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Comparing libev/ev.c (file contents):
Revision 1.474 by root, Wed Feb 11 19:20:21 2015 UTC vs.
Revision 1.517 by root, Tue Dec 24 13:52:58 2019 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 EV_FEATURE_BACKENDS
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 1
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) */
487 584
585/* find a portable timestamp that is "always" in the future but fits into time_t.
586 * this is quite hard, and we are mostly guessing - we handle 32 bit signed/unsigned time_t,
587 * and sizes larger than 32 bit, and maybe the unlikely floating point time_t */
588#define EV_TSTAMP_HUGE \
589 (sizeof (time_t) >= 8 ? 10000000000000. \
590 : 0 < (time_t)4294967295 ? 4294967295. \
591 : 2147483647.) \
592
593#ifndef EV_TS_CONST
594# define EV_TS_CONST(nv) nv
595# define EV_TS_TO_MSEC(a) a * 1e3 + 0.9999
596# 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) 597# 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) 598# 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_TV_GET(tv) ((tv).tv_sec + (tv).tv_usec * 1e-6)
600# define EV_TS_GET(ts) ((ts).tv_sec + (ts).tv_nsec * 1e-9)
601#endif
490 602
491/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */ 603/* the following is ecb.h embedded into libev - use update_ev_c to update from an external copy */
492/* ECB.H BEGIN */ 604/* ECB.H BEGIN */
493/* 605/*
494 * libecb - http://software.schmorp.de/pkg/libecb 606 * libecb - http://software.schmorp.de/pkg/libecb
… …
532 644
533#ifndef ECB_H 645#ifndef ECB_H
534#define ECB_H 646#define ECB_H
535 647
536/* 16 bits major, 16 bits minor */ 648/* 16 bits major, 16 bits minor */
537#define ECB_VERSION 0x00010004 649#define ECB_VERSION 0x00010006
538 650
539#ifdef _WIN32 651#ifdef _WIN32
540 typedef signed char int8_t; 652 typedef signed char int8_t;
541 typedef unsigned char uint8_t; 653 typedef unsigned char uint8_t;
542 typedef signed short int16_t; 654 typedef signed short int16_t;
… …
559 typedef uint32_t uintptr_t; 671 typedef uint32_t uintptr_t;
560 typedef int32_t intptr_t; 672 typedef int32_t intptr_t;
561 #endif 673 #endif
562#else 674#else
563 #include <inttypes.h> 675 #include <inttypes.h>
564 #if UINTMAX_MAX > 0xffffffffU 676 #if (defined INTPTR_MAX ? INTPTR_MAX : ULONG_MAX) > 0xffffffffU
565 #define ECB_PTRSIZE 8 677 #define ECB_PTRSIZE 8
566 #else 678 #else
567 #define ECB_PTRSIZE 4 679 #define ECB_PTRSIZE 4
568 #endif 680 #endif
569#endif 681#endif
570 682
683#define ECB_GCC_AMD64 (__amd64 || __amd64__ || __x86_64 || __x86_64__)
684#define ECB_MSVC_AMD64 (_M_AMD64 || _M_X64)
685
571/* work around x32 idiocy by defining proper macros */ 686/* work around x32 idiocy by defining proper macros */
572#if __amd64 || __x86_64 || _M_AMD64 || _M_X64 687#if ECB_GCC_AMD64 || ECB_MSVC_AMD64
573 #if _ILP32 688 #if _ILP32
574 #define ECB_AMD64_X32 1 689 #define ECB_AMD64_X32 1
575 #else 690 #else
576 #define ECB_AMD64 1 691 #define ECB_AMD64 1
577 #endif 692 #endif
… …
604 #define ECB_CLANG_EXTENSION(x) 0 719 #define ECB_CLANG_EXTENSION(x) 0
605#endif 720#endif
606 721
607#define ECB_CPP (__cplusplus+0) 722#define ECB_CPP (__cplusplus+0)
608#define ECB_CPP11 (__cplusplus >= 201103L) 723#define ECB_CPP11 (__cplusplus >= 201103L)
724#define ECB_CPP14 (__cplusplus >= 201402L)
725#define ECB_CPP17 (__cplusplus >= 201703L)
609 726
610#if ECB_CPP 727#if ECB_CPP
611 #define ECB_C 0 728 #define ECB_C 0
612 #define ECB_STDC_VERSION 0 729 #define ECB_STDC_VERSION 0
613#else 730#else
… …
615 #define ECB_STDC_VERSION __STDC_VERSION__ 732 #define ECB_STDC_VERSION __STDC_VERSION__
616#endif 733#endif
617 734
618#define ECB_C99 (ECB_STDC_VERSION >= 199901L) 735#define ECB_C99 (ECB_STDC_VERSION >= 199901L)
619#define ECB_C11 (ECB_STDC_VERSION >= 201112L) 736#define ECB_C11 (ECB_STDC_VERSION >= 201112L)
737#define ECB_C17 (ECB_STDC_VERSION >= 201710L)
620 738
621#if ECB_CPP 739#if ECB_CPP
622 #define ECB_EXTERN_C extern "C" 740 #define ECB_EXTERN_C extern "C"
623 #define ECB_EXTERN_C_BEG ECB_EXTERN_C { 741 #define ECB_EXTERN_C_BEG ECB_EXTERN_C {
624 #define ECB_EXTERN_C_END } 742 #define ECB_EXTERN_C_END }
… …
639 757
640#if ECB_NO_SMP 758#if ECB_NO_SMP
641 #define ECB_MEMORY_FENCE do { } while (0) 759 #define ECB_MEMORY_FENCE do { } while (0)
642#endif 760#endif
643 761
762/* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/compiler_ref/compiler_builtins.html */
763#if __xlC__ && ECB_CPP
764 #include <builtins.h>
765#endif
766
767#if 1400 <= _MSC_VER
768 #include <intrin.h> /* fence functions _ReadBarrier, also bit search functions _BitScanReverse */
769#endif
770
644#ifndef ECB_MEMORY_FENCE 771#ifndef ECB_MEMORY_FENCE
645 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 772 #if ECB_GCC_VERSION(2,5) || defined __INTEL_COMPILER || (__llvm__ && __GNUC__) || __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
773 #define ECB_MEMORY_FENCE_RELAXED __asm__ __volatile__ ("" : : : "memory")
646 #if __i386 || __i386__ 774 #if __i386 || __i386__
647 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory") 775 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("lock; orb $0, -1(%%esp)" : : : "memory")
648 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 776 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
649 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 777 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
650 #elif __amd64 || __amd64__ || __x86_64 || __x86_64__ 778 #elif ECB_GCC_AMD64
651 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory") 779 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mfence" : : : "memory")
652 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory") 780 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("" : : : "memory")
653 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("") 781 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("" : : : "memory")
654 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ 782 #elif __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__
655 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory") 783 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("sync" : : : "memory")
784 #elif defined __ARM_ARCH_2__ \
785 || defined __ARM_ARCH_3__ || defined __ARM_ARCH_3M__ \
786 || defined __ARM_ARCH_4__ || defined __ARM_ARCH_4T__ \
787 || defined __ARM_ARCH_5__ || defined __ARM_ARCH_5E__ \
788 || defined __ARM_ARCH_5T__ || defined __ARM_ARCH_5TE__ \
789 || defined __ARM_ARCH_5TEJ__
790 /* should not need any, unless running old code on newer cpu - arm doesn't support that */
656 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \ 791 #elif defined __ARM_ARCH_6__ || defined __ARM_ARCH_6J__ \
657 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ 792 || defined __ARM_ARCH_6K__ || defined __ARM_ARCH_6ZK__ \
793 || defined __ARM_ARCH_6T2__
658 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory") 794 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("mcr p15,0,%0,c7,c10,5" : : "r" (0) : "memory")
659 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \ 795 #elif defined __ARM_ARCH_7__ || defined __ARM_ARCH_7A__ \
660 || defined __ARM_ARCH_7M__ || defined __ARM_ARCH_7R__ 796 || defined __ARM_ARCH_7R__ || defined __ARM_ARCH_7M__
661 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory") 797 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb" : : : "memory")
662 #elif __aarch64__ 798 #elif __aarch64__
663 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory") 799 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("dmb ish" : : : "memory")
664 #elif (__sparc || __sparc__) && !__sparcv8 800 #elif (__sparc || __sparc__) && !(__sparc_v8__ || defined __sparcv8)
665 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory") 801 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad | #StoreStore | #StoreLoad" : : : "memory")
666 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory") 802 #define ECB_MEMORY_FENCE_ACQUIRE __asm__ __volatile__ ("membar #LoadStore | #LoadLoad" : : : "memory")
667 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore") 803 #define ECB_MEMORY_FENCE_RELEASE __asm__ __volatile__ ("membar #LoadStore | #StoreStore")
668 #elif defined __s390__ || defined __s390x__ 804 #elif defined __s390__ || defined __s390x__
669 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory") 805 #define ECB_MEMORY_FENCE __asm__ __volatile__ ("bcr 15,0" : : : "memory")
… …
692 #if ECB_GCC_VERSION(4,7) 828 #if ECB_GCC_VERSION(4,7)
693 /* see comment below (stdatomic.h) about the C11 memory model. */ 829 /* see comment below (stdatomic.h) about the C11 memory model. */
694 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST) 830 #define ECB_MEMORY_FENCE __atomic_thread_fence (__ATOMIC_SEQ_CST)
695 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE) 831 #define ECB_MEMORY_FENCE_ACQUIRE __atomic_thread_fence (__ATOMIC_ACQUIRE)
696 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE) 832 #define ECB_MEMORY_FENCE_RELEASE __atomic_thread_fence (__ATOMIC_RELEASE)
833 #define ECB_MEMORY_FENCE_RELAXED __atomic_thread_fence (__ATOMIC_RELAXED)
697 834
698 #elif ECB_CLANG_EXTENSION(c_atomic) 835 #elif ECB_CLANG_EXTENSION(c_atomic)
699 /* see comment below (stdatomic.h) about the C11 memory model. */ 836 /* see comment below (stdatomic.h) about the C11 memory model. */
700 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST) 837 #define ECB_MEMORY_FENCE __c11_atomic_thread_fence (__ATOMIC_SEQ_CST)
701 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE) 838 #define ECB_MEMORY_FENCE_ACQUIRE __c11_atomic_thread_fence (__ATOMIC_ACQUIRE)
702 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE) 839 #define ECB_MEMORY_FENCE_RELEASE __c11_atomic_thread_fence (__ATOMIC_RELEASE)
840 #define ECB_MEMORY_FENCE_RELAXED __c11_atomic_thread_fence (__ATOMIC_RELAXED)
703 841
704 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__ 842 #elif ECB_GCC_VERSION(4,4) || defined __INTEL_COMPILER || defined __clang__
