ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/libev/ev.c
(Generate patch)

Comparing libev/ev.c (file contents):
Revision 1.490 by root, Thu Jun 20 22:44:59 2019 UTC vs.
Revision 1.525 by root, Wed Jan 22 14:09:07 2020 UTC

… …
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
… …
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
320#ifndef EV_USE_LINUXAIO 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
321# define EV_USE_LINUXAIO 0 351# 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
322#endif 361#endif
323 362
324#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
325# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
326# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
… …
348#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
349# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
350# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
351# else 390# else
352# 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
353# endif 400# endif
354#endif 401#endif
355 402
356#if 0 /* debugging */ 403#if 0 /* debugging */
357# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
383/* aix's poll.h seems to cause lots of trouble */ 430/* aix's poll.h seems to cause lots of trouble */
384#ifdef _AIX 431#ifdef _AIX
385/* AIX has a completely broken poll.h header */ 432/* AIX has a completely broken poll.h header */
386# undef EV_USE_POLL 433# undef EV_USE_POLL
387# define EV_USE_POLL 0 434# define EV_USE_POLL 0
388#endif
389
390#if EV_USE_LINUXAIO
391# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
392#endif 435#endif
393 436
394/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */ 437/* on linux, we can use a (slow) syscall to avoid a dependency on pthread, */
395/* which makes programs even slower. might work on other unices, too. */ 438/* which makes programs even slower. might work on other unices, too. */
396#if EV_USE_CLOCK_SYSCALL 439#if EV_USE_CLOCK_SYSCALL
397# include <sys/syscall.h> 440# include <sys/syscall.h>
398# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
399# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
400# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
401# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
402# else 446# else
403# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
404# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
405# endif 449# endif
406#endif 450#endif
… …
420#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
421# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
422# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
423#endif 467#endif
424 468
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
425#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
426/* 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 */
427# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
428# 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
429# endif 506# endif
430#endif 507#endif
431 508
432#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
433# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
438# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
439# endif 516# endif
440#endif 517#endif
441 518
442#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
443/* 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 */
444# include <stdint.h> 521# include <stdint.h>
445# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
446# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
447# endif 524# endif
448# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
454# endif 531# endif
455EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
456#endif 533#endif
457 534
458#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
459/* 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 */
460# include <stdint.h> 537# include <stdint.h>
461# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
462# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
463# endif 540# endif
464# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
466# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
467# else 544# else
468# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
469# endif 546# endif
470# endif 547# endif
471EV_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);
472 549
473struct signalfd_siginfo 550struct signalfd_siginfo
474{ 551{
475 uint32_t ssi_signo; 552 uint32_t ssi_signo;
476 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
477}; 554};
478#endif 555#endif
479 556
480/**/ 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/*****************************************************************************/
481 568
482#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
483# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
484#else 571#else
485# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
490 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
491 */ 578 */
492#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
493/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
494 581
495#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) */
496#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 */
497 585
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
498#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)
499#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
500 603
501/* 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 */
502/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
503/* 606/*
504 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
… …
542 645
543#ifndef ECB_H 646#ifndef ECB_H
544#define ECB_H 647#define ECB_H
545 648
546/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
547#define ECB_VERSION 0x00010005 650#define ECB_VERSION 0x00010008
651
652#include <string.h> /* for memcpy */
548 653
549#ifdef _WIN32 654#ifdef _WIN32
550 typedef signed char int8_t; 655 typedef signed char int8_t;
551 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;
552 typedef signed short int16_t; 659 typedef signed short int16_t;
553 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;
554 typedef signed int int32_t; 663 typedef signed int int32_t;
555 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;
556 #if __GNUC__ 667 #if __GNUC__
557 typedef signed long long int64_t; 668 typedef signed long long int64_t;
558 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
559 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
560 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
561 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
562 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
563 #ifdef _WIN64 676 #ifdef _WIN64
564 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
565 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
566 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
567 #else 680 #else
… …
579#endif 692#endif
580 693
581#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
582#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
583 696
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
584/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
585#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
586 #if _ILP32 707 #if _ILP32
587 #define ECB_AMD64_X32 1 708 #define ECB_AMD64_X32 1
588 #else 709 #else
… …
666 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 787 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
667#endif 788#endif
668 789
669#ifndef ECB_MEMORY_FENCE 790#ifndef ECB_MEMORY_FENCE
670 #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")
671 #if __i386 || __i386__ 793 #if __i386 || __i386__
672 #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")
673 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 795 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
674 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory") 796 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
675 #elif ECB_GCC_AMD64 797 #elif ECB_GCC_AMD64
… …
725 #if ECB_GCC_VERSION(4,7) 847 #if ECB_GCC_VERSION(4,7)
726 /* see comment below (stdatomic.h) about the C11 memory model. */ 848 /* see comment below (stdatomic.h) about the C11 memory model. */
727 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 849 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
728 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 850 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
729 #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)
730 853
731 #elif ECB_CLANG_EXTENSION(c_atomic) 854 #elif ECB_CLANG_EXTENSION(c_atomic)
732 /* see comment below (stdatomic.h) about the C11 memory model. */ 855 /* see comment below (stdatomic.h) about the C11 memory model. */
733 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 856 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
734 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 857 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
735 #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)
736 860
737 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 861 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
738 #define ECB_MEMORY_FENCE __sync_synchronize () 862 #define ECB_MEMORY_FENCE __sync_synchronize ()
739 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 863 #elif _MSC_VER >= 1500 /* VC++ 2008 */
740 /* 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... */
… …
750 #elif defined _WIN32 874 #elif defined _WIN32
751 #include <WinNT.h> 875 #include <WinNT.h>
752 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 876 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
753 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 877 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
754 #include <mbarrier.h> 878 #include <mbarrier.h>
755 #define ECB_MEMORY_FENCE __machine_rw_barrier () 879 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
756 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 880 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
757 #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 ()
758 #elif __xlC__ 883 #elif __xlC__
759 #define ECB_MEMORY_FENCE __sync () 884 #define ECB_MEMORY_FENCE __sync ()
760 #endif 885 #endif
761#endif 886#endif
762 887
763#ifndef ECB_MEMORY_FENCE 888#ifndef ECB_MEMORY_FENCE
764 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 889 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
765 /* 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, */
766 /* not just C11 atomics and atomic accesses */ 891 /* not just C11 atomics and atomic accesses */
767 #include <stdatomic.h> 892 #include <stdatomic.h>
768 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
769 /* any fence other than seq_cst, which isn't very efficient for us. */
770 /* Why that is, we don't know - either the C11 memory model is quite useless */
771 /* for most usages, or gcc and clang have a bug */
772 /* I *currently* lean towards the latter, and inefficiently implement */
773 /* all three of ecb's fences as a seq_cst fence */
774 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
775 /* for all __atomic_thread_fence's except seq_cst */
776 #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)
777 #endif 896 #endif
778#endif 897#endif
779 898
780#ifndef ECB_MEMORY_FENCE 899#ifndef ECB_MEMORY_FENCE
781 #if !ECB_AVOID_PTHREADS 900 #if !ECB_AVOID_PTHREADS
… …
799 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 918 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
800#endif 919#endif
801 920
802#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 921#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
803 #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 */
804#endif 927#endif
805 928
806/*****************************************************************************/ 929/*****************************************************************************/
807 930
808#if ECB_CPP 931#if ECB_CPP
… …
1092ecb_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); }
1093ecb_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); }
1094ecb_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); }
1095ecb_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); }
1096 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
1097#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))
1098 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1099 #define ecb_bswap16(x) __builtin_bswap16 (x) 1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1100 #else 1261 #else
1101 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1172ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1173ecb_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; }
1174ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1175ecb_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; }
1176 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
1177#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1178 #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))
1179#else 1412#else
1180 #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)))
1181#endif 1414#endif
… …
1204 return N; 1437 return N;
1205 } 1438 }
1206#else 1439#else
1207 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1208#endif 1441#endif
1442
1443/*****************************************************************************/
1209 1444
1210ecb_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);
1211ecb_function_ ecb_const uint32_t 1446ecb_function_ ecb_const uint32_t
1212ecb_binary16_to_binary32 (uint32_t x) 1447ecb_binary16_to_binary32 (uint32_t x)
1213{ 1448{
… …
1322 || defined __sh__ \ 1557 || defined __sh__ \
1323 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1558 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1324 || (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__)) \
1325 || defined __aarch64__ 1560 || defined __aarch64__
1326 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1327 #include <string.h> /* for memcpy */
1328#else 1562#else
1329 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1330#endif 1564#endif
1331 1565
1332#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1517/* ECB.H END */ 1751/* ECB.H END */
1518 1752
1519#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1753#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1520/* 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
1521 * 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
1522 * 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
1523 * libev, in which cases the memory fences become nops. 1757 * libev, in which cases the memory fences become nops.
