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Comparing libev/ev.c (file contents):
Revision 1.481 by root, Thu Jun 1 20:25:50 2017 UTC vs.
Revision 1.528 by root, Sat Jan 25 19:40:46 2020 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
165#endif 190# endif
191
192#endif
193
194/* OS X, in its infinite idiocy, actually HARDCODES
195 * a limit of 1024 into their select. Where people have brains,
196 * OS X engineers apparently have a vacuum. Or maybe they were
197 * ordered to have a vacuum, or they do anything for money.
198 * This might help. Or not.
199 * Note that this must be defined early, as other include files
200 * will rely on this define as well.
201 */
202#define _DARWIN_UNLIMITED_SELECT 1
166 203
167#include <stdlib.h> 204#include <stdlib.h>
168#include <string.h> 205#include <string.h>
169#include <fcntl.h> 206#include <fcntl.h>
170#include <stddef.h> 207#include <stddef.h>
… …
208# ifndef EV_SELECT_IS_WINSOCKET 245# ifndef EV_SELECT_IS_WINSOCKET
209# define EV_SELECT_IS_WINSOCKET 1 246# define EV_SELECT_IS_WINSOCKET 1
210# endif 247# endif
211# undef EV_AVOID_STDIO 248# undef EV_AVOID_STDIO
212#endif 249#endif
213
214/* OS X, in its infinite idiocy, actually HARDCODES
215 * a limit of 1024 into their select. Where people have brains,
216 * OS X engineers apparently have a vacuum. Or maybe they were
217 * ordered to have a vacuum, or they do anything for money.
218 * This might help. Or not.
219 */
220#define _DARWIN_UNLIMITED_SELECT 1
221 250
222/* this block tries to deduce configuration from header-defined symbols and defaults */ 251/* this block tries to deduce configuration from header-defined symbols and defaults */
223 252
224/* try to deduce the maximum number of signals on this platform */ 253/* try to deduce the maximum number of signals on this platform */
225#if defined EV_NSIG 254#if defined EV_NSIG
… …
313 342
314#ifndef EV_USE_PORT 343#ifndef EV_USE_PORT
315# define EV_USE_PORT 0 344# define EV_USE_PORT 0
316#endif 345#endif
317 346
347#ifndef EV_USE_LINUXAIO
348# if __linux /* libev currently assumes linux/aio_abi.h is always available on linux */
349# define EV_USE_LINUXAIO 0 /* was: 1, always off by default */
350# else
351# define EV_USE_LINUXAIO 0
352# endif
353#endif
354
355#ifndef EV_USE_IOURING
356# if __linux /* later checks might disable again */
357# define EV_USE_IOURING 1
358# else
359# define EV_USE_IOURING 0
360# endif
361#endif
362
318#ifndef EV_USE_INOTIFY 363#ifndef EV_USE_INOTIFY
319# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4)) 364# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 4))
320# define EV_USE_INOTIFY EV_FEATURE_OS 365# define EV_USE_INOTIFY EV_FEATURE_OS
321# else 366# else
322# define EV_USE_INOTIFY 0 367# define EV_USE_INOTIFY 0
… …
342#ifndef EV_USE_SIGNALFD 387#ifndef EV_USE_SIGNALFD
343# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7)) 388# if __linux && (__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 7))
344# define EV_USE_SIGNALFD EV_FEATURE_OS 389# define EV_USE_SIGNALFD EV_FEATURE_OS
345# else 390# else
346# 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
347# endif 400# endif
348#endif 401#endif
349 402
350#if 0 /* debugging */ 403#if 0 /* debugging */
351# define EV_VERIFY 3 404# define EV_VERIFY 3
… …
387# include <sys/syscall.h> 440# include <sys/syscall.h>
388# ifdef SYS_clock_gettime 441# ifdef SYS_clock_gettime
389# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) 442# define clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts))
390# undef EV_USE_MONOTONIC 443# undef EV_USE_MONOTONIC
391# define EV_USE_MONOTONIC 1 444# define EV_USE_MONOTONIC 1
445# define EV_NEED_SYSCALL 1
392# else 446# else
393# undef EV_USE_CLOCK_SYSCALL 447# undef EV_USE_CLOCK_SYSCALL
394# define EV_USE_CLOCK_SYSCALL 0 448# define EV_USE_CLOCK_SYSCALL 0
395# endif 449# endif
396#endif 450#endif
… …
410#if !EV_STAT_ENABLE 464#if !EV_STAT_ENABLE
411# undef EV_USE_INOTIFY 465# undef EV_USE_INOTIFY
412# define EV_USE_INOTIFY 0 466# define EV_USE_INOTIFY 0
413#endif 467#endif
414 468
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
415#if !EV_USE_NANOSLEEP 477#if !EV_USE_NANOSLEEP
416/* 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 */
417# if !defined _WIN32 && !defined __hpux 479# if !defined _WIN32 && !defined __hpux
418# 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
419# endif 506# endif
420#endif 507#endif
421 508
422#if EV_USE_INOTIFY 509#if EV_USE_INOTIFY
423# include <sys/statfs.h> 510# include <sys/statfs.h>
… …
428# define EV_USE_INOTIFY 0 515# define EV_USE_INOTIFY 0
429# endif 516# endif
430#endif 517#endif
431 518
432#if EV_USE_EVENTFD 519#if EV_USE_EVENTFD
433/* 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 */
434# include <stdint.h> 521# include <stdint.h>
435# ifndef EFD_NONBLOCK 522# ifndef EFD_NONBLOCK
436# define EFD_NONBLOCK O_NONBLOCK 523# define EFD_NONBLOCK O_NONBLOCK
437# endif 524# endif
438# ifndef EFD_CLOEXEC 525# ifndef EFD_CLOEXEC
… …
444# endif 531# endif
445EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags); 532EV_CPP(extern "C") int (eventfd) (unsigned int initval, int flags);
446#endif 533#endif
447 534
448#if EV_USE_SIGNALFD 535#if EV_USE_SIGNALFD
449/* 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 */
450# include <stdint.h> 537# include <stdint.h>
451# ifndef SFD_NONBLOCK 538# ifndef SFD_NONBLOCK
452# define SFD_NONBLOCK O_NONBLOCK 539# define SFD_NONBLOCK O_NONBLOCK
453# endif 540# endif
454# ifndef SFD_CLOEXEC 541# ifndef SFD_CLOEXEC
… …
456# define SFD_CLOEXEC O_CLOEXEC 543# define SFD_CLOEXEC O_CLOEXEC
457# else 544# else
458# define SFD_CLOEXEC 02000000 545# define SFD_CLOEXEC 02000000
459# endif 546# endif
460# endif 547# endif
461EV_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);
462 549
463struct signalfd_siginfo 550struct signalfd_siginfo
464{ 551{
465 uint32_t ssi_signo; 552 uint32_t ssi_signo;
466 char pad[128 - sizeof (uint32_t)]; 553 char pad[128 - sizeof (uint32_t)];
467}; 554};
468#endif 555#endif
469 556
470/**/ 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/*****************************************************************************/
471 568
472#if EV_VERIFY >= 3 569#if EV_VERIFY >= 3
473# define EV_FREQUENT_CHECK ev_verify (EV_A) 570# define EV_FREQUENT_CHECK ev_verify (EV_A)
474#else 571#else
475# define EV_FREQUENT_CHECK do { } while (0) 572# define EV_FREQUENT_CHECK do { } while (0)
… …
480 * This value is good at least till the year 4000. 577 * This value is good at least till the year 4000.
481 */ 578 */
482#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */ 579#define MIN_INTERVAL 0.0001220703125 /* 1/2**13, good till 4000 */
483/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */ 580/*#define MIN_INTERVAL 0.00000095367431640625 /* 1/2**20, good till 2200 */
484 581
485#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) */
486#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 */
487 585
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
488#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)
489#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
490 603
491/* 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 */
492/* ECB.H BEGIN */ 605/* ECB.H BEGIN */
493/* 606/*
494 * libecb - http://software.schmorp.de/pkg/libecb 607 * libecb - http://software.schmorp.de/pkg/libecb
495 * 608 *
496 * Copyright (©) 2009-2015 Marc Alexander Lehmann <libecb@schmorp.de> 609 * Copyright (©) 2009-2015,2018-2020 Marc Alexander Lehmann <libecb@schmorp.de>
497 * Copyright (©) 2011 Emanuele Giaquinta 610 * Copyright (©) 2011 Emanuele Giaquinta
498 * All rights reserved. 611 * All rights reserved.
499 * 612 *
500 * Redistribution and use in source and binary forms, with or without modifica- 613 * Redistribution and use in source and binary forms, with or without modifica-
501 * tion, are permitted provided that the following conditions are met: 614 * tion, are permitted provided that the following conditions are met:
… …
532 645
533#ifndef ECB_H 646#ifndef ECB_H
534#define ECB_H 647#define ECB_H
535 648
536/* 16 bits major, 16 bits minor */ 649/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010005 650#define ECB_VERSION 0x00010008
538 651
539#ifdef _WIN32 652#include <string.h> /* for memcpy */
653
654#if defined (_WIN32) && !defined (__MINGW32__)
540 typedef signed char int8_t; 655 typedef signed char int8_t;
541 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;
542 typedef signed short int16_t; 659 typedef signed short int16_t;
543 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;
544 typedef signed int int32_t; 663 typedef signed int int32_t;
545 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;
546 #if __GNUC__ 667 #if __GNUC__
547 typedef signed long long int64_t; 668 typedef signed long long int64_t;
548 typedef unsigned long long uint64_t; 669 typedef unsigned long long uint64_t;
549 #else /* _MSC_VER || __BORLANDC__ */ 670 #else /* _MSC_VER || __BORLANDC__ */
550 typedef signed __int64 int64_t; 671 typedef signed __int64 int64_t;
551 typedef unsigned __int64 uint64_t; 672 typedef unsigned __int64 uint64_t;
552 #endif 673 #endif
674 typedef int64_t int_fast64_t;
675 typedef uint64_t uint_fast64_t;
553 #ifdef _WIN64 676 #ifdef _WIN64
554 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
555 typedef uint64_t uintptr_t; 678 typedef uint64_t uintptr_t;
556 typedef int64_t intptr_t; 679 typedef int64_t intptr_t;
557 #else 680 #else
… …
569#endif 692#endif
570 693
571#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__) 694#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
572#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64) 695#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
573 696
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
574/* work around x32 idiocy by defining proper macros */ 705/* work around x32 idiocy by defining proper macros */
575#if ECB_GCC_AMD64 || ECB_MSVC_AMD64 706#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
576 #if _ILP32 707 #if _ILP32
577 #define ECB_AMD64_X32 1 708 #define ECB_AMD64_X32 1
578 #else 709 #else
… …
607 #define ECB_CLANG_EXTENSION(x) 0 738 #define ECB_CLANG_EXTENSION(x) 0
608#endif 739#endif
609 740
610#define ECB_CPP (__cplusplus+0) 741#define ECB_CPP (__cplusplus+0)
611#define ECB_CPP11 (__cplusplus >= 201103L) 742#define ECB_CPP11 (__cplusplus >= 201103L)
743#define ECB_CPP14 (__cplusplus >= 201402L)
744#define ECB_CPP17 (__cplusplus >= 201703L)
612 745
613#if ECB_CPP 746#if ECB_CPP
614 #define ECB_C 0 747 #define ECB_C 0
615 #define ECB_STDC_VERSION 0 748 #define ECB_STDC_VERSION 0
616#else 749#else
… …
618 #define ECB_STDC_VERSION __STDC_VERSION__ 751 #define ECB_STDC_VERSION __STDC_VERSION__
619#endif 752#endif
620 753
621#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 754#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
622#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 755#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
756#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
623 757
624#if ECB_CPP 758#if ECB_CPP
625 #define ECB_EXTERN_C extern "C" 759 #define ECB_EXTERN_C extern "C"
626 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 760 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
627 #define ECB_EXTERN_C_END } 761 #define ECB_EXTERN_C_END }
… …
653 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */ 787 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
654#endif 788#endif
655 789
656#ifndef ECB_MEMORY_FENCE 790#ifndef ECB_MEMORY_FENCE
657 #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")
658 #if __i386 || __i386__ 793 #if __i386 || __i386__
659 #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")
660 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 795 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
661 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 796 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
662 #elif ECB_GCC_AMD64 797 #elif ECB_GCC_AMD64
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 798 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
664 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 799 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
665 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 800 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
666 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 801 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
667 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 802 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
668 #elif defined __ARM_ARCH_2__ \ 803 #elif defined __ARM_ARCH_2__ \
669 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \ 804 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
670 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \ 805 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
… …
712 #if ECB_GCC_VERSION(4,7) 847 #if ECB_GCC_VERSION(4,7)
713 /* see comment below (stdatomic.h) about the C11 memory model. */ 848 /* see comment below (stdatomic.h) about the C11 memory model. */
714 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 849 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
