 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4027 ANHE_at_cache (periodics [ev_active (w)]); 4502 ANHE_at_cache (periodics [ev_active (w)]);
4028 upheap (periodics, ev_active (w)); 4503 upheap (periodics, ev_active (w));
4029 4504
4030 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
4031 4506
4032 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4507 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
4033} 4508}
4034 4509
4035noinline 4510ecb_noinline
4036void 4511void
4037ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4512ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4038{ 4513{
4039 clear_pending (EV_A_ (W)w); 4514 clear_pending (EV_A_ (W)w);
4040 if (expect_false (!ev_is_active (w))) 4515 if (ecb_expect_false (!ev_is_active (w)))
4041 return; 4516 return;
4042 4517
4043 EV_FREQUENT_CHECK; 4518 EV_FREQUENT_CHECK;
4044 4519
4045 { 4520 {
… …
4047 4522
4048 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4523 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4049 4524
4050 --periodiccnt; 4525 --periodiccnt;
4051 4526
4052 if (expect_true (active < periodiccnt + HEAP0)) 4527 if (ecb_expect_true (active < periodiccnt + HEAP0))
4053 { 4528 {
4054 periodics [active] = periodics [periodiccnt + HEAP0]; 4529 periodics [active] = periodics [periodiccnt + HEAP0];
4055 adjustheap (periodics, periodiccnt, active); 4530 adjustheap (periodics, periodiccnt, active);
4056 } 4531 }
4057 } 4532 }
… …
4059 ev_stop (EV_A_ (W)w); 4534 ev_stop (EV_A_ (W)w);
4060 4535
4061 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
4062} 4537}
4063 4538
4064noinline 4539ecb_noinline
4065void 4540void
4066ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4541ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4067{ 4542{
4068 /* TODO: use adjustheap and recalculation */ 4543 /* TODO: use adjustheap and recalculation */
4069 ev_periodic_stop (EV_A_ w); 4544 ev_periodic_stop (EV_A_ w);
… …
4075# define SA_RESTART 0 4550# define SA_RESTART 0
4076#endif 4551#endif
4077 4552
4078#if EV_SIGNAL_ENABLE 4553#if EV_SIGNAL_ENABLE
4079 4554
4080noinline 4555ecb_noinline
4081void 4556void
4082ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4557ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4083{ 4558{
4084 if (expect_false (ev_is_active (w))) 4559 if (ecb_expect_false (ev_is_active (w)))
4085 return; 4560 return;
4086 4561
4087 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4562 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4088 4563
4089#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
… …
4158 } 4633 }
4159 4634
4160 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
4161} 4636}
4162 4637
4163noinline 4638ecb_noinline
4164void 4639void
4165ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4640ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4166{ 4641{
4167 clear_pending (EV_A_ (W)w); 4642 clear_pending (EV_A_ (W)w);
4168 if (expect_false (!ev_is_active (w))) 4643 if (ecb_expect_false (!ev_is_active (w)))
4169 return; 4644 return;
4170 4645
4171 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4172 4647
4173 wlist_del (&signals [w->signum - 1].head, (WL)w); 4648 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4206ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4681ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4207{ 4682{
4208#if EV_MULTIPLICITY 4683#if EV_MULTIPLICITY
4209 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4684 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4210#endif 4685#endif
4211 if (expect_false (ev_is_active (w))) 4686 if (ecb_expect_false (ev_is_active (w)))
4212 return; 4687 return;
4213 4688
4214 EV_FREQUENT_CHECK; 4689 EV_FREQUENT_CHECK;
4215 4690
4216 ev_start (EV_A_ (W)w, 1); 4691 ev_start (EV_A_ (W)w, 1);
… …
4221 4696
4222void 4697void
4223ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4698ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4224{ 4699{
4225 clear_pending (EV_A_ (W)w); 4700 clear_pending (EV_A_ (W)w);
4226 if (expect_false (!ev_is_active (w))) 4701 if (ecb_expect_false (!ev_is_active (w)))
4227 return; 4702 return;
4228 4703
4229 EV_FREQUENT_CHECK; 4704 EV_FREQUENT_CHECK;
4230 4705
4231 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4706 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4245 4720
4246#define DEF_STAT_INTERVAL 5.0074891 4721#define DEF_STAT_INTERVAL 5.0074891
4247#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4722#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4248#define MIN_STAT_INTERVAL 0.1074891 4723#define MIN_STAT_INTERVAL 0.1074891
4249 4724