1524 * alternatively, you can remove this #error and link against libpthread, 1758 * alternatively, you can remove this #error and link against libpthread,
1525 * which will then provide the memory fences. 1759 * which will then provide the memory fences.
1526 */ 1760 */
1527# error "memory fences not defined for your architecture, please report" 1761# error "memory fences not defined for your architecture, please report"
… …
1531# define ECB_MEMORY_FENCE do { } while (0) 1765# define ECB_MEMORY_FENCE do { } while (0)
1532# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1766# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1533# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1767# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1534#endif 1768#endif
1535 1769
1536#define expect_false(cond) ecb_expect_false (cond)
1537#define expect_true(cond) ecb_expect_true (cond)
1538#define noinline ecb_noinline
1539
1540#define inline_size ecb_inline 1770#define inline_size ecb_inline
1541 1771
1542#if EV_FEATURE_CODE 1772#if EV_FEATURE_CODE
1543# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1544#else 1774#else
1545# define inline_speed noinline static 1775# define inline_speed ecb_noinline static
1546#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/*****************************************************************************/
1547 1843
1548#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1549 1845
1550#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1551# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
… …
1586# include "ev_win32.c" 1882# include "ev_win32.c"
1587#endif 1883#endif
1588 1884
1589/*****************************************************************************/ 1885/*****************************************************************************/
1590 1886
1887#if EV_USE_LINUXAIO
1888# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1889#endif
1890
1591/* define a suitable floor function (only used by periodics atm) */ 1891/* define a suitable floor function (only used by periodics atm) */
1592 1892
1593#if EV_USE_FLOOR 1893#if EV_USE_FLOOR
1594# include <math.h> 1894# include <math.h>
1595# define ev_floor(v) floor (v) 1895# define ev_floor(v) floor (v)
1596#else 1896#else
1597 1897
1598#include <float.h> 1898#include <float.h>
1599 1899
1600/* a floor() replacement function, should be independent of ev_tstamp type */ 1900/* a floor() replacement function, should be independent of ev_tstamp type */
1601noinline 1901ecb_noinline
1602static ev_tstamp 1902static ev_tstamp
1603ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1604{ 1904{
1605 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1606#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1607 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1608#else 1908#else
1609 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1610#endif 1910#endif
1611 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
1612 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1613 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1614 { 1922 {
1615 ev_tstamp f; 1923 ev_tstamp f;
1616 1924
1617 if (v == v - 1.) 1925 if (v == v - 1.)
1618 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1619 1927
1620 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1621 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1622 } 1930 }
1623 1931
1624 /* special treatment for negative args? */
1625 if (expect_false (v < 0.))
1626 {
1627 ev_tstamp f = -ev_floor (-v);
1628
1629 return f - (f == v ? 0 : 1);
1630 }
1631
1632 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1633 return (unsigned long)v; 1933 return (unsigned long)v;
1634} 1934}
1635 1935
1636#endif 1936#endif
… …
1639 1939
1640#ifdef __linux 1940#ifdef __linux
1641# include <sys/utsname.h> 1941# include <sys/utsname.h>
1642#endif 1942#endif
1643 1943
1644noinline ecb_cold 1944ecb_noinline ecb_cold
1645static unsigned int 1945static unsigned int
1646ev_linux_version (void) 1946ev_linux_version (void)
1647{ 1947{
1648#ifdef __linux 1948#ifdef __linux
1649 unsigned int v = 0; 1949 unsigned int v = 0;
… …
1679} 1979}
1680 1980
1681/*****************************************************************************/ 1981/*****************************************************************************/
1682 1982
1683#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1684noinline ecb_cold 1984ecb_noinline ecb_cold
1685static void 1985static void
1686ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1687{ 1987{
1688 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1689} 1989}
… …
1696ev_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
1697{ 1997{
1698 syserr_cb = cb; 1998 syserr_cb = cb;
1699} 1999}
1700 2000
1701noinline ecb_cold 2001ecb_noinline ecb_cold
1702static void 2002static void
1703ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1704{ 2004{
1705 if (!msg) 2005 if (!msg)
1706 msg = "(libev) system error"; 2006 msg = "(libev) system error";
… …
1778{ 2078{
1779 WL head; 2079 WL head;
1780 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1781 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) */
1782 unsigned char emask; /* some backends store the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1783 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1784#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1785 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1786#endif 2086#endif
1787#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1788 SOCKET handle; 2088 SOCKET handle;
… …
1842 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1843 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 */
1844 2144
1845#else 2145#else
1846 2146
1847 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 */
1848 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1849 #include "ev_vars.h" 2149 #include "ev_vars.h"
1850 #undef VAR 2150 #undef VAR
1851 2151
1852 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1853 2153
1854#endif 2154#endif
1855 2155
1856#if EV_FEATURE_API 2156#if EV_FEATURE_API
1857# 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)
1858# 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)
1859# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1860#else 2160#else
1861# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1862# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1863# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1870#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1871ev_tstamp 2171ev_tstamp
1872ev_time (void) EV_NOEXCEPT 2172ev_time (void) EV_NOEXCEPT
1873{ 2173{
1874#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1875 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1876 { 2176 {
1877 struct timespec ts; 2177 struct timespec ts;
1878 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1879 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1880 } 2180 }
1881#endif 2181#endif
1882 2182
2183 {
1883 struct timeval tv; 2184 struct timeval tv;
1884 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1885 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1886} 2188}
1887#endif 2189#endif
1888 2190
1889inline_size ev_tstamp 2191inline_size ev_tstamp
1890get_clock (void) 2192get_clock (void)
1891{ 2193{
1892#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1893 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1894 { 2196 {
1895 struct timespec ts; 2197 struct timespec ts;
1896 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1897 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1898 } 2200 }
1899#endif 2201#endif
1900 2202
1901 return ev_time (); 2203 return ev_time ();
1902} 2204}
… …
1910#endif 2212#endif
1911 2213
1912void 2214void
1913ev_sleep (ev_tstamp delay) EV_NOEXCEPT 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1914{ 2216{
1915 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1916 { 2218 {
1917#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1918 struct timespec ts; 2220 struct timespec ts;
1919 2221
1920 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1921 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1922#elif defined _WIN32 2224#elif defined _WIN32
1923 /* maybe this should round up, as ms is very low resolution */ 2225 /* maybe this should round up, as ms is very low resolution */
1924 /* compared to select (µs) or nanosleep (ns) */ 2226 /* compared to select (µs) or nanosleep (ns) */
1925 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1926#else 2228#else
1927 struct timeval tv; 2229 struct timeval tv;
1928 2230
1929 /* 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 */
1930 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1960 } 2262 }
1961 2263
1962 return ncur; 2264 return ncur;
1963} 2265}
1964 2266
1965noinline ecb_cold 2267ecb_noinline ecb_cold
1966static void * 2268static void *
1967array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1968{ 2270{
1969 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1970 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1971} 2273}
1972 2274