715 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 850 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
716 #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)
717 853
718 #elif ECB_CLANG_EXTENSION(c_atomic) 854 #elif ECB_CLANG_EXTENSION(c_atomic)
719 /* see comment below (stdatomic.h) about the C11 memory model. */ 855 /* see comment below (stdatomic.h) about the C11 memory model. */
720 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 856 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
721 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 857 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
722 #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)
723 860
724 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 861 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
725 #define ECB_MEMORY_FENCE __sync_synchronize () 862 #define ECB_MEMORY_FENCE __sync_synchronize ()
726 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 863 #elif _MSC_VER >= 1500 /* VC++ 2008 */
727 /* 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... */
… …
737 #elif defined _WIN32 874 #elif defined _WIN32
738 #include <WinNT.h> 875 #include <WinNT.h>
739 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 876 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
740 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 877 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
741 #include <mbarrier.h> 878 #include <mbarrier.h>
742 #define ECB_MEMORY_FENCE __machine_rw_barrier () 879 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
743 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 880 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
744 #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 ()
745 #elif __xlC__ 883 #elif __xlC__
746 #define ECB_MEMORY_FENCE __sync () 884 #define ECB_MEMORY_FENCE __sync ()
747 #endif 885 #endif
748#endif 886#endif
749 887
750#ifndef ECB_MEMORY_FENCE 888#ifndef ECB_MEMORY_FENCE
751 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 889 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
752 /* 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, */
753 /* not just C11 atomics and atomic accesses */ 891 /* not just C11 atomics and atomic accesses */
754 #include <stdatomic.h> 892 #include <stdatomic.h>
755 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
756 /* any fence other than seq_cst, which isn't very efficient for us. */
757 /* Why that is, we don't know - either the C11 memory model is quite useless */
758 /* for most usages, or gcc and clang have a bug */
759 /* I *currently* lean towards the latter, and inefficiently implement */
760 /* all three of ecb's fences as a seq_cst fence */
761 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
762 /* for all __atomic_thread_fence's except seq_cst */
763 #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)
764 #endif 896 #endif
765#endif 897#endif
766 898
767#ifndef ECB_MEMORY_FENCE 899#ifndef ECB_MEMORY_FENCE
768 #if !ECB_AVOID_PTHREADS 900 #if !ECB_AVOID_PTHREADS
… …
786 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 918 #define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
787#endif 919#endif
788 920
789#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 921#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
790 #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 */
791#endif 927#endif
792 928
793/*****************************************************************************/ 929/*****************************************************************************/
794 930
795#if ECB_CPP 931#if ECB_CPP
… …
1079ecb_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); }
1080ecb_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); }
1081ecb_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); }
1082ecb_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); }
1083 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
1084#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))
1085 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16) 1259 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1086 #define ecb_bswap16(x) __builtin_bswap16 (x) 1260 #define ecb_bswap16(x) __builtin_bswap16 (x)
1087 #else 1261 #else
1088 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1262 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
… …
1159ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1333ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1160ecb_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; }
1161ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1335ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1162ecb_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; }
1163 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
1164#if ECB_GCC_VERSION(3,0) || ECB_C99 1410#if ECB_GCC_VERSION(3,0) || ECB_C99
1165 #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))
1166#else 1412#else
1167 #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)))
1168#endif 1414#endif
… …
1191 return N; 1437 return N;
1192 } 1438 }
1193#else 1439#else
1194 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1440 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1195#endif 1441#endif
1442
1443/*****************************************************************************/
1196 1444
1197ecb_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);
1198ecb_function_ ecb_const uint32_t 1446ecb_function_ ecb_const uint32_t
1199ecb_binary16_to_binary32 (uint32_t x) 1447ecb_binary16_to_binary32 (uint32_t x)
1200{ 1448{
… …
1309 || defined __sh__ \ 1557 || defined __sh__ \
1310 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \ 1558 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1311 || (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__)) \
1312 || defined __aarch64__ 1560 || defined __aarch64__
1313 #define ECB_STDFP 1 1561 #define ECB_STDFP 1
1314 #include <string.h> /* for memcpy */
1315#else 1562#else
1316 #define ECB_STDFP 0 1563 #define ECB_STDFP 0
1317#endif 1564#endif
1318 1565
1319#ifndef ECB_NO_LIBM 1566#ifndef ECB_NO_LIBM
… …
1504/* ECB.H END */ 1751/* ECB.H END */
1505 1752
1506#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1753#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1507/* 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
1508 * 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
1509 * 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
1510 * libev, in which cases the memory fences become nops. 1757 * libev, in which cases the memory fences become nops.
1511 * alternatively, you can remove this #error and link against libpthread, 1758 * alternatively, you can remove this #error and link against libpthread,
1512 * which will then provide the memory fences. 1759 * which will then provide the memory fences.
1513 */ 1760 */
1514# error "memory fences not defined for your architecture, please report" 1761# error "memory fences not defined for your architecture, please report"
… …
1518# define ECB_MEMORY_FENCE do { } while (0) 1765# define ECB_MEMORY_FENCE do { } while (0)
1519# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1766# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1520# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1767# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1521#endif 1768#endif
1522 1769
1523#define expect_false(cond) ecb_expect_false (cond)
1524#define expect_true(cond) ecb_expect_true (cond)
1525#define noinline ecb_noinline
1526
1527#define inline_size ecb_inline 1770#define inline_size ecb_inline
1528 1771
1529#if EV_FEATURE_CODE 1772#if EV_FEATURE_CODE
1530# define inline_speed ecb_inline 1773# define inline_speed ecb_inline
1531#else 1774#else
1532# define inline_speed noinline static 1775# define inline_speed ecb_noinline static
1533#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/*****************************************************************************/
1534 1843
1535#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1844#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1536 1845
1537#if EV_MINPRI == EV_MAXPRI 1846#if EV_MINPRI == EV_MAXPRI
1538# define ABSPRI(w) (((W)w), 0) 1847# define ABSPRI(w) (((W)w), 0)
1539#else 1848#else
1540# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1849# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1541#endif 1850#endif
1542 1851
1543#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1852#define EMPTY /* required for microsofts broken pseudo-c compiler */
1544#define EMPTY2(a,b) /* used to suppress some warnings */
1545 1853
1546typedef ev_watcher *W; 1854typedef ev_watcher *W;
1547typedef ev_watcher_list *WL; 1855typedef ev_watcher_list *WL;
1548typedef ev_watcher_time *WT; 1856typedef ev_watcher_time *WT;
1549 1857
… …
1574# include "ev_win32.c" 1882# include "ev_win32.c"
1575#endif 1883#endif
1576 1884
1577/*****************************************************************************/ 1885/*****************************************************************************/
1578 1886
1887#if EV_USE_LINUXAIO
1888# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1889#endif
1890
1579/* define a suitable floor function (only used by periodics atm) */ 1891/* define a suitable floor function (only used by periodics atm) */
1580 1892
1581#if EV_USE_FLOOR 1893#if EV_USE_FLOOR
1582# include <math.h> 1894# include <math.h>
1583# define ev_floor(v) floor (v) 1895# define ev_floor(v) floor (v)
1584#else 1896#else
1585 1897
1586#include <float.h> 1898#include <float.h>
1587 1899
1588/* a floor() replacement function, should be independent of ev_tstamp type */ 1900/* a floor() replacement function, should be independent of ev_tstamp type */
1589noinline 1901ecb_noinline
1590static ev_tstamp 1902static ev_tstamp
1591ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1592{ 1904{
1593 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1594#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1595 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1596#else 1908#else
1597 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1598#endif 1910#endif
1599 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
1600 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1601 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1602 { 1922 {
1603 ev_tstamp f; 1923 ev_tstamp f;
1604 1924
1605 if (v == v - 1.) 1925 if (v == v - 1.)
1606 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1607 1927
1608 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1609 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1610 } 1930 }
1611 1931
1612 /* special treatment for negative args? */
1613 if (expect_false (v < 0.))
1614 {
1615 ev_tstamp f = -ev_floor (-v);
1616
1617 return f - (f == v ? 0 : 1);
1618 }
1619
1620 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1621 return (unsigned long)v; 1933 return (unsigned long)v;
1622} 1934}
1623 1935
1624#endif 1936#endif
… …
1627 1939
1628#ifdef __linux 1940#ifdef __linux
1629# include <sys/utsname.h> 1941# include <sys/utsname.h>
1630#endif 1942#endif
1631 1943
1632noinline ecb_cold 1944ecb_noinline ecb_cold
1633static unsigned int 1945static unsigned int
1634ev_linux_version (void) 1946ev_linux_version (void)
1635{ 1947{
1636#ifdef __linux 1948#ifdef __linux
1637 unsigned int v = 0; 1949 unsigned int v = 0;
… …
1667} 1979}
1668 1980
1669/*****************************************************************************/ 1981/*****************************************************************************/
1670 1982
1671#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1672noinline ecb_cold 1984ecb_noinline ecb_cold
1673static void 1985static void
1674ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1675{ 1987{
1676 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1677} 1989}
1678#endif 1990#endif
1679 1991
1680static void (*syserr_cb)(const char *msg) EV_THROW; 1992static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1681 1993
1682ecb_cold 1994ecb_cold
1683void 1995void
1684ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1996ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1685{ 1997{
1686 syserr_cb = cb; 1998 syserr_cb = cb;
1687} 1999}
1688 2000
1689noinline ecb_cold 2001ecb_noinline ecb_cold
1690static void 2002static void
1691ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1692{ 2004{
1693 if (!msg) 2005 if (!msg)
1694 msg = "(libev) system error"; 2006 msg = "(libev) system error";
… …
1708 abort (); 2020 abort ();
1709 } 2021 }
1710} 2022}
1711 2023
1712static void * 2024static void *
1713ev_realloc_emul (void *ptr, long size) EV_THROW 2025ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1714{ 2026{
1715 /* some systems, notably openbsd and darwin, fail to properly 2027 /* some systems, notably openbsd and darwin, fail to properly
1716 * implement realloc (x, 0) (as required by both ansi c-89 and 2028 * implement realloc (x, 0) (as required by both ansi c-89 and
1717 * the single unix specification, so work around them here. 2029 * the single unix specification, so work around them here.
