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Comparing libev/ev.c (file contents):
Revision 1.479 by root, Sun Dec 20 01:31:17 2015 UTC vs.
Revision 1.523 by root, Tue Jan 21 23:52:35 2020 UTC

1/* 1/*
2 * libev event processing core, watcher management 2 * libev event processing core, watcher management
3 * 3 *
4 * Copyright (c) 2007,2008,2009,2010,2011,2012,2013 Marc Alexander Lehmann <libev@schmorp.de> 4 * Copyright (c) 2007-2019 Marc Alexander Lehmann <libev@schmorp.de>
5 * All rights reserved. 5 * All rights reserved.
6 * 6 *
7 * Redistribution and use in source and binary forms, with or without modifica- 7 * Redistribution and use in source and binary forms, with or without modifica-
8 * tion, are permitted provided that the following conditions are met: 8 * tion, are permitted provided that the following conditions are met:
9 * 9 *
… …
115# else 115# else
116# undef EV_USE_EPOLL 116# undef EV_USE_EPOLL
117# define EV_USE_EPOLL 0 117# define EV_USE_EPOLL 0
118# endif 118# endif
119 119
120# if HAVE_LINUX_AIO_ABI_H
121# ifndef EV_USE_LINUXAIO
122# define EV_USE_LINUXAIO 0 /* was: EV_FEATURE_BACKENDS, always off by default */
123# endif
124# else
125# undef EV_USE_LINUXAIO
126# define EV_USE_LINUXAIO 0
127# endif
128
129# if HAVE_LINUX_FS_H && HAVE_SYS_TIMERFD_H && HAVE_KERNEL_RWF_T
130# ifndef EV_USE_IOURING
131# define EV_USE_IOURING EV_FEATURE_BACKENDS
132# endif
133# else
134# undef EV_USE_IOURING
135# define EV_USE_IOURING 0
136# endif
137
120# if HAVE_KQUEUE && HAVE_SYS_EVENT_H 138# if HAVE_KQUEUE && HAVE_SYS_EVENT_H
121# ifndef EV_USE_KQUEUE 139# ifndef EV_USE_KQUEUE
122# define EV_USE_KQUEUE EV_FEATURE_BACKENDS 140# define EV_USE_KQUEUE EV_FEATURE_BACKENDS
123# endif 141# endif
124# else 142# else
… …
159# endif 177# endif
160# else 178# else
161# undef EV_USE_EVENTFD 179# undef EV_USE_EVENTFD
162# define EV_USE_EVENTFD 0 180# define EV_USE_EVENTFD 0
163# endif 181# endif
164 182
183# if HAVE_SYS_TIMERFD_H
184# ifndef EV_USE_TIMERFD
185# define EV_USE_TIMERFD EV_FEATURE_OS
186# endif
187# else
188# undef EV_USE_TIMERFD
189# define EV_USE_TIMERFD 0
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
… …
345# else 390# else
346# define EV_USE_SIGNALFD 0 391# define EV_USE_SIGNALFD 0
347# endif 392# endif
348#endif 393#endif
349 394
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
400# endif
401#endif
402
350#if 0 /* debugging */ 403#if 0 /* debugging */
351# define EV_VERIFY 3 404# define EV_VERIFY 3
352# define EV_USE_4HEAP 1 405# define EV_USE_4HEAP 1
353# define EV_HEAP_CACHE_AT 1 406# define EV_HEAP_CACHE_AT 1
354#endif 407#endif
… …
363 416
364#ifndef EV_HEAP_CACHE_AT 417#ifndef EV_HEAP_CACHE_AT
365# define EV_HEAP_CACHE_AT EV_FEATURE_DATA 418# define EV_HEAP_CACHE_AT EV_FEATURE_DATA
366#endif 419#endif
367 420
368#ifdef ANDROID 421#ifdef __ANDROID__
369/* supposedly, android doesn't typedef fd_mask */ 422/* supposedly, android doesn't typedef fd_mask */
370# undef EV_USE_SELECT 423# undef EV_USE_SELECT
371# define EV_USE_SELECT 0 424# define EV_USE_SELECT 0
372/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */ 425/* supposedly, we need to include syscall.h, not sys/syscall.h, so just disable */
373# undef EV_USE_CLOCK_SYSCALL 426# undef EV_USE_CLOCK_SYSCALL
… …
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
… …
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
651
652#include <string.h> /* for memcpy */
538 653
539#ifdef _WIN32 654#ifdef _WIN32
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 static noinline 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 */
1901ecb_noinline
1589static ev_tstamp noinline 1902static ev_tstamp
1590ev_floor (ev_tstamp v) 1903ev_floor (ev_tstamp v)
1591{ 1904{
1592 /* the choice of shift factor is not terribly important */ 1905 /* the choice of shift factor is not terribly important */
1593#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1906#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1594 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1907 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1595#else 1908#else
1596 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1909 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1597#endif 1910#endif
1598 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
1599 /* argument too large for an unsigned long? */ 1920 /* argument too large for an unsigned long? then reduce it */
1600 if (expect_false (v >= shift)) 1921 if (ecb_expect_false (v >= shift))
1601 { 1922 {
1602 ev_tstamp f; 1923 ev_tstamp f;
1603 1924
1604 if (v == v - 1.) 1925 if (v == v - 1.)
1605 return v; /* very large number */ 1926 return v; /* very large numbers are assumed to be integer */
1606 1927
1607 f = shift * ev_floor (v * (1. / shift)); 1928 f = shift * ev_floor (v * (1. / shift));
1608 return f + ev_floor (v - f); 1929 return f + ev_floor (v - f);
1609 } 1930 }
1610 1931
1611 /* special treatment for negative args? */
1612 if (expect_false (v < 0.))
1613 {
1614 ev_tstamp f = -ev_floor (-v);
1615
1616 return f - (f == v ? 0 : 1);
1617 }
1618
1619 /* fits into an unsigned long */ 1932 /* fits into an unsigned long */
1620 return (unsigned long)v; 1933 return (unsigned long)v;
1621} 1934}
1622 1935
1623#endif 1936#endif
… …
1626 1939
1627#ifdef __linux 1940#ifdef __linux
1628# include <sys/utsname.h> 1941# include <sys/utsname.h>
1629#endif 1942#endif
1630 1943
1631static unsigned int noinline ecb_cold 1944ecb_noinline ecb_cold
1945static unsigned int
1632ev_linux_version (void) 1946ev_linux_version (void)
1633{ 1947{
1634#ifdef __linux 1948#ifdef __linux
1635 unsigned int v = 0; 1949 unsigned int v = 0;
1636 struct utsname buf; 1950 struct utsname buf;
… …
1665} 1979}
1666 1980
1667/*****************************************************************************/ 1981/*****************************************************************************/
1668 1982
1669#if EV_AVOID_STDIO 1983#if EV_AVOID_STDIO
1670static void noinline ecb_cold 1984ecb_noinline ecb_cold
1985static void
1671ev_printerr (const char *msg) 1986ev_printerr (const char *msg)
1672{ 1987{
1673 write (STDERR_FILENO, msg, strlen (msg)); 1988 write (STDERR_FILENO, msg, strlen (msg));
1674} 1989}
1675#endif 1990#endif
1676 1991
1677static void (*syserr_cb)(const char *msg) EV_THROW; 1992static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1678 1993
1679void ecb_cold 1994ecb_cold
1995void
1680ev_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
1681{ 1997{
1682 syserr_cb = cb; 1998 syserr_cb = cb;
1683} 1999}
1684 2000
1685static void noinline ecb_cold 2001ecb_noinline ecb_cold
2002static void
1686ev_syserr (const char *msg) 2003ev_syserr (const char *msg)
1687{ 2004{
1688 if (!msg) 2005 if (!msg)
1689 msg = "(libev) system error"; 2006 msg = "(libev) system error";
1690 2007
… …
1703 abort (); 2020 abort ();
1704 } 2021 }
1705} 2022}
1706 2023
1707static void * 2024static void *
1708ev_realloc_emul (void *ptr, long size) EV_THROW 2025ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1709{ 2026{
1710 /* some systems, notably openbsd and darwin, fail to properly 2027 /* some systems, notably openbsd and darwin, fail to properly
1711 * 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
1712 * the single unix specification, so work around them here. 2029 * the single unix specification, so work around them here.
1713 * recently, also (at least) fedora and debian started breaking it, 2030 * recently, also (at least) fedora and debian started breaking it,
… …
1719 2036
1720 free (ptr); 2037 free (ptr);
1721 return 0; 2038 return 0;
1722} 2039}
1723 2040
1724static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 2041static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1725 2042
1726void ecb_cold 2043ecb_cold
2044void
1727ev_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
1728{ 2046{
1729 alloc = cb; 2047 alloc = cb;
1730} 2048}
1731 2049
1732inline_speed void * 2050inline_speed void *
… …
1759typedef struct 2077typedef struct
1760{ 2078{
1761 WL head; 2079 WL head;
1762 unsigned char events; /* the events watched for */ 2080 unsigned char events; /* the events watched for */
1763 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) */
1764 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 */
1765 unsigned char unused; 2083 unsigned char eflags; /* flags field for use by backends */
1766#if EV_USE_EPOLL 2084#if EV_USE_EPOLL
1767 unsigned int egen; /* generation counter to counter epoll bugs */ 2085 unsigned int egen; /* generation counter to counter epoll bugs */
1768#endif 2086#endif
1769#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2087#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1770 SOCKET handle; 2088 SOCKET handle;
… …
1824 static struct ev_loop default_loop_struct; 2142 static struct ev_loop default_loop_struct;
1825 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 */
1826 2144
1827#else 2145#else
1828 2146
1829 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 */
1830 #define VAR(name,decl) static decl; 2148 #define VAR(name,decl) static decl;
1831 #include "ev_vars.h" 2149 #include "ev_vars.h"
1832 #undef VAR 2150 #undef VAR
1833 2151
1834 static int ev_default_loop_ptr; 2152 static int ev_default_loop_ptr;
1835 2153
1836#endif 2154#endif
1837 2155
1838#if EV_FEATURE_API 2156#if EV_FEATURE_API
1839# 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)
1840# 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)
1841# define EV_INVOKE_PENDING invoke_cb (EV_A) 2159# define EV_INVOKE_PENDING invoke_cb (EV_A)
1842#else 2160#else
1843# define EV_RELEASE_CB (void)0 2161# define EV_RELEASE_CB (void)0
1844# define EV_ACQUIRE_CB (void)0 2162# define EV_ACQUIRE_CB (void)0
1845# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2163# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1849 2167
1850/*****************************************************************************/ 2168/*****************************************************************************/
1851 2169
1852#ifndef EV_HAVE_EV_TIME 2170#ifndef EV_HAVE_EV_TIME
1853ev_tstamp 2171ev_tstamp
1854ev_time (void) EV_THROW 2172ev_time (void) EV_NOEXCEPT
1855{ 2173{
1856#if EV_USE_REALTIME 2174#if EV_USE_REALTIME
1857 if (expect_true (have_realtime)) 2175 if (ecb_expect_true (have_realtime))
1858 { 2176 {
1859 struct timespec ts; 2177 struct timespec ts;
1860 clock_gettime (CLOCK_REALTIME, &ts); 2178 clock_gettime (CLOCK_REALTIME, &ts);
1861 return ts.tv_sec + ts.tv_nsec * 1e-9; 2179 return EV_TS_GET (ts);
1862 } 2180 }
1863#endif 2181#endif
1864 2182
2183 {
1865 struct timeval tv; 2184 struct timeval tv;
1866 gettimeofday (&tv, 0); 2185 gettimeofday (&tv, 0);
1867 return tv.tv_sec + tv.tv_usec * 1e-6; 2186 return EV_TV_GET (tv);
2187 }
1868} 2188}
1869#endif 2189#endif
1870 2190
1871inline_size ev_tstamp 2191inline_size ev_tstamp
1872get_clock (void) 2192get_clock (void)
1873{ 2193{
1874#if EV_USE_MONOTONIC 2194#if EV_USE_MONOTONIC
1875 if (expect_true (have_monotonic)) 2195 if (ecb_expect_true (have_monotonic))
1876 { 2196 {
1877 struct timespec ts; 2197 struct timespec ts;
1878 clock_gettime (CLOCK_MONOTONIC, &ts); 2198 clock_gettime (CLOCK_MONOTONIC, &ts);
1879 return ts.tv_sec + ts.tv_nsec * 1e-9; 2199 return EV_TS_GET (ts);
1880 } 2200 }
1881#endif 2201#endif
1882 2202
1883 return ev_time (); 2203 return ev_time ();
1884} 2204}
1885 2205
1886#if EV_MULTIPLICITY 2206#if EV_MULTIPLICITY
1887ev_tstamp 2207ev_tstamp
1888ev_now (EV_P) EV_THROW 2208ev_now (EV_P) EV_NOEXCEPT
1889{ 2209{
1890 return ev_rt_now; 2210 return ev_rt_now;
1891} 2211}
1892#endif 2212#endif
1893 2213
1894void 2214void
1895ev_sleep (ev_tstamp delay) EV_THROW 2215ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1896{ 2216{
1897 if (delay > 0.) 2217 if (delay > EV_TS_CONST (0.))