1973#define array_needsize_noinit(base,count) 2275#define array_needsize_noinit(base,offset,count)
1974 2276
1975#define array_needsize_zerofill(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1976 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1977 2279
1978#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1979 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1980 { \ 2282 { \
1981 ecb_unused int ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1982 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1983 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1984 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1985 } 2287 }
1986 2288
1987#if 0 2289#if 0
1988#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1989 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1998 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
1999 2301
2000/*****************************************************************************/ 2302/*****************************************************************************/
2001 2303
2002/* dummy callback for pending events */ 2304/* dummy callback for pending events */
2003noinline 2305ecb_noinline
2004static void 2306static void
2005pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
2006{ 2308{
2007} 2309}
2008 2310
2009noinline 2311ecb_noinline
2010void 2312void
2011ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
2012{ 2314{
2013 W w_ = (W)w; 2315 W w_ = (W)w;
2014 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
2015 2317
2016 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
2017 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
2018 else 2320 else
2019 { 2321 {
2020 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
2021 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
… …
2072inline_speed void 2374inline_speed void
2073fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
2074{ 2376{
2075 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
2076 2378
2077 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
2078 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
2079} 2381}
2080 2382
2081void 2383void
2082ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
… …
2090inline_size void 2392inline_size void
2091fd_reify (EV_P) 2393fd_reify (EV_P)
2092{ 2394{
2093 int i; 2395 int i;
2094 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
2095#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2096 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2097 { 2411 {
2098 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2099 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2100 2414
2101 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2115 } 2429 }
2116 } 2430 }
2117 } 2431 }
2118#endif 2432#endif
2119 2433
2120 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2121 { 2435 {
2122 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2123 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2124 ev_io *w; 2438 ev_io *w;
2125 2439
2126 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
2127 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
2128 2442
2129 anfd->reify = 0; 2443 anfd->reify = 0;
2130 2444
2131 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2132 { 2446 {
2133 anfd->events = 0; 2447 anfd->events = 0;
2134 2448
2135 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)
2136 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
2141 2455
2142 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2143 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2144 } 2458 }
2145 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
2146 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2147} 2468}
2148 2469
2149/* something about the given fd changed */ 2470/* something about the given fd changed */
2150inline_size 2471inline_size
2151void 2472void
2152fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
2153{ 2474{
2154 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
2155 anfds [fd].reify |= flags; 2476 anfds [fd].reify |= flags;
2156 2477
2157 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
2158 { 2479 {
2159 ++fdchangecnt; 2480 ++fdchangecnt;
2160 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2161 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
2162 } 2483 }
… …
2185 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
2186#endif 2507#endif
2187} 2508}
2188 2509
2189/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
2190noinline ecb_cold 2511ecb_noinline ecb_cold
2191static void 2512static void
2192fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
2193{ 2514{
2194 int fd; 2515 int fd;
2195 2516
… …
2198 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
2199 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
2200} 2521}
2201 2522
2202/* 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 */
2203noinline ecb_cold 2524ecb_noinline ecb_cold
2204static void 2525static void
2205fd_enomem (EV_P) 2526fd_enomem (EV_P)
2206{ 2527{
2207 int fd; 2528 int fd;
2208 2529
… …
2213 break; 2534 break;
2214 } 2535 }
2215} 2536}
2216 2537
2217/* 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 */
2218noinline 2539ecb_noinline
2219static void 2540static void
2220fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
2221{ 2542{
2222 int fd; 2543 int fd;
2223 2544
… …
2277 ev_tstamp minat; 2598 ev_tstamp minat;
2278 ANHE *minpos; 2599 ANHE *minpos;
2279 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2280 2601
2281 /* find minimum child */ 2602 /* find minimum child */
2282 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2283 { 2604 {
2284 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2285 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));
2286 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));
2287 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));
2288 } 2609 }
2289 else if (pos < E) 2610 else if (pos < E)
2290 { 2611 {
2291 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2292 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));
2293 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));
2294 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));
2295 } 2616 }
2296 else 2617 else
2297 break; 2618 break;
2298 2619
2299 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2307 2628
2308 heap [k] = he; 2629 heap [k] = he;
2309 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2310} 2631}
2311 2632
2312#else /* 4HEAP */ 2633#else /* not 4HEAP */
2313 2634
2314#define HEAP0 1 2635#define HEAP0 1
2315#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2316#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2317 2638
… …
2389 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2390} 2711}
2391 2712
2392/*****************************************************************************/ 2713/*****************************************************************************/
2393 2714
2394/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2395typedef struct 2716typedef struct
2396{ 2717{
2397 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2398#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2399 EV_P; 2720 EV_P;
… …
2405 2726
2406/*****************************************************************************/ 2727/*****************************************************************************/
2407 2728
2408#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2409 2730
2410noinline ecb_cold 2731ecb_noinline ecb_cold
2411static void 2732static void
2412evpipe_init (EV_P) 2733evpipe_init (EV_P)
2413{ 2734{
2414 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2415 { 2736 {
… …
2456inline_speed void 2777inline_speed void
2457evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2458{ 2779{
2459 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 */
2460 2781
2461 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2462 return; 2783 return;
2463 2784
2464 *flag = 1; 2785 *flag = 1;
2465 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 */
2466 2787
… …
2543 sig_pending = 0; 2864 sig_pending = 0;
2544 2865
2545 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2546 2867
2547 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2548 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2549 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2550 } 2871 }
2551#endif 2872#endif
2552 2873
2553#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2594#endif 2915#endif
2595 2916
2596 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2597} 2918}
2598 2919
2599noinline 2920ecb_noinline
2600void 2921void
2601ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2602{ 2923{
2603 WL w; 2924 WL w;
2604 2925
2605 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2606 return; 2927 return;
2607 2928
2608 --signum; 2929 --signum;
2609 2930
2610#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2611 /* 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 */
2612 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2613 2934
2614 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2615 return; 2936 return;
2616#endif 2937#endif
2617 2938