705 #define ECB_MEMORY_FENCE __sync_synchronize () 843 #define ECB_MEMORY_FENCE __sync_synchronize ()
706 #elif _MSC_VER >= 1500 /* VC++ 2008 */ 844 #elif _MSC_VER >= 1500 /* VC++ 2008 */
707 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */ 845 /* apparently, microsoft broke all the memory barrier stuff in Visual Studio 2008... */
… …
717 #elif defined _WIN32 855 #elif defined _WIN32
718 #include <WinNT.h> 856 #include <WinNT.h>
719 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */ 857 #define ECB_MEMORY_FENCE MemoryBarrier () /* actually just xchg on x86... scary */
720 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110 858 #elif __SUNPRO_C >= 0x5110 || __SUNPRO_CC >= 0x5110
721 #include <mbarrier.h> 859 #include <mbarrier.h>
722 #define ECB_MEMORY_FENCE __machine_rw_barrier () 860 #define ECB_MEMORY_FENCE __machine_rw_barrier ()
723 #define ECB_MEMORY_FENCE_ACQUIRE __machine_r_barrier () 861 #define ECB_MEMORY_FENCE_ACQUIRE __machine_acq_barrier ()
724 #define ECB_MEMORY_FENCE_RELEASE __machine_w_barrier () 862 #define ECB_MEMORY_FENCE_RELEASE __machine_rel_barrier ()
863 #define ECB_MEMORY_FENCE_RELAXED __compiler_barrier ()
725 #elif __xlC__ 864 #elif __xlC__
726 #define ECB_MEMORY_FENCE __sync () 865 #define ECB_MEMORY_FENCE __sync ()
727 #endif 866 #endif
728#endif 867#endif
729 868
730#ifndef ECB_MEMORY_FENCE 869#ifndef ECB_MEMORY_FENCE
731 #if ECB_C11 && !defined __STDC_NO_ATOMICS__ 870 #if ECB_C11 && !defined __STDC_NO_ATOMICS__
732 /* we assume that these memory fences work on all variables/all memory accesses, */ 871 /* we assume that these memory fences work on all variables/all memory accesses, */
733 /* not just C11 atomics and atomic accesses */ 872 /* not just C11 atomics and atomic accesses */
734 #include <stdatomic.h> 873 #include <stdatomic.h>
735 /* Unfortunately, neither gcc 4.7 nor clang 3.1 generate any instructions for */
736 /* any fence other than seq_cst, which isn't very efficient for us. */
737 /* Why that is, we don't know - either the C11 memory model is quite useless */
738 /* for most usages, or gcc and clang have a bug */
739 /* I *currently* lean towards the latter, and inefficiently implement */
740 /* all three of ecb's fences as a seq_cst fence */
741 /* Update, gcc-4.8 generates mfence for all c++ fences, but nothing */
742 /* for all __atomic_thread_fence's except seq_cst */
743 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst) 874 #define ECB_MEMORY_FENCE atomic_thread_fence (memory_order_seq_cst)
875 #define ECB_MEMORY_FENCE_ACQUIRE atomic_thread_fence (memory_order_acquire)
876 #define ECB_MEMORY_FENCE_RELEASE atomic_thread_fence (memory_order_release)
744 #endif 877 #endif
745#endif 878#endif
746 879
747#ifndef ECB_MEMORY_FENCE 880#ifndef ECB_MEMORY_FENCE
748 #if !ECB_AVOID_PTHREADS 881 #if !ECB_AVOID_PTHREADS
… …
768 901
769#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE 902#if !defined ECB_MEMORY_FENCE_RELEASE && defined ECB_MEMORY_FENCE
770 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 903 #define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
771#endif 904#endif
772 905
906#if !defined ECB_MEMORY_FENCE_RELAXED && defined ECB_MEMORY_FENCE
907 #define ECB_MEMORY_FENCE_RELAXED ECB_MEMORY_FENCE /* very heavy-handed */
908#endif
909
773/*****************************************************************************/ 910/*****************************************************************************/
774 911
775#if ECB_CPP 912#if ECB_CPP
776 #define ecb_inline static inline 913 #define ecb_inline static inline
777#elif ECB_GCC_VERSION(2,5) 914#elif ECB_GCC_VERSION(2,5)
… …
794 931
795#define ECB_CONCAT_(a, b) a ## b 932#define ECB_CONCAT_(a, b) a ## b
796#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b) 933#define ECB_CONCAT(a, b) ECB_CONCAT_(a, b)
797#define ECB_STRINGIFY_(a) # a 934#define ECB_STRINGIFY_(a) # a
798#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a) 935#define ECB_STRINGIFY(a) ECB_STRINGIFY_(a)
936#define ECB_STRINGIFY_EXPR(expr) ((expr), ECB_STRINGIFY_ (expr))
799 937
800#define ecb_function_ ecb_inline 938#define ecb_function_ ecb_inline
801 939
802#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8) 940#if ECB_GCC_VERSION(3,1) || ECB_CLANG_VERSION(2,8)
803 #define ecb_attribute(attrlist) __attribute__ (attrlist) 941 #define ecb_attribute(attrlist) __attribute__ (attrlist)
… …
840 #define ecb_deprecated __declspec (deprecated) 978 #define ecb_deprecated __declspec (deprecated)
841#else 979#else
842 #define ecb_deprecated ecb_attribute ((__deprecated__)) 980 #define ecb_deprecated ecb_attribute ((__deprecated__))
843#endif 981#endif
844 982
983#if _MSC_VER >= 1500
984 #define ecb_deprecated_message(msg) __declspec (deprecated (msg))
985#elif ECB_GCC_VERSION(4,5)
986 #define ecb_deprecated_message(msg) ecb_attribute ((__deprecated__ (msg))
987#else
988 #define ecb_deprecated_message(msg) ecb_deprecated
989#endif
990
991#if _MSC_VER >= 1400
992 #define ecb_noinline __declspec (noinline)
993#else
845#define ecb_noinline ecb_attribute ((__noinline__)) 994 #define ecb_noinline ecb_attribute ((__noinline__))
995#endif
996
846#define ecb_unused ecb_attribute ((__unused__)) 997#define ecb_unused ecb_attribute ((__unused__))
847#define ecb_const ecb_attribute ((__const__)) 998#define ecb_const ecb_attribute ((__const__))
848#define ecb_pure ecb_attribute ((__pure__)) 999#define ecb_pure ecb_attribute ((__pure__))
849 1000
850/* TODO http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx __declspec(noreturn) */
851#if ECB_C11 || __IBMC_NORETURN 1001#if ECB_C11 || __IBMC_NORETURN
852 /* http://pic.dhe.ibm.com/infocenter/compbg/v121v141/topic/com.ibm.xlcpp121.bg.doc/language_ref/noreturn.html */ 1002 /* http://www-01.ibm.com/support/knowledgecenter/SSGH3R_13.1.0/com.ibm.xlcpp131.aix.doc/language_ref/noreturn.html */
853 #define ecb_noreturn _Noreturn 1003 #define ecb_noreturn _Noreturn
1004#elif ECB_CPP11
1005 #define ecb_noreturn [[noreturn]]
1006#elif _MSC_VER >= 1200
1007 /* http://msdn.microsoft.com/en-us/library/k6ktzx3s.aspx */
1008 #define ecb_noreturn __declspec (noreturn)
854#else 1009#else
855 #define ecb_noreturn ecb_attribute ((__noreturn__)) 1010 #define ecb_noreturn ecb_attribute ((__noreturn__))
856#endif 1011#endif
857 1012
858#if ECB_GCC_VERSION(4,3) 1013#if ECB_GCC_VERSION(4,3)
… …
889#else 1044#else
890 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x); 1045 ecb_function_ ecb_const int ecb_ctz32 (uint32_t x);
891 ecb_function_ ecb_const int 1046 ecb_function_ ecb_const int
892 ecb_ctz32 (uint32_t x) 1047 ecb_ctz32 (uint32_t x)
893 { 1048 {
1049#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1050 unsigned long r;
1051 _BitScanForward (&r, x);
1052 return (int)r;
1053#else
894 int r = 0; 1054 int r = 0;
895 1055
896 x &= ~x + 1; /* this isolates the lowest bit */ 1056 x &= ~x + 1; /* this isolates the lowest bit */
897 1057
898#if ECB_branchless_on_i386 1058#if ECB_branchless_on_i386
… …
908 if (x & 0xff00ff00) r += 8; 1068 if (x & 0xff00ff00) r += 8;
909 if (x & 0xffff0000) r += 16; 1069 if (x & 0xffff0000) r += 16;
910#endif 1070#endif
911 1071
912 return r; 1072 return r;
1073#endif
913 } 1074 }
914 1075
915 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x); 1076 ecb_function_ ecb_const int ecb_ctz64 (uint64_t x);
916 ecb_function_ ecb_const int 1077 ecb_function_ ecb_const int
917 ecb_ctz64 (uint64_t x) 1078 ecb_ctz64 (uint64_t x)
918 { 1079 {
1080#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1081 unsigned long r;
1082 _BitScanForward64 (&r, x);
1083 return (int)r;
1084#else
919 int shift = x & 0xffffffffU ? 0 : 32; 1085 int shift = x & 0xffffffff ? 0 : 32;
920 return ecb_ctz32 (x >> shift) + shift; 1086 return ecb_ctz32 (x >> shift) + shift;
1087#endif
921 } 1088 }
922 1089
923 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x); 1090 ecb_function_ ecb_const int ecb_popcount32 (uint32_t x);
924 ecb_function_ ecb_const int 1091 ecb_function_ ecb_const int
925 ecb_popcount32 (uint32_t x) 1092 ecb_popcount32 (uint32_t x)
… …
933 } 1100 }
934 1101
935 ecb_function_ ecb_const int ecb_ld32 (uint32_t x); 1102 ecb_function_ ecb_const int ecb_ld32 (uint32_t x);
936 ecb_function_ ecb_const int ecb_ld32 (uint32_t x) 1103 ecb_function_ ecb_const int ecb_ld32 (uint32_t x)
937 { 1104 {
1105#if 1400 <= _MSC_VER && (_M_IX86 || _M_X64 || _M_IA64 || _M_ARM)
1106 unsigned long r;
1107 _BitScanReverse (&r, x);
1108 return (int)r;
1109#else
938 int r = 0; 1110 int r = 0;
939 1111
940 if (x >> 16) { x >>= 16; r += 16; } 1112 if (x >> 16) { x >>= 16; r += 16; }
941 if (x >> 8) { x >>= 8; r += 8; } 1113 if (x >> 8) { x >>= 8; r += 8; }
942 if (x >> 4) { x >>= 4; r += 4; } 1114 if (x >> 4) { x >>= 4; r += 4; }
943 if (x >> 2) { x >>= 2; r += 2; } 1115 if (x >> 2) { x >>= 2; r += 2; }
944 if (x >> 1) { r += 1; } 1116 if (x >> 1) { r += 1; }
945 1117
946 return r; 1118 return r;
1119#endif
947 } 1120 }
948 1121
949 ecb_function_ ecb_const int ecb_ld64 (uint64_t x); 1122 ecb_function_ ecb_const int ecb_ld64 (uint64_t x);
950 ecb_function_ ecb_const int ecb_ld64 (uint64_t x) 1123 ecb_function_ ecb_const int ecb_ld64 (uint64_t x)
951 { 1124 {
1125#if 1400 <= _MSC_VER && (_M_X64 || _M_IA64 || _M_ARM)
1126 unsigned long r;
1127 _BitScanReverse64 (&r, x);
1128 return (int)r;
1129#else
952 int r = 0; 1130 int r = 0;
953 1131
954 if (x >> 32) { x >>= 32; r += 32; } 1132 if (x >> 32) { x >>= 32; r += 32; }
955 1133
956 return r + ecb_ld32 (x); 1134 return r + ecb_ld32 (x);
1135#endif
957 } 1136 }
958#endif 1137#endif
959 1138
960ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x); 1139ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x);
961ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); } 1140ecb_function_ ecb_const ecb_bool ecb_is_pot32 (uint32_t x) { return !(x & (x - 1)); }
… …
1018ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); } 1197ecb_inline ecb_const uint32_t ecb_rotr32 (uint32_t x, unsigned int count) { return (x << (32 - count)) | (x >> count); }