1898 { 2218 {
1899#if EV_USE_NANOSLEEP 2219#if EV_USE_NANOSLEEP
1900 struct timespec ts; 2220 struct timespec ts;
1901 2221
1902 EV_TS_SET (ts, delay); 2222 EV_TS_SET (ts, delay);
1903 nanosleep (&ts, 0); 2223 nanosleep (&ts, 0);
1904#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) */
1905 Sleep ((unsigned long)(delay * 1e3)); 2227 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1906#else 2228#else
1907 struct timeval tv; 2229 struct timeval tv;
1908 2230
1909 /* 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 */
1910 /* something not guaranteed by newer posix versions, but guaranteed */ 2232 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1940 } 2262 }
1941 2263
1942 return ncur; 2264 return ncur;
1943} 2265}
1944 2266
1945static void * noinline ecb_cold 2267ecb_noinline ecb_cold
2268static void *
1946array_realloc (int elem, void *base, int *cur, int cnt) 2269array_realloc (int elem, void *base, int *cur, int cnt)
1947{ 2270{
1948 *cur = array_nextsize (elem, *cur, cnt); 2271 *cur = array_nextsize (elem, *cur, cnt);
1949 return ev_realloc (base, elem * *cur); 2272 return ev_realloc (base, elem * *cur);
1950} 2273}
1951 2274
2275#define array_needsize_noinit(base,offset,count)
2276
1952#define array_init_zero(base,count) \ 2277#define array_needsize_zerofill(base,offset,count) \
1953 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2278 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1954 2279
1955#define array_needsize(type,base,cur,cnt,init) \ 2280#define array_needsize(type,base,cur,cnt,init) \
1956 if (expect_false ((cnt) > (cur))) \ 2281 if (ecb_expect_false ((cnt) > (cur))) \
1957 { \ 2282 { \
1958 int ecb_unused ocur_ = (cur); \ 2283 ecb_unused int ocur_ = (cur); \
1959 (base) = (type *)array_realloc \ 2284 (base) = (type *)array_realloc \
1960 (sizeof (type), (base), &(cur), (cnt)); \ 2285 (sizeof (type), (base), &(cur), (cnt)); \
1961 init ((base) + (ocur_), (cur) - ocur_); \ 2286 init ((base), ocur_, ((cur) - ocur_)); \
1962 } 2287 }
1963 2288
1964#if 0 2289#if 0
1965#define array_slim(type,stem) \ 2290#define array_slim(type,stem) \
1966 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2291 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1975 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
1976 2301
1977/*****************************************************************************/ 2302/*****************************************************************************/
1978 2303
1979/* dummy callback for pending events */ 2304/* dummy callback for pending events */
1980static void noinline 2305ecb_noinline
2306static void
1981pendingcb (EV_P_ ev_prepare *w, int revents) 2307pendingcb (EV_P_ ev_prepare *w, int revents)
1982{ 2308{
1983} 2309}
1984 2310
1985void noinline 2311ecb_noinline
2312void
1986ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2313ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1987{ 2314{
1988 W w_ = (W)w; 2315 W w_ = (W)w;
1989 int pri = ABSPRI (w_); 2316 int pri = ABSPRI (w_);
1990 2317
1991 if (expect_false (w_->pending)) 2318 if (ecb_expect_false (w_->pending))
1992 pendings [pri][w_->pending - 1].events |= revents; 2319 pendings [pri][w_->pending - 1].events |= revents;
1993 else 2320 else
1994 { 2321 {
1995 w_->pending = ++pendingcnt [pri]; 2322 w_->pending = ++pendingcnt [pri];
1996 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2323 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1997 pendings [pri][w_->pending - 1].w = w_; 2324 pendings [pri][w_->pending - 1].w = w_;
1998 pendings [pri][w_->pending - 1].events = revents; 2325 pendings [pri][w_->pending - 1].events = revents;
1999 } 2326 }
2000 2327
2001 pendingpri = NUMPRI - 1; 2328 pendingpri = NUMPRI - 1;
2002} 2329}
2003 2330
2004inline_speed void 2331inline_speed void
2005feed_reverse (EV_P_ W w) 2332feed_reverse (EV_P_ W w)
2006{ 2333{
2007 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2334 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
2008 rfeeds [rfeedcnt++] = w; 2335 rfeeds [rfeedcnt++] = w;
2009} 2336}
2010 2337
2011inline_size void 2338inline_size void
2012feed_reverse_done (EV_P_ int revents) 2339feed_reverse_done (EV_P_ int revents)
… …
2047inline_speed void 2374inline_speed void
2048fd_event (EV_P_ int fd, int revents) 2375fd_event (EV_P_ int fd, int revents)
2049{ 2376{
2050 ANFD *anfd = anfds + fd; 2377 ANFD *anfd = anfds + fd;
2051 2378
2052 if (expect_true (!anfd->reify)) 2379 if (ecb_expect_true (!anfd->reify))
2053 fd_event_nocheck (EV_A_ fd, revents); 2380 fd_event_nocheck (EV_A_ fd, revents);
2054} 2381}
2055 2382
2056void 2383void
2057ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2384ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
2058{ 2385{
2059 if (fd >= 0 && fd < anfdmax) 2386 if (fd >= 0 && fd < anfdmax)
2060 fd_event_nocheck (EV_A_ fd, revents); 2387 fd_event_nocheck (EV_A_ fd, revents);
2061} 2388}
2062 2389
… …
2065inline_size void 2392inline_size void
2066fd_reify (EV_P) 2393fd_reify (EV_P)
2067{ 2394{
2068 int i; 2395 int i;
2069 2396
2397 /* most backends do not modify the fdchanges list in backend_modfiy.
2398 * except io_uring, which has fixed-size buffers which might force us
2399 * to handle events in backend_modify, causing fdchangesd to be amended,
2400 * which could result in an endless loop.
2401 * to avoid this, we do not dynamically handle fds that were added
2402 * during fd_reify. that menas thast for those backends, fdchangecnt
2403 * might be non-zero during poll, which must cause them to not block.
2404 * to not put too much of a burden on other backends, this detail
2405 * needs to be handled in the backend.
2406 */
2407 int changecnt = fdchangecnt;
2408
2070#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 2409#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
2071 for (i = 0; i < fdchangecnt; ++i) 2410 for (i = 0; i < changecnt; ++i)
2072 { 2411 {
2073 int fd = fdchanges [i]; 2412 int fd = fdchanges [i];
2074 ANFD *anfd = anfds + fd; 2413 ANFD *anfd = anfds + fd;
2075 2414
2076 if (anfd->reify & EV__IOFDSET && anfd->head) 2415 if (anfd->reify & EV__IOFDSET && anfd->head)
… …
2090 } 2429 }
2091 } 2430 }
2092 } 2431 }
2093#endif 2432#endif
2094 2433
2095 for (i = 0; i < fdchangecnt; ++i) 2434 for (i = 0; i < changecnt; ++i)
2096 { 2435 {
2097 int fd = fdchanges [i]; 2436 int fd = fdchanges [i];
2098 ANFD *anfd = anfds + fd; 2437 ANFD *anfd = anfds + fd;
2099 ev_io *w; 2438 ev_io *w;
2100 2439
2101 unsigned char o_events = anfd->events; 2440 unsigned char o_events = anfd->events;
2102 unsigned char o_reify = anfd->reify; 2441 unsigned char o_reify = anfd->reify;
2103 2442
2104 anfd->reify = 0; 2443 anfd->reify = 0;
2105 2444
2106 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2445 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
2107 { 2446 {
2108 anfd->events = 0; 2447 anfd->events = 0;
2109 2448
2110 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)
2111 anfd->events |= (unsigned char)w->events; 2450 anfd->events |= (unsigned char)w->events;
… …
2116 2455
2117 if (o_reify & EV__IOFDSET) 2456 if (o_reify & EV__IOFDSET)
2118 backend_modify (EV_A_ fd, o_events, anfd->events); 2457 backend_modify (EV_A_ fd, o_events, anfd->events);
2119 } 2458 }
2120 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
2121 fdchangecnt = 0; 2467 fdchangecnt -= changecnt;
2122} 2468}
2123 2469
2124/* something about the given fd changed */ 2470/* something about the given fd changed */
2125inline_size void 2471inline_size
2472void
2126fd_change (EV_P_ int fd, int flags) 2473fd_change (EV_P_ int fd, int flags)
2127{ 2474{
2128 unsigned char reify = anfds [fd].reify; 2475 unsigned char reify = anfds [fd].reify;
2129 anfds [fd].reify |= flags; 2476 anfds [fd].reify |= flags;
2130 2477
2131 if (expect_true (!reify)) 2478 if (ecb_expect_true (!reify))
2132 { 2479 {
2133 ++fdchangecnt; 2480 ++fdchangecnt;
2134 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2481 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
2135 fdchanges [fdchangecnt - 1] = fd; 2482 fdchanges [fdchangecnt - 1] = fd;
2136 } 2483 }
2137} 2484}
2138 2485
2139/* 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 */
2140inline_speed void ecb_cold 2487inline_speed ecb_cold void
2141fd_kill (EV_P_ int fd) 2488fd_kill (EV_P_ int fd)
2142{ 2489{
2143 ev_io *w; 2490 ev_io *w;
2144 2491
2145 while ((w = (ev_io *)anfds [fd].head)) 2492 while ((w = (ev_io *)anfds [fd].head))
… …
2148 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2495 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
2149 } 2496 }
2150} 2497}
2151 2498
2152/* check whether the given fd is actually valid, for error recovery */ 2499/* check whether the given fd is actually valid, for error recovery */
2153inline_size int ecb_cold 2500inline_size ecb_cold int
2154fd_valid (int fd) 2501fd_valid (int fd)
2155{ 2502{
2156#ifdef _WIN32 2503#ifdef _WIN32
2157 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2504 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
2158#else 2505#else
2159 return fcntl (fd, F_GETFD) != -1; 2506 return fcntl (fd, F_GETFD) != -1;
2160#endif 2507#endif
2161} 2508}
2162 2509
2163/* called on EBADF to verify fds */ 2510/* called on EBADF to verify fds */
2164static void noinline ecb_cold 2511ecb_noinline ecb_cold
2512static void
2165fd_ebadf (EV_P) 2513fd_ebadf (EV_P)
2166{ 2514{
2167 int fd; 2515 int fd;
2168 2516
2169 for (fd = 0; fd < anfdmax; ++fd) 2517 for (fd = 0; fd < anfdmax; ++fd)
… …
2171 if (!fd_valid (fd) && errno == EBADF) 2519 if (!fd_valid (fd) && errno == EBADF)
2172 fd_kill (EV_A_ fd); 2520 fd_kill (EV_A_ fd);
2173} 2521}
2174 2522
2175/* 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 */
2176static void noinline ecb_cold 2524ecb_noinline ecb_cold
2525static void
2177fd_enomem (EV_P) 2526fd_enomem (EV_P)
2178{ 2527{
2179 int fd; 2528 int fd;
2180 2529
2181 for (fd = anfdmax; fd--; ) 2530 for (fd = anfdmax; fd--; )
… …
2185 break; 2534 break;
2186 } 2535 }
2187} 2536}
2188 2537
2189/* 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 */
2190static void noinline 2539ecb_noinline
2540static void
2191fd_rearm_all (EV_P) 2541fd_rearm_all (EV_P)
2192{ 2542{
2193 int fd; 2543 int fd;
2194 2544
2195 for (fd = 0; fd < anfdmax; ++fd) 2545 for (fd = 0; fd < anfdmax; ++fd)
… …
2248 ev_tstamp minat; 2598 ev_tstamp minat;
2249 ANHE *minpos; 2599 ANHE *minpos;
2250 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2600 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2251 2601
2252 /* find minimum child */ 2602 /* find minimum child */
2253 if (expect_true (pos + DHEAP - 1 < E)) 2603 if (ecb_expect_true (pos + DHEAP - 1 < E))
2254 { 2604 {
2255 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2605 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2256 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));
2257 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));
2258 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));
2259 } 2609 }
2260 else if (pos < E) 2610 else if (pos < E)
2261 { 2611 {
2262 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2612 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2263 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));
2264 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));
2265 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));
2266 } 2616 }
2267 else 2617 else
2268 break; 2618 break;
2269 2619
2270 if (ANHE_at (he) <= minat) 2620 if (ANHE_at (he) <= minat)