2618 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2619 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2703 3024
2704#endif 3025#endif
2705 3026
2706/*****************************************************************************/ 3027/*****************************************************************************/
2707 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
2708#if EV_USE_IOCP 3080#if EV_USE_IOCP
2709# include "ev_iocp.c" 3081# include "ev_iocp.c"
2710#endif 3082#endif
2711#if EV_USE_PORT 3083#if EV_USE_PORT
2712# include "ev_port.c" 3084# include "ev_port.c"
2713#endif 3085#endif
2714#if EV_USE_KQUEUE 3086#if EV_USE_KQUEUE
2715# include "ev_kqueue.c" 3087# include "ev_kqueue.c"
2716#endif 3088#endif
3089#if EV_USE_EPOLL
3090# include "ev_epoll.c"
3091#endif
2717#if EV_USE_LINUXAIO 3092#if EV_USE_LINUXAIO
2718# include "ev_linuxaio.c" 3093# include "ev_linuxaio.c"
2719#endif 3094#endif
2720#if EV_USE_EPOLL 3095#if EV_USE_IOURING
2721# include "ev_epoll.c" 3096# include "ev_iouring.c"
2722#endif 3097#endif
2723#if EV_USE_POLL 3098#if EV_USE_POLL
2724# include "ev_poll.c" 3099# include "ev_poll.c"
2725#endif 3100#endif
2726#if EV_USE_SELECT 3101#if EV_USE_SELECT
… …
2755unsigned int 3130unsigned int
2756ev_supported_backends (void) EV_NOEXCEPT 3131ev_supported_backends (void) EV_NOEXCEPT
2757{ 3132{
2758 unsigned int flags = 0; 3133 unsigned int flags = 0;
2759 3134
2760 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2761 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE; 3136 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2762 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3137 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2763 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO; 3138 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2764 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3139 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2765 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT; 3140 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2766 3141 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3142
2767 return flags; 3143 return flags;
2768} 3144}
2769 3145
2770ecb_cold 3146ecb_cold
2771unsigned int 3147unsigned int
… …
2785#endif 3161#endif
2786#ifdef __FreeBSD__ 3162#ifdef __FreeBSD__
2787 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) */
2788#endif 3164#endif
2789 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
2790 return flags; 3175 return flags;
2791} 3176}
2792 3177
2793ecb_cold 3178ecb_cold
2794unsigned int 3179unsigned int
2795ev_embeddable_backends (void) EV_NOEXCEPT 3180ev_embeddable_backends (void) EV_NOEXCEPT
2796{ 3181{
2797 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3182 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2798 3183
2799 /* 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 */
2800 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 */
2801 flags &= ~EVBACKEND_EPOLL; 3186 flags &= ~EVBACKEND_EPOLL;
2802 3187
3188 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3189
2803 return flags; 3190 return flags;
2804} 3191}
2805 3192
2806unsigned int 3193unsigned int
2807ev_backend (EV_P) EV_NOEXCEPT 3194ev_backend (EV_P) EV_NOEXCEPT
… …
2859 acquire_cb = acquire; 3246 acquire_cb = acquire;
2860} 3247}
2861#endif 3248#endif
2862 3249
2863/* initialise a loop structure, must be zero-initialised */ 3250/* initialise a loop structure, must be zero-initialised */
2864noinline ecb_cold 3251ecb_noinline ecb_cold
2865static void 3252static void
2866loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT 3253loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2867{ 3254{
2868 if (!backend) 3255 if (!backend)
2869 { 3256 {
… …
2924 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3311 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2925#endif 3312#endif
2926#if EV_USE_SIGNALFD 3313#if EV_USE_SIGNALFD
2927 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3314 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2928#endif 3315#endif
3316#if EV_USE_TIMERFD
3317 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3318#endif
2929 3319
2930 if (!(flags & EVBACKEND_MASK)) 3320 if (!(flags & EVBACKEND_MASK))
2931 flags |= ev_recommended_backends (); 3321 flags |= ev_recommended_backends ();
2932 3322
2933#if EV_USE_IOCP 3323#if EV_USE_IOCP
… …
2936#if EV_USE_PORT 3326#if EV_USE_PORT
2937 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3327 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2938#endif 3328#endif
2939#if EV_USE_KQUEUE 3329#if EV_USE_KQUEUE
2940 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);
2941#endif 3334#endif
2942#if EV_USE_LINUXAIO 3335#if EV_USE_LINUXAIO
2943 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags); 3336 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2944#endif 3337#endif
2945#if EV_USE_EPOLL 3338#if EV_USE_EPOLL
… …
2974 return; 3367 return;
2975#endif 3368#endif
2976 3369
2977#if EV_CLEANUP_ENABLE 3370#if EV_CLEANUP_ENABLE
2978 /* queue cleanup watchers (and execute them) */ 3371 /* queue cleanup watchers (and execute them) */
2979 if (expect_false (cleanupcnt)) 3372 if (ecb_expect_false (cleanupcnt))
2980 { 3373 {
2981 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3374 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2982 EV_INVOKE_PENDING; 3375 EV_INVOKE_PENDING;
2983 } 3376 }
2984#endif 3377#endif
… …
3003#if EV_USE_SIGNALFD 3396#if EV_USE_SIGNALFD
3004 if (ev_is_active (&sigfd_w)) 3397 if (ev_is_active (&sigfd_w))
3005 close (sigfd); 3398 close (sigfd);
3006#endif 3399#endif
3007 3400
3401#if EV_USE_TIMERFD
3402 if (ev_is_active (&timerfd_w))
3403 close (timerfd);
3404#endif
3405
3008#if EV_USE_INOTIFY 3406#if EV_USE_INOTIFY
3009 if (fs_fd >= 0) 3407 if (fs_fd >= 0)
3010 close (fs_fd); 3408 close (fs_fd);
3011#endif 3409#endif
3012 3410
… …
3019#if EV_USE_PORT 3417#if EV_USE_PORT
3020 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3418 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
3021#endif 3419#endif
3022#if EV_USE_KQUEUE 3420#if EV_USE_KQUEUE
3023 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);
3024#endif 3425#endif
3025#if EV_USE_LINUXAIO 3426#if EV_USE_LINUXAIO
3026 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A); 3427 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3027#endif 3428#endif
3028#if EV_USE_EPOLL 3429#if EV_USE_EPOLL
… …
3087 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3488 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3088#endif 3489#endif
3089#if EV_USE_KQUEUE 3490#if EV_USE_KQUEUE
3090 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A); 3491 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3091#endif 3492#endif
3493#if EV_USE_IOURING
3494 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3495#endif
3092#if EV_USE_LINUXAIO 3496#if EV_USE_LINUXAIO
3093 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A); 3497 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3094#endif 3498#endif
3095#if EV_USE_EPOLL 3499#if EV_USE_EPOLL
3096 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3500 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3097#endif 3501#endif
3098#if EV_USE_INOTIFY 3502#if EV_USE_INOTIFY
3099 infy_fork (EV_A); 3503 infy_fork (EV_A);
3100#endif 3504#endif
3101 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
3102#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3527 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3103 if (ev_is_active (&pipe_w) && postfork != 2) 3528 if (ev_is_active (&pipe_w))
3104 { 3529 {
3105 /* 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 */
3106 3531
3107 ev_ref (EV_A); 3532 ev_ref (EV_A);
3108 ev_io_stop (EV_A_ &pipe_w); 3533 ev_io_stop (EV_A_ &pipe_w);
3109 3534
3110 if (evpipe [0] >= 0) 3535 if (evpipe [0] >= 0)
3111 EV_WIN32_CLOSE_FD (evpipe [0]); 3536 EV_WIN32_CLOSE_FD (evpipe [0]);
3112 3537
3113 evpipe_init (EV_A); 3538 evpipe_init (EV_A);
3114 /* iterate over everything, in case we missed something before */ 3539 /* iterate over everything, in case we missed something before */
3115 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3540 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3541 }
3542 #endif
3116 } 3543 }
3117#endif
3118 3544
3119 postfork = 0; 3545 postfork = 0;
3120} 3546}
3121 3547
3122#if EV_MULTIPLICITY 3548#if EV_MULTIPLICITY
… …
3138} 3564}
3139 3565
3140#endif /* multiplicity */ 3566#endif /* multiplicity */
3141 3567
3142#if EV_VERIFY 3568#if EV_VERIFY
3143noinline ecb_cold 3569ecb_noinline ecb_cold
3144static void 3570static void
3145verify_watcher (EV_P_ W w) 3571verify_watcher (EV_P_ W w)
3146{ 3572{
3147 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));
3148 3574
3149 if (w->pending) 3575 if (w->pending)
3150 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));
3151} 3577}
3152 3578
3153noinline ecb_cold 3579ecb_noinline ecb_cold
3154static void 3580static void
3155verify_heap (EV_P_ ANHE *heap, int N) 3581verify_heap (EV_P_ ANHE *heap, int N)
3156{ 3582{
3157 int i; 3583 int i;
3158 3584
… …
3164 3590