1019ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); } 1198ecb_inline ecb_const uint64_t ecb_rotl64 (uint64_t x, unsigned int count) { return (x >> (64 - count)) | (x << count); }
1020ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); } 1199ecb_inline ecb_const uint64_t ecb_rotr64 (uint64_t x, unsigned int count) { return (x << (64 - count)) | (x >> count); }
1021 1200
1022#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64)) 1201#if ECB_GCC_VERSION(4,3) || (ECB_CLANG_BUILTIN(__builtin_bswap32) && ECB_CLANG_BUILTIN(__builtin_bswap64))
1202 #if ECB_GCC_VERSION(4,8) || ECB_CLANG_BUILTIN(__builtin_bswap16)
1203 #define ecb_bswap16(x) __builtin_bswap16 (x)
1204 #else
1023 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16) 1205 #define ecb_bswap16(x) (__builtin_bswap32 (x) >> 16)
1206 #endif
1024 #define ecb_bswap32(x) __builtin_bswap32 (x) 1207 #define ecb_bswap32(x) __builtin_bswap32 (x)
1025 #define ecb_bswap64(x) __builtin_bswap64 (x) 1208 #define ecb_bswap64(x) __builtin_bswap64 (x)
1209#elif _MSC_VER
1210 #include <stdlib.h>
1211 #define ecb_bswap16(x) ((uint16_t)_byteswap_ushort ((uint16_t)(x)))
1212 #define ecb_bswap32(x) ((uint32_t)_byteswap_ulong ((uint32_t)(x)))
1213 #define ecb_bswap64(x) ((uint64_t)_byteswap_uint64 ((uint64_t)(x)))
1026#else 1214#else
1027 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x); 1215 ecb_function_ ecb_const uint16_t ecb_bswap16 (uint16_t x);
1028 ecb_function_ ecb_const uint16_t 1216 ecb_function_ ecb_const uint16_t
1029 ecb_bswap16 (uint16_t x) 1217 ecb_bswap16 (uint16_t x)
1030 { 1218 {
… …
1055#endif 1243#endif
1056 1244
1057/* try to tell the compiler that some condition is definitely true */ 1245/* try to tell the compiler that some condition is definitely true */
1058#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0 1246#define ecb_assume(cond) if (!(cond)) ecb_unreachable (); else 0
1059 1247
1060ecb_inline ecb_const unsigned char ecb_byteorder_helper (void); 1248ecb_inline ecb_const uint32_t ecb_byteorder_helper (void);
1061ecb_inline ecb_const unsigned char 1249ecb_inline ecb_const uint32_t
1062ecb_byteorder_helper (void) 1250ecb_byteorder_helper (void)
1063{ 1251{
1064 /* the union code still generates code under pressure in gcc, */ 1252 /* the union code still generates code under pressure in gcc, */
1065 /* but less than using pointers, and always seems to */ 1253 /* but less than using pointers, and always seems to */
1066 /* successfully return a constant. */ 1254 /* successfully return a constant. */
1067 /* the reason why we have this horrible preprocessor mess */ 1255 /* the reason why we have this horrible preprocessor mess */
1068 /* is to avoid it in all cases, at least on common architectures */ 1256 /* is to avoid it in all cases, at least on common architectures */
1069 /* or when using a recent enough gcc version (>= 4.6) */ 1257 /* or when using a recent enough gcc version (>= 4.6) */
1070#if __i386 || __i386__ || _M_X86 || __amd64 || __amd64__ || _M_X64
1071 return 0x44;
1072#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 1258#if (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__) \
1259 || ((__i386 || __i386__ || _M_IX86 || ECB_GCC_AMD64 || ECB_MSVC_AMD64) && !__VOS__)
1260 #define ECB_LITTLE_ENDIAN 1
1073 return 0x44; 1261 return 0x44332211;
1074#elif __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ 1262#elif (defined __BYTE_ORDER__ && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) \
1263 || ((__AARCH64EB__ || __MIPSEB__ || __ARMEB__) && !__VOS__)
1264 #define ECB_BIG_ENDIAN 1
1075 return 0x11; 1265 return 0x11223344;
1076#else 1266#else
1077 union 1267 union
1078 { 1268 {
1269 uint8_t c[4];
1079 uint32_t i; 1270 uint32_t u;
1080 uint8_t c;
1081 } u = { 0x11223344 }; 1271 } u = { 0x11, 0x22, 0x33, 0x44 };
1082 return u.c; 1272 return u.u;
1083#endif 1273#endif
1084} 1274}
1085 1275
1086ecb_inline ecb_const ecb_bool ecb_big_endian (void); 1276ecb_inline ecb_const ecb_bool ecb_big_endian (void);
1087ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11; } 1277ecb_inline ecb_const ecb_bool ecb_big_endian (void) { return ecb_byteorder_helper () == 0x11223344; }
1088ecb_inline ecb_const ecb_bool ecb_little_endian (void); 1278ecb_inline ecb_const ecb_bool ecb_little_endian (void);
1089ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44; } 1279ecb_inline ecb_const ecb_bool ecb_little_endian (void) { return ecb_byteorder_helper () == 0x44332211; }
1090 1280
1091#if ECB_GCC_VERSION(3,0) || ECB_C99 1281#if ECB_GCC_VERSION(3,0) || ECB_C99
1092 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0)) 1282 #define ecb_mod(m,n) ((m) % (n) + ((m) % (n) < 0 ? (n) : 0))
1093#else 1283#else
1094 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n))) 1284 #define ecb_mod(m,n) ((m) < 0 ? ((n) - 1 - ((-1 - (m)) % (n))) : ((m) % (n)))
… …
1119 } 1309 }
1120#else 1310#else
1121 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0])) 1311 #define ecb_array_length(name) (sizeof (name) / sizeof (name [0]))
1122#endif 1312#endif
1123 1313
1314ecb_function_ ecb_const uint32_t ecb_binary16_to_binary32 (uint32_t x);
1315ecb_function_ ecb_const uint32_t
1316ecb_binary16_to_binary32 (uint32_t x)
1317{
1318 unsigned int s = (x & 0x8000) << (31 - 15);
1319 int e = (x >> 10) & 0x001f;
1320 unsigned int m = x & 0x03ff;
1321
1322 if (ecb_expect_false (e == 31))
1323 /* infinity or NaN */
1324 e = 255 - (127 - 15);
1325 else if (ecb_expect_false (!e))
1326 {
1327 if (ecb_expect_true (!m))
1328 /* zero, handled by code below by forcing e to 0 */
1329 e = 0 - (127 - 15);
1330 else
1331 {
1332 /* subnormal, renormalise */
1333 unsigned int s = 10 - ecb_ld32 (m);
1334
1335 m = (m << s) & 0x3ff; /* mask implicit bit */
1336 e -= s - 1;
1337 }
1338 }
1339
1340 /* e and m now are normalised, or zero, (or inf or nan) */
1341 e += 127 - 15;
1342
1343 return s | (e << 23) | (m << (23 - 10));
1344}
1345
1346ecb_function_ ecb_const uint16_t ecb_binary32_to_binary16 (uint32_t x);
1347ecb_function_ ecb_const uint16_t
1348ecb_binary32_to_binary16 (uint32_t x)
1349{
1350 unsigned int s = (x >> 16) & 0x00008000; /* sign bit, the easy part */
1351 unsigned int e = ((x >> 23) & 0x000000ff) - (127 - 15); /* the desired exponent */
1352 unsigned int m = x & 0x007fffff;
1353
1354 x &= 0x7fffffff;
1355
1356 /* if it's within range of binary16 normals, use fast path */
1357 if (ecb_expect_true (0x38800000 <= x && x <= 0x477fefff))
1358 {
1359 /* mantissa round-to-even */
1360 m += 0x00000fff + ((m >> (23 - 10)) & 1);
1361
1362 /* handle overflow */
1363 if (ecb_expect_false (m >= 0x00800000))
1364 {
1365 m >>= 1;
1366 e += 1;
1367 }
1368
1369 return s | (e << 10) | (m >> (23 - 10));
1370 }
1371
1372 /* handle large numbers and infinity */
1373 if (ecb_expect_true (0x477fefff < x && x <= 0x7f800000))
1374 return s | 0x7c00;
1375
1376 /* handle zero, subnormals and small numbers */
1377 if (ecb_expect_true (x < 0x38800000))
1378 {
1379 /* zero */
1380 if (ecb_expect_true (!x))
1381 return s;
1382
1383 /* handle subnormals */
1384
1385 /* too small, will be zero */
1386 if (e < (14 - 24)) /* might not be sharp, but is good enough */
1387 return s;
1388
1389 m |= 0x00800000; /* make implicit bit explicit */
1390
1391 /* very tricky - we need to round to the nearest e (+10) bit value */
1392 {
1393 unsigned int bits = 14 - e;
1394 unsigned int half = (1 << (bits - 1)) - 1;
1395 unsigned int even = (m >> bits) & 1;
1396
1397 /* if this overflows, we will end up with a normalised number */
1398 m = (m + half + even) >> bits;
1399 }
1400
1401 return s | m;
1402 }
1403
1404 /* handle NaNs, preserve leftmost nan bits, but make sure we don't turn them into infinities */
1405 m >>= 13;
1406
1407 return s | 0x7c00 | m | !m;
1408}
1409
1124/*******************************************************************************/ 1410/*******************************************************************************/
1125/* floating point stuff, can be disabled by defining ECB_NO_LIBM */ 1411/* floating point stuff, can be disabled by defining ECB_NO_LIBM */
1126 1412
1127/* basically, everything uses "ieee pure-endian" floating point numbers */ 1413/* basically, everything uses "ieee pure-endian" floating point numbers */
1128/* the only noteworthy exception is ancient armle, which uses order 43218765 */ 1414/* the only noteworthy exception is ancient armle, which uses order 43218765 */
1129#if 0 \ 1415#if 0 \
1130 || __i386 || __i386__ \ 1416 || __i386 || __i386__ \
1131 || __amd64 || __amd64__ || __x86_64 || __x86_64__ \ 1417 || ECB_GCC_AMD64 \
1132 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \ 1418 || __powerpc__ || __ppc__ || __powerpc64__ || __ppc64__ \
1133 || defined __s390__ || defined __s390x__ \ 1419 || defined __s390__ || defined __s390x__ \
1134 || defined __mips__ \ 1420 || defined __mips__ \
1135 || defined __alpha__ \ 1421 || defined __alpha__ \
1136 || defined __hppa__ \ 1422 || defined __hppa__ \
1137 || defined __ia64__ \ 1423 || defined __ia64__ \
1138 || defined __m68k__ \ 1424 || defined __m68k__ \
1139 || defined __m88k__ \ 1425 || defined __m88k__ \
1140 || defined __sh__ \ 1426 || defined __sh__ \
1141 || defined _M_IX86 || defined _M_AMD64 || defined _M_IA64 \ 1427 || defined _M_IX86 || defined ECB_MSVC_AMD64 || defined _M_IA64 \
1142 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \ 1428 || (defined __arm__ && (defined __ARM_EABI__ || defined __EABI__ || defined __VFP_FP__ || defined _WIN32_WCE || defined __ANDROID__)) \
1143 || defined __aarch64__ 1429 || defined __aarch64__
1144 #define ECB_STDFP 1 1430 #define ECB_STDFP 1
1145 #include <string.h> /* for memcpy */ 1431 #include <string.h> /* for memcpy */
1146#else 1432#else
… …
1164 #define ECB_NAN ECB_INFINITY 1450 #define ECB_NAN ECB_INFINITY
1165 #endif 1451 #endif
1166 1452
1167 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L 1453 #if ECB_C99 || _XOPEN_VERSION >= 600 || _POSIX_VERSION >= 200112L
1168 #define ecb_ldexpf(x,e) ldexpf ((x), (e)) 1454 #define ecb_ldexpf(x,e) ldexpf ((x), (e))
1455 #define ecb_frexpf(x,e) frexpf ((x), (e))