… …
2278 2628
2279 heap [k] = he; 2629 heap [k] = he;
2280 ev_active (ANHE_w (he)) = k; 2630 ev_active (ANHE_w (he)) = k;
2281} 2631}
2282 2632
2283#else /* 4HEAP */ 2633#else /* not 4HEAP */
2284 2634
2285#define HEAP0 1 2635#define HEAP0 1
2286#define HPARENT(k) ((k) >> 1) 2636#define HPARENT(k) ((k) >> 1)
2287#define UPHEAP_DONE(p,k) (!(p)) 2637#define UPHEAP_DONE(p,k) (!(p))
2288 2638
… …
2360 upheap (heap, i + HEAP0); 2710 upheap (heap, i + HEAP0);
2361} 2711}
2362 2712
2363/*****************************************************************************/ 2713/*****************************************************************************/
2364 2714
2365/* associate signal watchers to a signal signal */ 2715/* associate signal watchers to a signal */
2366typedef struct 2716typedef struct
2367{ 2717{
2368 EV_ATOMIC_T pending; 2718 EV_ATOMIC_T pending;
2369#if EV_MULTIPLICITY 2719#if EV_MULTIPLICITY
2370 EV_P; 2720 EV_P;
… …
2376 2726
2377/*****************************************************************************/ 2727/*****************************************************************************/
2378 2728
2379#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2729#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2380 2730
2381static void noinline ecb_cold 2731ecb_noinline ecb_cold
2732static void
2382evpipe_init (EV_P) 2733evpipe_init (EV_P)
2383{ 2734{
2384 if (!ev_is_active (&pipe_w)) 2735 if (!ev_is_active (&pipe_w))
2385 { 2736 {
2386 int fds [2]; 2737 int fds [2];
… …
2426inline_speed void 2777inline_speed void
2427evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2778evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2428{ 2779{
2429 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 */
2430 2781
2431 if (expect_true (*flag)) 2782 if (ecb_expect_true (*flag))
2432 return; 2783 return;
2433 2784
2434 *flag = 1; 2785 *flag = 1;
2435 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 */
2436 2787
… …
2457#endif 2808#endif
2458 { 2809 {
2459#ifdef _WIN32 2810#ifdef _WIN32
2460 WSABUF buf; 2811 WSABUF buf;
2461 DWORD sent; 2812 DWORD sent;
2462 buf.buf = &buf; 2813 buf.buf = (char *)&buf;
2463 buf.len = 1; 2814 buf.len = 1;
2464 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);
2465#else 2816#else
2466 write (evpipe [1], &(evpipe [1]), 1); 2817 write (evpipe [1], &(evpipe [1]), 1);
2467#endif 2818#endif
… …
2513 sig_pending = 0; 2864 sig_pending = 0;
2514 2865
2515 ECB_MEMORY_FENCE; 2866 ECB_MEMORY_FENCE;
2516 2867
2517 for (i = EV_NSIG - 1; i--; ) 2868 for (i = EV_NSIG - 1; i--; )
2518 if (expect_false (signals [i].pending)) 2869 if (ecb_expect_false (signals [i].pending))
2519 ev_feed_signal_event (EV_A_ i + 1); 2870 ev_feed_signal_event (EV_A_ i + 1);
2520 } 2871 }
2521#endif 2872#endif
2522 2873
2523#if EV_ASYNC_ENABLE 2874#if EV_ASYNC_ENABLE
… …
2539} 2890}
2540 2891
2541/*****************************************************************************/ 2892/*****************************************************************************/
2542 2893
2543void 2894void
2544ev_feed_signal (int signum) EV_THROW 2895ev_feed_signal (int signum) EV_NOEXCEPT
2545{ 2896{
2546#if EV_MULTIPLICITY 2897#if EV_MULTIPLICITY
2547 EV_P; 2898 EV_P;
2548 ECB_MEMORY_FENCE_ACQUIRE; 2899 ECB_MEMORY_FENCE_ACQUIRE;
2549 EV_A = signals [signum - 1].loop; 2900 EV_A = signals [signum - 1].loop;
… …
2564#endif 2915#endif
2565 2916
2566 ev_feed_signal (signum); 2917 ev_feed_signal (signum);
2567} 2918}
2568 2919
2569void noinline 2920ecb_noinline
2921void
2570ev_feed_signal_event (EV_P_ int signum) EV_THROW 2922ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2571{ 2923{
2572 WL w; 2924 WL w;
2573 2925
2574 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2926 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2575 return; 2927 return;
2576 2928
2577 --signum; 2929 --signum;
2578 2930
2579#if EV_MULTIPLICITY 2931#if EV_MULTIPLICITY
2580 /* 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 */
2581 /* or, likely more useful, feeding a signal nobody is waiting for */ 2933 /* or, likely more useful, feeding a signal nobody is waiting for */
2582 2934
2583 if (expect_false (signals [signum].loop != EV_A)) 2935 if (ecb_expect_false (signals [signum].loop != EV_A))
2584 return; 2936 return;
2585#endif 2937#endif
2586 2938
2587 signals [signum].pending = 0; 2939 signals [signum].pending = 0;
2588 ECB_MEMORY_FENCE_RELEASE; 2940 ECB_MEMORY_FENCE_RELEASE;
… …
2672 3024
2673#endif 3025#endif
2674 3026
2675/*****************************************************************************/ 3027/*****************************************************************************/
2676 3028
3029#if EV_USE_TIMERFD
3030
3031static void periodics_reschedule (EV_P);
3032
3033static void
3034timerfdcb (EV_P_ ev_io *iow, int revents)
3035{
3036 struct itimerspec its = { 0 };
3037
3038 its.it_value.tv_sec = ev_rt_now + (int)MAX_BLOCKTIME2;
3039 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
3040
3041 ev_rt_now = ev_time ();
3042 /* periodics_reschedule only needs ev_rt_now */
3043 /* but maybe in the future we want the full treatment. */
3044 /*
3045 now_floor = EV_TS_CONST (0.);
3046 time_update (EV_A_ EV_TSTAMP_HUGE);
3047 */
3048 periodics_reschedule (EV_A);
3049}
3050
3051ecb_noinline ecb_cold
3052static void
3053evtimerfd_init (EV_P)
3054{
3055 if (!ev_is_active (&timerfd_w))
3056 {
3057 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
3058
3059 if (timerfd >= 0)
3060 {
3061 fd_intern (timerfd); /* just to be sure */
3062
3063 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
3064 ev_set_priority (&timerfd_w, EV_MINPRI);
3065 ev_io_start (EV_A_ &timerfd_w);
3066 ev_unref (EV_A); /* watcher should not keep loop alive */
3067
3068 /* (re-) arm timer */
3069 timerfdcb (EV_A_ 0, 0);
3070 }
3071 }
3072}
3073
3074#endif
3075
3076/*****************************************************************************/
3077
2677#if EV_USE_IOCP 3078#if EV_USE_IOCP
2678# include "ev_iocp.c" 3079# include "ev_iocp.c"
2679#endif 3080#endif
2680#if EV_USE_PORT 3081#if EV_USE_PORT
2681# include "ev_port.c" 3082# include "ev_port.c"
… …
2684# include "ev_kqueue.c" 3085# include "ev_kqueue.c"
2685#endif 3086#endif
2686#if EV_USE_EPOLL 3087#if EV_USE_EPOLL
2687# include "ev_epoll.c" 3088# include "ev_epoll.c"
2688#endif 3089#endif
3090#if EV_USE_LINUXAIO
3091# include "ev_linuxaio.c"
3092#endif
3093#if EV_USE_IOURING
3094# include "ev_iouring.c"
3095#endif
2689#if EV_USE_POLL 3096#if EV_USE_POLL
2690# include "ev_poll.c" 3097# include "ev_poll.c"
2691#endif 3098#endif
2692#if EV_USE_SELECT 3099#if EV_USE_SELECT
2693# include "ev_select.c" 3100# include "ev_select.c"
2694#endif 3101#endif
2695 3102
2696int ecb_cold 3103ecb_cold int
2697ev_version_major (void) EV_THROW 3104ev_version_major (void) EV_NOEXCEPT
2698{ 3105{
2699 return EV_VERSION_MAJOR; 3106 return EV_VERSION_MAJOR;
2700} 3107}
2701 3108
2702int ecb_cold 3109ecb_cold int
2703ev_version_minor (void) EV_THROW 3110ev_version_minor (void) EV_NOEXCEPT
2704{ 3111{
2705 return EV_VERSION_MINOR; 3112 return EV_VERSION_MINOR;
2706} 3113}
2707 3114
2708/* return true if we are running with elevated privileges and should ignore env variables */ 3115/* return true if we are running with elevated privileges and should ignore env variables */
2709int inline_size ecb_cold 3116inline_size ecb_cold int
2710enable_secure (void) 3117enable_secure (void)
2711{ 3118{
2712#ifdef _WIN32 3119#ifdef _WIN32
2713 return 0; 3120 return 0;
2714#else 3121#else
2715 return getuid () != geteuid () 3122 return getuid () != geteuid ()
2716 || getgid () != getegid (); 3123 || getgid () != getegid ();
2717#endif 3124#endif
2718} 3125}
2719 3126
2720unsigned int ecb_cold 3127ecb_cold
3128unsigned int
2721ev_supported_backends (void) EV_THROW 3129ev_supported_backends (void) EV_NOEXCEPT
2722{ 3130{
2723 unsigned int flags = 0; 3131 unsigned int flags = 0;
2724 3132
2725 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 3133 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2726 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 3134 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2727 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 3135 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2728 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 3136 if (EV_USE_LINUXAIO ) flags |= EVBACKEND_LINUXAIO;
2729 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 3137 if (EV_USE_IOURING && ev_linux_version () >= 0x050601) flags |= EVBACKEND_IOURING; /* 5.6.1+ */
2730 3138 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
3139 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
3140
2731 return flags; 3141 return flags;
2732} 3142}
2733 3143
2734unsigned int ecb_cold 3144ecb_cold
3145unsigned int
2735ev_recommended_backends (void) EV_THROW 3146ev_recommended_backends (void) EV_NOEXCEPT
2736{ 3147{
2737 unsigned int flags = ev_supported_backends (); 3148 unsigned int flags = ev_supported_backends ();
2738 3149
2739#ifndef __NetBSD__ 3150#ifndef __NetBSD__
2740 /* kqueue is borked on everything but netbsd apparently */ 3151 /* kqueue is borked on everything but netbsd apparently */
… …
2748#endif 3159#endif
2749#ifdef __FreeBSD__ 3160#ifdef __FreeBSD__
2750 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3161 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2751#endif 3162#endif
2752 3163
3164 /* TODO: linuxaio is very experimental */
3165#if !EV_RECOMMEND_LINUXAIO
3166 flags &= ~EVBACKEND_LINUXAIO;
3167#endif
3168 /* TODO: linuxaio is super experimental */
3169#if !EV_RECOMMEND_IOURING
3170 flags &= ~EVBACKEND_IOURING;
3171#endif
3172
2753 return flags; 3173 return flags;
2754} 3174}
2755 3175
2756unsigned int ecb_cold 3176ecb_cold
3177unsigned int
2757ev_embeddable_backends (void) EV_THROW 3178ev_embeddable_backends (void) EV_NOEXCEPT
2758{ 3179{
2759 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3180 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT | EVBACKEND_IOURING;
2760 3181
2761 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3182 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2762 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3183 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2763 flags &= ~EVBACKEND_EPOLL; 3184 flags &= ~EVBACKEND_EPOLL;
2764 3185
3186 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3187
2765 return flags; 3188 return flags;
2766} 3189}
2767 3190
2768unsigned int 3191unsigned int
2769ev_backend (EV_P) EV_THROW 3192ev_backend (EV_P) EV_NOEXCEPT
2770{ 3193{
2771 return backend; 3194 return backend;
2772} 3195}
2773 3196
2774#if EV_FEATURE_API 3197#if EV_FEATURE_API
2775unsigned int 3198unsigned int
2776ev_iteration (EV_P) EV_THROW 3199ev_iteration (EV_P) EV_NOEXCEPT
2777{ 3200{
2778 return loop_count; 3201 return loop_count;
2779} 3202}
2780 3203
2781unsigned int 3204unsigned int
2782ev_depth (EV_P) EV_THROW 3205ev_depth (EV_P) EV_NOEXCEPT
2783{ 3206{
2784 return loop_depth; 3207 return loop_depth;
2785} 3208}
2786 3209
2787void 3210void
2788ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3211ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2789{ 3212{
2790 io_blocktime = interval; 3213 io_blocktime = interval;
2791} 3214}
2792 3215
2793void 3216void
2794ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3217ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2795{ 3218{
2796 timeout_blocktime = interval; 3219 timeout_blocktime = interval;