3165 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3591 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3166 } 3592 }
3167} 3593}
3168 3594
3169noinline ecb_cold 3595ecb_noinline ecb_cold
3170static void 3596static void
3171array_verify (EV_P_ W *ws, int cnt) 3597array_verify (EV_P_ W *ws, int cnt)
3172{ 3598{
3173 while (cnt--) 3599 while (cnt--)
3174 { 3600 {
… …
3323 count += pendingcnt [pri]; 3749 count += pendingcnt [pri];
3324 3750
3325 return count; 3751 return count;
3326} 3752}
3327 3753
3328noinline 3754ecb_noinline
3329void 3755void
3330ev_invoke_pending (EV_P) 3756ev_invoke_pending (EV_P)
3331{ 3757{
3332 pendingpri = NUMPRI; 3758 pendingpri = NUMPRI;
3333 3759
… …
3352/* make idle watchers pending. this handles the "call-idle */ 3778/* make idle watchers pending. this handles the "call-idle */
3353/* only when higher priorities are idle" logic */ 3779/* only when higher priorities are idle" logic */
3354inline_size void 3780inline_size void
3355idle_reify (EV_P) 3781idle_reify (EV_P)
3356{ 3782{
3357 if (expect_false (idleall)) 3783 if (ecb_expect_false (idleall))
3358 { 3784 {
3359 int pri; 3785 int pri;
3360 3786
3361 for (pri = NUMPRI; pri--; ) 3787 for (pri = NUMPRI; pri--; )
3362 { 3788 {
… …
3392 { 3818 {
3393 ev_at (w) += w->repeat; 3819 ev_at (w) += w->repeat;
3394 if (ev_at (w) < mn_now) 3820 if (ev_at (w) < mn_now)
3395 ev_at (w) = mn_now; 3821 ev_at (w) = mn_now;
3396 3822
3397 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.)));
3398 3824
3399 ANHE_at_cache (timers [HEAP0]); 3825 ANHE_at_cache (timers [HEAP0]);
3400 downheap (timers, timercnt, HEAP0); 3826 downheap (timers, timercnt, HEAP0);
3401 } 3827 }
3402 else 3828 else
… …
3411 } 3837 }
3412} 3838}
3413 3839
3414#if EV_PERIODIC_ENABLE 3840#if EV_PERIODIC_ENABLE
3415 3841
3416noinline 3842ecb_noinline
3417static void 3843static void
3418periodic_recalc (EV_P_ ev_periodic *w) 3844periodic_recalc (EV_P_ ev_periodic *w)
3419{ 3845{
3420 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3421 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);
… …
3424 while (at <= ev_rt_now) 3850 while (at <= ev_rt_now)
3425 { 3851 {
3426 ev_tstamp nat = at + w->interval; 3852 ev_tstamp nat = at + w->interval;
3427 3853
3428 /* when resolution fails us, we use ev_rt_now */ 3854 /* when resolution fails us, we use ev_rt_now */
3429 if (expect_false (nat == at)) 3855 if (ecb_expect_false (nat == at))
3430 { 3856 {
3431 at = ev_rt_now; 3857 at = ev_rt_now;
3432 break; 3858 break;
3433 } 3859 }
3434 3860
… …
3480 } 3906 }
3481} 3907}
3482 3908
3483/* simply recalculate all periodics */ 3909/* simply recalculate all periodics */
3484/* 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? */
3485noinline ecb_cold 3911ecb_noinline ecb_cold
3486static void 3912static void
3487periodics_reschedule (EV_P) 3913periodics_reschedule (EV_P)
3488{ 3914{
3489 int i; 3915 int i;
3490 3916
… …
3504 reheap (periodics, periodiccnt); 3930 reheap (periodics, periodiccnt);
3505} 3931}
3506#endif 3932#endif
3507 3933
3508/* adjust all timers by a given offset */ 3934/* adjust all timers by a given offset */
3509noinline ecb_cold 3935ecb_noinline ecb_cold
3510static void 3936static void
3511timers_reschedule (EV_P_ ev_tstamp adjust) 3937timers_reschedule (EV_P_ ev_tstamp adjust)
3512{ 3938{
3513 int i; 3939 int i;
3514 3940
… …
3524/* also detect if there was a timejump, and act accordingly */ 3950/* also detect if there was a timejump, and act accordingly */
3525inline_speed void 3951inline_speed void
3526time_update (EV_P_ ev_tstamp max_block) 3952time_update (EV_P_ ev_tstamp max_block)
3527{ 3953{
3528#if EV_USE_MONOTONIC 3954#if EV_USE_MONOTONIC
3529 if (expect_true (have_monotonic)) 3955 if (ecb_expect_true (have_monotonic))
3530 { 3956 {
3531 int i; 3957 int i;
3532 ev_tstamp odiff = rtmn_diff; 3958 ev_tstamp odiff = rtmn_diff;
3533 3959
3534 mn_now = get_clock (); 3960 mn_now = get_clock ();
3535 3961
3536 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3962 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3537 /* interpolate in the meantime */ 3963 /* interpolate in the meantime */
3538 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)))
3539 { 3965 {
3540 ev_rt_now = rtmn_diff + mn_now; 3966 ev_rt_now = rtmn_diff + mn_now;
3541 return; 3967 return;
3542 } 3968 }
3543 3969
… …
3557 ev_tstamp diff; 3983 ev_tstamp diff;
3558 rtmn_diff = ev_rt_now - mn_now; 3984 rtmn_diff = ev_rt_now - mn_now;
3559 3985
3560 diff = odiff - rtmn_diff; 3986 diff = odiff - rtmn_diff;
3561 3987
3562 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)))
3563 return; /* all is well */ 3989 return; /* all is well */
3564 3990
3565 ev_rt_now = ev_time (); 3991 ev_rt_now = ev_time ();
3566 mn_now = get_clock (); 3992 mn_now = get_clock ();
3567 now_floor = mn_now; 3993 now_floor = mn_now;
… …
3576 else 4002 else
3577#endif 4003#endif
3578 { 4004 {
3579 ev_rt_now = ev_time (); 4005 ev_rt_now = ev_time ();
3580 4006
3581 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)))
3582 { 4008 {
3583 /* 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 */
3584 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4010 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3585#if EV_PERIODIC_ENABLE 4011#if EV_PERIODIC_ENABLE
3586 periodics_reschedule (EV_A); 4012 periodics_reschedule (EV_A);
… …
3609#if EV_VERIFY >= 2 4035#if EV_VERIFY >= 2
3610 ev_verify (EV_A); 4036 ev_verify (EV_A);
3611#endif 4037#endif
3612 4038
3613#ifndef _WIN32 4039#ifndef _WIN32
3614 if (expect_false (curpid)) /* penalise the forking check even more */ 4040 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3615 if (expect_false (getpid () != curpid)) 4041 if (ecb_expect_false (getpid () != curpid))
3616 { 4042 {
3617 curpid = getpid (); 4043 curpid = getpid ();
3618 postfork = 1; 4044 postfork = 1;
3619 } 4045 }
3620#endif 4046#endif
3621 4047
3622#if EV_FORK_ENABLE 4048#if EV_FORK_ENABLE
3623 /* we might have forked, so queue fork handlers */ 4049 /* we might have forked, so queue fork handlers */
3624 if (expect_false (postfork)) 4050 if (ecb_expect_false (postfork))
3625 if (forkcnt) 4051 if (forkcnt)
3626 { 4052 {
3627 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4053 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3628 EV_INVOKE_PENDING; 4054 EV_INVOKE_PENDING;
3629 } 4055 }
3630#endif 4056#endif
3631 4057
3632#if EV_PREPARE_ENABLE 4058#if EV_PREPARE_ENABLE
3633 /* queue prepare watchers (and execute them) */ 4059 /* queue prepare watchers (and execute them) */
3634 if (expect_false (preparecnt)) 4060 if (ecb_expect_false (preparecnt))
3635 { 4061 {
3636 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3637 EV_INVOKE_PENDING; 4063 EV_INVOKE_PENDING;
3638 } 4064 }
3639#endif 4065#endif
3640 4066
3641 if (expect_false (loop_done)) 4067 if (ecb_expect_false (loop_done))
3642 break; 4068 break;
3643 4069
3644 /* we might have forked, so reify kernel state if necessary */ 4070 /* we might have forked, so reify kernel state if necessary */
3645 if (expect_false (postfork)) 4071 if (ecb_expect_false (postfork))
3646 loop_fork (EV_A); 4072 loop_fork (EV_A);
3647 4073
3648 /* update fd-related kernel structures */ 4074 /* update fd-related kernel structures */
3649 fd_reify (EV_A); 4075 fd_reify (EV_A);
3650 4076
… …
3655 4081
3656 /* remember old timestamp for io_blocktime calculation */ 4082 /* remember old timestamp for io_blocktime calculation */
3657 ev_tstamp prev_mn_now = mn_now; 4083 ev_tstamp prev_mn_now = mn_now;
3658 4084
3659 /* update time to cancel out callback processing overhead */ 4085 /* update time to cancel out callback processing overhead */
3660 time_update (EV_A_ 1e100); 4086 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3661 4087
3662 /* from now on, we want a pipe-wake-up */ 4088 /* from now on, we want a pipe-wake-up */
3663 pipe_write_wanted = 1; 4089 pipe_write_wanted = 1;
3664 4090
3665 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 */
3666 4092
3667 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4093 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3668 { 4094 {
3669 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
3670 4108
3671 if (timercnt) 4109 if (timercnt)
3672 { 4110 {
3673 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4111 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3674 if (waittime > to) waittime = to; 4112 if (waittime > to) waittime = to;
… …
3681 if (waittime > to) waittime = to; 4119 if (waittime > to) waittime = to;
3682 } 4120 }
3683#endif 4121#endif
3684 4122
3685 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4123 /* don't let timeouts decrease the waittime below timeout_blocktime */
3686 if (expect_false (waittime < timeout_blocktime)) 4124 if (ecb_expect_false (waittime < timeout_blocktime))
3687 waittime = timeout_blocktime; 4125 waittime = timeout_blocktime;
3688 4126
3689 /* at this point, we NEED to wait, so we have to ensure */ 4127 /* now there are two more special cases left, either we have
3690 /* 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 */
3691 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.)