1169 #else 1456 #else
1170 #define ecb_ldexpf(x,e) (float) ldexp ((x), (e)) 1457 #define ecb_ldexpf(x,e) (float) ldexp ((double) (x), (e))
1458 #define ecb_frexpf(x,e) (float) frexp ((double) (x), (e))
1171 #endif 1459 #endif
1172
1173 /* converts an ieee half/binary16 to a float */
1174 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1175 ecb_function_ ecb_const float
1176 ecb_binary16_to_float (uint16_t x)
1177 {
1178 int e = (x >> 10) & 0x1f;
1179 int m = x & 0x3ff;
1180 float r;
1181
1182 if (!e ) r = ecb_ldexpf (m , -24);
1183 else if (e != 31) r = ecb_ldexpf (m + 0x400, e - 25);
1184 else if (m ) r = ECB_NAN;
1185 else r = ECB_INFINITY;
1186
1187 return x & 0x8000 ? -r : r;
1188 }
1189 1460
1190 /* convert a float to ieee single/binary32 */ 1461 /* convert a float to ieee single/binary32 */
1191 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x); 1462 ecb_function_ ecb_const uint32_t ecb_float_to_binary32 (float x);
1192 ecb_function_ ecb_const uint32_t 1463 ecb_function_ ecb_const uint32_t
1193 ecb_float_to_binary32 (float x) 1464 ecb_float_to_binary32 (float x)
… …
1204 if (x == 0e0f ) return 0x00000000U; 1475 if (x == 0e0f ) return 0x00000000U;
1205 if (x > +3.40282346638528860e+38f) return 0x7f800000U; 1476 if (x > +3.40282346638528860e+38f) return 0x7f800000U;
1206 if (x < -3.40282346638528860e+38f) return 0xff800000U; 1477 if (x < -3.40282346638528860e+38f) return 0xff800000U;
1207 if (x != x ) return 0x7fbfffffU; 1478 if (x != x ) return 0x7fbfffffU;
1208 1479
1209 m = frexpf (x, &e) * 0x1000000U; 1480 m = ecb_frexpf (x, &e) * 0x1000000U;
1210 1481
1211 r = m & 0x80000000U; 1482 r = m & 0x80000000U;
1212 1483
1213 if (r) 1484 if (r)
1214 m = -m; 1485 m = -m;
… …
1325 #endif 1596 #endif
1326 1597
1327 return r; 1598 return r;
1328 } 1599 }
1329 1600
1601 /* convert a float to ieee half/binary16 */
1602 ecb_function_ ecb_const uint16_t ecb_float_to_binary16 (float x);
1603 ecb_function_ ecb_const uint16_t
1604 ecb_float_to_binary16 (float x)
1605 {
1606 return ecb_binary32_to_binary16 (ecb_float_to_binary32 (x));
1607 }
1608
1609 /* convert an ieee half/binary16 to float */
1610 ecb_function_ ecb_const float ecb_binary16_to_float (uint16_t x);
1611 ecb_function_ ecb_const float
1612 ecb_binary16_to_float (uint16_t x)
1613 {
1614 return ecb_binary32_to_float (ecb_binary16_to_binary32 (x));
1615 }
1616
1330#endif 1617#endif
1331 1618
1332#endif 1619#endif
1333 1620
1334/* ECB.H END */ 1621/* ECB.H END */
1335 1622
1336#if ECB_MEMORY_FENCE_NEEDS_PTHREADS 1623#if ECB_MEMORY_FENCE_NEEDS_PTHREADS
1337/* if your architecture doesn't need memory fences, e.g. because it is 1624/* if your architecture doesn't need memory fences, e.g. because it is
1338 * single-cpu/core, or if you use libev in a project that doesn't use libev 1625 * single-cpu/core, or if you use libev in a project that doesn't use libev
1339 * from multiple threads, then you can define ECB_AVOID_PTHREADS when compiling 1626 * from multiple threads, then you can define ECB_NO_THREADS when compiling
1340 * libev, in which cases the memory fences become nops. 1627 * libev, in which cases the memory fences become nops.
1341 * alternatively, you can remove this #error and link against libpthread, 1628 * alternatively, you can remove this #error and link against libpthread,
1342 * which will then provide the memory fences. 1629 * which will then provide the memory fences.
1343 */ 1630 */
1344# error "memory fences not defined for your architecture, please report" 1631# error "memory fences not defined for your architecture, please report"
… …
1348# define ECB_MEMORY_FENCE do { } while (0) 1635# define ECB_MEMORY_FENCE do { } while (0)
1349# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE 1636# define ECB_MEMORY_FENCE_ACQUIRE ECB_MEMORY_FENCE
1350# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE 1637# define ECB_MEMORY_FENCE_RELEASE ECB_MEMORY_FENCE
1351#endif 1638#endif
1352 1639
1353#define expect_false(cond) ecb_expect_false (cond)
1354#define expect_true(cond) ecb_expect_true (cond)
1355#define noinline ecb_noinline
1356
1357#define inline_size ecb_inline 1640#define inline_size ecb_inline
1358 1641
1359#if EV_FEATURE_CODE 1642#if EV_FEATURE_CODE
1360# define inline_speed ecb_inline 1643# define inline_speed ecb_inline
1361#else 1644#else
1362# define inline_speed static noinline 1645# define inline_speed ecb_noinline static
1363#endif 1646#endif
1647
1648/*****************************************************************************/
1649/* raw syscall wrappers */
1650
1651#if EV_NEED_SYSCALL
1652
1653#include <sys/syscall.h>
1654
1655/*
1656 * define some syscall wrappers for common architectures
1657 * this is mostly for nice looks during debugging, not performance.
1658 * our syscalls return < 0, not == -1, on error. which is good
1659 * enough for linux aio.
1660 * TODO: arm is also common nowadays, maybe even mips and x86
1661 * TODO: after implementing this, it suddenly looks like overkill, but its hard to remove...
1662 */
1663#if __GNUC__ && __linux && ECB_AMD64 && !defined __OPTIMIZE_SIZE__
1664 /* the costly errno access probably kills this for size optimisation */
1665
1666 #define ev_syscall(nr,narg,arg1,arg2,arg3,arg4,arg5,arg6) \
1667 ({ \
1668 long res; \
1669 register unsigned long r6 __asm__ ("r9" ); \
1670 register unsigned long r5 __asm__ ("r8" ); \
1671 register unsigned long r4 __asm__ ("r10"); \
1672 register unsigned long r3 __asm__ ("rdx"); \
1673 register unsigned long r2 __asm__ ("rsi"); \
1674 register unsigned long r1 __asm__ ("rdi"); \
1675 if (narg >= 6) r6 = (unsigned long)(arg6); \
1676 if (narg >= 5) r5 = (unsigned long)(arg5); \
1677 if (narg >= 4) r4 = (unsigned long)(arg4); \
1678 if (narg >= 3) r3 = (unsigned long)(arg3); \
1679 if (narg >= 2) r2 = (unsigned long)(arg2); \
1680 if (narg >= 1) r1 = (unsigned long)(arg1); \
1681 __asm__ __volatile__ ( \
1682 "syscall\n\t" \
1683 : "=a" (res) \
1684 : "0" (nr), "r" (r1), "r" (r2), "r" (r3), "r" (r4), "r" (r5) \
1685 : "cc", "r11", "cx", "memory"); \
1686 errno = -res; \
1687 res; \
1688 })
1689
1690#endif
1691
1692#ifdef ev_syscall
1693 #define ev_syscall0(nr) ev_syscall (nr, 0, 0, 0, 0, 0, 0, 0)
1694 #define ev_syscall1(nr,arg1) ev_syscall (nr, 1, arg1, 0, 0, 0, 0, 0)
1695 #define ev_syscall2(nr,arg1,arg2) ev_syscall (nr, 2, arg1, arg2, 0, 0, 0, 0)
1696 #define ev_syscall3(nr,arg1,arg2,arg3) ev_syscall (nr, 3, arg1, arg2, arg3, 0, 0, 0)
1697 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) ev_syscall (nr, 3, arg1, arg2, arg3, arg4, 0, 0)
1698 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) ev_syscall (nr, 5, arg1, arg2, arg3, arg4, arg5, 0)
1699 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) ev_syscall (nr, 6, arg1, arg2, arg3, arg4, arg5,arg6)
1700#else
1701 #define ev_syscall0(nr) syscall (nr)
1702 #define ev_syscall1(nr,arg1) syscall (nr, arg1)
1703 #define ev_syscall2(nr,arg1,arg2) syscall (nr, arg1, arg2)
1704 #define ev_syscall3(nr,arg1,arg2,arg3) syscall (nr, arg1, arg2, arg3)
1705 #define ev_syscall4(nr,arg1,arg2,arg3,arg4) syscall (nr, arg1, arg2, arg3, arg4)
1706 #define ev_syscall5(nr,arg1,arg2,arg3,arg4,arg5) syscall (nr, arg1, arg2, arg3, arg4, arg5)
1707 #define ev_syscall6(nr,arg1,arg2,arg3,arg4,arg5,arg6) syscall (nr, arg1, arg2, arg3, arg4, arg5,arg6)
1708#endif
1709
1710#endif
1711
1712/*****************************************************************************/
1364 1713
1365#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1) 1714#define NUMPRI (EV_MAXPRI - EV_MINPRI + 1)
1366 1715
1367#if EV_MINPRI == EV_MAXPRI 1716#if EV_MINPRI == EV_MAXPRI
1368# define ABSPRI(w) (((W)w), 0) 1717# define ABSPRI(w) (((W)w), 0)
1369#else 1718#else
1370# define ABSPRI(w) (((W)w)->priority - EV_MINPRI) 1719# define ABSPRI(w) (((W)w)->priority - EV_MINPRI)
1371#endif 1720#endif
1372 1721
1373#define EMPTY /* required for microsofts broken pseudo-c compiler */ 1722#define EMPTY /* required for microsofts broken pseudo-c compiler */
1374#define EMPTY2(a,b) /* used to suppress some warnings */
1375 1723
1376typedef ev_watcher *W; 1724typedef ev_watcher *W;
1377typedef ev_watcher_list *WL; 1725typedef ev_watcher_list *WL;
1378typedef ev_watcher_time *WT; 1726typedef ev_watcher_time *WT;
1379 1727
… …
1404# include "ev_win32.c" 1752# include "ev_win32.c"
1405#endif 1753#endif
1406 1754
1407/*****************************************************************************/ 1755/*****************************************************************************/
1408 1756
1757#if EV_USE_LINUXAIO
1758# include <linux/aio_abi.h> /* probably only needed for aio_context_t */
1759#endif
1760
1409/* define a suitable floor function (only used by periodics atm) */ 1761/* define a suitable floor function (only used by periodics atm) */
1410 1762
1411#if EV_USE_FLOOR 1763#if EV_USE_FLOOR
1412# include <math.h> 1764# include <math.h>
1413# define ev_floor(v) floor (v) 1765# define ev_floor(v) floor (v)
1414#else 1766#else
1415 1767
1416#include <float.h> 1768#include <float.h>
1417 1769
1418/* a floor() replacement function, should be independent of ev_tstamp type */ 1770/* a floor() replacement function, should be independent of ev_tstamp type */
1771ecb_noinline
1419static ev_tstamp noinline 1772static ev_tstamp
1420ev_floor (ev_tstamp v) 1773ev_floor (ev_tstamp v)
1421{ 1774{
1422 /* the choice of shift factor is not terribly important */ 1775 /* the choice of shift factor is not terribly important */
1423#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */ 1776#if FLT_RADIX != 2 /* assume FLT_RADIX == 10 */
1424 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.; 1777 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 10000000000000000000. : 1000000000.;
1425#else 1778#else
1426 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.; 1779 const ev_tstamp shift = sizeof (unsigned long) >= 8 ? 18446744073709551616. : 4294967296.;
1427#endif 1780#endif
1428 1781
1782 /* special treatment for negative arguments */
1783 if (ecb_expect_false (v < 0.))