2797} 3220}
2798 3221
2799void 3222void
2800ev_set_userdata (EV_P_ void *data) EV_THROW 3223ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2801{ 3224{
2802 userdata = data; 3225 userdata = data;
2803} 3226}
2804 3227
2805void * 3228void *
2806ev_userdata (EV_P) EV_THROW 3229ev_userdata (EV_P) EV_NOEXCEPT
2807{ 3230{
2808 return userdata; 3231 return userdata;
2809} 3232}
2810 3233
2811void 3234void
2812ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3235ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2813{ 3236{
2814 invoke_cb = invoke_pending_cb; 3237 invoke_cb = invoke_pending_cb;
2815} 3238}
2816 3239
2817void 3240void
2818ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3241ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2819{ 3242{
2820 release_cb = release; 3243 release_cb = release;
2821 acquire_cb = acquire; 3244 acquire_cb = acquire;
2822} 3245}
2823#endif 3246#endif
2824 3247
2825/* initialise a loop structure, must be zero-initialised */ 3248/* initialise a loop structure, must be zero-initialised */
2826static void noinline ecb_cold 3249ecb_noinline ecb_cold
3250static void
2827loop_init (EV_P_ unsigned int flags) EV_THROW 3251loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2828{ 3252{
2829 if (!backend) 3253 if (!backend)
2830 { 3254 {
2831 origflags = flags; 3255 origflags = flags;
2832 3256
… …
2885 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3309 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2886#endif 3310#endif
2887#if EV_USE_SIGNALFD 3311#if EV_USE_SIGNALFD
2888 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3312 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2889#endif 3313#endif
3314#if EV_USE_TIMERFD
3315 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3316#endif
2890 3317
2891 if (!(flags & EVBACKEND_MASK)) 3318 if (!(flags & EVBACKEND_MASK))
2892 flags |= ev_recommended_backends (); 3319 flags |= ev_recommended_backends ();
2893 3320
2894#if EV_USE_IOCP 3321#if EV_USE_IOCP
2895 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3322 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2896#endif 3323#endif
2897#if EV_USE_PORT 3324#if EV_USE_PORT
2898 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3325 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2899#endif 3326#endif
2900#if EV_USE_KQUEUE 3327#if EV_USE_KQUEUE
2901 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3328 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3329#endif
3330#if EV_USE_IOURING
3331 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3332#endif
3333#if EV_USE_LINUXAIO
3334 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2902#endif 3335#endif
2903#if EV_USE_EPOLL 3336#if EV_USE_EPOLL
2904 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3337 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2905#endif 3338#endif
2906#if EV_USE_POLL 3339#if EV_USE_POLL
2907 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3340 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2908#endif 3341#endif
2909#if EV_USE_SELECT 3342#if EV_USE_SELECT
2910 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3343 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2911#endif 3344#endif
2912 3345
2913 ev_prepare_init (&pending_w, pendingcb); 3346 ev_prepare_init (&pending_w, pendingcb);
2914 3347
2915#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3348#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2918#endif 3351#endif
2919 } 3352 }
2920} 3353}
2921 3354
2922/* free up a loop structure */ 3355/* free up a loop structure */
2923void ecb_cold 3356ecb_cold
3357void
2924ev_loop_destroy (EV_P) 3358ev_loop_destroy (EV_P)
2925{ 3359{
2926 int i; 3360 int i;
2927 3361
2928#if EV_MULTIPLICITY 3362#if EV_MULTIPLICITY
… …
2931 return; 3365 return;
2932#endif 3366#endif
2933 3367
2934#if EV_CLEANUP_ENABLE 3368#if EV_CLEANUP_ENABLE
2935 /* queue cleanup watchers (and execute them) */ 3369 /* queue cleanup watchers (and execute them) */
2936 if (expect_false (cleanupcnt)) 3370 if (ecb_expect_false (cleanupcnt))
2937 { 3371 {
2938 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3372 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2939 EV_INVOKE_PENDING; 3373 EV_INVOKE_PENDING;
2940 } 3374 }
2941#endif 3375#endif
… …
2960#if EV_USE_SIGNALFD 3394#if EV_USE_SIGNALFD
2961 if (ev_is_active (&sigfd_w)) 3395 if (ev_is_active (&sigfd_w))
2962 close (sigfd); 3396 close (sigfd);
2963#endif 3397#endif
2964 3398
3399#if EV_USE_TIMERFD
3400 if (ev_is_active (&timerfd_w))
3401 close (timerfd);
3402#endif
3403
2965#if EV_USE_INOTIFY 3404#if EV_USE_INOTIFY
2966 if (fs_fd >= 0) 3405 if (fs_fd >= 0)
2967 close (fs_fd); 3406 close (fs_fd);
2968#endif 3407#endif
2969 3408
2970 if (backend_fd >= 0) 3409 if (backend_fd >= 0)
2971 close (backend_fd); 3410 close (backend_fd);
2972 3411
2973#if EV_USE_IOCP 3412#if EV_USE_IOCP
2974 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3413 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2975#endif 3414#endif
2976#if EV_USE_PORT 3415#if EV_USE_PORT
2977 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3416 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2978#endif 3417#endif
2979#if EV_USE_KQUEUE 3418#if EV_USE_KQUEUE
2980 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3419 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3420#endif
3421#if EV_USE_IOURING
3422 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3423#endif
3424#if EV_USE_LINUXAIO
3425 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2981#endif 3426#endif
2982#if EV_USE_EPOLL 3427#if EV_USE_EPOLL
2983 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3428 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2984#endif 3429#endif
2985#if EV_USE_POLL 3430#if EV_USE_POLL
2986 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3431 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2987#endif 3432#endif
2988#if EV_USE_SELECT 3433#if EV_USE_SELECT
2989 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3434 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2990#endif 3435#endif
2991 3436
2992 for (i = NUMPRI; i--; ) 3437 for (i = NUMPRI; i--; )
2993 { 3438 {
2994 array_free (pending, [i]); 3439 array_free (pending, [i]);
… …
3036 3481
3037inline_size void 3482inline_size void
3038loop_fork (EV_P) 3483loop_fork (EV_P)
3039{ 3484{
3040#if EV_USE_PORT 3485#if EV_USE_PORT
3041 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3486 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
3042#endif 3487#endif
3043#if EV_USE_KQUEUE 3488#if EV_USE_KQUEUE
3044 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3489 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3490#endif
3491#if EV_USE_IOURING
3492 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3493#endif
3494#if EV_USE_LINUXAIO
3495 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
3045#endif 3496#endif
3046#if EV_USE_EPOLL 3497#if EV_USE_EPOLL
3047 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3498 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
3048#endif 3499#endif
3049#if EV_USE_INOTIFY 3500#if EV_USE_INOTIFY
3050 infy_fork (EV_A); 3501 infy_fork (EV_A);
3051#endif 3502#endif
3052 3503
3504 if (postfork != 2)
3505 {
3506 #if EV_USE_SIGNALFD
3507 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3508 #endif
3509
3510 #if EV_USE_TIMERFD
3511 if (ev_is_active (&timerfd_w))
3512 {
3513 ev_ref (EV_A);
3514 ev_io_stop (EV_A_ &timerfd_w);
3515
3516 close (timerfd);
3517 timerfd = -2;
3518
3519 evtimerfd_init (EV_A);
3520 /* reschedule periodics, in case we missed something */
3521 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3522 }
3523 #endif
3524
3053#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3525 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
3054 if (ev_is_active (&pipe_w) && postfork != 2) 3526 if (ev_is_active (&pipe_w))
3055 { 3527 {
3056 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3528 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
3057 3529
3058 ev_ref (EV_A); 3530 ev_ref (EV_A);
3059 ev_io_stop (EV_A_ &pipe_w); 3531 ev_io_stop (EV_A_ &pipe_w);
3060 3532
3061 if (evpipe [0] >= 0) 3533 if (evpipe [0] >= 0)
3062 EV_WIN32_CLOSE_FD (evpipe [0]); 3534 EV_WIN32_CLOSE_FD (evpipe [0]);
3063 3535
3064 evpipe_init (EV_A); 3536 evpipe_init (EV_A);
3065 /* iterate over everything, in case we missed something before */ 3537 /* iterate over everything, in case we missed something before */
3066 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3538 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3539 }
3540 #endif
3067 } 3541 }
3068#endif
3069 3542
3070 postfork = 0; 3543 postfork = 0;
3071} 3544}
3072 3545
3073#if EV_MULTIPLICITY 3546#if EV_MULTIPLICITY
3074 3547
3548ecb_cold
3075struct ev_loop * ecb_cold 3549struct ev_loop *
3076ev_loop_new (unsigned int flags) EV_THROW 3550ev_loop_new (unsigned int flags) EV_NOEXCEPT
3077{ 3551{
3078 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3552 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
3079 3553
3080 memset (EV_A, 0, sizeof (struct ev_loop)); 3554 memset (EV_A, 0, sizeof (struct ev_loop));
3081 loop_init (EV_A_ flags); 3555 loop_init (EV_A_ flags);
… …
3088} 3562}
3089 3563
3090#endif /* multiplicity */ 3564#endif /* multiplicity */
3091 3565
3092#if EV_VERIFY 3566#if EV_VERIFY
3093static void noinline ecb_cold 3567ecb_noinline ecb_cold
3568static void
3094verify_watcher (EV_P_ W w) 3569verify_watcher (EV_P_ W w)
3095{ 3570{
3096 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3571 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
3097 3572
3098 if (w->pending) 3573 if (w->pending)
3099 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3574 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
3100} 3575}
3101 3576
3102static void noinline ecb_cold 3577ecb_noinline ecb_cold
3578static void
3103verify_heap (EV_P_ ANHE *heap, int N) 3579verify_heap (EV_P_ ANHE *heap, int N)
3104{ 3580{
3105 int i; 3581 int i;
3106 3582
3107 for (i = HEAP0; i < N + HEAP0; ++i) 3583 for (i = HEAP0; i < N + HEAP0; ++i)
… …
3112 3588
3113 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3589 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
3114 } 3590 }
3115} 3591}
3116 3592
3117static void noinline ecb_cold 3593ecb_noinline ecb_cold
3594static void
3118array_verify (EV_P_ W *ws, int cnt) 3595array_verify (EV_P_ W *ws, int cnt)
3119{ 3596{
3120 while (cnt--) 3597 while (cnt--)
3121 { 3598 {
3122 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3599 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
3125} 3602}
3126#endif 3603#endif
3127 3604
3128#if EV_FEATURE_API 3605#if EV_FEATURE_API
3129void ecb_cold 3606void ecb_cold
3130ev_verify (EV_P) EV_THROW 3607ev_verify (EV_P) EV_NOEXCEPT
3131{ 3608{
3132#if EV_VERIFY 3609#if EV_VERIFY
3133 int i; 3610 int i;
3134 WL w, w2; 3611 WL w, w2;
3135 3612
… …
3211#endif 3688#endif
3212} 3689}
3213#endif 3690#endif
3214 3691
3215#if EV_MULTIPLICITY 3692#if EV_MULTIPLICITY
3693ecb_cold
3216struct ev_loop * ecb_cold 3694struct ev_loop *
3217#else 3695#else
3218int 3696int
3219#endif 3697#endif
3220ev_default_loop (unsigned int flags) EV_THROW 3698ev_default_loop (unsigned int flags) EV_NOEXCEPT
3221{ 3699{
3222 if (!ev_default_loop_ptr) 3700 if (!ev_default_loop_ptr)
3223 { 3701 {
3224#if EV_MULTIPLICITY 3702#if EV_MULTIPLICITY