3692 waittime = backend_mintime; 4135 : backend_mintime;
3693 4136
3694 /* extra check because io_blocktime is commonly 0 */ 4137 /* extra check because io_blocktime is commonly 0 */
3695 if (expect_false (io_blocktime)) 4138 if (ecb_expect_false (io_blocktime))
3696 { 4139 {
3697 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4140 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3698 4141
3699 if (sleeptime > waittime - backend_mintime) 4142 if (sleeptime > waittime - backend_mintime)
3700 sleeptime = waittime - backend_mintime; 4143 sleeptime = waittime - backend_mintime;
3701 4144
3702 if (expect_true (sleeptime > 0.)) 4145 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3703 { 4146 {
3704 ev_sleep (sleeptime); 4147 ev_sleep (sleeptime);
3705 waittime -= sleeptime; 4148 waittime -= sleeptime;
3706 } 4149 }
3707 } 4150 }
… …
3721 { 4164 {
3722 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)));
3723 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4166 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3724 } 4167 }
3725 4168
3726
3727 /* update ev_rt_now, do magic */ 4169 /* update ev_rt_now, do magic */
3728 time_update (EV_A_ waittime + sleeptime); 4170 time_update (EV_A_ waittime + sleeptime);
3729 } 4171 }
3730 4172
3731 /* queue pending timers and reschedule them */ 4173 /* queue pending timers and reschedule them */
… …
3739 idle_reify (EV_A); 4181 idle_reify (EV_A);
3740#endif 4182#endif
3741 4183
3742#if EV_CHECK_ENABLE 4184#if EV_CHECK_ENABLE
3743 /* queue check watchers, to be executed first */ 4185 /* queue check watchers, to be executed first */
3744 if (expect_false (checkcnt)) 4186 if (ecb_expect_false (checkcnt))
3745 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4187 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3746#endif 4188#endif
3747 4189
3748 EV_INVOKE_PENDING; 4190 EV_INVOKE_PENDING;
3749 } 4191 }
3750 while (expect_true ( 4192 while (ecb_expect_true (
3751 activecnt 4193 activecnt
3752 && !loop_done 4194 && !loop_done
3753 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4195 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3754 )); 4196 ));
3755 4197
… …
3782} 4224}
3783 4225
3784void 4226void
3785ev_now_update (EV_P) EV_NOEXCEPT 4227ev_now_update (EV_P) EV_NOEXCEPT
3786{ 4228{
3787 time_update (EV_A_ 1e100); 4229 time_update (EV_A_ EV_TSTAMP_HUGE);
3788} 4230}
3789 4231
3790void 4232void
3791ev_suspend (EV_P) EV_NOEXCEPT 4233ev_suspend (EV_P) EV_NOEXCEPT
3792{ 4234{
… …
3819inline_size void 4261inline_size void
3820wlist_del (WL *head, WL elem) 4262wlist_del (WL *head, WL elem)
3821{ 4263{
3822 while (*head) 4264 while (*head)
3823 { 4265 {
3824 if (expect_true (*head == elem)) 4266 if (ecb_expect_true (*head == elem))
3825 { 4267 {
3826 *head = elem->next; 4268 *head = elem->next;
3827 break; 4269 break;
3828 } 4270 }
3829 4271
… …
3846ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT 4288ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3847{ 4289{
3848 W w_ = (W)w; 4290 W w_ = (W)w;
3849 int pending = w_->pending; 4291 int pending = w_->pending;
3850 4292
3851 if (expect_true (pending)) 4293 if (ecb_expect_true (pending))
3852 { 4294 {
3853 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4295 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3854 p->w = (W)&pending_w; 4296 p->w = (W)&pending_w;
3855 w_->pending = 0; 4297 w_->pending = 0;
3856 return p->events; 4298 return p->events;
… …
3883 w->active = 0; 4325 w->active = 0;
3884} 4326}
3885 4327
3886/*****************************************************************************/ 4328/*****************************************************************************/
3887 4329
3888noinline 4330ecb_noinline
3889void 4331void
3890ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT 4332ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3891{ 4333{
3892 int fd = w->fd; 4334 int fd = w->fd;
3893 4335
3894 if (expect_false (ev_is_active (w))) 4336 if (ecb_expect_false (ev_is_active (w)))
3895 return; 4337 return;
3896 4338
3897 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4339 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3898 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))));
3899 4341
4342#if EV_VERIFY >= 2
4343 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4344#endif
3900 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3901 4346
3902 ev_start (EV_A_ (W)w, 1); 4347 ev_start (EV_A_ (W)w, 1);
3903 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill); 4348 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3904 wlist_add (&anfds[fd].head, (WL)w); 4349 wlist_add (&anfds[fd].head, (WL)w);
… …
3910 w->events &= ~EV__IOFDSET; 4355 w->events &= ~EV__IOFDSET;
3911 4356
3912 EV_FREQUENT_CHECK; 4357 EV_FREQUENT_CHECK;
3913} 4358}
3914 4359
3915noinline 4360ecb_noinline
3916void 4361void
3917ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT 4362ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3918{ 4363{
3919 clear_pending (EV_A_ (W)w); 4364 clear_pending (EV_A_ (W)w);
3920 if (expect_false (!ev_is_active (w))) 4365 if (ecb_expect_false (!ev_is_active (w)))
3921 return; 4366 return;
3922 4367
3923 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));
3924 4369
4370#if EV_VERIFY >= 2
4371 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4372#endif
3925 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3926 4374
3927 wlist_del (&anfds[w->fd].head, (WL)w); 4375 wlist_del (&anfds[w->fd].head, (WL)w);
3928 ev_stop (EV_A_ (W)w); 4376 ev_stop (EV_A_ (W)w);
3929 4377
3930 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4378 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3931 4379
3932 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
3933} 4381}
3934 4382
3935noinline 4383ecb_noinline
3936void 4384void
3937ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT 4385ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3938{ 4386{
3939 if (expect_false (ev_is_active (w))) 4387 if (ecb_expect_false (ev_is_active (w)))
3940 return; 4388 return;
3941 4389
3942 ev_at (w) += mn_now; 4390 ev_at (w) += mn_now;
3943 4391
3944 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.));
… …
3955 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3956 4404
3957 /*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));*/
3958} 4406}
3959 4407
3960noinline 4408ecb_noinline
3961void 4409void
3962ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT 4410ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4411{
3964 clear_pending (EV_A_ (W)w); 4412 clear_pending (EV_A_ (W)w);
3965 if (expect_false (!ev_is_active (w))) 4413 if (ecb_expect_false (!ev_is_active (w)))
3966 return; 4414 return;
3967 4415
3968 EV_FREQUENT_CHECK; 4416 EV_FREQUENT_CHECK;
3969 4417
3970 { 4418 {
… …
3972 4420
3973 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));
3974 4422
3975 --timercnt; 4423 --timercnt;
3976 4424
3977 if (expect_true (active < timercnt + HEAP0)) 4425 if (ecb_expect_true (active < timercnt + HEAP0))
3978 { 4426 {
3979 timers [active] = timers [timercnt + HEAP0]; 4427 timers [active] = timers [timercnt + HEAP0];
3980 adjustheap (timers, timercnt, active); 4428 adjustheap (timers, timercnt, active);
3981 } 4429 }
3982 } 4430 }
… …
3986 ev_stop (EV_A_ (W)w); 4434 ev_stop (EV_A_ (W)w);
3987 4435
3988 EV_FREQUENT_CHECK; 4436 EV_FREQUENT_CHECK;
3989} 4437}
3990 4438
3991noinline 4439ecb_noinline
3992void 4440void
3993ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT 4441ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3994{ 4442{
3995 EV_FREQUENT_CHECK; 4443 EV_FREQUENT_CHECK;
3996 4444
… …
4017} 4465}
4018 4466
4019ev_tstamp 4467ev_tstamp
4020ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT 4468ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
4021{ 4469{
4022 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.));
4023} 4471}
4024 4472
4025#if EV_PERIODIC_ENABLE 4473#if EV_PERIODIC_ENABLE
4026noinline 4474ecb_noinline
4027void 4475void
4028ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT 4476ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4477{
4030 if (expect_false (ev_is_active (w))) 4478 if (ecb_expect_false (ev_is_active (w)))