4250noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4725ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4251 4726
4252#if EV_USE_INOTIFY 4727#if EV_USE_INOTIFY
4253 4728
4254/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4729/* 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) 4730# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4256 4731
4257noinline 4732ecb_noinline
4258static void 4733static void
4259infy_add (EV_P_ ev_stat *w) 4734infy_add (EV_P_ ev_stat *w)
4260{ 4735{
4261 w->wd = inotify_add_watch (fs_fd, w->path, 4736 w->wd = inotify_add_watch (fs_fd, w->path,
4262 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4737 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4327 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4802 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4328 ev_timer_again (EV_A_ &w->timer); 4803 ev_timer_again (EV_A_ &w->timer);
4329 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4804 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4330} 4805}
4331 4806
4332noinline 4807ecb_noinline
4333static void 4808static void
4334infy_del (EV_P_ ev_stat *w) 4809infy_del (EV_P_ ev_stat *w)
4335{ 4810{
4336 int slot; 4811 int slot;
4337 int wd = w->wd; 4812 int wd = w->wd;
… …
4345 4820
4346 /* remove this watcher, if others are watching it, they will rearm */ 4821 /* remove this watcher, if others are watching it, they will rearm */
4347 inotify_rm_watch (fs_fd, wd); 4822 inotify_rm_watch (fs_fd, wd);
4348} 4823}
4349 4824
4350noinline 4825ecb_noinline
4351static void 4826static void
4352infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4827infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4353{ 4828{
4354 if (slot < 0) 4829 if (slot < 0)
4355 /* overflow, need to check for all hash slots */ 4830 /* overflow, need to check for all hash slots */
… …
4501 w->attr.st_nlink = 0; 4976 w->attr.st_nlink = 0;
4502 else if (!w->attr.st_nlink) 4977 else if (!w->attr.st_nlink)
4503 w->attr.st_nlink = 1; 4978 w->attr.st_nlink = 1;
4504} 4979}
4505 4980
4506noinline 4981ecb_noinline
4507static void 4982static void
4508stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4983stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4509{ 4984{
4510 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4985 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4511 4986
… …
4545} 5020}
4546 5021
4547void 5022void
4548ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 5023ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4549{ 5024{
4550 if (expect_false (ev_is_active (w))) 5025 if (ecb_expect_false (ev_is_active (w)))
4551 return; 5026 return;
4552 5027
4553 ev_stat_stat (EV_A_ w); 5028 ev_stat_stat (EV_A_ w);
4554 5029
4555 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5030 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4577 5052
4578void 5053void
4579ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 5054ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4580{ 5055{
4581 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4582 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4583 return; 5058 return;
4584 5059
4585 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4586 5061
4587#if EV_USE_INOTIFY 5062#if EV_USE_INOTIFY
… …
4602 5077
4603#if EV_IDLE_ENABLE 5078#if EV_IDLE_ENABLE
4604void 5079void
4605ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 5080ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4606{ 5081{
4607 if (expect_false (ev_is_active (w))) 5082 if (ecb_expect_false (ev_is_active (w)))
4608 return; 5083 return;
4609 5084
4610 pri_adjust (EV_A_ (W)w); 5085 pri_adjust (EV_A_ (W)w);
4611 5086
4612 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
… …
4615 int active = ++idlecnt [ABSPRI (w)]; 5090 int active = ++idlecnt [ABSPRI (w)];
4616 5091
4617 ++idleall; 5092 ++idleall;
4618 ev_start (EV_A_ (W)w, active); 5093 ev_start (EV_A_ (W)w, active);
4619 5094
4620 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5095 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4621 idles [ABSPRI (w)][active - 1] = w; 5096 idles [ABSPRI (w)][active - 1] = w;
4622 } 5097 }
4623 5098
4624 EV_FREQUENT_CHECK; 5099 EV_FREQUENT_CHECK;
4625} 5100}
4626 5101
4627void 5102void
4628ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 5103ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4629{ 5104{
4630 clear_pending (EV_A_ (W)w); 5105 clear_pending (EV_A_ (W)w);
4631 if (expect_false (!ev_is_active (w))) 5106 if (ecb_expect_false (!ev_is_active (w)))
4632 return; 5107 return;
4633 5108
4634 EV_FREQUENT_CHECK; 5109 EV_FREQUENT_CHECK;
4635 5110
4636 { 5111 {
… …
4649 5124