3225 EV_P = ev_default_loop_ptr = &default_loop_struct; 3703 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3244 3722
3245 return ev_default_loop_ptr; 3723 return ev_default_loop_ptr;
3246} 3724}
3247 3725
3248void 3726void
3249ev_loop_fork (EV_P) EV_THROW 3727ev_loop_fork (EV_P) EV_NOEXCEPT
3250{ 3728{
3251 postfork = 1; 3729 postfork = 1;
3252} 3730}
3253 3731
3254/*****************************************************************************/ 3732/*****************************************************************************/
… …
3258{ 3736{
3259 EV_CB_INVOKE ((W)w, revents); 3737 EV_CB_INVOKE ((W)w, revents);
3260} 3738}
3261 3739
3262unsigned int 3740unsigned int
3263ev_pending_count (EV_P) EV_THROW 3741ev_pending_count (EV_P) EV_NOEXCEPT
3264{ 3742{
3265 int pri; 3743 int pri;
3266 unsigned int count = 0; 3744 unsigned int count = 0;
3267 3745
3268 for (pri = NUMPRI; pri--; ) 3746 for (pri = NUMPRI; pri--; )
3269 count += pendingcnt [pri]; 3747 count += pendingcnt [pri];
3270 3748
3271 return count; 3749 return count;
3272} 3750}
3273 3751
3274void noinline 3752ecb_noinline
3753void
3275ev_invoke_pending (EV_P) 3754ev_invoke_pending (EV_P)
3276{ 3755{
3277 pendingpri = NUMPRI; 3756 pendingpri = NUMPRI;
3278 3757
3279 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3758 do
3280 { 3759 {
3281 --pendingpri; 3760 --pendingpri;
3282 3761
3762 /* pendingpri possibly gets modified in the inner loop */
3283 while (pendingcnt [pendingpri]) 3763 while (pendingcnt [pendingpri])
3284 { 3764 {
3285 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3765 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3286 3766
3287 p->w->pending = 0; 3767 p->w->pending = 0;
3288 EV_CB_INVOKE (p->w, p->events); 3768 EV_CB_INVOKE (p->w, p->events);
3289 EV_FREQUENT_CHECK; 3769 EV_FREQUENT_CHECK;
3290 } 3770 }
3291 } 3771 }
3772 while (pendingpri);
3292} 3773}
3293 3774
3294#if EV_IDLE_ENABLE 3775#if EV_IDLE_ENABLE
3295/* make idle watchers pending. this handles the "call-idle */ 3776/* make idle watchers pending. this handles the "call-idle */
3296/* only when higher priorities are idle" logic */ 3777/* only when higher priorities are idle" logic */
3297inline_size void 3778inline_size void
3298idle_reify (EV_P) 3779idle_reify (EV_P)
3299{ 3780{
3300 if (expect_false (idleall)) 3781 if (ecb_expect_false (idleall))
3301 { 3782 {
3302 int pri; 3783 int pri;
3303 3784
3304 for (pri = NUMPRI; pri--; ) 3785 for (pri = NUMPRI; pri--; )
3305 { 3786 {
… …
3335 { 3816 {
3336 ev_at (w) += w->repeat; 3817 ev_at (w) += w->repeat;
3337 if (ev_at (w) < mn_now) 3818 if (ev_at (w) < mn_now)
3338 ev_at (w) = mn_now; 3819 ev_at (w) = mn_now;
3339 3820
3340 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3821 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3341 3822
3342 ANHE_at_cache (timers [HEAP0]); 3823 ANHE_at_cache (timers [HEAP0]);
3343 downheap (timers, timercnt, HEAP0); 3824 downheap (timers, timercnt, HEAP0);
3344 } 3825 }
3345 else 3826 else
… …
3354 } 3835 }
3355} 3836}
3356 3837
3357#if EV_PERIODIC_ENABLE 3838#if EV_PERIODIC_ENABLE
3358 3839
3359static void noinline 3840ecb_noinline
3841static void
3360periodic_recalc (EV_P_ ev_periodic *w) 3842periodic_recalc (EV_P_ ev_periodic *w)
3361{ 3843{
3362 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3844 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3363 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3845 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3364 3846
… …
3366 while (at <= ev_rt_now) 3848 while (at <= ev_rt_now)
3367 { 3849 {
3368 ev_tstamp nat = at + w->interval; 3850 ev_tstamp nat = at + w->interval;
3369 3851
3370 /* when resolution fails us, we use ev_rt_now */ 3852 /* when resolution fails us, we use ev_rt_now */
3371 if (expect_false (nat == at)) 3853 if (ecb_expect_false (nat == at))
3372 { 3854 {
3373 at = ev_rt_now; 3855 at = ev_rt_now;
3374 break; 3856 break;
3375 } 3857 }
3376 3858
… …
3422 } 3904 }
3423} 3905}
3424 3906
3425/* simply recalculate all periodics */ 3907/* simply recalculate all periodics */
3426/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3908/* TODO: maybe ensure that at least one event happens when jumping forward? */
3427static void noinline ecb_cold 3909ecb_noinline ecb_cold
3910static void
3428periodics_reschedule (EV_P) 3911periodics_reschedule (EV_P)
3429{ 3912{
3430 int i; 3913 int i;
3431 3914
3432 /* adjust periodics after time jump */ 3915 /* adjust periodics after time jump */
… …
3445 reheap (periodics, periodiccnt); 3928 reheap (periodics, periodiccnt);
3446} 3929}
3447#endif 3930#endif
3448 3931
3449/* adjust all timers by a given offset */ 3932/* adjust all timers by a given offset */
3450static void noinline ecb_cold 3933ecb_noinline ecb_cold
3934static void
3451timers_reschedule (EV_P_ ev_tstamp adjust) 3935timers_reschedule (EV_P_ ev_tstamp adjust)
3452{ 3936{
3453 int i; 3937 int i;
3454 3938
3455 for (i = 0; i < timercnt; ++i) 3939 for (i = 0; i < timercnt; ++i)
… …
3464/* also detect if there was a timejump, and act accordingly */ 3948/* also detect if there was a timejump, and act accordingly */
3465inline_speed void 3949inline_speed void
3466time_update (EV_P_ ev_tstamp max_block) 3950time_update (EV_P_ ev_tstamp max_block)
3467{ 3951{
3468#if EV_USE_MONOTONIC 3952#if EV_USE_MONOTONIC
3469 if (expect_true (have_monotonic)) 3953 if (ecb_expect_true (have_monotonic))
3470 { 3954 {
3471 int i; 3955 int i;
3472 ev_tstamp odiff = rtmn_diff; 3956 ev_tstamp odiff = rtmn_diff;
3473 3957
3474 mn_now = get_clock (); 3958 mn_now = get_clock ();
3475 3959
3476 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3960 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3477 /* interpolate in the meantime */ 3961 /* interpolate in the meantime */
3478 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3962 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3479 { 3963 {
3480 ev_rt_now = rtmn_diff + mn_now; 3964 ev_rt_now = rtmn_diff + mn_now;
3481 return; 3965 return;
3482 } 3966 }
3483 3967
… …
3497 ev_tstamp diff; 3981 ev_tstamp diff;
3498 rtmn_diff = ev_rt_now - mn_now; 3982 rtmn_diff = ev_rt_now - mn_now;
3499 3983
3500 diff = odiff - rtmn_diff; 3984 diff = odiff - rtmn_diff;
3501 3985
3502 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3986 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3503 return; /* all is well */ 3987 return; /* all is well */
3504 3988
3505 ev_rt_now = ev_time (); 3989 ev_rt_now = ev_time ();
3506 mn_now = get_clock (); 3990 mn_now = get_clock ();
3507 now_floor = mn_now; 3991 now_floor = mn_now;
… …
3516 else 4000 else
3517#endif 4001#endif
3518 { 4002 {
3519 ev_rt_now = ev_time (); 4003 ev_rt_now = ev_time ();
3520 4004
3521 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 4005 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3522 { 4006 {
3523 /* adjust timers. this is easy, as the offset is the same for all of them */ 4007 /* adjust timers. this is easy, as the offset is the same for all of them */
3524 timers_reschedule (EV_A_ ev_rt_now - mn_now); 4008 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3525#if EV_PERIODIC_ENABLE 4009#if EV_PERIODIC_ENABLE
3526 periodics_reschedule (EV_A); 4010 periodics_reschedule (EV_A);
… …
3549#if EV_VERIFY >= 2 4033#if EV_VERIFY >= 2
3550 ev_verify (EV_A); 4034 ev_verify (EV_A);
3551#endif 4035#endif
3552 4036
3553#ifndef _WIN32 4037#ifndef _WIN32
3554 if (expect_false (curpid)) /* penalise the forking check even more */ 4038 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3555 if (expect_false (getpid () != curpid)) 4039 if (ecb_expect_false (getpid () != curpid))
3556 { 4040 {
3557 curpid = getpid (); 4041 curpid = getpid ();
3558 postfork = 1; 4042 postfork = 1;
3559 } 4043 }
3560#endif 4044#endif
3561 4045
3562#if EV_FORK_ENABLE 4046#if EV_FORK_ENABLE
3563 /* we might have forked, so queue fork handlers */ 4047 /* we might have forked, so queue fork handlers */
3564 if (expect_false (postfork)) 4048 if (ecb_expect_false (postfork))
3565 if (forkcnt) 4049 if (forkcnt)
3566 { 4050 {
3567 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 4051 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3568 EV_INVOKE_PENDING; 4052 EV_INVOKE_PENDING;
3569 } 4053 }
3570#endif 4054#endif
3571 4055
3572#if EV_PREPARE_ENABLE 4056#if EV_PREPARE_ENABLE
3573 /* queue prepare watchers (and execute them) */ 4057 /* queue prepare watchers (and execute them) */
3574 if (expect_false (preparecnt)) 4058 if (ecb_expect_false (preparecnt))
3575 { 4059 {
3576 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 4060 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3577 EV_INVOKE_PENDING; 4061 EV_INVOKE_PENDING;
3578 } 4062 }
3579#endif 4063#endif
3580 4064
3581 if (expect_false (loop_done)) 4065 if (ecb_expect_false (loop_done))
3582 break; 4066 break;
3583 4067
3584 /* we might have forked, so reify kernel state if necessary */ 4068 /* we might have forked, so reify kernel state if necessary */
3585 if (expect_false (postfork)) 4069 if (ecb_expect_false (postfork))
3586 loop_fork (EV_A); 4070 loop_fork (EV_A);
3587 4071
3588 /* update fd-related kernel structures */ 4072 /* update fd-related kernel structures */
3589 fd_reify (EV_A); 4073 fd_reify (EV_A);
3590 4074
… …
3595 4079
3596 /* remember old timestamp for io_blocktime calculation */ 4080 /* remember old timestamp for io_blocktime calculation */
3597 ev_tstamp prev_mn_now = mn_now; 4081 ev_tstamp prev_mn_now = mn_now;
3598 4082
3599 /* update time to cancel out callback processing overhead */ 4083 /* update time to cancel out callback processing overhead */
3600 time_update (EV_A_ 1e100); 4084 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3601 4085
3602 /* from now on, we want a pipe-wake-up */ 4086 /* from now on, we want a pipe-wake-up */
3603 pipe_write_wanted = 1; 4087 pipe_write_wanted = 1;
3604 4088
3605 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 4089 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3606 4090
3607 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 4091 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3608 { 4092 {
3609 waittime = MAX_BLOCKTIME; 4093 waittime = EV_TS_CONST (MAX_BLOCKTIME);
4094
4095#if EV_USE_TIMERFD
4096 /* sleep a lot longer when we can reliably detect timejumps */
4097 if (ecb_expect_true (timerfd >= 0))
4098 waittime = EV_TS_CONST (MAX_BLOCKTIME2);
4099#endif
3610 4100
3611 if (timercnt) 4101 if (timercnt)
3612 { 4102 {
3613 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 4103 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3614 if (waittime > to) waittime = to; 4104 if (waittime > to) waittime = to;
… …
3621 if (waittime > to) waittime = to; 4111 if (waittime > to) waittime = to;
3622 } 4112 }
3623#endif 4113#endif
3624 4114
3625 /* don't let timeouts decrease the waittime below timeout_blocktime */ 4115 /* don't let timeouts decrease the waittime below timeout_blocktime */
3626 if (expect_false (waittime < timeout_blocktime)) 4116 if (ecb_expect_false (waittime < timeout_blocktime))
3627 waittime = timeout_blocktime; 4117 waittime = timeout_blocktime;
3628 4118
3629 /* at this point, we NEED to wait, so we have to ensure */ 4119 /* now there are two more special cases left, either we have
3630 /* to pass a minimum nonzero value to the backend */ 4120 * already-expired timers, so we should not sleep, or we have timers
4121 * that expire very soon, in which case we need to wait for a minimum
4122 * amount of time for some event loop backends.