1784 {
1785 ev_tstamp f = -ev_floor (-v);
1786
1787 return f - (f == v ? 0 : 1);
1788 }
1789
1429 /* argument too large for an unsigned long? */ 1790 /* argument too large for an unsigned long? then reduce it */
1430 if (expect_false (v >= shift)) 1791 if (ecb_expect_false (v >= shift))
1431 { 1792 {
1432 ev_tstamp f; 1793 ev_tstamp f;
1433 1794
1434 if (v == v - 1.) 1795 if (v == v - 1.)
1435 return v; /* very large number */ 1796 return v; /* very large numbers are assumed to be integer */
1436 1797
1437 f = shift * ev_floor (v * (1. / shift)); 1798 f = shift * ev_floor (v * (1. / shift));
1438 return f + ev_floor (v - f); 1799 return f + ev_floor (v - f);
1439 } 1800 }
1440 1801
1441 /* special treatment for negative args? */
1442 if (expect_false (v < 0.))
1443 {
1444 ev_tstamp f = -ev_floor (-v);
1445
1446 return f - (f == v ? 0 : 1);
1447 }
1448
1449 /* fits into an unsigned long */ 1802 /* fits into an unsigned long */
1450 return (unsigned long)v; 1803 return (unsigned long)v;
1451} 1804}
1452 1805
1453#endif 1806#endif
… …
1456 1809
1457#ifdef __linux 1810#ifdef __linux
1458# include <sys/utsname.h> 1811# include <sys/utsname.h>
1459#endif 1812#endif
1460 1813
1461static unsigned int noinline ecb_cold 1814ecb_noinline ecb_cold
1815static unsigned int
1462ev_linux_version (void) 1816ev_linux_version (void)
1463{ 1817{
1464#ifdef __linux 1818#ifdef __linux
1465 unsigned int v = 0; 1819 unsigned int v = 0;
1466 struct utsname buf; 1820 struct utsname buf;
… …
1495} 1849}
1496 1850
1497/*****************************************************************************/ 1851/*****************************************************************************/
1498 1852
1499#if EV_AVOID_STDIO 1853#if EV_AVOID_STDIO
1500static void noinline ecb_cold 1854ecb_noinline ecb_cold
1855static void
1501ev_printerr (const char *msg) 1856ev_printerr (const char *msg)
1502{ 1857{
1503 write (STDERR_FILENO, msg, strlen (msg)); 1858 write (STDERR_FILENO, msg, strlen (msg));
1504} 1859}
1505#endif 1860#endif
1506 1861
1507static void (*syserr_cb)(const char *msg) EV_THROW; 1862static void (*syserr_cb)(const char *msg) EV_NOEXCEPT;
1508 1863
1509void ecb_cold 1864ecb_cold
1865void
1510ev_set_syserr_cb (void (*cb)(const char *msg) EV_THROW) EV_THROW 1866ev_set_syserr_cb (void (*cb)(const char *msg) EV_NOEXCEPT) EV_NOEXCEPT
1511{ 1867{
1512 syserr_cb = cb; 1868 syserr_cb = cb;
1513} 1869}
1514 1870
1515static void noinline ecb_cold 1871ecb_noinline ecb_cold
1872static void
1516ev_syserr (const char *msg) 1873ev_syserr (const char *msg)
1517{ 1874{
1518 if (!msg) 1875 if (!msg)
1519 msg = "(libev) system error"; 1876 msg = "(libev) system error";
1520 1877
… …
1533 abort (); 1890 abort ();
1534 } 1891 }
1535} 1892}
1536 1893
1537static void * 1894static void *
1538ev_realloc_emul (void *ptr, long size) EV_THROW 1895ev_realloc_emul (void *ptr, long size) EV_NOEXCEPT
1539{ 1896{
1540 /* some systems, notably openbsd and darwin, fail to properly 1897 /* some systems, notably openbsd and darwin, fail to properly
1541 * implement realloc (x, 0) (as required by both ansi c-89 and 1898 * implement realloc (x, 0) (as required by both ansi c-89 and
1542 * the single unix specification, so work around them here. 1899 * the single unix specification, so work around them here.
1543 * recently, also (at least) fedora and debian started breaking it, 1900 * recently, also (at least) fedora and debian started breaking it,
… …
1549 1906
1550 free (ptr); 1907 free (ptr);
1551 return 0; 1908 return 0;
1552} 1909}
1553 1910
1554static void *(*alloc)(void *ptr, long size) EV_THROW = ev_realloc_emul; 1911static void *(*alloc)(void *ptr, long size) EV_NOEXCEPT = ev_realloc_emul;
1555 1912
1556void ecb_cold 1913ecb_cold
1914void
1557ev_set_allocator (void *(*cb)(void *ptr, long size) EV_THROW) EV_THROW 1915ev_set_allocator (void *(*cb)(void *ptr, long size) EV_NOEXCEPT) EV_NOEXCEPT
1558{ 1916{
1559 alloc = cb; 1917 alloc = cb;
1560} 1918}
1561 1919
1562inline_speed void * 1920inline_speed void *
… …
1589typedef struct 1947typedef struct
1590{ 1948{
1591 WL head; 1949 WL head;
1592 unsigned char events; /* the events watched for */ 1950 unsigned char events; /* the events watched for */
1593 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */ 1951 unsigned char reify; /* flag set when this ANFD needs reification (EV_ANFD_REIFY, EV__IOFDSET) */
1594 unsigned char emask; /* the epoll backend stores the actual kernel mask in here */ 1952 unsigned char emask; /* some backends store the actual kernel mask in here */
1595 unsigned char unused; 1953 unsigned char eflags; /* flags field for use by backends */
1596#if EV_USE_EPOLL 1954#if EV_USE_EPOLL
1597 unsigned int egen; /* generation counter to counter epoll bugs */ 1955 unsigned int egen; /* generation counter to counter epoll bugs */
1598#endif 1956#endif
1599#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP 1957#if EV_SELECT_IS_WINSOCKET || EV_USE_IOCP
1600 SOCKET handle; 1958 SOCKET handle;
… …
1654 static struct ev_loop default_loop_struct; 2012 static struct ev_loop default_loop_struct;
1655 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */ 2013 EV_API_DECL struct ev_loop *ev_default_loop_ptr = 0; /* needs to be initialised to make it a definition despite extern */
1656 2014
1657#else 2015#else
1658 2016
1659 EV_API_DECL ev_tstamp ev_rt_now = 0; /* needs to be initialised to make it a definition despite extern */ 2017 EV_API_DECL ev_tstamp ev_rt_now = EV_TS_CONST (0.); /* needs to be initialised to make it a definition despite extern */
1660 #define VAR(name,decl) static decl; 2018 #define VAR(name,decl) static decl;
1661 #include "ev_vars.h" 2019 #include "ev_vars.h"
1662 #undef VAR 2020 #undef VAR
1663 2021
1664 static int ev_default_loop_ptr; 2022 static int ev_default_loop_ptr;
1665 2023
1666#endif 2024#endif
1667 2025
1668#if EV_FEATURE_API 2026#if EV_FEATURE_API
1669# define EV_RELEASE_CB if (expect_false (release_cb)) release_cb (EV_A) 2027# define EV_RELEASE_CB if (ecb_expect_false (release_cb)) release_cb (EV_A)
1670# define EV_ACQUIRE_CB if (expect_false (acquire_cb)) acquire_cb (EV_A) 2028# define EV_ACQUIRE_CB if (ecb_expect_false (acquire_cb)) acquire_cb (EV_A)
1671# define EV_INVOKE_PENDING invoke_cb (EV_A) 2029# define EV_INVOKE_PENDING invoke_cb (EV_A)
1672#else 2030#else
1673# define EV_RELEASE_CB (void)0 2031# define EV_RELEASE_CB (void)0
1674# define EV_ACQUIRE_CB (void)0 2032# define EV_ACQUIRE_CB (void)0
1675# define EV_INVOKE_PENDING ev_invoke_pending (EV_A) 2033# define EV_INVOKE_PENDING ev_invoke_pending (EV_A)
… …
1679 2037
1680/*****************************************************************************/ 2038/*****************************************************************************/
1681 2039
1682#ifndef EV_HAVE_EV_TIME 2040#ifndef EV_HAVE_EV_TIME
1683ev_tstamp 2041ev_tstamp
1684ev_time (void) EV_THROW 2042ev_time (void) EV_NOEXCEPT
1685{ 2043{
1686#if EV_USE_REALTIME 2044#if EV_USE_REALTIME
1687 if (expect_true (have_realtime)) 2045 if (ecb_expect_true (have_realtime))
1688 { 2046 {
1689 struct timespec ts; 2047 struct timespec ts;
1690 clock_gettime (CLOCK_REALTIME, &ts); 2048 clock_gettime (CLOCK_REALTIME, &ts);
1691 return ts.tv_sec + ts.tv_nsec * 1e-9; 2049 return EV_TS_GET (ts);
1692 } 2050 }
1693#endif 2051#endif
1694 2052
2053 {
1695 struct timeval tv; 2054 struct timeval tv;
1696 gettimeofday (&tv, 0); 2055 gettimeofday (&tv, 0);
1697 return tv.tv_sec + tv.tv_usec * 1e-6; 2056 return EV_TV_GET (tv);
2057 }
1698} 2058}
1699#endif 2059#endif
1700 2060
1701inline_size ev_tstamp 2061inline_size ev_tstamp
1702get_clock (void) 2062get_clock (void)
1703{ 2063{
1704#if EV_USE_MONOTONIC 2064#if EV_USE_MONOTONIC
1705 if (expect_true (have_monotonic)) 2065 if (ecb_expect_true (have_monotonic))
1706 { 2066 {
1707 struct timespec ts; 2067 struct timespec ts;
1708 clock_gettime (CLOCK_MONOTONIC, &ts); 2068 clock_gettime (CLOCK_MONOTONIC, &ts);
1709 return ts.tv_sec + ts.tv_nsec * 1e-9; 2069 return EV_TS_GET (ts);
1710 } 2070 }
1711#endif 2071#endif
1712 2072
1713 return ev_time (); 2073 return ev_time ();
1714} 2074}
1715 2075
1716#if EV_MULTIPLICITY 2076#if EV_MULTIPLICITY
1717ev_tstamp 2077ev_tstamp
1718ev_now (EV_P) EV_THROW 2078ev_now (EV_P) EV_NOEXCEPT
1719{ 2079{
1720 return ev_rt_now; 2080 return ev_rt_now;
1721} 2081}
1722#endif 2082#endif
1723 2083
1724void 2084void
1725ev_sleep (ev_tstamp delay) EV_THROW 2085ev_sleep (ev_tstamp delay) EV_NOEXCEPT
1726{ 2086{
1727 if (delay > 0.) 2087 if (delay > EV_TS_CONST (0.))