1718 * recently, also (at least) fedora and debian started breaking it, 2030 * recently, also (at least) fedora and debian started breaking it,
… …
1724 2036
1725 free (ptr); 2037 free (ptr);
1726 return 0; 2038 return 0;
1727} 2039}
1728 2040
1729static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2041static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1730 2042
1731ecb_cold 2043ecb_cold
1732void 2044void
1733ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 2045ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1734{ 2046{
1735 alloc = cb; 2047 alloc = cb;
1736} 2048}
1737 2049
1738inline_speed void * 2050inline_speed void *
… …
1765typedef struct 2077typedef struct
1766{ 2078{
1767 WL head; 2079 WL head;
1768 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1769 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) */
1770 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 2082 unsigned char emask; /* some backends store the actual kernel mask in here */
1771 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1772#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1773 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1774#endif 2086#endif
1775#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1776 SOCKET handle; 2088 SOCKET handle;
… …
1830 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1831 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 */
1832 2144
1833#else 2145#else
1834 2146
1835 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 */
1836 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1837 #include "ev_vars.h" 2149 #include "ev_vars.h"
1838 #undef VAR 2150 #undef VAR
1839 2151
1840 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1841 2153
1842#endif 2154#endif
1843 2155
1844#if EV_FEATURE_API 2156#if EV_FEATURE_API
1845# 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)
1846# 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)
1847# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1848#else 2160#else
1849# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1850# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1851# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1855 2167
1856/*****************************************************************************/ 2168/*****************************************************************************/
1857 2169
1858#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1859ev_tstamp 2171ev_tstamp
1860ev_time (void) EV_THROW 2172ev_time (void) EV_NOEXCEPT
1861{ 2173{
1862#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1863 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1864 { 2176 {
1865 struct timespec ts; 2177 struct timespec ts;
1866 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1867 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1868 } 2180 }
1869#endif 2181#endif
1870 2182
2183 {
1871 struct timeval tv; 2184 struct timeval tv;
1872 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1873 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1874} 2188}
1875#endif 2189#endif
1876 2190
1877inline_size ev_tstamp 2191inline_size ev_tstamp
1878get_clock (void) 2192get_clock (void)
1879{ 2193{
1880#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1881 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1882 { 2196 {
1883 struct timespec ts; 2197 struct timespec ts;
1884 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1885 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1886 } 2200 }
1887#endif 2201#endif
1888 2202
1889 return ev_time (); 2203 return ev_time ();
1890} 2204}
1891 2205
1892#if EV_MULTIPLICITY 2206#if EV_MULTIPLICITY
1893ev_tstamp 2207ev_tstamp
1894ev_now (EV_P) EV_THROW 2208ev_now (EV_P) EV_NOEXCEPT
1895{ 2209{
1896 return ev_rt_now; 2210 return ev_rt_now;
1897} 2211}
1898#endif 2212#endif
1899 2213
1900void 2214void
1901ev_sleep (ev_tstamp delay) EV_THROW 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1902{ 2216{
1903 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1904 { 2218 {
1905#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1906 struct timespec ts; 2220 struct timespec ts;
1907 2221
1908 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1909 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1910#elif defined _WIN32 2224#elif defined _WIN32
2225 /* maybe this should round up, as ms is very low resolution */
2226 /* compared to select (µs) or nanosleep (ns) */
1911 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1912#else 2228#else
1913 struct timeval tv; 2229 struct timeval tv;
1914 2230
1915 /* 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 */
1916 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1946 } 2262 }
1947 2263
1948 return ncur; 2264 return ncur;
1949} 2265}
1950 2266
1951noinline ecb_cold 2267ecb_noinline ecb_cold
1952static void * 2268static void *
1953array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1954{ 2270{
1955 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1956 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1957} 2273}
1958 2274
2275#define array_needsize_noinit(base,offset,count)
2276
1959#define array_init_zero(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1960 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1961 2279
1962#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1963 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1964 { \ 2282 { \
1965 ecb_unused int ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1966 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1967 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1968 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1969 } 2287 }
1970 2288
1971#if 0 2289#if 0
1972#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1973 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1982 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
1983 2301
1984/*****************************************************************************/ 2302/*****************************************************************************/
1985 2303
1986/* dummy callback for pending events */ 2304/* dummy callback for pending events */
1987noinline 2305ecb_noinline
1988static void 2306static void
1989pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
1990{ 2308{
1991} 2309}
1992 2310
1993noinline 2311ecb_noinline
1994void 2312void
1995ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1996{ 2314{
1997 W w_ = (W)w; 2315 W w_ = (W)w;
1998 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
1999 2317
2000 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
2001 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
2002 else 2320 else
2003 { 2321 {
2004 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
2005 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
2006 pendings [pri][w_->pending - 1].w = w_; 2324 pendings [pri][w_->pending - 1].w = w_;
2007 pendings [pri][w_->pending - 1].events = revents; 2325 pendings [pri][w_->pending - 1].events = revents;
2008 } 2326 }
2009 2327
2010 pendingpri = NUMPRI - 1; 2328 pendingpri = NUMPRI - 1;
2011} 2329}
2012 2330
2013inline_speed void 2331inline_speed void
2014feed_reverse (EV_P_ W w) 2332feed_reverse (EV_P_ W w)
2015{ 2333{
2016 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2334 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2017 rfeeds [rfeedcnt++] = w; 2335 rfeeds [rfeedcnt++] = w;
2018} 2336}
2019 2337
2020inline_size void 2338inline_size void
2021feed_reverse_done (EV_P_ int revents) 2339feed_reverse_done (EV_P_ int revents)
… …
2056inline_speed void 2374inline_speed void
2057fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
2058{ 2376{
2059 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
2060 2378
2061 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
2062 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
2063} 2381}
2064 2382
2065void 2383void
2066ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2067{ 2385{
2068 if (fd >= 0 && fd < anfdmax) 2386 if (fd >= 0 && fd < anfdmax)
2069 fd_event_nocheck (EV_A_ fd, revents); 2387 fd_event_nocheck (EV_A_ fd, revents);
2070} 2388}
2071 2389
… …
2074inline_size void 2392inline_size void
2075fd_reify (EV_P) 2393fd_reify (EV_P)
2076{ 2394{
2077 int i; 2395 int i;
2078 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
2079#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2080 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2081 { 2411 {
2082 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2083 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2084 2414
2085 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2099 } 2429 }
2100 } 2430 }
2101 } 2431 }
2102#endif 2432#endif
2103 2433
2104 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2105 { 2435 {
2106 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2107 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2108 ev_io *w; 2438 ev_io *w;
2109 2439
2110 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
2111 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
2112 2442
2113 anfd->reify = 0; 2443 anfd->reify = 0;
2114 2444
2115 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2116 { 2446 {
2117 anfd->events = 0; 2447 anfd->events = 0;
2118 2448
2119 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)
2120 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
2125 2455
2126 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2127 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2128 } 2458 }
2129 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
2130 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2131} 2468}
2132 2469
2133/* something about the given fd changed */ 2470/* something about the given fd changed */
2134inline_size 2471inline_size
2135void 2472void
2136fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
2137{ 2474{
2138 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
2139 anfds [fd].reify |= flags; 2476 anfds [fd].reify = reify | flags;
2140 2477
2141 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
2142 { 2479 {
2143 ++fdchangecnt; 2480 ++fdchangecnt;
2144 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2145 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
2146 } 2483 }
2147} 2484}
2148 2485
2149/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2486/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
… …
2169 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
2170#endif 2507#endif
2171} 2508}
2172 2509
2173/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
2174noinline ecb_cold 2511ecb_noinline ecb_cold
2175static void 2512static void
2176fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
2177{ 2514{
2178 int fd; 2515 int fd;
2179 2516
… …
2182 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
2183 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
2184} 2521}
2185 2522
2186/* 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 */
2187noinline ecb_cold 2524ecb_noinline ecb_cold
2188static void 2525static void
2189fd_enomem (EV_P) 2526fd_enomem (EV_P)
2190{ 2527{
2191 int fd; 2528 int fd;
2192 2529
… …
2197 break; 2534 break;
2198 } 2535 }
2199} 2536}
2200 2537
2201/* 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 */
2202noinline 2539ecb_noinline
2203static void 2540static void
2204fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
2205{ 2542{
2206 int fd; 2543 int fd;
2207 2544
… …
2261 ev_tstamp minat; 2598 ev_tstamp minat;
2262 ANHE *minpos; 2599 ANHE *minpos;
2263 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2264 2601
2265 /* find minimum child */ 2602 /* find minimum child */
2266 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2267 { 2604 {
2268 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2269 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));
2270 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));
2271 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));
2272 } 2609 }
2273 else if (pos < E) 2610 else if (pos < E)
2274 { 2611 {
2275 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2276 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));
2277 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));
2278 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));
2279 } 2616 }
2280 else 2617 else
2281 break; 2618 break;
2282 2619
2283 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2291 2628
2292 heap [k] = he; 2629 heap [k] = he;
2293 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2294} 2631}
2295 2632
2296#else /* 4HEAP */ 2633#else /* not 4HEAP */
2297 2634
2298#define HEAP0 1 2635#define HEAP0 1
2299#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2300#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2301 2638
… …
2373 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2374} 2711}
2375 2712
2376/*****************************************************************************/ 2713/*****************************************************************************/
2377 2714
2378/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2379typedef struct 2716typedef struct
2380{ 2717{
2381 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2382#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2383 EV_P; 2720 EV_P;
… …
2389 2726
2390/*****************************************************************************/ 2727/*****************************************************************************/
2391 2728
2392#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2393 2730
2394noinline ecb_cold 2731ecb_noinline ecb_cold
2395static void 2732static void
2396evpipe_init (EV_P) 2733evpipe_init (EV_P)
2397{ 2734{
2398 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2399 { 2736 {
… …
2440inline_speed void 2777inline_speed void
2441evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2442{ 2779{
2443 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 */
2444 2781
2445 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2446 return; 2783 return;
2447 2784
2448 *flag = 1; 2785 *flag = 1;