4123 */
3631 if (expect_false (waittime < backend_mintime)) 4124 if (ecb_expect_false (waittime < backend_mintime))
4125 waittime = waittime <= EV_TS_CONST (0.)
4126 ? EV_TS_CONST (0.)
3632 waittime = backend_mintime; 4127 : backend_mintime;
3633 4128
3634 /* extra check because io_blocktime is commonly 0 */ 4129 /* extra check because io_blocktime is commonly 0 */
3635 if (expect_false (io_blocktime)) 4130 if (ecb_expect_false (io_blocktime))
3636 { 4131 {
3637 sleeptime = io_blocktime - (mn_now - prev_mn_now); 4132 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3638 4133
3639 if (sleeptime > waittime - backend_mintime) 4134 if (sleeptime > waittime - backend_mintime)
3640 sleeptime = waittime - backend_mintime; 4135 sleeptime = waittime - backend_mintime;
3641 4136
3642 if (expect_true (sleeptime > 0.)) 4137 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3643 { 4138 {
3644 ev_sleep (sleeptime); 4139 ev_sleep (sleeptime);
3645 waittime -= sleeptime; 4140 waittime -= sleeptime;
3646 } 4141 }
3647 } 4142 }
… …
3661 { 4156 {
3662 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4157 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3663 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4158 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3664 } 4159 }
3665 4160
3666
3667 /* update ev_rt_now, do magic */ 4161 /* update ev_rt_now, do magic */
3668 time_update (EV_A_ waittime + sleeptime); 4162 time_update (EV_A_ waittime + sleeptime);
3669 } 4163 }
3670 4164
3671 /* queue pending timers and reschedule them */ 4165 /* queue pending timers and reschedule them */
… …
3679 idle_reify (EV_A); 4173 idle_reify (EV_A);
3680#endif 4174#endif
3681 4175
3682#if EV_CHECK_ENABLE 4176#if EV_CHECK_ENABLE
3683 /* queue check watchers, to be executed first */ 4177 /* queue check watchers, to be executed first */
3684 if (expect_false (checkcnt)) 4178 if (ecb_expect_false (checkcnt))
3685 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4179 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3686#endif 4180#endif
3687 4181
3688 EV_INVOKE_PENDING; 4182 EV_INVOKE_PENDING;
3689 } 4183 }
3690 while (expect_true ( 4184 while (ecb_expect_true (
3691 activecnt 4185 activecnt
3692 && !loop_done 4186 && !loop_done
3693 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4187 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3694 )); 4188 ));
3695 4189
… …
3702 4196
3703 return activecnt; 4197 return activecnt;
3704} 4198}
3705 4199
3706void 4200void
3707ev_break (EV_P_ int how) EV_THROW 4201ev_break (EV_P_ int how) EV_NOEXCEPT
3708{ 4202{
3709 loop_done = how; 4203 loop_done = how;
3710} 4204}
3711 4205
3712void 4206void
3713ev_ref (EV_P) EV_THROW 4207ev_ref (EV_P) EV_NOEXCEPT
3714{ 4208{
3715 ++activecnt; 4209 ++activecnt;
3716} 4210}
3717 4211
3718void 4212void
3719ev_unref (EV_P) EV_THROW 4213ev_unref (EV_P) EV_NOEXCEPT
3720{ 4214{
3721 --activecnt; 4215 --activecnt;
3722} 4216}
3723 4217
3724void 4218void
3725ev_now_update (EV_P) EV_THROW 4219ev_now_update (EV_P) EV_NOEXCEPT
3726{ 4220{
3727 time_update (EV_A_ 1e100); 4221 time_update (EV_A_ EV_TSTAMP_HUGE);
3728} 4222}
3729 4223
3730void 4224void
3731ev_suspend (EV_P) EV_THROW 4225ev_suspend (EV_P) EV_NOEXCEPT
3732{ 4226{
3733 ev_now_update (EV_A); 4227 ev_now_update (EV_A);
3734} 4228}
3735 4229
3736void 4230void
3737ev_resume (EV_P) EV_THROW 4231ev_resume (EV_P) EV_NOEXCEPT
3738{ 4232{
3739 ev_tstamp mn_prev = mn_now; 4233 ev_tstamp mn_prev = mn_now;
3740 4234
3741 ev_now_update (EV_A); 4235 ev_now_update (EV_A);
3742 timers_reschedule (EV_A_ mn_now - mn_prev); 4236 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3759inline_size void 4253inline_size void
3760wlist_del (WL *head, WL elem) 4254wlist_del (WL *head, WL elem)
3761{ 4255{
3762 while (*head) 4256 while (*head)
3763 { 4257 {
3764 if (expect_true (*head == elem)) 4258 if (ecb_expect_true (*head == elem))
3765 { 4259 {
3766 *head = elem->next; 4260 *head = elem->next;
3767 break; 4261 break;
3768 } 4262 }
3769 4263
… …
3781 w->pending = 0; 4275 w->pending = 0;
3782 } 4276 }
3783} 4277}
3784 4278
3785int 4279int
3786ev_clear_pending (EV_P_ void *w) EV_THROW 4280ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3787{ 4281{
3788 W w_ = (W)w; 4282 W w_ = (W)w;
3789 int pending = w_->pending; 4283 int pending = w_->pending;
3790 4284
3791 if (expect_true (pending)) 4285 if (ecb_expect_true (pending))
3792 { 4286 {
3793 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4287 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3794 p->w = (W)&pending_w; 4288 p->w = (W)&pending_w;
3795 w_->pending = 0; 4289 w_->pending = 0;
3796 return p->events; 4290 return p->events;
… …
3823 w->active = 0; 4317 w->active = 0;
3824} 4318}
3825 4319
3826/*****************************************************************************/ 4320/*****************************************************************************/
3827 4321
3828void noinline 4322ecb_noinline
4323void
3829ev_io_start (EV_P_ ev_io *w) EV_THROW 4324ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3830{ 4325{
3831 int fd = w->fd; 4326 int fd = w->fd;
3832 4327
3833 if (expect_false (ev_is_active (w))) 4328 if (ecb_expect_false (ev_is_active (w)))
3834 return; 4329 return;
3835 4330
3836 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4331 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3837 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4332 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3838 4333
4334#if EV_VERIFY >= 2
4335 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4336#endif
3839 EV_FREQUENT_CHECK; 4337 EV_FREQUENT_CHECK;
3840 4338
3841 ev_start (EV_A_ (W)w, 1); 4339 ev_start (EV_A_ (W)w, 1);
3842 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4340 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3843 wlist_add (&anfds[fd].head, (WL)w); 4341 wlist_add (&anfds[fd].head, (WL)w);
3844 4342
3845 /* common bug, apparently */ 4343 /* common bug, apparently */
3846 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4344 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3847 4345
… …
3849 w->events &= ~EV__IOFDSET; 4347 w->events &= ~EV__IOFDSET;
3850 4348
3851 EV_FREQUENT_CHECK; 4349 EV_FREQUENT_CHECK;
3852} 4350}
3853 4351
3854void noinline 4352ecb_noinline
4353void
3855ev_io_stop (EV_P_ ev_io *w) EV_THROW 4354ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3856{ 4355{
3857 clear_pending (EV_A_ (W)w); 4356 clear_pending (EV_A_ (W)w);
3858 if (expect_false (!ev_is_active (w))) 4357 if (ecb_expect_false (!ev_is_active (w)))
3859 return; 4358 return;
3860 4359
3861 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4360 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3862 4361
4362#if EV_VERIFY >= 2
4363 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4364#endif
3863 EV_FREQUENT_CHECK; 4365 EV_FREQUENT_CHECK;
3864 4366
3865 wlist_del (&anfds[w->fd].head, (WL)w); 4367 wlist_del (&anfds[w->fd].head, (WL)w);
3866 ev_stop (EV_A_ (W)w); 4368 ev_stop (EV_A_ (W)w);
3867 4369
3868 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4370 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3869 4371
3870 EV_FREQUENT_CHECK; 4372 EV_FREQUENT_CHECK;
3871} 4373}
3872 4374
3873void noinline 4375ecb_noinline
4376void
3874ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4377ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3875{ 4378{
3876 if (expect_false (ev_is_active (w))) 4379 if (ecb_expect_false (ev_is_active (w)))
3877 return; 4380 return;
3878 4381
3879 ev_at (w) += mn_now; 4382 ev_at (w) += mn_now;
3880 4383
3881 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4384 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3882 4385
3883 EV_FREQUENT_CHECK; 4386 EV_FREQUENT_CHECK;
3884 4387
3885 ++timercnt; 4388 ++timercnt;
3886 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4389 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3887 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4390 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3888 ANHE_w (timers [ev_active (w)]) = (WT)w; 4391 ANHE_w (timers [ev_active (w)]) = (WT)w;
3889 ANHE_at_cache (timers [ev_active (w)]); 4392 ANHE_at_cache (timers [ev_active (w)]);
3890 upheap (timers, ev_active (w)); 4393 upheap (timers, ev_active (w));
3891 4394
3892 EV_FREQUENT_CHECK; 4395 EV_FREQUENT_CHECK;
3893 4396
3894 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4397 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3895} 4398}
3896 4399
3897void noinline 4400ecb_noinline
4401void
3898ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4402ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3899{ 4403{
3900 clear_pending (EV_A_ (W)w); 4404 clear_pending (EV_A_ (W)w);
3901 if (expect_false (!ev_is_active (w))) 4405 if (ecb_expect_false (!ev_is_active (w)))
3902 return; 4406 return;
3903 4407
3904 EV_FREQUENT_CHECK; 4408 EV_FREQUENT_CHECK;
3905 4409
3906 { 4410 {
… …
3908 4412
3909 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4413 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3910 4414
3911 --timercnt; 4415 --timercnt;
3912 4416
3913 if (expect_true (active < timercnt + HEAP0)) 4417 if (ecb_expect_true (active < timercnt + HEAP0))
3914 { 4418 {
3915 timers [active] = timers [timercnt + HEAP0]; 4419 timers [active] = timers [timercnt + HEAP0];
3916 adjustheap (timers, timercnt, active); 4420 adjustheap (timers, timercnt, active);
3917 } 4421 }
3918 } 4422 }
… …
3922 ev_stop (EV_A_ (W)w); 4426 ev_stop (EV_A_ (W)w);
3923 4427
3924 EV_FREQUENT_CHECK; 4428 EV_FREQUENT_CHECK;
3925} 4429}
3926 4430
3927void noinline 4431ecb_noinline
4432void
3928ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4433ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3929{ 4434{
3930 EV_FREQUENT_CHECK; 4435 EV_FREQUENT_CHECK;
3931 4436
3932 clear_pending (EV_A_ (W)w); 4437 clear_pending (EV_A_ (W)w);
3933 4438
… …
3950 4455
3951 EV_FREQUENT_CHECK; 4456 EV_FREQUENT_CHECK;
3952} 4457}
3953 4458
3954ev_tstamp 4459ev_tstamp
3955ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4460ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3956{ 4461{
3957 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4462 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3958} 4463}
3959 4464
3960#if EV_PERIODIC_ENABLE 4465#if EV_PERIODIC_ENABLE
3961void noinline 4466ecb_noinline
4467void
3962ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4468ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3963{ 4469{
3964 if (expect_false (ev_is_active (w))) 4470 if (ecb_expect_false (ev_is_active (w)))
3965 return; 4471 return;
4472
4473#if EV_USE_TIMERFD
4474 if (timerfd == -2)
4475 evtimerfd_init (EV_A);
4476#endif
3966 4477
3967 if (w->reschedule_cb) 4478 if (w->reschedule_cb)
3968 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4479 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3969 else if (w->interval) 4480 else if (w->interval)
3970 { 4481 {
… …
3976 4487
3977 EV_FREQUENT_CHECK; 4488 EV_FREQUENT_CHECK;
3978 4489
3979 ++periodiccnt; 4490 ++periodiccnt;