4031 return; 4479 return;
4480
4481#if EV_USE_TIMERFD
4482 if (timerfd == -2)
4483 evtimerfd_init (EV_A);
4484#endif
4032 4485
4033 if (w->reschedule_cb) 4486 if (w->reschedule_cb)
4034 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4487 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4035 else if (w->interval) 4488 else if (w->interval)
4036 { 4489 {
… …
4052 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
4053 4506
4054 /*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));*/
4055} 4508}
4056 4509
4057noinline 4510ecb_noinline
4058void 4511void
4059ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT 4512ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4060{ 4513{
4061 clear_pending (EV_A_ (W)w); 4514 clear_pending (EV_A_ (W)w);
4062 if (expect_false (!ev_is_active (w))) 4515 if (ecb_expect_false (!ev_is_active (w)))
4063 return; 4516 return;
4064 4517
4065 EV_FREQUENT_CHECK; 4518 EV_FREQUENT_CHECK;
4066 4519
4067 { 4520 {
… …
4069 4522
4070 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));
4071 4524
4072 --periodiccnt; 4525 --periodiccnt;
4073 4526
4074 if (expect_true (active < periodiccnt + HEAP0)) 4527 if (ecb_expect_true (active < periodiccnt + HEAP0))
4075 { 4528 {
4076 periodics [active] = periodics [periodiccnt + HEAP0]; 4529 periodics [active] = periodics [periodiccnt + HEAP0];
4077 adjustheap (periodics, periodiccnt, active); 4530 adjustheap (periodics, periodiccnt, active);
4078 } 4531 }
4079 } 4532 }
… …
4081 ev_stop (EV_A_ (W)w); 4534 ev_stop (EV_A_ (W)w);
4082 4535
4083 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
4084} 4537}
4085 4538
4086noinline 4539ecb_noinline
4087void 4540void
4088ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT 4541ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4089{ 4542{
4090 /* TODO: use adjustheap and recalculation */ 4543 /* TODO: use adjustheap and recalculation */
4091 ev_periodic_stop (EV_A_ w); 4544 ev_periodic_stop (EV_A_ w);
… …
4097# define SA_RESTART 0 4550# define SA_RESTART 0
4098#endif 4551#endif
4099 4552
4100#if EV_SIGNAL_ENABLE 4553#if EV_SIGNAL_ENABLE
4101 4554
4102noinline 4555ecb_noinline
4103void 4556void
4104ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT 4557ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4105{ 4558{
4106 if (expect_false (ev_is_active (w))) 4559 if (ecb_expect_false (ev_is_active (w)))
4107 return; 4560 return;
4108 4561
4109 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));
4110 4563
4111#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
… …
4180 } 4633 }
4181 4634
4182 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
4183} 4636}
4184 4637
4185noinline 4638ecb_noinline
4186void 4639void
4187ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT 4640ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4188{ 4641{
4189 clear_pending (EV_A_ (W)w); 4642 clear_pending (EV_A_ (W)w);
4190 if (expect_false (!ev_is_active (w))) 4643 if (ecb_expect_false (!ev_is_active (w)))
4191 return; 4644 return;
4192 4645
4193 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4194 4647
4195 wlist_del (&signals [w->signum - 1].head, (WL)w); 4648 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4228ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT 4681ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4229{ 4682{
4230#if EV_MULTIPLICITY 4683#if EV_MULTIPLICITY
4231 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));
4232#endif 4685#endif
4233 if (expect_false (ev_is_active (w))) 4686 if (ecb_expect_false (ev_is_active (w)))
4234 return; 4687 return;
4235 4688
4236 EV_FREQUENT_CHECK; 4689 EV_FREQUENT_CHECK;
4237 4690
4238 ev_start (EV_A_ (W)w, 1); 4691 ev_start (EV_A_ (W)w, 1);
… …
4243 4696
4244void 4697void
4245ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT 4698ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4246{ 4699{
4247 clear_pending (EV_A_ (W)w); 4700 clear_pending (EV_A_ (W)w);
4248 if (expect_false (!ev_is_active (w))) 4701 if (ecb_expect_false (!ev_is_active (w)))
4249 return; 4702 return;
4250 4703
4251 EV_FREQUENT_CHECK; 4704 EV_FREQUENT_CHECK;
4252 4705
4253 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4706 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4267 4720
4268#define DEF_STAT_INTERVAL 5.0074891 4721#define DEF_STAT_INTERVAL 5.0074891
4269#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4722#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4270#define MIN_STAT_INTERVAL 0.1074891 4723#define MIN_STAT_INTERVAL 0.1074891
4271 4724
4272noinline 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);
4273 4726
4274#if EV_USE_INOTIFY 4727#if EV_USE_INOTIFY
4275 4728
4276/* 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 */
4277# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4730# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4278 4731
4279noinline 4732ecb_noinline
4280static void 4733static void
4281infy_add (EV_P_ ev_stat *w) 4734infy_add (EV_P_ ev_stat *w)
4282{ 4735{
4283 w->wd = inotify_add_watch (fs_fd, w->path, 4736 w->wd = inotify_add_watch (fs_fd, w->path,
4284 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4737 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4349 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4802 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4350 ev_timer_again (EV_A_ &w->timer); 4803 ev_timer_again (EV_A_ &w->timer);
4351 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4804 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4352} 4805}
4353 4806
4354noinline 4807ecb_noinline
4355static void 4808static void
4356infy_del (EV_P_ ev_stat *w) 4809infy_del (EV_P_ ev_stat *w)
4357{ 4810{
4358 int slot; 4811 int slot;
4359 int wd = w->wd; 4812 int wd = w->wd;
… …
4367 4820
4368 /* remove this watcher, if others are watching it, they will rearm */ 4821 /* remove this watcher, if others are watching it, they will rearm */
4369 inotify_rm_watch (fs_fd, wd); 4822 inotify_rm_watch (fs_fd, wd);
4370} 4823}
4371 4824
4372noinline 4825ecb_noinline
4373static void 4826static void
4374infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4827infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4375{ 4828{
4376 if (slot < 0) 4829 if (slot < 0)
4377 /* overflow, need to check for all hash slots */ 4830 /* overflow, need to check for all hash slots */
… …
4523 w->attr.st_nlink = 0; 4976 w->attr.st_nlink = 0;
4524 else if (!w->attr.st_nlink) 4977 else if (!w->attr.st_nlink)
4525 w->attr.st_nlink = 1; 4978 w->attr.st_nlink = 1;
4526} 4979}
4527 4980
4528noinline 4981ecb_noinline
4529static void 4982static void
4530stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4983stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4531{ 4984{
4532 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4985 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4533 4986
… …
4567} 5020}
4568 5021
4569void 5022void
4570ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT 5023ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 5024{
4572 if (expect_false (ev_is_active (w))) 5025 if (ecb_expect_false (ev_is_active (w)))
4573 return; 5026 return;
4574 5027
4575 ev_stat_stat (EV_A_ w); 5028 ev_stat_stat (EV_A_ w);
4576 5029
4577 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5030 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4599 5052
4600void 5053void
4601ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT 5054ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4602{ 5055{
4603 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4604 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4605 return; 5058 return;
4606 5059
4607 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4608 5061
4609#if EV_USE_INOTIFY 5062#if EV_USE_INOTIFY
… …
4624 5077
4625#if EV_IDLE_ENABLE 5078#if EV_IDLE_ENABLE
4626void 5079void
4627ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT 5080ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4628{ 5081{
4629 if (expect_false (ev_is_active (w))) 5082 if (ecb_expect_false (ev_is_active (w)))
4630 return; 5083 return;
4631 5084
4632 pri_adjust (EV_A_ (W)w); 5085 pri_adjust (EV_A_ (W)w);