2449 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 */
2450 2787
… …
2471#endif 2808#endif
2472 { 2809 {
2473#ifdef _WIN32 2810#ifdef _WIN32
2474 WSABUF buf; 2811 WSABUF buf;
2475 DWORD sent; 2812 DWORD sent;
2476 buf.buf = &buf; 2813 buf.buf = (char *)&buf;
2477 buf.len = 1; 2814 buf.len = 1;
2478 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2815 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2479#else 2816#else
2480 write (evpipe [1], &(evpipe [1]), 1); 2817 write (evpipe [1], &(evpipe [1]), 1);
2481#endif 2818#endif
… …
2527 sig_pending = 0; 2864 sig_pending = 0;
2528 2865
2529 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2530 2867
2531 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2532 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2533 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2534 } 2871 }
2535#endif 2872#endif
2536 2873
2537#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2553} 2890}
2554 2891
2555/*****************************************************************************/ 2892/*****************************************************************************/
2556 2893
2557void 2894void
2558ev_feed_signal (int signum) EV_THROW 2895ev_feed_signal (int signum) EV_NOEXCEPT
2559{ 2896{
2560#if EV_MULTIPLICITY 2897#if EV_MULTIPLICITY
2561 EV_P; 2898 EV_P;
2562 ECB_MEMORY_FENCE_ACQUIRE; 2899 ECB_MEMORY_FENCE_ACQUIRE;
2563 EV_A = signals [signum - 1].loop; 2900 EV_A = signals [signum - 1].loop;
… …
2578#endif 2915#endif
2579 2916
2580 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2581} 2918}
2582 2919
2583noinline 2920ecb_noinline
2584void 2921void
2585ev_feed_signal_event (EV_P_ int signum) EV_THROW 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2586{ 2923{
2587 WL w; 2924 WL w;
2588 2925
2589 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2590 return; 2927 return;
2591 2928
2592 --signum; 2929 --signum;
2593 2930
2594#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2595 /* 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 */
2596 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2597 2934
2598 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2599 return; 2936 return;
2600#endif 2937#endif
2601 2938
2602 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2603 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2687 3024
2688#endif 3025#endif
2689 3026
2690/*****************************************************************************/ 3027/*****************************************************************************/
2691 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
2692#if EV_USE_IOCP 3080#if EV_USE_IOCP
2693# include "ev_iocp.c" 3081# include "ev_iocp.c"
2694#endif 3082#endif
2695#if EV_USE_PORT 3083#if EV_USE_PORT
2696# include "ev_port.c" 3084# include "ev_port.c"
… …
2699# include "ev_kqueue.c" 3087# include "ev_kqueue.c"
2700#endif 3088#endif
2701#if EV_USE_EPOLL 3089#if EV_USE_EPOLL
2702# include "ev_epoll.c" 3090# include "ev_epoll.c"
2703#endif 3091#endif
3092#if EV_USE_LINUXAIO
3093# include "ev_linuxaio.c"
3094#endif
3095#if EV_USE_IOURING
3096# include "ev_iouring.c"
3097#endif
2704#if EV_USE_POLL 3098#if EV_USE_POLL
2705# include "ev_poll.c" 3099# include "ev_poll.c"
2706#endif 3100#endif
2707#if EV_USE_SELECT 3101#if EV_USE_SELECT
2708# include "ev_select.c" 3102# include "ev_select.c"
2709#endif 3103#endif
2710 3104
2711ecb_cold int 3105ecb_cold int
2712ev_version_major (void) EV_THROW 3106ev_version_major (void) EV_NOEXCEPT
2713{ 3107{
2714 return EV_VERSION_MAJOR; 3108 return EV_VERSION_MAJOR;
2715} 3109}
2716 3110
2717ecb_cold int 3111ecb_cold int
2718ev_version_minor (void) EV_THROW 3112ev_version_minor (void) EV_NOEXCEPT
2719{ 3113{
2720 return EV_VERSION_MINOR; 3114 return EV_VERSION_MINOR;
2721} 3115}
2722 3116
2723/* return true if we are running with elevated privileges and should ignore env variables */ 3117/* return true if we are running with elevated privileges and should ignore env variables */
… …
2732#endif 3126#endif
2733} 3127}
2734 3128
2735ecb_cold 3129ecb_cold
2736unsigned int 3130unsigned int
2737ev_supported_backends (void) EV_THROW 3131ev_supported_backends (void) EV_NOEXCEPT
2738{ 3132{
2739 unsigned int flags = 0; 3133 unsigned int flags = 0;
2740 3134
2741 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3135 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2742 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3136 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2743 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3137 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2744 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3138 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2745 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3139 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2746 3140 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3141 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3142
2747 return flags; 3143 return flags;
2748} 3144}
2749 3145
2750ecb_cold 3146ecb_cold
2751unsigned int 3147unsigned int
2752ev_recommended_backends (void) EV_THROW 3148ev_recommended_backends (void) EV_NOEXCEPT
2753{ 3149{
2754 unsigned int flags = ev_supported_backends (); 3150 unsigned int flags = ev_supported_backends ();
2755 3151
2756#ifndef __NetBSD__ 3152#ifndef __NetBSD__
2757 /* kqueue is borked on everything but netbsd apparently */ 3153 /* kqueue is borked on everything but netbsd apparently */
… …
2765#endif 3161#endif
2766#ifdef __FreeBSD__ 3162#ifdef __FreeBSD__
2767 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) */
2768#endif 3164#endif
2769 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
2770 return flags; 3175 return flags;
2771} 3176}
2772 3177
2773ecb_cold 3178ecb_cold
2774unsigned int 3179unsigned int
2775ev_embeddable_backends (void) EV_THROW 3180ev_embeddable_backends (void) EV_NOEXCEPT
2776{ 3181{
2777 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3182 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2778 3183
2779 /* 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 */
2780 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 */
2781 flags &= ~EVBACKEND_EPOLL; 3186 flags &= ~EVBACKEND_EPOLL;
2782 3187
3188 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3189
2783 return flags; 3190 return flags;
2784} 3191}
2785 3192
2786unsigned int 3193unsigned int
2787ev_backend (EV_P) EV_THROW 3194ev_backend (EV_P) EV_NOEXCEPT
2788{ 3195{
2789 return backend; 3196 return backend;
2790} 3197}
2791 3198
2792#if EV_FEATURE_API 3199#if EV_FEATURE_API
2793unsigned int 3200unsigned int
2794ev_iteration (EV_P) EV_THROW 3201ev_iteration (EV_P) EV_NOEXCEPT
2795{ 3202{
2796 return loop_count; 3203 return loop_count;
2797} 3204}
2798 3205
2799unsigned int 3206unsigned int
2800ev_depth (EV_P) EV_THROW 3207ev_depth (EV_P) EV_NOEXCEPT
2801{ 3208{
2802 return loop_depth; 3209 return loop_depth;
2803} 3210}
2804 3211
2805void 3212void
2806ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3213ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2807{ 3214{
2808 io_blocktime = interval; 3215 io_blocktime = interval;
2809} 3216}
2810 3217
2811void 3218void
2812ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3219ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2813{ 3220{
2814 timeout_blocktime = interval; 3221 timeout_blocktime = interval;
2815} 3222}
2816 3223
2817void 3224void
2818ev_set_userdata (EV_P_ void *data) EV_THROW 3225ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2819{ 3226{
2820 userdata = data; 3227 userdata = data;
2821} 3228}
2822 3229
2823void * 3230void *
2824ev_userdata (EV_P) EV_THROW 3231ev_userdata (EV_P) EV_NOEXCEPT
2825{ 3232{
2826 return userdata; 3233 return userdata;
2827} 3234}
2828 3235
2829void 3236void
2830ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3237ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2831{ 3238{
2832 invoke_cb = invoke_pending_cb; 3239 invoke_cb = invoke_pending_cb;
2833} 3240}
2834 3241
2835void 3242void
2836ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3243ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2837{ 3244{
2838 release_cb = release; 3245 release_cb = release;
2839 acquire_cb = acquire; 3246 acquire_cb = acquire;
2840} 3247}
2841#endif 3248#endif
2842 3249
2843/* initialise a loop structure, must be zero-initialised */ 3250/* initialise a loop structure, must be zero-initialised */
2844noinline ecb_cold 3251ecb_noinline ecb_cold
2845static void 3252static void
2846loop_init (EV_P_ unsigned int flags) EV_THROW 3253loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2847{ 3254{
2848 if (!backend) 3255 if (!backend)
2849 { 3256 {
2850 origflags = flags; 3257 origflags = flags;
2851 3258
… …
2904 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3311 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2905#endif 3312#endif
2906#if EV_USE_SIGNALFD 3313#if EV_USE_SIGNALFD
2907 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3314 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2908#endif 3315#endif
3316#if EV_USE_TIMERFD
3317 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3318#endif
2909 3319
2910 if (!(flags & EVBACKEND_MASK)) 3320 if (!(flags & EVBACKEND_MASK))
2911 flags |= ev_recommended_backends (); 3321 flags |= ev_recommended_backends ();
2912 3322
2913#if EV_USE_IOCP 3323#if EV_USE_IOCP
2914 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3324 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2915#endif 3325#endif
2916#if EV_USE_PORT 3326#if EV_USE_PORT
2917 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3327 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2918#endif 3328#endif
2919#if EV_USE_KQUEUE 3329#if EV_USE_KQUEUE
2920 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3330 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3331#endif
3332#if EV_USE_IOURING
3333 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3334#endif
3335#if EV_USE_LINUXAIO
3336 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2921#endif 3337#endif
2922#if EV_USE_EPOLL 3338#if EV_USE_EPOLL
2923 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3339 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2924#endif 3340#endif
2925#if EV_USE_POLL 3341#if EV_USE_POLL
2926 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3342 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2927#endif 3343#endif
2928#if EV_USE_SELECT 3344#if EV_USE_SELECT
2929 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3345 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2930#endif 3346#endif
2931 3347
2932 ev_prepare_init (&pending_w, pendingcb); 3348 ev_prepare_init (&pending_w, pendingcb);
2933 3349
2934#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3350#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2951 return; 3367 return;
2952#endif 3368#endif
2953 3369
2954#if EV_CLEANUP_ENABLE 3370#if EV_CLEANUP_ENABLE
2955 /* queue cleanup watchers (and execute them) */ 3371 /* queue cleanup watchers (and execute them) */
2956 if (expect_false (cleanupcnt)) 3372 if (ecb_expect_false (cleanupcnt))
2957 { 3373 {
2958 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3374 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2959 EV_INVOKE_PENDING; 3375 EV_INVOKE_PENDING;
2960 } 3376 }
2961#endif 3377#endif
… …
2980#if EV_USE_SIGNALFD 3396#if EV_USE_SIGNALFD
2981 if (ev_is_active (&sigfd_w)) 3397 if (ev_is_active (&sigfd_w))
2982 close (sigfd); 3398 close (sigfd);
2983#endif 3399#endif
2984 3400
3401#if EV_USE_TIMERFD
3402 if (ev_is_active (&timerfd_w))
3403 close (timerfd);
3404#endif
3405
2985#if EV_USE_INOTIFY 3406#if EV_USE_INOTIFY
2986 if (fs_fd >= 0) 3407 if (fs_fd >= 0)
2987 close (fs_fd); 3408 close (fs_fd);
2988#endif 3409#endif
2989 3410
2990 if (backend_fd >= 0) 3411 if (backend_fd >= 0)
2991 close (backend_fd); 3412 close (backend_fd);
2992 3413
2993#if EV_USE_IOCP 3414#if EV_USE_IOCP
2994 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3415 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2995#endif 3416#endif
2996#if EV_USE_PORT 3417#if EV_USE_PORT
2997 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3418 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2998#endif 3419#endif
2999#if EV_USE_KQUEUE 3420#if EV_USE_KQUEUE
3000 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3421 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3422#endif
3423#if EV_USE_IOURING
3424 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3425#endif
3426#if EV_USE_LINUXAIO
3427 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
3001#endif 3428#endif
3002#if EV_USE_EPOLL 3429#if EV_USE_EPOLL
3003 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3430 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
3004#endif 3431#endif
3005#if EV_USE_POLL 3432#if EV_USE_POLL
3006 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3433 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
3007#endif 3434#endif
3008#if EV_USE_SELECT 3435#if EV_USE_SELECT
3009 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3436 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
3010#endif 3437#endif
3011 3438
3012 for (i = NUMPRI; i--; ) 3439 for (i = NUMPRI; i--; )
3013 { 3440 {
3014 array_free (pending, [i]); 3441 array_free (pending, [i]);
… …
3056 3483
3057inline_size void 3484inline_size void
3058loop_fork (EV_P) 3485loop_fork (EV_P)
3059{ 3486{
3060#if EV_USE_PORT 3487#if EV_USE_PORT
3061 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3488 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3062#endif 3489#endif
3063#if EV_USE_KQUEUE 3490#if EV_USE_KQUEUE
3064 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3491 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3492#endif
3493#if EV_USE_IOURING
3494 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3495#endif
3496#if EV_USE_LINUXAIO
3497 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3065#endif 3498#endif
3066#if EV_USE_EPOLL 3499#if EV_USE_EPOLL