1728 { 2088 {
1729#if EV_USE_NANOSLEEP 2089#if EV_USE_NANOSLEEP
1730 struct timespec ts; 2090 struct timespec ts;
1731 2091
1732 EV_TS_SET (ts, delay); 2092 EV_TS_SET (ts, delay);
1733 nanosleep (&ts, 0); 2093 nanosleep (&ts, 0);
1734#elif defined _WIN32 2094#elif defined _WIN32
2095 /* maybe this should round up, as ms is very low resolution */
2096 /* compared to select (µs) or nanosleep (ns) */
1735 Sleep ((unsigned long)(delay * 1e3)); 2097 Sleep ((unsigned long)(EV_TS_TO_MSEC (delay)));
1736#else 2098#else
1737 struct timeval tv; 2099 struct timeval tv;
1738 2100
1739 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */ 2101 /* here we rely on sys/time.h + sys/types.h + unistd.h providing select */
1740 /* something not guaranteed by newer posix versions, but guaranteed */ 2102 /* something not guaranteed by newer posix versions, but guaranteed */
… …
1770 } 2132 }
1771 2133
1772 return ncur; 2134 return ncur;
1773} 2135}
1774 2136
1775static void * noinline ecb_cold 2137ecb_noinline ecb_cold
2138static void *
1776array_realloc (int elem, void *base, int *cur, int cnt) 2139array_realloc (int elem, void *base, int *cur, int cnt)
1777{ 2140{
1778 *cur = array_nextsize (elem, *cur, cnt); 2141 *cur = array_nextsize (elem, *cur, cnt);
1779 return ev_realloc (base, elem * *cur); 2142 return ev_realloc (base, elem * *cur);
1780} 2143}
1781 2144
2145#define array_needsize_noinit(base,offset,count)
2146
1782#define array_init_zero(base,count) \ 2147#define array_needsize_zerofill(base,offset,count) \
1783 memset ((void *)(base), 0, sizeof (*(base)) * (count)) 2148 memset ((void *)(base + offset), 0, sizeof (*(base)) * (count))
1784 2149
1785#define array_needsize(type,base,cur,cnt,init) \ 2150#define array_needsize(type,base,cur,cnt,init) \
1786 if (expect_false ((cnt) > (cur))) \ 2151 if (ecb_expect_false ((cnt) > (cur))) \
1787 { \ 2152 { \
1788 int ecb_unused ocur_ = (cur); \ 2153 ecb_unused int ocur_ = (cur); \
1789 (base) = (type *)array_realloc \ 2154 (base) = (type *)array_realloc \
1790 (sizeof (type), (base), &(cur), (cnt)); \ 2155 (sizeof (type), (base), &(cur), (cnt)); \
1791 init ((base) + (ocur_), (cur) - ocur_); \ 2156 init ((base), ocur_, ((cur) - ocur_)); \
1792 } 2157 }
1793 2158
1794#if 0 2159#if 0
1795#define array_slim(type,stem) \ 2160#define array_slim(type,stem) \
1796 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \ 2161 if (stem ## max < array_roundsize (stem ## cnt >> 2)) \
… …
1805 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0 2170 ev_free (stem ## s idx); stem ## cnt idx = stem ## max idx = 0; stem ## s idx = 0
1806 2171
1807/*****************************************************************************/ 2172/*****************************************************************************/
1808 2173
1809/* dummy callback for pending events */ 2174/* dummy callback for pending events */
1810static void noinline 2175ecb_noinline
2176static void
1811pendingcb (EV_P_ ev_prepare *w, int revents) 2177pendingcb (EV_P_ ev_prepare *w, int revents)
1812{ 2178{
1813} 2179}
1814 2180
1815void noinline 2181ecb_noinline
2182void
1816ev_feed_event (EV_P_ void *w, int revents) EV_THROW 2183ev_feed_event (EV_P_ void *w, int revents) EV_NOEXCEPT
1817{ 2184{
1818 W w_ = (W)w; 2185 W w_ = (W)w;
1819 int pri = ABSPRI (w_); 2186 int pri = ABSPRI (w_);
1820 2187
1821 if (expect_false (w_->pending)) 2188 if (ecb_expect_false (w_->pending))
1822 pendings [pri][w_->pending - 1].events |= revents; 2189 pendings [pri][w_->pending - 1].events |= revents;
1823 else 2190 else
1824 { 2191 {
1825 w_->pending = ++pendingcnt [pri]; 2192 w_->pending = ++pendingcnt [pri];
1826 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, EMPTY2); 2193 array_needsize (ANPENDING, pendings [pri], pendingmax [pri], w_->pending, array_needsize_noinit);
1827 pendings [pri][w_->pending - 1].w = w_; 2194 pendings [pri][w_->pending - 1].w = w_;
1828 pendings [pri][w_->pending - 1].events = revents; 2195 pendings [pri][w_->pending - 1].events = revents;
1829 } 2196 }
1830 2197
1831 pendingpri = NUMPRI - 1; 2198 pendingpri = NUMPRI - 1;
1832} 2199}
1833 2200
1834inline_speed void 2201inline_speed void
1835feed_reverse (EV_P_ W w) 2202feed_reverse (EV_P_ W w)
1836{ 2203{
1837 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, EMPTY2); 2204 array_needsize (W, rfeeds, rfeedmax, rfeedcnt + 1, array_needsize_noinit);
1838 rfeeds [rfeedcnt++] = w; 2205 rfeeds [rfeedcnt++] = w;
1839} 2206}
1840 2207
1841inline_size void 2208inline_size void
1842feed_reverse_done (EV_P_ int revents) 2209feed_reverse_done (EV_P_ int revents)
… …
1877inline_speed void 2244inline_speed void
1878fd_event (EV_P_ int fd, int revents) 2245fd_event (EV_P_ int fd, int revents)
1879{ 2246{
1880 ANFD *anfd = anfds + fd; 2247 ANFD *anfd = anfds + fd;
1881 2248
1882 if (expect_true (!anfd->reify)) 2249 if (ecb_expect_true (!anfd->reify))
1883 fd_event_nocheck (EV_A_ fd, revents); 2250 fd_event_nocheck (EV_A_ fd, revents);
1884} 2251}
1885 2252
1886void 2253void
1887ev_feed_fd_event (EV_P_ int fd, int revents) EV_THROW 2254ev_feed_fd_event (EV_P_ int fd, int revents) EV_NOEXCEPT
1888{ 2255{
1889 if (fd >= 0 && fd < anfdmax) 2256 if (fd >= 0 && fd < anfdmax)
1890 fd_event_nocheck (EV_A_ fd, revents); 2257 fd_event_nocheck (EV_A_ fd, revents);
1891} 2258}
1892 2259
… …
1929 ev_io *w; 2296 ev_io *w;
1930 2297
1931 unsigned char o_events = anfd->events; 2298 unsigned char o_events = anfd->events;
1932 unsigned char o_reify = anfd->reify; 2299 unsigned char o_reify = anfd->reify;
1933 2300
1934 anfd->reify = 0; 2301 anfd->reify = 0;
1935 2302
1936 /*if (expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */ 2303 /*if (ecb_expect_true (o_reify & EV_ANFD_REIFY)) probably a deoptimisation */
1937 { 2304 {
1938 anfd->events = 0; 2305 anfd->events = 0;
1939 2306
1940 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next) 2307 for (w = (ev_io *)anfd->head; w; w = (ev_io *)((WL)w)->next)
1941 anfd->events |= (unsigned char)w->events; 2308 anfd->events |= (unsigned char)w->events;
… …
1950 2317
1951 fdchangecnt = 0; 2318 fdchangecnt = 0;
1952} 2319}
1953 2320
1954/* something about the given fd changed */ 2321/* something about the given fd changed */
1955inline_size void 2322inline_size
2323void
1956fd_change (EV_P_ int fd, int flags) 2324fd_change (EV_P_ int fd, int flags)
1957{ 2325{
1958 unsigned char reify = anfds [fd].reify; 2326 unsigned char reify = anfds [fd].reify;
1959 anfds [fd].reify |= flags; 2327 anfds [fd].reify |= flags;
1960 2328
1961 if (expect_true (!reify)) 2329 if (ecb_expect_true (!reify))
1962 { 2330 {
1963 ++fdchangecnt; 2331 ++fdchangecnt;
1964 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, EMPTY2); 2332 array_needsize (int, fdchanges, fdchangemax, fdchangecnt, array_needsize_noinit);
1965 fdchanges [fdchangecnt - 1] = fd; 2333 fdchanges [fdchangecnt - 1] = fd;
1966 } 2334 }
1967} 2335}
1968 2336
1969/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */ 2337/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
1970inline_speed void ecb_cold 2338inline_speed ecb_cold void
1971fd_kill (EV_P_ int fd) 2339fd_kill (EV_P_ int fd)
1972{ 2340{
1973 ev_io *w; 2341 ev_io *w;
1974 2342
1975 while ((w = (ev_io *)anfds [fd].head)) 2343 while ((w = (ev_io *)anfds [fd].head))
… …
1978 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE); 2346 ev_feed_event (EV_A_ (W)w, EV_ERROR | EV_READ | EV_WRITE);
1979 } 2347 }
1980} 2348}
1981 2349
1982/* check whether the given fd is actually valid, for error recovery */ 2350/* check whether the given fd is actually valid, for error recovery */
1983inline_size int ecb_cold 2351inline_size ecb_cold int
1984fd_valid (int fd) 2352fd_valid (int fd)
1985{ 2353{
1986#ifdef _WIN32 2354#ifdef _WIN32
1987 return EV_FD_TO_WIN32_HANDLE (fd) != -1; 2355 return EV_FD_TO_WIN32_HANDLE (fd) != -1;
1988#else 2356#else
1989 return fcntl (fd, F_GETFD) != -1; 2357 return fcntl (fd, F_GETFD) != -1;
1990#endif 2358#endif
1991} 2359}
1992 2360
1993/* called on EBADF to verify fds */ 2361/* called on EBADF to verify fds */
1994static void noinline ecb_cold 2362ecb_noinline ecb_cold
2363static void
1995fd_ebadf (EV_P) 2364fd_ebadf (EV_P)
1996{ 2365{
1997 int fd; 2366 int fd;
1998 2367
1999 for (fd = 0; fd < anfdmax; ++fd) 2368 for (fd = 0; fd < anfdmax; ++fd)
… …
2001 if (!fd_valid (fd) && errno == EBADF) 2370 if (!fd_valid (fd) && errno == EBADF)
2002 fd_kill (EV_A_ fd); 2371 fd_kill (EV_A_ fd);
2003} 2372}
2004 2373
2005/* called on ENOMEM in select/poll to kill some fds and retry */ 2374/* called on ENOMEM in select/poll to kill some fds and retry */
2006static void noinline ecb_cold 2375ecb_noinline ecb_cold
2376static void
2007fd_enomem (EV_P) 2377fd_enomem (EV_P)
2008{ 2378{
2009 int fd; 2379 int fd;
2010 2380
2011 for (fd = anfdmax; fd--; ) 2381 for (fd = anfdmax; fd--; )