4633 5086
4634 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
… …
4648 5101
4649void 5102void
4650ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT 5103ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4651{ 5104{
4652 clear_pending (EV_A_ (W)w); 5105 clear_pending (EV_A_ (W)w);
4653 if (expect_false (!ev_is_active (w))) 5106 if (ecb_expect_false (!ev_is_active (w)))
4654 return; 5107 return;
4655 5108
4656 EV_FREQUENT_CHECK; 5109 EV_FREQUENT_CHECK;
4657 5110
4658 { 5111 {
… …
4671 5124
4672#if EV_PREPARE_ENABLE 5125#if EV_PREPARE_ENABLE
4673void 5126void
4674ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT 5127ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4675{ 5128{
4676 if (expect_false (ev_is_active (w))) 5129 if (ecb_expect_false (ev_is_active (w)))
4677 return; 5130 return;
4678 5131
4679 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4680 5133
4681 ev_start (EV_A_ (W)w, ++preparecnt); 5134 ev_start (EV_A_ (W)w, ++preparecnt);
… …
4687 5140
4688void 5141void
4689ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT 5142ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4690{ 5143{
4691 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4692 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4693 return; 5146 return;
4694 5147
4695 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4696 5149
4697 { 5150 {
… …
4709 5162
4710#if EV_CHECK_ENABLE 5163#if EV_CHECK_ENABLE
4711void 5164void
4712ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT 5165ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4713{ 5166{
4714 if (expect_false (ev_is_active (w))) 5167 if (ecb_expect_false (ev_is_active (w)))
4715 return; 5168 return;
4716 5169
4717 EV_FREQUENT_CHECK; 5170 EV_FREQUENT_CHECK;
4718 5171
4719 ev_start (EV_A_ (W)w, ++checkcnt); 5172 ev_start (EV_A_ (W)w, ++checkcnt);
… …
4725 5178
4726void 5179void
4727ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT 5180ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4728{ 5181{
4729 clear_pending (EV_A_ (W)w); 5182 clear_pending (EV_A_ (W)w);
4730 if (expect_false (!ev_is_active (w))) 5183 if (ecb_expect_false (!ev_is_active (w)))
4731 return; 5184 return;
4732 5185
4733 EV_FREQUENT_CHECK; 5186 EV_FREQUENT_CHECK;
4734 5187
4735 { 5188 {
… …
4744 EV_FREQUENT_CHECK; 5197 EV_FREQUENT_CHECK;
4745} 5198}
4746#endif 5199#endif
4747 5200
4748#if EV_EMBED_ENABLE 5201#if EV_EMBED_ENABLE
4749noinline 5202ecb_noinline
4750void 5203void
4751ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT 5204ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4752{ 5205{
4753 ev_run (w->other, EVRUN_NOWAIT); 5206 ev_run (w->other, EVRUN_NOWAIT);
4754} 5207}
… …
4778 ev_run (EV_A_ EVRUN_NOWAIT); 5231 ev_run (EV_A_ EVRUN_NOWAIT);
4779 } 5232 }
4780 } 5233 }
4781} 5234}
4782 5235
5236#if EV_FORK_ENABLE
4783static void 5237static void
4784embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5238embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4785{ 5239{
4786 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));
4787 5241
… …
4794 ev_run (EV_A_ EVRUN_NOWAIT); 5248 ev_run (EV_A_ EVRUN_NOWAIT);
4795 } 5249 }
4796 5250
4797 ev_embed_start (EV_A_ w); 5251 ev_embed_start (EV_A_ w);
4798} 5252}
5253#endif
4799 5254
4800#if 0 5255#if 0
4801static void 5256static void
4802embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5257embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4803{ 5258{
… …
4806#endif 5261#endif
4807 5262
4808void 5263void
4809ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT 5264ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 5265{
4811 if (expect_false (ev_is_active (w))) 5266 if (ecb_expect_false (ev_is_active (w)))
4812 return; 5267 return;
4813 5268
4814 { 5269 {
4815 EV_P = w->other; 5270 EV_P = w->other;
4816 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 ()));
… …
4824 5279
4825 ev_prepare_init (&w->prepare, embed_prepare_cb); 5280 ev_prepare_init (&w->prepare, embed_prepare_cb);
4826 ev_set_priority (&w->prepare, EV_MINPRI); 5281 ev_set_priority (&w->prepare, EV_MINPRI);
4827 ev_prepare_start (EV_A_ &w->prepare); 5282 ev_prepare_start (EV_A_ &w->prepare);
4828 5283
5284#if EV_FORK_ENABLE
4829 ev_fork_init (&w->fork, embed_fork_cb); 5285 ev_fork_init (&w->fork, embed_fork_cb);
4830 ev_fork_start (EV_A_ &w->fork); 5286 ev_fork_start (EV_A_ &w->fork);
5287#endif
4831 5288
4832 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5289 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4833 5290
4834 ev_start (EV_A_ (W)w, 1); 5291 ev_start (EV_A_ (W)w, 1);
4835 5292
… …
4838 5295
4839void 5296void
4840ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT 5297ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4841{ 5298{
4842 clear_pending (EV_A_ (W)w); 5299 clear_pending (EV_A_ (W)w);
4843 if (expect_false (!ev_is_active (w))) 5300 if (ecb_expect_false (!ev_is_active (w)))
4844 return; 5301 return;
4845 5302
4846 EV_FREQUENT_CHECK; 5303 EV_FREQUENT_CHECK;
4847 5304
4848 ev_io_stop (EV_A_ &w->io); 5305 ev_io_stop (EV_A_ &w->io);
4849 ev_prepare_stop (EV_A_ &w->prepare); 5306 ev_prepare_stop (EV_A_ &w->prepare);
5307#if EV_FORK_ENABLE
4850 ev_fork_stop (EV_A_ &w->fork); 5308 ev_fork_stop (EV_A_ &w->fork);
5309#endif
4851 5310
4852 ev_stop (EV_A_ (W)w); 5311 ev_stop (EV_A_ (W)w);
4853 5312
4854 EV_FREQUENT_CHECK; 5313 EV_FREQUENT_CHECK;
4855} 5314}
… …
4857 5316
4858#if EV_FORK_ENABLE 5317#if EV_FORK_ENABLE
4859void 5318void
4860ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT 5319ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4861{ 5320{
4862 if (expect_false (ev_is_active (w))) 5321 if (ecb_expect_false (ev_is_active (w)))
4863 return; 5322 return;
4864 5323
4865 EV_FREQUENT_CHECK; 5324 EV_FREQUENT_CHECK;
4866 5325
4867 ev_start (EV_A_ (W)w, ++forkcnt); 5326 ev_start (EV_A_ (W)w, ++forkcnt);
… …
4873 5332
4874void 5333void
4875ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT 5334ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4876{ 5335{
4877 clear_pending (EV_A_ (W)w); 5336 clear_pending (EV_A_ (W)w);
4878 if (expect_false (!ev_is_active (w))) 5337 if (ecb_expect_false (!ev_is_active (w)))
4879 return; 5338 return;
4880 5339
4881 EV_FREQUENT_CHECK; 5340 EV_FREQUENT_CHECK;
4882 5341
4883 { 5342 {
… …
4895 5354
4896#if EV_CLEANUP_ENABLE 5355#if EV_CLEANUP_ENABLE
4897void 5356void
4898ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5357ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4899{ 5358{
4900 if (expect_false (ev_is_active (w))) 5359 if (ecb_expect_false (ev_is_active (w)))
4901 return; 5360 return;
4902 5361
4903 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4904 5363
4905 ev_start (EV_A_ (W)w, ++cleanupcnt); 5364 ev_start (EV_A_ (W)w, ++cleanupcnt);
… …
4913 5372
4914void 5373void
4915ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT 5374ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4916{ 5375{
4917 clear_pending (EV_A_ (W)w); 5376 clear_pending (EV_A_ (W)w);
4918 if (expect_false (!ev_is_active (w))) 5377 if (ecb_expect_false (!ev_is_active (w)))
4919 return; 5378 return;
4920 5379
4921 EV_FREQUENT_CHECK; 5380 EV_FREQUENT_CHECK;
4922 ev_ref (EV_A); 5381 ev_ref (EV_A);
4923 5382
… …
4936 5395
4937#if EV_ASYNC_ENABLE 5396#if EV_ASYNC_ENABLE
4938void 5397void
4939ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT 5398ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4940{ 5399{
4941 if (expect_false (ev_is_active (w))) 5400 if (ecb_expect_false (ev_is_active (w)))
4942 return; 5401 return;
4943 5402
4944 w->sent = 0; 5403 w->sent = 0;
4945 5404
4946 evpipe_init (EV_A); 5405 evpipe_init (EV_A);
… …
4956 5415
4957void 5416void
4958ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT 5417ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4959{ 5418{
4960 clear_pending (EV_A_ (W)w); 5419 clear_pending (EV_A_ (W)w);
4961 if (expect_false (!ev_is_active (w))) 5420 if (ecb_expect_false (!ev_is_active (w)))
4962 return; 5421 return;
4963 5422
4964 EV_FREQUENT_CHECK; 5423 EV_FREQUENT_CHECK;
4965 5424
4966 { 5425 {

Diff Legend

– Removed lines
+ Added lines
< Changed lines
> Changed lines