3980 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4491 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3981 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4492 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3982 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4493 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3983 ANHE_at_cache (periodics [ev_active (w)]); 4494 ANHE_at_cache (periodics [ev_active (w)]);
3984 upheap (periodics, ev_active (w)); 4495 upheap (periodics, ev_active (w));
3985 4496
3986 EV_FREQUENT_CHECK; 4497 EV_FREQUENT_CHECK;
3987 4498
3988 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4499 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3989} 4500}
3990 4501
3991void noinline 4502ecb_noinline
4503void
3992ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4504ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3993{ 4505{
3994 clear_pending (EV_A_ (W)w); 4506 clear_pending (EV_A_ (W)w);
3995 if (expect_false (!ev_is_active (w))) 4507 if (ecb_expect_false (!ev_is_active (w)))
3996 return; 4508 return;
3997 4509
3998 EV_FREQUENT_CHECK; 4510 EV_FREQUENT_CHECK;
3999 4511
4000 { 4512 {
… …
4002 4514
4003 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4515 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
4004 4516
4005 --periodiccnt; 4517 --periodiccnt;
4006 4518
4007 if (expect_true (active < periodiccnt + HEAP0)) 4519 if (ecb_expect_true (active < periodiccnt + HEAP0))
4008 { 4520 {
4009 periodics [active] = periodics [periodiccnt + HEAP0]; 4521 periodics [active] = periodics [periodiccnt + HEAP0];
4010 adjustheap (periodics, periodiccnt, active); 4522 adjustheap (periodics, periodiccnt, active);
4011 } 4523 }
4012 } 4524 }
… …
4014 ev_stop (EV_A_ (W)w); 4526 ev_stop (EV_A_ (W)w);
4015 4527
4016 EV_FREQUENT_CHECK; 4528 EV_FREQUENT_CHECK;
4017} 4529}
4018 4530
4019void noinline 4531ecb_noinline
4532void
4020ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4533ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
4021{ 4534{
4022 /* TODO: use adjustheap and recalculation */ 4535 /* TODO: use adjustheap and recalculation */
4023 ev_periodic_stop (EV_A_ w); 4536 ev_periodic_stop (EV_A_ w);
4024 ev_periodic_start (EV_A_ w); 4537 ev_periodic_start (EV_A_ w);
4025} 4538}
… …
4029# define SA_RESTART 0 4542# define SA_RESTART 0
4030#endif 4543#endif
4031 4544
4032#if EV_SIGNAL_ENABLE 4545#if EV_SIGNAL_ENABLE
4033 4546
4034void noinline 4547ecb_noinline
4548void
4035ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4549ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
4036{ 4550{
4037 if (expect_false (ev_is_active (w))) 4551 if (ecb_expect_false (ev_is_active (w)))
4038 return; 4552 return;
4039 4553
4040 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4554 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
4041 4555
4042#if EV_MULTIPLICITY 4556#if EV_MULTIPLICITY
… …
4111 } 4625 }
4112 4626
4113 EV_FREQUENT_CHECK; 4627 EV_FREQUENT_CHECK;
4114} 4628}
4115 4629
4116void noinline 4630ecb_noinline
4631void
4117ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4632ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
4118{ 4633{
4119 clear_pending (EV_A_ (W)w); 4634 clear_pending (EV_A_ (W)w);
4120 if (expect_false (!ev_is_active (w))) 4635 if (ecb_expect_false (!ev_is_active (w)))
4121 return; 4636 return;
4122 4637
4123 EV_FREQUENT_CHECK; 4638 EV_FREQUENT_CHECK;
4124 4639
4125 wlist_del (&signals [w->signum - 1].head, (WL)w); 4640 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
4153#endif 4668#endif
4154 4669
4155#if EV_CHILD_ENABLE 4670#if EV_CHILD_ENABLE
4156 4671
4157void 4672void
4158ev_child_start (EV_P_ ev_child *w) EV_THROW 4673ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
4159{ 4674{
4160#if EV_MULTIPLICITY 4675#if EV_MULTIPLICITY
4161 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4676 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
4162#endif 4677#endif
4163 if (expect_false (ev_is_active (w))) 4678 if (ecb_expect_false (ev_is_active (w)))
4164 return; 4679 return;
4165 4680
4166 EV_FREQUENT_CHECK; 4681 EV_FREQUENT_CHECK;
4167 4682
4168 ev_start (EV_A_ (W)w, 1); 4683 ev_start (EV_A_ (W)w, 1);
… …
4170 4685
4171 EV_FREQUENT_CHECK; 4686 EV_FREQUENT_CHECK;
4172} 4687}
4173 4688
4174void 4689void
4175ev_child_stop (EV_P_ ev_child *w) EV_THROW 4690ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4176{ 4691{
4177 clear_pending (EV_A_ (W)w); 4692 clear_pending (EV_A_ (W)w);
4178 if (expect_false (!ev_is_active (w))) 4693 if (ecb_expect_false (!ev_is_active (w)))
4179 return; 4694 return;
4180 4695
4181 EV_FREQUENT_CHECK; 4696 EV_FREQUENT_CHECK;
4182 4697
4183 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4698 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4197 4712
4198#define DEF_STAT_INTERVAL 5.0074891 4713#define DEF_STAT_INTERVAL 5.0074891
4199#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4714#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4200#define MIN_STAT_INTERVAL 0.1074891 4715#define MIN_STAT_INTERVAL 0.1074891
4201 4716
4202static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4717ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4203 4718
4204#if EV_USE_INOTIFY 4719#if EV_USE_INOTIFY
4205 4720
4206/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4721/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4207# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4722# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4208 4723
4209static void noinline 4724ecb_noinline
4725static void
4210infy_add (EV_P_ ev_stat *w) 4726infy_add (EV_P_ ev_stat *w)
4211{ 4727{
4212 w->wd = inotify_add_watch (fs_fd, w->path, 4728 w->wd = inotify_add_watch (fs_fd, w->path,
4213 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4729 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4214 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4730 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4278 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4794 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4279 ev_timer_again (EV_A_ &w->timer); 4795 ev_timer_again (EV_A_ &w->timer);
4280 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4796 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4281} 4797}
4282 4798
4283static void noinline 4799ecb_noinline
4800static void
4284infy_del (EV_P_ ev_stat *w) 4801infy_del (EV_P_ ev_stat *w)
4285{ 4802{
4286 int slot; 4803 int slot;
4287 int wd = w->wd; 4804 int wd = w->wd;
4288 4805
… …
4295 4812
4296 /* remove this watcher, if others are watching it, they will rearm */ 4813 /* remove this watcher, if others are watching it, they will rearm */
4297 inotify_rm_watch (fs_fd, wd); 4814 inotify_rm_watch (fs_fd, wd);
4298} 4815}
4299 4816
4300static void noinline 4817ecb_noinline
4818static void
4301infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4819infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4302{ 4820{
4303 if (slot < 0) 4821 if (slot < 0)
4304 /* overflow, need to check for all hash slots */ 4822 /* overflow, need to check for all hash slots */
4305 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4823 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4341 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4859 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4342 ofs += sizeof (struct inotify_event) + ev->len; 4860 ofs += sizeof (struct inotify_event) + ev->len;
4343 } 4861 }
4344} 4862}
4345 4863
4346inline_size void ecb_cold 4864inline_size ecb_cold
4865void
4347ev_check_2625 (EV_P) 4866ev_check_2625 (EV_P)
4348{ 4867{
4349 /* kernels < 2.6.25 are borked 4868 /* kernels < 2.6.25 are borked
4350 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4869 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4351 */ 4870 */
… …
4441#else 4960#else
4442# define EV_LSTAT(p,b) lstat (p, b) 4961# define EV_LSTAT(p,b) lstat (p, b)
4443#endif 4962#endif
4444 4963
4445void 4964void
4446ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4965ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4447{ 4966{
4448 if (lstat (w->path, &w->attr) < 0) 4967 if (lstat (w->path, &w->attr) < 0)
4449 w->attr.st_nlink = 0; 4968 w->attr.st_nlink = 0;
4450 else if (!w->attr.st_nlink) 4969 else if (!w->attr.st_nlink)
4451 w->attr.st_nlink = 1; 4970 w->attr.st_nlink = 1;
4452} 4971}
4453 4972
4454static void noinline 4973ecb_noinline
4974static void
4455stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4975stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4456{ 4976{
4457 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4977 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4458 4978
4459 ev_statdata prev = w->attr; 4979 ev_statdata prev = w->attr;
… …
4490 ev_feed_event (EV_A_ w, EV_STAT); 5010 ev_feed_event (EV_A_ w, EV_STAT);
4491 } 5011 }
4492} 5012}
4493 5013
4494void 5014void
4495ev_stat_start (EV_P_ ev_stat *w) EV_THROW 5015ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4496{ 5016{
4497 if (expect_false (ev_is_active (w))) 5017 if (ecb_expect_false (ev_is_active (w)))
4498 return; 5018 return;
4499 5019
4500 ev_stat_stat (EV_A_ w); 5020 ev_stat_stat (EV_A_ w);
4501 5021
4502 if (w->interval < MIN_STAT_INTERVAL && w->interval) 5022 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4521 5041
4522 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4523} 5043}
4524 5044
4525void 5045void
4526ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 5046ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4527{ 5047{
4528 clear_pending (EV_A_ (W)w); 5048 clear_pending (EV_A_ (W)w);
4529 if (expect_false (!ev_is_active (w))) 5049 if (ecb_expect_false (!ev_is_active (w)))
4530 return; 5050 return;
4531 5051
4532 EV_FREQUENT_CHECK; 5052 EV_FREQUENT_CHECK;
4533 5053
4534#if EV_USE_INOTIFY 5054#if EV_USE_INOTIFY
… …
4547} 5067}
4548#endif 5068#endif
4549 5069
4550#if EV_IDLE_ENABLE 5070#if EV_IDLE_ENABLE
4551void 5071void
4552ev_idle_start (EV_P_ ev_idle *w) EV_THROW 5072ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4553{ 5073{
4554 if (expect_false (ev_is_active (w))) 5074 if (ecb_expect_false (ev_is_active (w)))
4555 return; 5075 return;
4556 5076
4557 pri_adjust (EV_A_ (W)w); 5077 pri_adjust (EV_A_ (W)w);
4558 5078
4559 EV_FREQUENT_CHECK; 5079 EV_FREQUENT_CHECK;
… …
4562 int active = ++idlecnt [ABSPRI (w)]; 5082 int active = ++idlecnt [ABSPRI (w)];
4563 5083
4564 ++idleall; 5084 ++idleall;
4565 ev_start (EV_A_ (W)w, active); 5085 ev_start (EV_A_ (W)w, active);
4566 5086
4567 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 5087 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4568 idles [ABSPRI (w)][active - 1] = w; 5088 idles [ABSPRI (w)][active - 1] = w;
4569 } 5089 }
4570 5090
4571 EV_FREQUENT_CHECK; 5091 EV_FREQUENT_CHECK;
4572} 5092}
4573 5093
4574void 5094void
4575ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 5095ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4576{ 5096{
4577 clear_pending (EV_A_ (W)w); 5097 clear_pending (EV_A_ (W)w);
4578 if (expect_false (!ev_is_active (w))) 5098 if (ecb_expect_false (!ev_is_active (w)))
4579 return; 5099 return;
4580 5100
4581 EV_FREQUENT_CHECK; 5101 EV_FREQUENT_CHECK;
4582 5102
4583 { 5103 {
… …
4594} 5114}
4595#endif 5115#endif
4596 5116