3067 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3500 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3068#endif 3501#endif
3069#if EV_USE_INOTIFY 3502#if EV_USE_INOTIFY
3070 infy_fork (EV_A); 3503 infy_fork (EV_A);
3071#endif 3504#endif
3072 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
3073#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3527 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3074 if (ev_is_active (&pipe_w) && postfork != 2) 3528 if (ev_is_active (&pipe_w))
3075 { 3529 {
3076 /* 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 */
3077 3531
3078 ev_ref (EV_A); 3532 ev_ref (EV_A);
3079 ev_io_stop (EV_A_ &pipe_w); 3533 ev_io_stop (EV_A_ &pipe_w);
3080 3534
3081 if (evpipe [0] >= 0) 3535 if (evpipe [0] >= 0)
3082 EV_WIN32_CLOSE_FD (evpipe [0]); 3536 EV_WIN32_CLOSE_FD (evpipe [0]);
3083 3537
3084 evpipe_init (EV_A); 3538 evpipe_init (EV_A);
3085 /* iterate over everything, in case we missed something before */ 3539 /* iterate over everything, in case we missed something before */
3086 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3540 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3541 }
3542 #endif
3087 } 3543 }
3088#endif
3089 3544
3090 postfork = 0; 3545 postfork = 0;
3091} 3546}
3092 3547
3093#if EV_MULTIPLICITY 3548#if EV_MULTIPLICITY
3094 3549
3095ecb_cold 3550ecb_cold
3096struct ev_loop * 3551struct ev_loop *
3097ev_loop_new (unsigned int flags) EV_THROW 3552ev_loop_new (unsigned int flags) EV_NOEXCEPT
3098{ 3553{
3099 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3554 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3100 3555
3101 memset (EV_A, 0, sizeof (struct ev_loop)); 3556 memset (EV_A, 0, sizeof (struct ev_loop));
3102 loop_init (EV_A_ flags); 3557 loop_init (EV_A_ flags);
… …
3109} 3564}
3110 3565
3111#endif /* multiplicity */ 3566#endif /* multiplicity */
3112 3567
3113#if EV_VERIFY 3568#if EV_VERIFY
3114noinline ecb_cold 3569ecb_noinline ecb_cold
3115static void 3570static void
3116verify_watcher (EV_P_ W w) 3571verify_watcher (EV_P_ W w)
3117{ 3572{
3118 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));
3119 3574
3120 if (w->pending) 3575 if (w->pending)
3121 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));
3122} 3577}
3123 3578
3124noinline ecb_cold 3579ecb_noinline ecb_cold
3125static void 3580static void
3126verify_heap (EV_P_ ANHE *heap, int N) 3581verify_heap (EV_P_ ANHE *heap, int N)
3127{ 3582{
3128 int i; 3583 int i;
3129 3584
… …
3135 3590
3136 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3591 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3137 } 3592 }
3138} 3593}
3139 3594
3140noinline ecb_cold 3595ecb_noinline ecb_cold
3141static void 3596static void
3142array_verify (EV_P_ W *ws, int cnt) 3597array_verify (EV_P_ W *ws, int cnt)
3143{ 3598{
3144 while (cnt--) 3599 while (cnt--)
3145 { 3600 {
… …
3149} 3604}
3150#endif 3605#endif
3151 3606
3152#if EV_FEATURE_API 3607#if EV_FEATURE_API
3153void ecb_cold 3608void ecb_cold
3154ev_verify (EV_P) EV_THROW 3609ev_verify (EV_P) EV_NOEXCEPT
3155{ 3610{
3156#if EV_VERIFY 3611#if EV_VERIFY
3157 int i; 3612 int i;
3158 WL w, w2; 3613 WL w, w2;
3159 3614
… …
3240ecb_cold 3695ecb_cold
3241struct ev_loop * 3696struct ev_loop *
3242#else 3697#else
3243int 3698int
3244#endif 3699#endif
3245ev_default_loop (unsigned int flags) EV_THROW 3700ev_default_loop (unsigned int flags) EV_NOEXCEPT
3246{ 3701{
3247 if (!ev_default_loop_ptr) 3702 if (!ev_default_loop_ptr)
3248 { 3703 {
3249#if EV_MULTIPLICITY 3704#if EV_MULTIPLICITY
3250 EV_P = ev_default_loop_ptr = &default_loop_struct; 3705 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3269 3724
3270 return ev_default_loop_ptr; 3725 return ev_default_loop_ptr;
3271} 3726}
3272 3727
3273void 3728void
3274ev_loop_fork (EV_P) EV_THROW 3729ev_loop_fork (EV_P) EV_NOEXCEPT
3275{ 3730{
3276 postfork = 1; 3731 postfork = 1;
3277} 3732}
3278 3733
3279/*****************************************************************************/ 3734/*****************************************************************************/
… …
3283{ 3738{
3284 EV_CB_INVOKE ((W)w, revents); 3739 EV_CB_INVOKE ((W)w, revents);
3285} 3740}
3286 3741
3287unsigned int 3742unsigned int
3288ev_pending_count (EV_P) EV_THROW 3743ev_pending_count (EV_P) EV_NOEXCEPT
3289{ 3744{
3290 int pri; 3745 int pri;
3291 unsigned int count = 0; 3746 unsigned int count = 0;
3292 3747
3293 for (pri = NUMPRI; pri--; ) 3748 for (pri = NUMPRI; pri--; )
3294 count += pendingcnt [pri]; 3749 count += pendingcnt [pri];
3295 3750
3296 return count; 3751 return count;
3297} 3752}
3298 3753
3299noinline 3754ecb_noinline
3300void 3755void
3301ev_invoke_pending (EV_P) 3756ev_invoke_pending (EV_P)
3302{ 3757{
3303 pendingpri = NUMPRI; 3758 pendingpri = NUMPRI;
3304 3759
3305 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3760 do
3306 { 3761 {
3307 --pendingpri; 3762 --pendingpri;
3308 3763
3764 /* pendingpri possibly gets modified in the inner loop */
3309 while (pendingcnt [pendingpri]) 3765 while (pendingcnt [pendingpri])
3310 { 3766 {
3311 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3767 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3312 3768
3313 p->w->pending = 0; 3769 p->w->pending = 0;
3314 EV_CB_INVOKE (p->w, p->events); 3770 EV_CB_INVOKE (p->w, p->events);
3315 EV_FREQUENT_CHECK; 3771 EV_FREQUENT_CHECK;
3316 } 3772 }
3317 } 3773 }
3774 while (pendingpri);
3318} 3775}
3319 3776
3320#if EV_IDLE_ENABLE 3777#if EV_IDLE_ENABLE
3321/* make idle watchers pending. this handles the "call-idle */ 3778/* make idle watchers pending. this handles the "call-idle */
3322/* only when higher priorities are idle" logic */ 3779/* only when higher priorities are idle" logic */
3323inline_size void 3780inline_size void
3324idle_reify (EV_P) 3781idle_reify (EV_P)
3325{ 3782{
3326 if (expect_false (idleall)) 3783 if (ecb_expect_false (idleall))
3327 { 3784 {
3328 int pri; 3785 int pri;
3329 3786
3330 for (pri = NUMPRI; pri--; ) 3787 for (pri = NUMPRI; pri--; )
3331 { 3788 {
… …
3361 { 3818 {
3362 ev_at (w) += w->repeat; 3819 ev_at (w) += w->repeat;
3363 if (ev_at (w) < mn_now) 3820 if (ev_at (w) < mn_now)
3364 ev_at (w) = mn_now; 3821 ev_at (w) = mn_now;
3365 3822
3366 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.)));
3367 3824
3368 ANHE_at_cache (timers [HEAP0]); 3825 ANHE_at_cache (timers [HEAP0]);
3369 downheap (timers, timercnt, HEAP0); 3826 downheap (timers, timercnt, HEAP0);
3370 } 3827 }
3371 else 3828 else
… …
3380 } 3837 }
3381} 3838}
3382 3839
3383#if EV_PERIODIC_ENABLE 3840#if EV_PERIODIC_ENABLE
3384 3841
3385noinline 3842ecb_noinline
3386static void 3843static void
3387periodic_recalc (EV_P_ ev_periodic *w) 3844periodic_recalc (EV_P_ ev_periodic *w)
3388{ 3845{
3389 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3846 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3390 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);
… …
3393 while (at <= ev_rt_now) 3850 while (at <= ev_rt_now)
3394 { 3851 {
3395 ev_tstamp nat = at + w->interval; 3852 ev_tstamp nat = at + w->interval;
3396 3853
3397 /* when resolution fails us, we use ev_rt_now */ 3854 /* when resolution fails us, we use ev_rt_now */
3398 if (expect_false (nat == at)) 3855 if (ecb_expect_false (nat == at))
3399 { 3856 {
3400 at = ev_rt_now; 3857 at = ev_rt_now;
3401 break; 3858 break;
3402 } 3859 }
3403 3860
… …
3449 } 3906 }
3450} 3907}
3451 3908
3452/* simply recalculate all periodics */ 3909/* simply recalculate all periodics */
3453/* 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? */
3454noinline ecb_cold 3911ecb_noinline ecb_cold
3455static void 3912static void
3456periodics_reschedule (EV_P) 3913periodics_reschedule (EV_P)
3457{ 3914{
3458 int i; 3915 int i;
3459 3916
… …
3473 reheap (periodics, periodiccnt); 3930 reheap (periodics, periodiccnt);
3474} 3931}
3475#endif 3932#endif
3476 3933
3477/* adjust all timers by a given offset */ 3934/* adjust all timers by a given offset */
3478noinline ecb_cold 3935ecb_noinline ecb_cold
3479static void 3936static void
3480timers_reschedule (EV_P_ ev_tstamp adjust) 3937timers_reschedule (EV_P_ ev_tstamp adjust)
3481{ 3938{
3482 int i; 3939 int i;
3483 3940
… …
3493/* also detect if there was a timejump, and act accordingly */ 3950/* also detect if there was a timejump, and act accordingly */
3494inline_speed void 3951inline_speed void
3495time_update (EV_P_ ev_tstamp max_block) 3952time_update (EV_P_ ev_tstamp max_block)
3496{ 3953{
3497#if EV_USE_MONOTONIC 3954#if EV_USE_MONOTONIC
3498 if (expect_true (have_monotonic)) 3955 if (ecb_expect_true (have_monotonic))
3499 { 3956 {
3500 int i; 3957 int i;
3501 ev_tstamp odiff = rtmn_diff; 3958 ev_tstamp odiff = rtmn_diff;
3502 3959
3503 mn_now = get_clock (); 3960 mn_now = get_clock ();
3504 3961
3505 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3962 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3506 /* interpolate in the meantime */ 3963 /* interpolate in the meantime */
3507 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)))
3508 { 3965 {
3509 ev_rt_now = rtmn_diff + mn_now; 3966 ev_rt_now = rtmn_diff + mn_now;
3510 return; 3967 return;
3511 } 3968 }
3512 3969
… …
3526 ev_tstamp diff; 3983 ev_tstamp diff;
3527 rtmn_diff = ev_rt_now - mn_now; 3984 rtmn_diff = ev_rt_now - mn_now;
3528 3985
3529 diff = odiff - rtmn_diff; 3986 diff = odiff - rtmn_diff;
3530 3987
3531 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)))
3532 return; /* all is well */ 3989 return; /* all is well */
3533 3990
3534 ev_rt_now = ev_time (); 3991 ev_rt_now = ev_time ();
3535 mn_now = get_clock (); 3992 mn_now = get_clock ();
3536 now_floor = mn_now; 3993 now_floor = mn_now;
… …
3545 else 4002 else
3546#endif 4003#endif
3547 { 4004 {
3548 ev_rt_now = ev_time (); 4005 ev_rt_now = ev_time ();
3549 4006
3550 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)))
3551 { 4008 {
3552 /* 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 */
3553 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4010 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3554#if EV_PERIODIC_ENABLE 4011#if EV_PERIODIC_ENABLE
3555 periodics_reschedule (EV_A); 4012 periodics_reschedule (EV_A);
… …
3578#if EV_VERIFY >= 2 4035#if EV_VERIFY >= 2
3579 ev_verify (EV_A); 4036 ev_verify (EV_A);
3580#endif 4037#endif
3581 4038
3582#ifndef _WIN32 4039#ifndef _WIN32
3583 if (expect_false (curpid)) /* penalise the forking check even more */ 4040 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3584 if (expect_false (getpid () != curpid)) 4041 if (ecb_expect_false (getpid () != curpid))
3585 { 4042 {
3586 curpid = getpid (); 4043 curpid = getpid ();
3587 postfork = 1; 4044 postfork = 1;
3588 } 4045 }
3589#endif 4046#endif
3590 4047
3591#if EV_FORK_ENABLE 4048#if EV_FORK_ENABLE
3592 /* we might have forked, so queue fork handlers */ 4049 /* we might have forked, so queue fork handlers */
3593 if (expect_false (postfork)) 4050 if (ecb_expect_false (postfork))
3594 if (forkcnt) 4051 if (forkcnt)
3595 { 4052 {
3596 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4053 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3597 EV_INVOKE_PENDING; 4054 EV_INVOKE_PENDING;
3598 } 4055 }
3599#endif 4056#endif
3600 4057
3601#if EV_PREPARE_ENABLE 4058#if EV_PREPARE_ENABLE
3602 /* queue prepare watchers (and execute them) */ 4059 /* queue prepare watchers (and execute them) */
3603 if (expect_false (preparecnt)) 4060 if (ecb_expect_false (preparecnt))
3604 { 4061 {
3605 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4062 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3606 EV_INVOKE_PENDING; 4063 EV_INVOKE_PENDING;
3607 } 4064 }
3608#endif 4065#endif
3609 4066
3610 if (expect_false (loop_done)) 4067 if (ecb_expect_false (loop_done))
3611 break; 4068 break;
3612 4069
3613 /* we might have forked, so reify kernel state if necessary */ 4070 /* we might have forked, so reify kernel state if necessary */
3614 if (expect_false (postfork)) 4071 if (ecb_expect_false (postfork))
3615 loop_fork (EV_A); 4072 loop_fork (EV_A);
3616 4073
3617 /* update fd-related kernel structures */ 4074 /* update fd-related kernel structures */
3618 fd_reify (EV_A); 4075 fd_reify (EV_A);
3619 4076
… …
3624 4081
3625 /* remember old timestamp for io_blocktime calculation */ 4082 /* remember old timestamp for io_blocktime calculation */
3626 ev_tstamp prev_mn_now = mn_now; 4083 ev_tstamp prev_mn_now = mn_now;
3627 4084
3628 /* update time to cancel out callback processing overhead */ 4085 /* update time to cancel out callback processing overhead */
3629 time_update (EV_A_ 1e100); 4086 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3630 4087
3631 /* from now on, we want a pipe-wake-up */ 4088 /* from now on, we want a pipe-wake-up */
3632 pipe_write_wanted = 1; 4089 pipe_write_wanted = 1;
3633 4090
3634 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 */
3635 4092
3636 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4093 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3637 { 4094 {
3638 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
3639 4108
3640 if (timercnt) 4109 if (timercnt)
3641 { 4110 {
3642 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4111 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3643 if (waittime > to) waittime = to; 4112 if (waittime > to) waittime = to;
… …
3650 if (waittime > to) waittime = to; 4119 if (waittime > to) waittime = to;
3651 } 4120 }
3652#endif 4121#endif
3653 4122
3654 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4123 /* don't let timeouts decrease the waittime below timeout_blocktime */
3655 if (expect_false (waittime < timeout_blocktime)) 4124 if (ecb_expect_false (waittime < timeout_blocktime))
3656 waittime = timeout_blocktime; 4125 waittime = timeout_blocktime;
3657 4126
3658 /* at this point, we NEED to wait, so we have to ensure */ 4127 /* now there are two more special cases left, either we have
3659 /* 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 */
3660 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.)