… …
2015 break; 2385 break;
2016 } 2386 }
2017} 2387}
2018 2388
2019/* usually called after fork if backend needs to re-arm all fds from scratch */ 2389/* usually called after fork if backend needs to re-arm all fds from scratch */
2020static void noinline 2390ecb_noinline
2391static void
2021fd_rearm_all (EV_P) 2392fd_rearm_all (EV_P)
2022{ 2393{
2023 int fd; 2394 int fd;
2024 2395
2025 for (fd = 0; fd < anfdmax; ++fd) 2396 for (fd = 0; fd < anfdmax; ++fd)
… …
2078 ev_tstamp minat; 2449 ev_tstamp minat;
2079 ANHE *minpos; 2450 ANHE *minpos;
2080 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1; 2451 ANHE *pos = heap + DHEAP * (k - HEAP0) + HEAP0 + 1;
2081 2452
2082 /* find minimum child */ 2453 /* find minimum child */
2083 if (expect_true (pos + DHEAP - 1 < E)) 2454 if (ecb_expect_true (pos + DHEAP - 1 < E))
2084 { 2455 {
2085 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2456 /* fast path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2086 if ( ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2457 if ( minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2087 if ( ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2458 if ( minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2088 if ( ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2459 if ( minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2089 } 2460 }
2090 else if (pos < E) 2461 else if (pos < E)
2091 { 2462 {
2092 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos)); 2463 /* slow path */ (minpos = pos + 0), (minat = ANHE_at (*minpos));
2093 if (pos + 1 < E && ANHE_at (pos [1]) < minat) (minpos = pos + 1), (minat = ANHE_at (*minpos)); 2464 if (pos + 1 < E && minat > ANHE_at (pos [1])) (minpos = pos + 1), (minat = ANHE_at (*minpos));
2094 if (pos + 2 < E && ANHE_at (pos [2]) < minat) (minpos = pos + 2), (minat = ANHE_at (*minpos)); 2465 if (pos + 2 < E && minat > ANHE_at (pos [2])) (minpos = pos + 2), (minat = ANHE_at (*minpos));
2095 if (pos + 3 < E && ANHE_at (pos [3]) < minat) (minpos = pos + 3), (minat = ANHE_at (*minpos)); 2466 if (pos + 3 < E && minat > ANHE_at (pos [3])) (minpos = pos + 3), (minat = ANHE_at (*minpos));
2096 } 2467 }
2097 else 2468 else
2098 break; 2469 break;
2099 2470
2100 if (ANHE_at (he) <= minat) 2471 if (ANHE_at (he) <= minat)
… …
2108 2479
2109 heap [k] = he; 2480 heap [k] = he;
2110 ev_active (ANHE_w (he)) = k; 2481 ev_active (ANHE_w (he)) = k;
2111} 2482}
2112 2483
2113#else /* 4HEAP */ 2484#else /* not 4HEAP */
2114 2485
2115#define HEAP0 1 2486#define HEAP0 1
2116#define HPARENT(k) ((k) >> 1) 2487#define HPARENT(k) ((k) >> 1)
2117#define UPHEAP_DONE(p,k) (!(p)) 2488#define UPHEAP_DONE(p,k) (!(p))
2118 2489
… …
2206 2577
2207/*****************************************************************************/ 2578/*****************************************************************************/
2208 2579
2209#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 2580#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2210 2581
2211static void noinline ecb_cold 2582ecb_noinline ecb_cold
2583static void
2212evpipe_init (EV_P) 2584evpipe_init (EV_P)
2213{ 2585{
2214 if (!ev_is_active (&pipe_w)) 2586 if (!ev_is_active (&pipe_w))
2215 { 2587 {
2216 int fds [2]; 2588 int fds [2];
… …
2256inline_speed void 2628inline_speed void
2257evpipe_write (EV_P_ EV_ATOMIC_T *flag) 2629evpipe_write (EV_P_ EV_ATOMIC_T *flag)
2258{ 2630{
2259 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */ 2631 ECB_MEMORY_FENCE; /* push out the write before this function was called, acquire flag */
2260 2632
2261 if (expect_true (*flag)) 2633 if (ecb_expect_true (*flag))
2262 return; 2634 return;
2263 2635
2264 *flag = 1; 2636 *flag = 1;
2265 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */ 2637 ECB_MEMORY_FENCE_RELEASE; /* make sure flag is visible before the wakeup */
2266 2638
… …
2287#endif 2659#endif
2288 { 2660 {
2289#ifdef _WIN32 2661#ifdef _WIN32
2290 WSABUF buf; 2662 WSABUF buf;
2291 DWORD sent; 2663 DWORD sent;
2292 buf.buf = &buf; 2664 buf.buf = (char *)&buf;
2293 buf.len = 1; 2665 buf.len = 1;
2294 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0); 2666 WSASend (EV_FD_TO_WIN32_HANDLE (evpipe [1]), &buf, 1, &sent, 0, 0, 0);
2295#else 2667#else
2296 write (evpipe [1], &(evpipe [1]), 1); 2668 write (evpipe [1], &(evpipe [1]), 1);
2297#endif 2669#endif
… …
2343 sig_pending = 0; 2715 sig_pending = 0;
2344 2716
2345 ECB_MEMORY_FENCE; 2717 ECB_MEMORY_FENCE;
2346 2718
2347 for (i = EV_NSIG - 1; i--; ) 2719 for (i = EV_NSIG - 1; i--; )
2348 if (expect_false (signals [i].pending)) 2720 if (ecb_expect_false (signals [i].pending))
2349 ev_feed_signal_event (EV_A_ i + 1); 2721 ev_feed_signal_event (EV_A_ i + 1);
2350 } 2722 }
2351#endif 2723#endif
2352 2724
2353#if EV_ASYNC_ENABLE 2725#if EV_ASYNC_ENABLE
… …
2369} 2741}
2370 2742
2371/*****************************************************************************/ 2743/*****************************************************************************/
2372 2744
2373void 2745void
2374ev_feed_signal (int signum) EV_THROW 2746ev_feed_signal (int signum) EV_NOEXCEPT
2375{ 2747{
2376#if EV_MULTIPLICITY 2748#if EV_MULTIPLICITY
2377 EV_P; 2749 EV_P;
2378 ECB_MEMORY_FENCE_ACQUIRE; 2750 ECB_MEMORY_FENCE_ACQUIRE;
2379 EV_A = signals [signum - 1].loop; 2751 EV_A = signals [signum - 1].loop;
… …
2394#endif 2766#endif
2395 2767
2396 ev_feed_signal (signum); 2768 ev_feed_signal (signum);
2397} 2769}
2398 2770
2399void noinline 2771ecb_noinline
2772void
2400ev_feed_signal_event (EV_P_ int signum) EV_THROW 2773ev_feed_signal_event (EV_P_ int signum) EV_NOEXCEPT
2401{ 2774{
2402 WL w; 2775 WL w;
2403 2776
2404 if (expect_false (signum <= 0 || signum >= EV_NSIG)) 2777 if (ecb_expect_false (signum <= 0 || signum >= EV_NSIG))
2405 return; 2778 return;
2406 2779
2407 --signum; 2780 --signum;
2408 2781
2409#if EV_MULTIPLICITY 2782#if EV_MULTIPLICITY
2410 /* it is permissible to try to feed a signal to the wrong loop */ 2783 /* it is permissible to try to feed a signal to the wrong loop */
2411 /* or, likely more useful, feeding a signal nobody is waiting for */ 2784 /* or, likely more useful, feeding a signal nobody is waiting for */
2412 2785
2413 if (expect_false (signals [signum].loop != EV_A)) 2786 if (ecb_expect_false (signals [signum].loop != EV_A))
2414 return; 2787 return;
2415#endif 2788#endif
2416 2789
2417 signals [signum].pending = 0; 2790 signals [signum].pending = 0;
2418 ECB_MEMORY_FENCE_RELEASE; 2791 ECB_MEMORY_FENCE_RELEASE;
… …
2502 2875
2503#endif 2876#endif
2504 2877
2505/*****************************************************************************/ 2878/*****************************************************************************/
2506 2879
2880#if EV_USE_TIMERFD
2881
2882static void periodics_reschedule (EV_P);
2883
2884static void
2885timerfdcb (EV_P_ ev_io *iow, int revents)
2886{
2887 struct itimerspec its = { 0 };
2888
2889 /* since we can't easily come zup with a (portable) maximum value of time_t,
2890 * we wake up once per month, which hopefully is rare enough to not
2891 * be a problem. */
2892 its.it_value.tv_sec = ev_rt_now + 86400 * 30;
2893 timerfd_settime (timerfd, TFD_TIMER_ABSTIME | TFD_TIMER_CANCEL_ON_SET, &its, 0);
2894
2895 ev_rt_now = ev_time ();
2896 /* periodics_reschedule only needs ev_rt_now */
2897 /* but maybe in the future we want the full treatment. */
2898 /*
2899 now_floor = EV_TS_CONST (0.);
2900 time_update (EV_A_ EV_TSTAMP_HUGE);
2901 */
2902 periodics_reschedule (EV_A);
2903}
2904
2905ecb_noinline ecb_cold
2906static void
2907evtimerfd_init (EV_P)
2908{
2909 if (!ev_is_active (&timerfd_w))
2910 {
2911 timerfd = timerfd_create (CLOCK_REALTIME, TFD_NONBLOCK | TFD_CLOEXEC);
2912
2913 if (timerfd >= 0)
2914 {
2915 fd_intern (timerfd); /* just to be sure */
2916
2917 ev_io_init (&timerfd_w, timerfdcb, timerfd, EV_READ);
2918 ev_set_priority (&timerfd_w, EV_MINPRI);
2919 ev_io_start (EV_A_ &timerfd_w);
2920 ev_unref (EV_A); /* watcher should not keep loop alive */
2921
2922 /* (re-) arm timer */
2923 timerfdcb (EV_A_ 0, 0);
2924 }
2925 }
2926}
2927
2928#endif
2929
2930/*****************************************************************************/
2931
2507#if EV_USE_IOCP 2932#if EV_USE_IOCP
2508# include "ev_iocp.c" 2933# include "ev_iocp.c"
2509#endif 2934#endif
2510#if EV_USE_PORT 2935#if EV_USE_PORT
2511# include "ev_port.c" 2936# include "ev_port.c"
… …
2514# include "ev_kqueue.c" 2939# include "ev_kqueue.c"
2515#endif 2940#endif
2516#if EV_USE_EPOLL 2941#if EV_USE_EPOLL
2517# include "ev_epoll.c" 2942# include "ev_epoll.c"
2518#endif 2943#endif
2944#if EV_USE_LINUXAIO
2945# include "ev_linuxaio.c"
2946#endif
2947#if EV_USE_IOURING
2948# include "ev_iouring.c"
2949#endif
2519#if EV_USE_POLL 2950#if EV_USE_POLL
2520# include "ev_poll.c" 2951# include "ev_poll.c"