4597#if EV_PREPARE_ENABLE 5117#if EV_PREPARE_ENABLE
4598void 5118void
4599ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 5119ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4600{ 5120{
4601 if (expect_false (ev_is_active (w))) 5121 if (ecb_expect_false (ev_is_active (w)))
4602 return; 5122 return;
4603 5123
4604 EV_FREQUENT_CHECK; 5124 EV_FREQUENT_CHECK;
4605 5125
4606 ev_start (EV_A_ (W)w, ++preparecnt); 5126 ev_start (EV_A_ (W)w, ++preparecnt);
4607 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 5127 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4608 prepares [preparecnt - 1] = w; 5128 prepares [preparecnt - 1] = w;
4609 5129
4610 EV_FREQUENT_CHECK; 5130 EV_FREQUENT_CHECK;
4611} 5131}
4612 5132
4613void 5133void
4614ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 5134ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4615{ 5135{
4616 clear_pending (EV_A_ (W)w); 5136 clear_pending (EV_A_ (W)w);
4617 if (expect_false (!ev_is_active (w))) 5137 if (ecb_expect_false (!ev_is_active (w)))
4618 return; 5138 return;
4619 5139
4620 EV_FREQUENT_CHECK; 5140 EV_FREQUENT_CHECK;
4621 5141
4622 { 5142 {
… …
4632} 5152}
4633#endif 5153#endif
4634 5154
4635#if EV_CHECK_ENABLE 5155#if EV_CHECK_ENABLE
4636void 5156void
4637ev_check_start (EV_P_ ev_check *w) EV_THROW 5157ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4638{ 5158{
4639 if (expect_false (ev_is_active (w))) 5159 if (ecb_expect_false (ev_is_active (w)))
4640 return; 5160 return;
4641 5161
4642 EV_FREQUENT_CHECK; 5162 EV_FREQUENT_CHECK;
4643 5163
4644 ev_start (EV_A_ (W)w, ++checkcnt); 5164 ev_start (EV_A_ (W)w, ++checkcnt);
4645 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5165 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4646 checks [checkcnt - 1] = w; 5166 checks [checkcnt - 1] = w;
4647 5167
4648 EV_FREQUENT_CHECK; 5168 EV_FREQUENT_CHECK;
4649} 5169}
4650 5170
4651void 5171void
4652ev_check_stop (EV_P_ ev_check *w) EV_THROW 5172ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4653{ 5173{
4654 clear_pending (EV_A_ (W)w); 5174 clear_pending (EV_A_ (W)w);
4655 if (expect_false (!ev_is_active (w))) 5175 if (ecb_expect_false (!ev_is_active (w)))
4656 return; 5176 return;
4657 5177
4658 EV_FREQUENT_CHECK; 5178 EV_FREQUENT_CHECK;
4659 5179
4660 { 5180 {
… …
4669 EV_FREQUENT_CHECK; 5189 EV_FREQUENT_CHECK;
4670} 5190}
4671#endif 5191#endif
4672 5192
4673#if EV_EMBED_ENABLE 5193#if EV_EMBED_ENABLE
4674void noinline 5194ecb_noinline
5195void
4675ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5196ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4676{ 5197{
4677 ev_run (w->other, EVRUN_NOWAIT); 5198 ev_run (w->other, EVRUN_NOWAIT);
4678} 5199}
4679 5200
4680static void 5201static void
… …
4702 ev_run (EV_A_ EVRUN_NOWAIT); 5223 ev_run (EV_A_ EVRUN_NOWAIT);
4703 } 5224 }
4704 } 5225 }
4705} 5226}
4706 5227
5228#if EV_FORK_ENABLE
4707static void 5229static void
4708embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5230embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4709{ 5231{
4710 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5232 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4711 5233
… …
4718 ev_run (EV_A_ EVRUN_NOWAIT); 5240 ev_run (EV_A_ EVRUN_NOWAIT);
4719 } 5241 }
4720 5242
4721 ev_embed_start (EV_A_ w); 5243 ev_embed_start (EV_A_ w);
4722} 5244}
5245#endif
4723 5246
4724#if 0 5247#if 0
4725static void 5248static void
4726embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5249embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4727{ 5250{
4728 ev_idle_stop (EV_A_ idle); 5251 ev_idle_stop (EV_A_ idle);
4729} 5252}
4730#endif 5253#endif
4731 5254
4732void 5255void
4733ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5256ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4734{ 5257{
4735 if (expect_false (ev_is_active (w))) 5258 if (ecb_expect_false (ev_is_active (w)))
4736 return; 5259 return;
4737 5260
4738 { 5261 {
4739 EV_P = w->other; 5262 EV_P = w->other;
4740 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5263 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4748 5271
4749 ev_prepare_init (&w->prepare, embed_prepare_cb); 5272 ev_prepare_init (&w->prepare, embed_prepare_cb);
4750 ev_set_priority (&w->prepare, EV_MINPRI); 5273 ev_set_priority (&w->prepare, EV_MINPRI);
4751 ev_prepare_start (EV_A_ &w->prepare); 5274 ev_prepare_start (EV_A_ &w->prepare);
4752 5275
5276#if EV_FORK_ENABLE
4753 ev_fork_init (&w->fork, embed_fork_cb); 5277 ev_fork_init (&w->fork, embed_fork_cb);
4754 ev_fork_start (EV_A_ &w->fork); 5278 ev_fork_start (EV_A_ &w->fork);
5279#endif
4755 5280
4756 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5281 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4757 5282
4758 ev_start (EV_A_ (W)w, 1); 5283 ev_start (EV_A_ (W)w, 1);
4759 5284
4760 EV_FREQUENT_CHECK; 5285 EV_FREQUENT_CHECK;
4761} 5286}
4762 5287
4763void 5288void
4764ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5289ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4765{ 5290{
4766 clear_pending (EV_A_ (W)w); 5291 clear_pending (EV_A_ (W)w);
4767 if (expect_false (!ev_is_active (w))) 5292 if (ecb_expect_false (!ev_is_active (w)))
4768 return; 5293 return;
4769 5294
4770 EV_FREQUENT_CHECK; 5295 EV_FREQUENT_CHECK;
4771 5296
4772 ev_io_stop (EV_A_ &w->io); 5297 ev_io_stop (EV_A_ &w->io);
4773 ev_prepare_stop (EV_A_ &w->prepare); 5298 ev_prepare_stop (EV_A_ &w->prepare);
5299#if EV_FORK_ENABLE
4774 ev_fork_stop (EV_A_ &w->fork); 5300 ev_fork_stop (EV_A_ &w->fork);
5301#endif
4775 5302
4776 ev_stop (EV_A_ (W)w); 5303 ev_stop (EV_A_ (W)w);
4777 5304
4778 EV_FREQUENT_CHECK; 5305 EV_FREQUENT_CHECK;
4779} 5306}
4780#endif 5307#endif
4781 5308
4782#if EV_FORK_ENABLE 5309#if EV_FORK_ENABLE
4783void 5310void
4784ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5311ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4785{ 5312{
4786 if (expect_false (ev_is_active (w))) 5313 if (ecb_expect_false (ev_is_active (w)))
4787 return; 5314 return;
4788 5315
4789 EV_FREQUENT_CHECK; 5316 EV_FREQUENT_CHECK;
4790 5317
4791 ev_start (EV_A_ (W)w, ++forkcnt); 5318 ev_start (EV_A_ (W)w, ++forkcnt);
4792 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5319 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4793 forks [forkcnt - 1] = w; 5320 forks [forkcnt - 1] = w;
4794 5321
4795 EV_FREQUENT_CHECK; 5322 EV_FREQUENT_CHECK;
4796} 5323}
4797 5324
4798void 5325void
4799ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5326ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4800{ 5327{
4801 clear_pending (EV_A_ (W)w); 5328 clear_pending (EV_A_ (W)w);
4802 if (expect_false (!ev_is_active (w))) 5329 if (ecb_expect_false (!ev_is_active (w)))
4803 return; 5330 return;
4804 5331
4805 EV_FREQUENT_CHECK; 5332 EV_FREQUENT_CHECK;
4806 5333
4807 { 5334 {
… …
4817} 5344}
4818#endif 5345#endif
4819 5346
4820#if EV_CLEANUP_ENABLE 5347#if EV_CLEANUP_ENABLE
4821void 5348void
4822ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5349ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4823{ 5350{
4824 if (expect_false (ev_is_active (w))) 5351 if (ecb_expect_false (ev_is_active (w)))
4825 return; 5352 return;
4826 5353
4827 EV_FREQUENT_CHECK; 5354 EV_FREQUENT_CHECK;
4828 5355
4829 ev_start (EV_A_ (W)w, ++cleanupcnt); 5356 ev_start (EV_A_ (W)w, ++cleanupcnt);
4830 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5357 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4831 cleanups [cleanupcnt - 1] = w; 5358 cleanups [cleanupcnt - 1] = w;
4832 5359
4833 /* cleanup watchers should never keep a refcount on the loop */ 5360 /* cleanup watchers should never keep a refcount on the loop */
4834 ev_unref (EV_A); 5361 ev_unref (EV_A);
4835 EV_FREQUENT_CHECK; 5362 EV_FREQUENT_CHECK;
4836} 5363}
4837 5364
4838void 5365void
4839ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5366ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4840{ 5367{
4841 clear_pending (EV_A_ (W)w); 5368 clear_pending (EV_A_ (W)w);
4842 if (expect_false (!ev_is_active (w))) 5369 if (ecb_expect_false (!ev_is_active (w)))
4843 return; 5370 return;
4844 5371
4845 EV_FREQUENT_CHECK; 5372 EV_FREQUENT_CHECK;
4846 ev_ref (EV_A); 5373 ev_ref (EV_A);
4847 5374
… …
4858} 5385}
4859#endif 5386#endif
4860 5387
4861#if EV_ASYNC_ENABLE 5388#if EV_ASYNC_ENABLE
4862void 5389void
4863ev_async_start (EV_P_ ev_async *w) EV_THROW 5390ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4864{ 5391{
4865 if (expect_false (ev_is_active (w))) 5392 if (ecb_expect_false (ev_is_active (w)))
4866 return; 5393 return;
4867 5394
4868 w->sent = 0; 5395 w->sent = 0;
4869 5396
4870 evpipe_init (EV_A); 5397 evpipe_init (EV_A);
4871 5398
4872 EV_FREQUENT_CHECK; 5399 EV_FREQUENT_CHECK;
4873 5400
4874 ev_start (EV_A_ (W)w, ++asynccnt); 5401 ev_start (EV_A_ (W)w, ++asynccnt);
4875 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5402 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4876 asyncs [asynccnt - 1] = w; 5403 asyncs [asynccnt - 1] = w;
4877 5404
4878 EV_FREQUENT_CHECK; 5405 EV_FREQUENT_CHECK;
4879} 5406}
4880 5407
4881void 5408void
4882ev_async_stop (EV_P_ ev_async *w) EV_THROW 5409ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4883{ 5410{
4884 clear_pending (EV_A_ (W)w); 5411 clear_pending (EV_A_ (W)w);
4885 if (expect_false (!ev_is_active (w))) 5412 if (ecb_expect_false (!ev_is_active (w)))
4886 return; 5413 return;
4887 5414
4888 EV_FREQUENT_CHECK; 5415 EV_FREQUENT_CHECK;
4889 5416
4890 { 5417 {
… …
4898 5425
4899 EV_FREQUENT_CHECK; 5426 EV_FREQUENT_CHECK;
4900} 5427}
4901 5428
4902void 5429void
4903ev_async_send (EV_P_ ev_async *w) EV_THROW 5430ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4904{ 5431{
4905 w->sent = 1; 5432 w->sent = 1;
4906 evpipe_write (EV_A_ &async_pending); 5433 evpipe_write (EV_A_ &async_pending);
4907} 5434}
4908#endif 5435#endif
… …
4945 5472
4946 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5473 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4947} 5474}
4948 5475
4949void 5476void
4950ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5477ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4951{ 5478{
4952 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5479 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4953
4954 if (expect_false (!once))
4955 {
4956 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4957 return;
4958 }
4959 5480
4960 once->cb = cb; 5481 once->cb = cb;
4961 once->arg = arg; 5482 once->arg = arg;
4962 5483
4963 ev_init (&once->io, once_cb_io); 5484 ev_init (&once->io, once_cb_io);
… …
4976} 5497}
4977 5498
4978/*****************************************************************************/ 5499/*****************************************************************************/
4979 5500
4980#if EV_WALK_ENABLE 5501#if EV_WALK_ENABLE
4981void ecb_cold 5502ecb_cold
5503void
4982ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5504ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4983{ 5505{
4984 int i, j; 5506 int i, j;
4985 ev_watcher_list *wl, *wn; 5507 ev_watcher_list *wl, *wn;
4986 5508
4987 if (types & (EV_IO | EV_EMBED)) 5509 if (types & (EV_IO | EV_EMBED))

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