4650#if EV_PREPARE_ENABLE 5125#if EV_PREPARE_ENABLE
4651void 5126void
4652ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 5127ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4653{ 5128{
4654 if (expect_false (ev_is_active (w))) 5129 if (ecb_expect_false (ev_is_active (w)))
4655 return; 5130 return;
4656 5131
4657 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4658 5133
4659 ev_start (EV_A_ (W)w, ++preparecnt); 5134 ev_start (EV_A_ (W)w, ++preparecnt);
4660 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5135 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4661 prepares [preparecnt - 1] = w; 5136 prepares [preparecnt - 1] = w;
4662 5137
4663 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4664} 5139}
4665 5140
4666void 5141void
4667ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 5142ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4668{ 5143{
4669 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4670 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4671 return; 5146 return;
4672 5147
4673 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4674 5149
4675 { 5150 {
… …
4687 5162
4688#if EV_CHECK_ENABLE 5163#if EV_CHECK_ENABLE
4689void 5164void
4690ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 5165ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4691{ 5166{
4692 if (expect_false (ev_is_active (w))) 5167 if (ecb_expect_false (ev_is_active (w)))
4693 return; 5168 return;
4694 5169
4695 EV_FREQUENT_CHECK; 5170 EV_FREQUENT_CHECK;
4696 5171
4697 ev_start (EV_A_ (W)w, ++checkcnt); 5172 ev_start (EV_A_ (W)w, ++checkcnt);
4698 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5173 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4699 checks [checkcnt - 1] = w; 5174 checks [checkcnt - 1] = w;
4700 5175
4701 EV_FREQUENT_CHECK; 5176 EV_FREQUENT_CHECK;
4702} 5177}
4703 5178
4704void 5179void
4705ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 5180ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4706{ 5181{
4707 clear_pending (EV_A_ (W)w); 5182 clear_pending (EV_A_ (W)w);
4708 if (expect_false (!ev_is_active (w))) 5183 if (ecb_expect_false (!ev_is_active (w)))
4709 return; 5184 return;
4710 5185
4711 EV_FREQUENT_CHECK; 5186 EV_FREQUENT_CHECK;
4712 5187
4713 { 5188 {
… …
4722 EV_FREQUENT_CHECK; 5197 EV_FREQUENT_CHECK;
4723} 5198}
4724#endif 5199#endif
4725 5200
4726#if EV_EMBED_ENABLE 5201#if EV_EMBED_ENABLE
4727noinline 5202ecb_noinline
4728void 5203void
4729ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 5204ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4730{ 5205{
4731 ev_run (w->other, EVRUN_NOWAIT); 5206 ev_run (w->other, EVRUN_NOWAIT);
4732} 5207}
… …
4756 ev_run (EV_A_ EVRUN_NOWAIT); 5231 ev_run (EV_A_ EVRUN_NOWAIT);
4757 } 5232 }
4758 } 5233 }
4759} 5234}
4760 5235
5236#if EV_FORK_ENABLE
4761static void 5237static void
4762embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5238embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4763{ 5239{
4764 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5240 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4765 5241
… …
4772 ev_run (EV_A_ EVRUN_NOWAIT); 5248 ev_run (EV_A_ EVRUN_NOWAIT);
4773 } 5249 }
4774 5250
4775 ev_embed_start (EV_A_ w); 5251 ev_embed_start (EV_A_ w);
4776} 5252}
5253#endif
4777 5254
4778#if 0 5255#if 0
4779static void 5256static void
4780embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5257embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4781{ 5258{
… …
4784#endif 5261#endif
4785 5262
4786void 5263void
4787ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 5264ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4788{ 5265{
4789 if (expect_false (ev_is_active (w))) 5266 if (ecb_expect_false (ev_is_active (w)))
4790 return; 5267 return;
4791 5268
4792 { 5269 {
4793 EV_P = w->other; 5270 EV_P = w->other;
4794 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5271 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4802 5279
4803 ev_prepare_init (&w->prepare, embed_prepare_cb); 5280 ev_prepare_init (&w->prepare, embed_prepare_cb);
4804 ev_set_priority (&w->prepare, EV_MINPRI); 5281 ev_set_priority (&w->prepare, EV_MINPRI);
4805 ev_prepare_start (EV_A_ &w->prepare); 5282 ev_prepare_start (EV_A_ &w->prepare);
4806 5283
5284#if EV_FORK_ENABLE
4807 ev_fork_init (&w->fork, embed_fork_cb); 5285 ev_fork_init (&w->fork, embed_fork_cb);
4808 ev_fork_start (EV_A_ &w->fork); 5286 ev_fork_start (EV_A_ &w->fork);
5287#endif
4809 5288
4810 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5289 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4811 5290
4812 ev_start (EV_A_ (W)w, 1); 5291 ev_start (EV_A_ (W)w, 1);