3661 waittime = backend_mintime; 4135 : backend_mintime;
3662 4136
3663 /* extra check because io_blocktime is commonly 0 */ 4137 /* extra check because io_blocktime is commonly 0 */
3664 if (expect_false (io_blocktime)) 4138 if (ecb_expect_false (io_blocktime))
3665 { 4139 {
3666 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4140 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3667 4141
3668 if (sleeptime > waittime - backend_mintime) 4142 if (sleeptime > waittime - backend_mintime)
3669 sleeptime = waittime - backend_mintime; 4143 sleeptime = waittime - backend_mintime;
3670 4144
3671 if (expect_true (sleeptime > 0.)) 4145 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3672 { 4146 {
3673 ev_sleep (sleeptime); 4147 ev_sleep (sleeptime);
3674 waittime -= sleeptime; 4148 waittime -= sleeptime;
3675 } 4149 }
3676 } 4150 }
… …
3690 { 4164 {
3691 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)));
3692 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4166 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3693 } 4167 }
3694 4168
3695
3696 /* update ev_rt_now, do magic */ 4169 /* update ev_rt_now, do magic */
3697 time_update (EV_A_ waittime + sleeptime); 4170 time_update (EV_A_ waittime + sleeptime);
3698 } 4171 }
3699 4172
3700 /* queue pending timers and reschedule them */ 4173 /* queue pending timers and reschedule them */
… …
3708 idle_reify (EV_A); 4181 idle_reify (EV_A);
3709#endif 4182#endif
3710 4183
3711#if EV_CHECK_ENABLE 4184#if EV_CHECK_ENABLE
3712 /* queue check watchers, to be executed first */ 4185 /* queue check watchers, to be executed first */
3713 if (expect_false (checkcnt)) 4186 if (ecb_expect_false (checkcnt))
3714 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4187 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3715#endif 4188#endif
3716 4189
3717 EV_INVOKE_PENDING; 4190 EV_INVOKE_PENDING;
3718 } 4191 }
3719 while (expect_true ( 4192 while (ecb_expect_true (
3720 activecnt 4193 activecnt
3721 && !loop_done 4194 && !loop_done
3722 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4195 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3723 )); 4196 ));
3724 4197
… …
3731 4204
3732 return activecnt; 4205 return activecnt;
3733} 4206}
3734 4207
3735void 4208void
3736ev_break (EV_P_ int how) EV_THROW 4209ev_break (EV_P_ int how) EV_NOEXCEPT
3737{ 4210{
3738 loop_done = how; 4211 loop_done = how;
3739} 4212}
3740 4213
3741void 4214void
3742ev_ref (EV_P) EV_THROW 4215ev_ref (EV_P) EV_NOEXCEPT
3743{ 4216{
3744 ++activecnt; 4217 ++activecnt;
3745} 4218}
3746 4219
3747void 4220void
3748ev_unref (EV_P) EV_THROW 4221ev_unref (EV_P) EV_NOEXCEPT
3749{ 4222{
3750 --activecnt; 4223 --activecnt;
3751} 4224}
3752 4225
3753void 4226void
3754ev_now_update (EV_P) EV_THROW 4227ev_now_update (EV_P) EV_NOEXCEPT
3755{ 4228{
3756 time_update (EV_A_ 1e100); 4229 time_update (EV_A_ EV_TSTAMP_HUGE);
3757} 4230}
3758 4231
3759void 4232void
3760ev_suspend (EV_P) EV_THROW 4233ev_suspend (EV_P) EV_NOEXCEPT
3761{ 4234{
3762 ev_now_update (EV_A); 4235 ev_now_update (EV_A);
3763} 4236}
3764 4237
3765void 4238void
3766ev_resume (EV_P) EV_THROW 4239ev_resume (EV_P) EV_NOEXCEPT
3767{ 4240{
3768 ev_tstamp mn_prev = mn_now; 4241 ev_tstamp mn_prev = mn_now;
3769 4242
3770 ev_now_update (EV_A); 4243 ev_now_update (EV_A);
3771 timers_reschedule (EV_A_ mn_now - mn_prev); 4244 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3788inline_size void 4261inline_size void
3789wlist_del (WL *head, WL elem) 4262wlist_del (WL *head, WL elem)
3790{ 4263{
3791 while (*head) 4264 while (*head)
3792 { 4265 {
3793 if (expect_true (*head == elem)) 4266 if (ecb_expect_true (*head == elem))
3794 { 4267 {
3795 *head = elem->next; 4268 *head = elem->next;
3796 break; 4269 break;
3797 } 4270 }
3798 4271
… …
3810 w->pending = 0; 4283 w->pending = 0;
3811 } 4284 }
3812} 4285}
3813 4286
3814int 4287int
3815ev_clear_pending (EV_P_ void *w) EV_THROW 4288ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3816{ 4289{
3817 W w_ = (W)w; 4290 W w_ = (W)w;
3818 int pending = w_->pending; 4291 int pending = w_->pending;
3819 4292
3820 if (expect_true (pending)) 4293 if (ecb_expect_true (pending))
3821 { 4294 {
3822 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4295 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3823 p->w = (W)&pending_w; 4296 p->w = (W)&pending_w;
3824 w_->pending = 0; 4297 w_->pending = 0;
3825 return p->events; 4298 return p->events;
… …
3852 w->active = 0; 4325 w->active = 0;
3853} 4326}
3854 4327
3855/*****************************************************************************/ 4328/*****************************************************************************/
3856 4329
3857noinline 4330ecb_noinline
3858void 4331void
3859ev_io_start (EV_P_ ev_io *w) EV_THROW 4332ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3860{ 4333{
3861 int fd = w->fd; 4334 int fd = w->fd;
3862 4335
3863 if (expect_false (ev_is_active (w))) 4336 if (ecb_expect_false (ev_is_active (w)))
3864 return; 4337 return;
3865 4338
3866 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4339 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3867 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))));
3868 4341
4342#if EV_VERIFY >= 2
4343 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4344#endif
3869 EV_FREQUENT_CHECK; 4345 EV_FREQUENT_CHECK;
3870 4346
3871 ev_start (EV_A_ (W)w, 1); 4347 ev_start (EV_A_ (W)w, 1);
3872 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4348 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3873 wlist_add (&anfds[fd].head, (WL)w); 4349 wlist_add (&anfds[fd].head, (WL)w);
3874 4350
3875 /* common bug, apparently */ 4351 /* common bug, apparently */
3876 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4352 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3877 4353
… …
3879 w->events &= ~EV__IOFDSET; 4355 w->events &= ~EV__IOFDSET;
3880 4356
3881 EV_FREQUENT_CHECK; 4357 EV_FREQUENT_CHECK;
3882} 4358}
3883 4359
3884noinline 4360ecb_noinline
3885void 4361void
3886ev_io_stop (EV_P_ ev_io *w) EV_THROW 4362ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3887{ 4363{
3888 clear_pending (EV_A_ (W)w); 4364 clear_pending (EV_A_ (W)w);
3889 if (expect_false (!ev_is_active (w))) 4365 if (ecb_expect_false (!ev_is_active (w)))
3890 return; 4366 return;
3891 4367
3892 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));
3893 4369
4370#if EV_VERIFY >= 2
4371 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4372#endif
3894 EV_FREQUENT_CHECK; 4373 EV_FREQUENT_CHECK;
3895 4374
3896 wlist_del (&anfds[w->fd].head, (WL)w); 4375 wlist_del (&anfds[w->fd].head, (WL)w);
3897 ev_stop (EV_A_ (W)w); 4376 ev_stop (EV_A_ (W)w);
3898 4377
3899 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4378 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3900 4379
3901 EV_FREQUENT_CHECK; 4380 EV_FREQUENT_CHECK;
3902} 4381}
3903 4382
3904noinline 4383ecb_noinline
3905void 4384void
3906ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4385ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3907{ 4386{
3908 if (expect_false (ev_is_active (w))) 4387 if (ecb_expect_false (ev_is_active (w)))
3909 return; 4388 return;
3910 4389
3911 ev_at (w) += mn_now; 4390 ev_at (w) += mn_now;
3912 4391
3913 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.));
3914 4393
3915 EV_FREQUENT_CHECK; 4394 EV_FREQUENT_CHECK;
3916 4395
3917 ++timercnt; 4396 ++timercnt;
3918 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4397 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3919 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4398 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3920 ANHE_w (timers [ev_active (w)]) = (WT)w; 4399 ANHE_w (timers [ev_active (w)]) = (WT)w;
3921 ANHE_at_cache (timers [ev_active (w)]); 4400 ANHE_at_cache (timers [ev_active (w)]);
3922 upheap (timers, ev_active (w)); 4401 upheap (timers, ev_active (w));
3923 4402
3924 EV_FREQUENT_CHECK; 4403 EV_FREQUENT_CHECK;
3925 4404
3926 /*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));*/
3927} 4406}
3928 4407
3929noinline 4408ecb_noinline
3930void 4409void
3931ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4410ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3932{ 4411{
3933 clear_pending (EV_A_ (W)w); 4412 clear_pending (EV_A_ (W)w);
3934 if (expect_false (!ev_is_active (w))) 4413 if (ecb_expect_false (!ev_is_active (w)))
3935 return; 4414 return;
3936 4415
3937 EV_FREQUENT_CHECK; 4416 EV_FREQUENT_CHECK;
3938 4417
3939 { 4418 {
… …
3941 4420
3942 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));
3943 4422
3944 --timercnt; 4423 --timercnt;
3945 4424
3946 if (expect_true (active < timercnt + HEAP0)) 4425 if (ecb_expect_true (active < timercnt + HEAP0))
3947 { 4426 {
3948 timers [active] = timers [timercnt + HEAP0]; 4427 timers [active] = timers [timercnt + HEAP0];
3949 adjustheap (timers, timercnt, active); 4428 adjustheap (timers, timercnt, active);
3950 } 4429 }
3951 } 4430 }
… …
3955 ev_stop (EV_A_ (W)w); 4434 ev_stop (EV_A_ (W)w);
3956 4435
3957 EV_FREQUENT_CHECK; 4436 EV_FREQUENT_CHECK;
3958} 4437}
3959 4438
3960noinline 4439ecb_noinline
3961void 4440void
3962ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4441ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3963{ 4442{
3964 EV_FREQUENT_CHECK; 4443 EV_FREQUENT_CHECK;
3965 4444
3966 clear_pending (EV_A_ (W)w); 4445 clear_pending (EV_A_ (W)w);
3967 4446
… …
3984 4463
3985 EV_FREQUENT_CHECK; 4464 EV_FREQUENT_CHECK;
3986} 4465}
3987 4466
3988ev_tstamp 4467ev_tstamp
3989ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4468ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3990{ 4469{
3991 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.));
3992} 4471}
3993 4472
3994#if EV_PERIODIC_ENABLE 4473#if EV_PERIODIC_ENABLE
3995noinline 4474ecb_noinline
3996void 4475void
3997ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4476ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3998{ 4477{
3999 if (expect_false (ev_is_active (w))) 4478 if (ecb_expect_false (ev_is_active (w)))
4000 return; 4479 return;
4480
4481#if EV_USE_TIMERFD
4482 if (timerfd == -2)
4483 evtimerfd_init (EV_A);
4484#endif
4001 4485
4002 if (w->reschedule_cb) 4486 if (w->reschedule_cb)
4003 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4487 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
4004 else if (w->interval) 4488 else if (w->interval)
4005 { 4489 {
… …
4011 4495
4012 EV_FREQUENT_CHECK; 4496 EV_FREQUENT_CHECK;
4013 4497
4014 ++periodiccnt; 4498 ++periodiccnt;
4015 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4499 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
4016 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4500 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
4017 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4501 ANHE_w (periodics [ev_active (w)]) = (WT)w;
4018 ANHE_at_cache (periodics [ev_active (w)]); 4502 ANHE_at_cache (periodics [ev_active (w)]);
4019 upheap (periodics, ev_active (w)); 4503 upheap (periodics, ev_active (w));
4020 4504
4021 EV_FREQUENT_CHECK; 4505 EV_FREQUENT_CHECK;
4022 4506
4023 /*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));*/
4024} 4508}
4025 4509
4026noinline 4510ecb_noinline
4027void 4511void
4028ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4512ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
4029{ 4513{
4030 clear_pending (EV_A_ (W)w); 4514 clear_pending (EV_A_ (W)w);
4031 if (expect_false (!ev_is_active (w))) 4515 if (ecb_expect_false (!ev_is_active (w)))
4032 return; 4516 return;
4033 4517
4034 EV_FREQUENT_CHECK; 4518 EV_FREQUENT_CHECK;
4035 4519
4036 { 4520 {
… …
4038 4522
4039 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));
4040 4524
4041 --periodiccnt; 4525 --periodiccnt;
4042 4526
4043 if (expect_true (active < periodiccnt + HEAP0)) 4527 if (ecb_expect_true (active < periodiccnt + HEAP0))
4044 { 4528 {
4045 periodics [active] = periodics [periodiccnt + HEAP0]; 4529 periodics [active] = periodics [periodiccnt + HEAP0];
4046 adjustheap (periodics, periodiccnt, active); 4530 adjustheap (periodics, periodiccnt, active);
4047 } 4531 }
4048 } 4532 }
… …
4050 ev_stop (EV_A_ (W)w); 4534 ev_stop (EV_A_ (W)w);
4051 4535
4052 EV_FREQUENT_CHECK; 4536 EV_FREQUENT_CHECK;
4053} 4537}
4054 4538
4055noinline 4539ecb_noinline
4056void 4540void
4057ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4541ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4058{ 4542{
4059 /* TODO: use adjustheap and recalculation */ 4543 /* TODO: use adjustheap and recalculation */
4060 ev_periodic_stop (EV_A_ w); 4544 ev_periodic_stop (EV_A_ w);
4061 ev_periodic_start (EV_A_ w); 4545 ev_periodic_start (EV_A_ w);
4062} 4546}
… …
4066# define SA_RESTART 0 4550# define SA_RESTART 0
4067#endif 4551#endif
4068 4552
4069#if EV_SIGNAL_ENABLE 4553#if EV_SIGNAL_ENABLE
4070 4554
4071noinline 4555ecb_noinline
4072void 4556void
4073ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4557ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4074{ 4558{
4075 if (expect_false (ev_is_active (w))) 4559 if (ecb_expect_false (ev_is_active (w)))
4076 return; 4560 return;
4077 4561
4078 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));
4079 4563
4080#if EV_MULTIPLICITY 4564#if EV_MULTIPLICITY
… …
4149 } 4633 }
4150 4634
4151 EV_FREQUENT_CHECK; 4635 EV_FREQUENT_CHECK;
4152} 4636}
4153 4637
4154noinline 4638ecb_noinline
4155void 4639void
4156ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4640ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4157{ 4641{
4158 clear_pending (EV_A_ (W)w); 4642 clear_pending (EV_A_ (W)w);
4159 if (expect_false (!ev_is_active (w))) 4643 if (ecb_expect_false (!ev_is_active (w)))
4160 return; 4644 return;
4161 4645
4162 EV_FREQUENT_CHECK; 4646 EV_FREQUENT_CHECK;
4163 4647
4164 wlist_del (&signals [w->signum - 1].head, (WL)w); 4648 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4192#endif 4676#endif
4193 4677
4194#if EV_CHILD_ENABLE 4678#if EV_CHILD_ENABLE
4195 4679
4196void 4680void
4197ev_child_start (EV_P_ ev_child *w) EV_THROW 4681ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4198{ 4682{
4199#if EV_MULTIPLICITY 4683#if EV_MULTIPLICITY
4200 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));
4201#endif 4685#endif
4202 if (expect_false (ev_is_active (w))) 4686 if (ecb_expect_false (ev_is_active (w)))
4203 return; 4687 return;
4204 4688
4205 EV_FREQUENT_CHECK; 4689 EV_FREQUENT_CHECK;
4206 4690
4207 ev_start (EV_A_ (W)w, 1); 4691 ev_start (EV_A_ (W)w, 1);
… …
4209 4693
4210 EV_FREQUENT_CHECK; 4694 EV_FREQUENT_CHECK;
4211} 4695}
4212 4696
4213void 4697void
4214ev_child_stop (EV_P_ ev_child *w) EV_THROW 4698ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4215{ 4699{
4216 clear_pending (EV_A_ (W)w); 4700 clear_pending (EV_A_ (W)w);
4217 if (expect_false (!ev_is_active (w))) 4701 if (ecb_expect_false (!ev_is_active (w)))
4218 return; 4702 return;
4219 4703
4220 EV_FREQUENT_CHECK; 4704 EV_FREQUENT_CHECK;
4221 4705
4222 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4706 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4236 4720
4237#define DEF_STAT_INTERVAL 5.0074891 4721#define DEF_STAT_INTERVAL 5.0074891
4238#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4722#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4239#define MIN_STAT_INTERVAL 0.1074891 4723#define MIN_STAT_INTERVAL 0.1074891
4240 4724
4241noinline 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);
4242 4726
4243#if EV_USE_INOTIFY 4727#if EV_USE_INOTIFY
4244 4728
4245/* 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 */
4246# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4730# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4247 4731
4248noinline 4732ecb_noinline
4249static void 4733static void
4250infy_add (EV_P_ ev_stat *w) 4734infy_add (EV_P_ ev_stat *w)
4251{ 4735{
4252 w->wd = inotify_add_watch (fs_fd, w->path, 4736 w->wd = inotify_add_watch (fs_fd, w->path,
4253 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4737 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
… …
4318 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4802 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4319 ev_timer_again (EV_A_ &w->timer); 4803 ev_timer_again (EV_A_ &w->timer);
4320 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4804 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4321} 4805}
4322 4806
4323noinline 4807ecb_noinline
4324static void 4808static void
4325infy_del (EV_P_ ev_stat *w) 4809infy_del (EV_P_ ev_stat *w)
4326{ 4810{
4327 int slot; 4811 int slot;
4328 int wd = w->wd; 4812 int wd = w->wd;
… …
4336 4820
4337 /* remove this watcher, if others are watching it, they will rearm */ 4821 /* remove this watcher, if others are watching it, they will rearm */
4338 inotify_rm_watch (fs_fd, wd); 4822 inotify_rm_watch (fs_fd, wd);
4339} 4823}
4340 4824
4341noinline 4825ecb_noinline
4342static void 4826static void
4343infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4827infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4344{ 4828{
4345 if (slot < 0) 4829 if (slot < 0)
4346 /* overflow, need to check for all hash slots */ 4830 /* overflow, need to check for all hash slots */
… …
4484#else 4968#else
4485# define EV_LSTAT(p,b) lstat (p, b) 4969# define EV_LSTAT(p,b) lstat (p, b)
4486#endif 4970#endif
4487 4971
4488void 4972void
4489ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4973ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4490{ 4974{
4491 if (lstat (w->path, &w->attr) < 0) 4975 if (lstat (w->path, &w->attr) < 0)
4492 w->attr.st_nlink = 0; 4976 w->attr.st_nlink = 0;
4493 else if (!w->attr.st_nlink) 4977 else if (!w->attr.st_nlink)
4494 w->attr.st_nlink = 1; 4978 w->attr.st_nlink = 1;
4495} 4979}
4496 4980
4497noinline 4981ecb_noinline
4498static void 4982static void
4499stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4983stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4500{ 4984{
4501 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4985 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4502 4986
… …
4534 ev_feed_event (EV_A_ w, EV_STAT); 5018 ev_feed_event (EV_A_ w, EV_STAT);
4535 } 5019 }
4536} 5020}
4537 5021
4538void 5022void
4539ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5023ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4540{ 5024{
4541 if (expect_false (ev_is_active (w))) 5025 if (ecb_expect_false (ev_is_active (w)))
4542 return; 5026 return;
4543 5027
4544 ev_stat_stat (EV_A_ w); 5028 ev_stat_stat (EV_A_ w);
4545 5029
4546 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5030 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4565 5049
4566 EV_FREQUENT_CHECK; 5050 EV_FREQUENT_CHECK;
4567} 5051}
4568 5052
4569void 5053void
4570ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5054ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4571{ 5055{
4572 clear_pending (EV_A_ (W)w); 5056 clear_pending (EV_A_ (W)w);
4573 if (expect_false (!ev_is_active (w))) 5057 if (ecb_expect_false (!ev_is_active (w)))
4574 return; 5058 return;
4575 5059
4576 EV_FREQUENT_CHECK; 5060 EV_FREQUENT_CHECK;
4577 5061
4578#if EV_USE_INOTIFY 5062#if EV_USE_INOTIFY
… …
4591} 5075}
4592#endif 5076#endif
4593 5077
4594#if EV_IDLE_ENABLE 5078#if EV_IDLE_ENABLE
4595void 5079void
4596ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5080ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4597{ 5081{
4598 if (expect_false (ev_is_active (w))) 5082 if (ecb_expect_false (ev_is_active (w)))
4599 return; 5083 return;
4600 5084
4601 pri_adjust (EV_A_ (W)w); 5085 pri_adjust (EV_A_ (W)w);
4602 5086
4603 EV_FREQUENT_CHECK; 5087 EV_FREQUENT_CHECK;
… …
4606 int active = ++idlecnt [ABSPRI (w)]; 5090 int active = ++idlecnt [ABSPRI (w)];
4607 5091
4608 ++idleall; 5092 ++idleall;
4609 ev_start (EV_A_ (W)w, active); 5093 ev_start (EV_A_ (W)w, active);
4610 5094
4611 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5095 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4612 idles [ABSPRI (w)][active - 1] = w; 5096 idles [ABSPRI (w)][active - 1] = w;
4613 } 5097 }
4614 5098
4615 EV_FREQUENT_CHECK; 5099 EV_FREQUENT_CHECK;
4616} 5100}
4617 5101
4618void 5102void
4619ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5103ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4620{ 5104{
4621 clear_pending (EV_A_ (W)w); 5105 clear_pending (EV_A_ (W)w);
4622 if (expect_false (!ev_is_active (w))) 5106 if (ecb_expect_false (!ev_is_active (w)))
4623 return; 5107 return;
4624 5108
4625 EV_FREQUENT_CHECK; 5109 EV_FREQUENT_CHECK;
4626 5110
4627 { 5111 {
… …
4638} 5122}
4639#endif 5123#endif
4640 5124
4641#if EV_PREPARE_ENABLE 5125#if EV_PREPARE_ENABLE
4642void 5126void
4643ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5127ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4644{ 5128{
4645 if (expect_false (ev_is_active (w))) 5129 if (ecb_expect_false (ev_is_active (w)))
4646 return; 5130 return;
4647 5131
4648 EV_FREQUENT_CHECK; 5132 EV_FREQUENT_CHECK;
4649 5133
4650 ev_start (EV_A_ (W)w, ++preparecnt); 5134 ev_start (EV_A_ (W)w, ++preparecnt);