4813 5292
… …
4816 5295
4817void 5296void
4818ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 5297ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4819{ 5298{
4820 clear_pending (EV_A_ (W)w); 5299 clear_pending (EV_A_ (W)w);
4821 if (expect_false (!ev_is_active (w))) 5300 if (ecb_expect_false (!ev_is_active (w)))
4822 return; 5301 return;
4823 5302
4824 EV_FREQUENT_CHECK; 5303 EV_FREQUENT_CHECK;
4825 5304
4826 ev_io_stop (EV_A_ &w->io); 5305 ev_io_stop (EV_A_ &w->io);
4827 ev_prepare_stop (EV_A_ &w->prepare); 5306 ev_prepare_stop (EV_A_ &w->prepare);
5307#if EV_FORK_ENABLE
4828 ev_fork_stop (EV_A_ &w->fork); 5308 ev_fork_stop (EV_A_ &w->fork);
5309#endif
4829 5310
4830 ev_stop (EV_A_ (W)w); 5311 ev_stop (EV_A_ (W)w);
4831 5312
4832 EV_FREQUENT_CHECK; 5313 EV_FREQUENT_CHECK;
4833} 5314}
… …
4835 5316
4836#if EV_FORK_ENABLE 5317#if EV_FORK_ENABLE
4837void 5318void
4838ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5319ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4839{ 5320{
4840 if (expect_false (ev_is_active (w))) 5321 if (ecb_expect_false (ev_is_active (w)))
4841 return; 5322 return;
4842 5323
4843 EV_FREQUENT_CHECK; 5324 EV_FREQUENT_CHECK;
4844 5325
4845 ev_start (EV_A_ (W)w, ++forkcnt); 5326 ev_start (EV_A_ (W)w, ++forkcnt);
4846 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5327 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4847 forks [forkcnt - 1] = w; 5328 forks [forkcnt - 1] = w;
4848 5329
4849 EV_FREQUENT_CHECK; 5330 EV_FREQUENT_CHECK;
4850} 5331}
4851 5332
4852void 5333void
4853ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5334ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4854{ 5335{
4855 clear_pending (EV_A_ (W)w); 5336 clear_pending (EV_A_ (W)w);
4856 if (expect_false (!ev_is_active (w))) 5337 if (ecb_expect_false (!ev_is_active (w)))
4857 return; 5338 return;
4858 5339
4859 EV_FREQUENT_CHECK; 5340 EV_FREQUENT_CHECK;
4860 5341
4861 { 5342 {
… …
4873 5354
4874#if EV_CLEANUP_ENABLE 5355#if EV_CLEANUP_ENABLE
4875void 5356void
4876ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5357ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4877{ 5358{
4878 if (expect_false (ev_is_active (w))) 5359 if (ecb_expect_false (ev_is_active (w)))
4879 return; 5360 return;
4880 5361
4881 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4882 5363
4883 ev_start (EV_A_ (W)w, ++cleanupcnt); 5364 ev_start (EV_A_ (W)w, ++cleanupcnt);
4884 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5365 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4885 cleanups [cleanupcnt - 1] = w; 5366 cleanups [cleanupcnt - 1] = w;
4886 5367
4887 /* cleanup watchers should never keep a refcount on the loop */ 5368 /* cleanup watchers should never keep a refcount on the loop */
4888 ev_unref (EV_A); 5369 ev_unref (EV_A);
4889 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
… …
4891 5372
4892void 5373void
4893ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5374ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4894{ 5375{
4895 clear_pending (EV_A_ (W)w); 5376 clear_pending (EV_A_ (W)w);
4896 if (expect_false (!ev_is_active (w))) 5377 if (ecb_expect_false (!ev_is_active (w)))
4897 return; 5378 return;
4898 5379
4899 EV_FREQUENT_CHECK; 5380 EV_FREQUENT_CHECK;
4900 ev_ref (EV_A); 5381 ev_ref (EV_A);
4901 5382
… …
4914 5395
4915#if EV_ASYNC_ENABLE 5396#if EV_ASYNC_ENABLE
4916void 5397void
4917ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5398ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4918{ 5399{
4919 if (expect_false (ev_is_active (w))) 5400 if (ecb_expect_false (ev_is_active (w)))
4920 return; 5401 return;
4921 5402
4922 w->sent = 0; 5403 w->sent = 0;
4923 5404
4924 evpipe_init (EV_A); 5405 evpipe_init (EV_A);
4925 5406
4926 EV_FREQUENT_CHECK; 5407 EV_FREQUENT_CHECK;
4927 5408
4928 ev_start (EV_A_ (W)w, ++asynccnt); 5409 ev_start (EV_A_ (W)w, ++asynccnt);
4929 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5410 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4930 asyncs [asynccnt - 1] = w; 5411 asyncs [asynccnt - 1] = w;
4931 5412
4932 EV_FREQUENT_CHECK; 5413 EV_FREQUENT_CHECK;
4933} 5414}
4934 5415
4935void 5416void
4936ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5417ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4937{ 5418{
4938 clear_pending (EV_A_ (W)w); 5419 clear_pending (EV_A_ (W)w);
4939 if (expect_false (!ev_is_active (w))) 5420 if (ecb_expect_false (!ev_is_active (w)))
4940 return; 5421 return;
4941 5422
4942 EV_FREQUENT_CHECK; 5423 EV_FREQUENT_CHECK;
4943 5424
4944 { 5425 {

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