4651 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5135 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4652 prepares [preparecnt - 1] = w; 5136 prepares [preparecnt - 1] = w;
4653 5137
4654 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4655} 5139}
4656 5140
4657void 5141void
4658ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5142ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4659{ 5143{
4660 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4661 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4662 return; 5146 return;
4663 5147
4664 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4665 5149
4666 { 5150 {
… …
4676} 5160}
4677#endif 5161#endif
4678 5162
4679#if EV_CHECK_ENABLE 5163#if EV_CHECK_ENABLE
4680void 5164void
4681ev_check_start (EV_P_ ev_check *w) EV_THROW 5165ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4682{ 5166{
4683 if (expect_false (ev_is_active (w))) 5167 if (ecb_expect_false (ev_is_active (w)))
4684 return; 5168 return;
4685 5169
4686 EV_FREQUENT_CHECK; 5170 EV_FREQUENT_CHECK;
4687 5171
4688 ev_start (EV_A_ (W)w, ++checkcnt); 5172 ev_start (EV_A_ (W)w, ++checkcnt);
4689 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5173 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4690 checks [checkcnt - 1] = w; 5174 checks [checkcnt - 1] = w;
4691 5175
4692 EV_FREQUENT_CHECK; 5176 EV_FREQUENT_CHECK;
4693} 5177}
4694 5178
4695void 5179void
4696ev_check_stop (EV_P_ ev_check *w) EV_THROW 5180ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4697{ 5181{
4698 clear_pending (EV_A_ (W)w); 5182 clear_pending (EV_A_ (W)w);
4699 if (expect_false (!ev_is_active (w))) 5183 if (ecb_expect_false (!ev_is_active (w)))
4700 return; 5184 return;
4701 5185
4702 EV_FREQUENT_CHECK; 5186 EV_FREQUENT_CHECK;
4703 5187
4704 { 5188 {
… …
4713 EV_FREQUENT_CHECK; 5197 EV_FREQUENT_CHECK;
4714} 5198}
4715#endif 5199#endif
4716 5200
4717#if EV_EMBED_ENABLE 5201#if EV_EMBED_ENABLE
4718noinline 5202ecb_noinline
4719void 5203void
4720ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5204ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4721{ 5205{
4722 ev_run (w->other, EVRUN_NOWAIT); 5206 ev_run (w->other, EVRUN_NOWAIT);
4723} 5207}
4724 5208
4725static void 5209static void
… …
4747 ev_run (EV_A_ EVRUN_NOWAIT); 5231 ev_run (EV_A_ EVRUN_NOWAIT);
4748 } 5232 }
4749 } 5233 }
4750} 5234}
4751 5235
5236#if EV_FORK_ENABLE
4752static void 5237static void
4753embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5238embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4754{ 5239{
4755 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));
4756 5241
… …
4763 ev_run (EV_A_ EVRUN_NOWAIT); 5248 ev_run (EV_A_ EVRUN_NOWAIT);
4764 } 5249 }
4765 5250
4766 ev_embed_start (EV_A_ w); 5251 ev_embed_start (EV_A_ w);
4767} 5252}
5253#endif
4768 5254
4769#if 0 5255#if 0
4770static void 5256static void
4771embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5257embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4772{ 5258{
4773 ev_idle_stop (EV_A_ idle); 5259 ev_idle_stop (EV_A_ idle);
4774} 5260}
4775#endif 5261#endif
4776 5262
4777void 5263void
4778ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5264ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4779{ 5265{
4780 if (expect_false (ev_is_active (w))) 5266 if (ecb_expect_false (ev_is_active (w)))
4781 return; 5267 return;
4782 5268
4783 { 5269 {
4784 EV_P = w->other; 5270 EV_P = w->other;
4785 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 ()));
… …
4793 5279
4794 ev_prepare_init (&w->prepare, embed_prepare_cb); 5280 ev_prepare_init (&w->prepare, embed_prepare_cb);
4795 ev_set_priority (&w->prepare, EV_MINPRI); 5281 ev_set_priority (&w->prepare, EV_MINPRI);
4796 ev_prepare_start (EV_A_ &w->prepare); 5282 ev_prepare_start (EV_A_ &w->prepare);
4797 5283
5284#if EV_FORK_ENABLE
4798 ev_fork_init (&w->fork, embed_fork_cb); 5285 ev_fork_init (&w->fork, embed_fork_cb);
4799 ev_fork_start (EV_A_ &w->fork); 5286 ev_fork_start (EV_A_ &w->fork);
5287#endif
4800 5288
4801 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5289 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4802 5290
4803 ev_start (EV_A_ (W)w, 1); 5291 ev_start (EV_A_ (W)w, 1);
4804 5292
4805 EV_FREQUENT_CHECK; 5293 EV_FREQUENT_CHECK;
4806} 5294}
4807 5295
4808void 5296void
4809ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5297ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4810{ 5298{
4811 clear_pending (EV_A_ (W)w); 5299 clear_pending (EV_A_ (W)w);
4812 if (expect_false (!ev_is_active (w))) 5300 if (ecb_expect_false (!ev_is_active (w)))
4813 return; 5301 return;
4814 5302
4815 EV_FREQUENT_CHECK; 5303 EV_FREQUENT_CHECK;
4816 5304
4817 ev_io_stop (EV_A_ &w->io); 5305 ev_io_stop (EV_A_ &w->io);
4818 ev_prepare_stop (EV_A_ &w->prepare); 5306 ev_prepare_stop (EV_A_ &w->prepare);
5307#if EV_FORK_ENABLE
4819 ev_fork_stop (EV_A_ &w->fork); 5308 ev_fork_stop (EV_A_ &w->fork);
5309#endif
4820 5310
4821 ev_stop (EV_A_ (W)w); 5311 ev_stop (EV_A_ (W)w);
4822 5312
4823 EV_FREQUENT_CHECK; 5313 EV_FREQUENT_CHECK;
4824} 5314}
4825#endif 5315#endif
4826 5316
4827#if EV_FORK_ENABLE 5317#if EV_FORK_ENABLE
4828void 5318void
4829ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5319ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4830{ 5320{
4831 if (expect_false (ev_is_active (w))) 5321 if (ecb_expect_false (ev_is_active (w)))
4832 return; 5322 return;
4833 5323
4834 EV_FREQUENT_CHECK; 5324 EV_FREQUENT_CHECK;
4835 5325
4836 ev_start (EV_A_ (W)w, ++forkcnt); 5326 ev_start (EV_A_ (W)w, ++forkcnt);
4837 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5327 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4838 forks [forkcnt - 1] = w; 5328 forks [forkcnt - 1] = w;
4839 5329
4840 EV_FREQUENT_CHECK; 5330 EV_FREQUENT_CHECK;
4841} 5331}
4842 5332
4843void 5333void
4844ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5334ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4845{ 5335{
4846 clear_pending (EV_A_ (W)w); 5336 clear_pending (EV_A_ (W)w);
4847 if (expect_false (!ev_is_active (w))) 5337 if (ecb_expect_false (!ev_is_active (w)))
4848 return; 5338 return;
4849 5339
4850 EV_FREQUENT_CHECK; 5340 EV_FREQUENT_CHECK;
4851 5341
4852 { 5342 {
… …
4862} 5352}
4863#endif 5353#endif
4864 5354
4865#if EV_CLEANUP_ENABLE 5355#if EV_CLEANUP_ENABLE
4866void 5356void
4867ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5357ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4868{ 5358{
4869 if (expect_false (ev_is_active (w))) 5359 if (ecb_expect_false (ev_is_active (w)))
4870 return; 5360 return;
4871 5361
4872 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4873 5363
4874 ev_start (EV_A_ (W)w, ++cleanupcnt); 5364 ev_start (EV_A_ (W)w, ++cleanupcnt);
4875 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5365 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4876 cleanups [cleanupcnt - 1] = w; 5366 cleanups [cleanupcnt - 1] = w;
4877 5367
4878 /* cleanup watchers should never keep a refcount on the loop */ 5368 /* cleanup watchers should never keep a refcount on the loop */
4879 ev_unref (EV_A); 5369 ev_unref (EV_A);
4880 EV_FREQUENT_CHECK; 5370 EV_FREQUENT_CHECK;
4881} 5371}
4882 5372
4883void 5373void
4884ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5374ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4885{ 5375{
4886 clear_pending (EV_A_ (W)w); 5376 clear_pending (EV_A_ (W)w);
4887 if (expect_false (!ev_is_active (w))) 5377 if (ecb_expect_false (!ev_is_active (w)))
4888 return; 5378 return;
4889 5379
4890 EV_FREQUENT_CHECK; 5380 EV_FREQUENT_CHECK;
4891 ev_ref (EV_A); 5381 ev_ref (EV_A);
4892 5382
… …
4903} 5393}
4904#endif 5394#endif
4905 5395
4906#if EV_ASYNC_ENABLE 5396#if EV_ASYNC_ENABLE
4907void 5397void
4908ev_async_start (EV_P_ ev_async *w) EV_THROW 5398ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4909{ 5399{
4910 if (expect_false (ev_is_active (w))) 5400 if (ecb_expect_false (ev_is_active (w)))
4911 return; 5401 return;
4912 5402
4913 w->sent = 0; 5403 w->sent = 0;
4914 5404
4915 evpipe_init (EV_A); 5405 evpipe_init (EV_A);
4916 5406
4917 EV_FREQUENT_CHECK; 5407 EV_FREQUENT_CHECK;
4918 5408
4919 ev_start (EV_A_ (W)w, ++asynccnt); 5409 ev_start (EV_A_ (W)w, ++asynccnt);
4920 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5410 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4921 asyncs [asynccnt - 1] = w; 5411 asyncs [asynccnt - 1] = w;
4922 5412
4923 EV_FREQUENT_CHECK; 5413 EV_FREQUENT_CHECK;
4924} 5414}
4925 5415
4926void 5416void
4927ev_async_stop (EV_P_ ev_async *w) EV_THROW 5417ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4928{ 5418{
4929 clear_pending (EV_A_ (W)w); 5419 clear_pending (EV_A_ (W)w);
4930 if (expect_false (!ev_is_active (w))) 5420 if (ecb_expect_false (!ev_is_active (w)))
4931 return; 5421 return;
4932 5422
4933 EV_FREQUENT_CHECK; 5423 EV_FREQUENT_CHECK;
4934 5424
4935 { 5425 {
… …
4943 5433
4944 EV_FREQUENT_CHECK; 5434 EV_FREQUENT_CHECK;
4945} 5435}
4946 5436
4947void 5437void
4948ev_async_send (EV_P_ ev_async *w) EV_THROW 5438ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4949{ 5439{
4950 w->sent = 1; 5440 w->sent = 1;
4951 evpipe_write (EV_A_ &async_pending); 5441 evpipe_write (EV_A_ &async_pending);
4952} 5442}
4953#endif 5443#endif
… …
4990 5480
4991 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5481 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4992} 5482}
4993 5483
4994void 5484void
4995ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5485ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4996{ 5486{
4997 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5487 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4998
4999 if (expect_false (!once))
5000 {
5001 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
5002 return;
5003 }
5004 5488
5005 once->cb = cb; 5489 once->cb = cb;
5006 once->arg = arg; 5490 once->arg = arg;
5007 5491
5008 ev_init (&once->io, once_cb_io); 5492 ev_init (&once->io, once_cb_io);
… …
5023/*****************************************************************************/ 5507/*****************************************************************************/
5024 5508
5025#if EV_WALK_ENABLE 5509#if EV_WALK_ENABLE
5026ecb_cold 5510ecb_cold
5027void 5511void
5028ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5512ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
5029{ 5513{
5030 int i, j; 5514 int i, j;
5031 ev_watcher_list *wl, *wn; 5515 ev_watcher_list *wl, *wn;
5032 5516
5033 if (types & (EV_IO | EV_EMBED)) 5517 if (types & (EV_IO | EV_EMBED))

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