2521#endif 2952#endif
2522#if EV_USE_SELECT 2953#if EV_USE_SELECT
2523# include "ev_select.c" 2954# include "ev_select.c"
2524#endif 2955#endif
2525 2956
2526int ecb_cold 2957ecb_cold int
2527ev_version_major (void) EV_THROW 2958ev_version_major (void) EV_NOEXCEPT
2528{ 2959{
2529 return EV_VERSION_MAJOR; 2960 return EV_VERSION_MAJOR;
2530} 2961}
2531 2962
2532int ecb_cold 2963ecb_cold int
2533ev_version_minor (void) EV_THROW 2964ev_version_minor (void) EV_NOEXCEPT
2534{ 2965{
2535 return EV_VERSION_MINOR; 2966 return EV_VERSION_MINOR;
2536} 2967}
2537 2968
2538/* return true if we are running with elevated privileges and should ignore env variables */ 2969/* return true if we are running with elevated privileges and should ignore env variables */
2539int inline_size ecb_cold 2970inline_size ecb_cold int
2540enable_secure (void) 2971enable_secure (void)
2541{ 2972{
2542#ifdef _WIN32 2973#ifdef _WIN32
2543 return 0; 2974 return 0;
2544#else 2975#else
2545 return getuid () != geteuid () 2976 return getuid () != geteuid ()
2546 || getgid () != getegid (); 2977 || getgid () != getegid ();
2547#endif 2978#endif
2548} 2979}
2549 2980
2550unsigned int ecb_cold 2981ecb_cold
2982unsigned int
2551ev_supported_backends (void) EV_THROW 2983ev_supported_backends (void) EV_NOEXCEPT
2552{ 2984{
2553 unsigned int flags = 0; 2985 unsigned int flags = 0;
2554 2986
2555 if (EV_USE_PORT ) flags |= EVBACKEND_PORT; 2987 if (EV_USE_PORT ) flags |= EVBACKEND_PORT;
2556 if (EV_USE_KQUEUE) flags |= EVBACKEND_KQUEUE; 2988 if (EV_USE_KQUEUE ) flags |= EVBACKEND_KQUEUE;
2557 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL; 2989 if (EV_USE_EPOLL ) flags |= EVBACKEND_EPOLL;
2990 if (EV_USE_LINUXAIO) flags |= EVBACKEND_LINUXAIO;
2991 if (EV_USE_IOURING ) flags |= EVBACKEND_IOURING;
2558 if (EV_USE_POLL ) flags |= EVBACKEND_POLL; 2992 if (EV_USE_POLL ) flags |= EVBACKEND_POLL;
2559 if (EV_USE_SELECT) flags |= EVBACKEND_SELECT; 2993 if (EV_USE_SELECT ) flags |= EVBACKEND_SELECT;
2560 2994
2561 return flags; 2995 return flags;
2562} 2996}
2563 2997
2564unsigned int ecb_cold 2998ecb_cold
2999unsigned int
2565ev_recommended_backends (void) EV_THROW 3000ev_recommended_backends (void) EV_NOEXCEPT
2566{ 3001{
2567 unsigned int flags = ev_supported_backends (); 3002 unsigned int flags = ev_supported_backends ();
2568 3003
2569#ifndef __NetBSD__ 3004#ifndef __NetBSD__
2570 /* kqueue is borked on everything but netbsd apparently */ 3005 /* kqueue is borked on everything but netbsd apparently */
… …
2578#endif 3013#endif
2579#ifdef __FreeBSD__ 3014#ifdef __FreeBSD__
2580 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */ 3015 flags &= ~EVBACKEND_POLL; /* poll return value is unusable (http://forums.freebsd.org/archive/index.php/t-10270.html) */
2581#endif 3016#endif
2582 3017
3018 /* TODO: linuxaio is very experimental */
3019#if !EV_RECOMMEND_LINUXAIO
3020 flags &= ~EVBACKEND_LINUXAIO;
3021#endif
3022 /* TODO: linuxaio is super experimental */
3023#if !EV_RECOMMEND_IOURING
3024 flags &= ~EVBACKEND_IOURING;
3025#endif
3026
2583 return flags; 3027 return flags;
2584} 3028}
2585 3029
2586unsigned int ecb_cold 3030ecb_cold
3031unsigned int
2587ev_embeddable_backends (void) EV_THROW 3032ev_embeddable_backends (void) EV_NOEXCEPT
2588{ 3033{
2589 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT; 3034 int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
2590 3035
2591 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */ 3036 /* epoll embeddability broken on all linux versions up to at least 2.6.23 */
2592 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */ 3037 if (ev_linux_version () < 0x020620) /* disable it on linux < 2.6.32 */
2593 flags &= ~EVBACKEND_EPOLL; 3038 flags &= ~EVBACKEND_EPOLL;
2594 3039
3040 /* EVBACKEND_LINUXAIO is theoretically embeddable, but suffers from a performance overhead */
3041
3042 /* EVBACKEND_IOURING is practically embeddable, but the current implementation is not
3043 * because our backend_fd is the epoll fd we need as fallback.
3044 * if the kernel ever is fixed, this might change...
3045 */
3046
2595 return flags; 3047 return flags;
2596} 3048}
2597 3049
2598unsigned int 3050unsigned int
2599ev_backend (EV_P) EV_THROW 3051ev_backend (EV_P) EV_NOEXCEPT
2600{ 3052{
2601 return backend; 3053 return backend;
2602} 3054}
2603 3055
2604#if EV_FEATURE_API 3056#if EV_FEATURE_API
2605unsigned int 3057unsigned int
2606ev_iteration (EV_P) EV_THROW 3058ev_iteration (EV_P) EV_NOEXCEPT
2607{ 3059{
2608 return loop_count; 3060 return loop_count;
2609} 3061}
2610 3062
2611unsigned int 3063unsigned int
2612ev_depth (EV_P) EV_THROW 3064ev_depth (EV_P) EV_NOEXCEPT
2613{ 3065{
2614 return loop_depth; 3066 return loop_depth;
2615} 3067}
2616 3068
2617void 3069void
2618ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3070ev_set_io_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2619{ 3071{
2620 io_blocktime = interval; 3072 io_blocktime = interval;
2621} 3073}
2622 3074
2623void 3075void
2624ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_THROW 3076ev_set_timeout_collect_interval (EV_P_ ev_tstamp interval) EV_NOEXCEPT
2625{ 3077{
2626 timeout_blocktime = interval; 3078 timeout_blocktime = interval;
2627} 3079}
2628 3080
2629void 3081void
2630ev_set_userdata (EV_P_ void *data) EV_THROW 3082ev_set_userdata (EV_P_ void *data) EV_NOEXCEPT
2631{ 3083{
2632 userdata = data; 3084 userdata = data;
2633} 3085}
2634 3086
2635void * 3087void *
2636ev_userdata (EV_P) EV_THROW 3088ev_userdata (EV_P) EV_NOEXCEPT
2637{ 3089{
2638 return userdata; 3090 return userdata;
2639} 3091}
2640 3092
2641void 3093void
2642ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_THROW 3094ev_set_invoke_pending_cb (EV_P_ ev_loop_callback invoke_pending_cb) EV_NOEXCEPT
2643{ 3095{
2644 invoke_cb = invoke_pending_cb; 3096 invoke_cb = invoke_pending_cb;
2645} 3097}
2646 3098
2647void 3099void
2648ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_THROW, void (*acquire)(EV_P) EV_THROW) EV_THROW 3100ev_set_loop_release_cb (EV_P_ void (*release)(EV_P) EV_NOEXCEPT, void (*acquire)(EV_P) EV_NOEXCEPT) EV_NOEXCEPT
2649{ 3101{
2650 release_cb = release; 3102 release_cb = release;
2651 acquire_cb = acquire; 3103 acquire_cb = acquire;
2652} 3104}
2653#endif 3105#endif
2654 3106
2655/* initialise a loop structure, must be zero-initialised */ 3107/* initialise a loop structure, must be zero-initialised */
2656static void noinline ecb_cold 3108ecb_noinline ecb_cold
3109static void
2657loop_init (EV_P_ unsigned int flags) EV_THROW 3110loop_init (EV_P_ unsigned int flags) EV_NOEXCEPT
2658{ 3111{
2659 if (!backend) 3112 if (!backend)
2660 { 3113 {
2661 origflags = flags; 3114 origflags = flags;
2662 3115
… …
2715 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2; 3168 fs_fd = flags & EVFLAG_NOINOTIFY ? -1 : -2;
2716#endif 3169#endif
2717#if EV_USE_SIGNALFD 3170#if EV_USE_SIGNALFD
2718 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1; 3171 sigfd = flags & EVFLAG_SIGNALFD ? -2 : -1;
2719#endif 3172#endif
3173#if EV_USE_TIMERFD
3174 timerfd = flags & EVFLAG_NOTIMERFD ? -1 : -2;
3175#endif
2720 3176
2721 if (!(flags & EVBACKEND_MASK)) 3177 if (!(flags & EVBACKEND_MASK))
2722 flags |= ev_recommended_backends (); 3178 flags |= ev_recommended_backends ();
2723 3179
2724#if EV_USE_IOCP 3180#if EV_USE_IOCP
2725 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags); 3181 if (!backend && (flags & EVBACKEND_IOCP )) backend = iocp_init (EV_A_ flags);
2726#endif 3182#endif
2727#if EV_USE_PORT 3183#if EV_USE_PORT
2728 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags); 3184 if (!backend && (flags & EVBACKEND_PORT )) backend = port_init (EV_A_ flags);
2729#endif 3185#endif
2730#if EV_USE_KQUEUE 3186#if EV_USE_KQUEUE
2731 if (!backend && (flags & EVBACKEND_KQUEUE)) backend = kqueue_init (EV_A_ flags); 3187 if (!backend && (flags & EVBACKEND_KQUEUE )) backend = kqueue_init (EV_A_ flags);
3188#endif
3189#if EV_USE_IOURING
3190 if (!backend && (flags & EVBACKEND_IOURING )) backend = iouring_init (EV_A_ flags);
3191#endif
3192#if EV_USE_LINUXAIO
3193 if (!backend && (flags & EVBACKEND_LINUXAIO)) backend = linuxaio_init (EV_A_ flags);
2732#endif 3194#endif
2733#if EV_USE_EPOLL 3195#if EV_USE_EPOLL
2734 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags); 3196 if (!backend && (flags & EVBACKEND_EPOLL )) backend = epoll_init (EV_A_ flags);
2735#endif 3197#endif
2736#if EV_USE_POLL 3198#if EV_USE_POLL
2737 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags); 3199 if (!backend && (flags & EVBACKEND_POLL )) backend = poll_init (EV_A_ flags);
2738#endif 3200#endif
2739#if EV_USE_SELECT 3201#if EV_USE_SELECT
2740 if (!backend && (flags & EVBACKEND_SELECT)) backend = select_init (EV_A_ flags); 3202 if (!backend && (flags & EVBACKEND_SELECT )) backend = select_init (EV_A_ flags);
2741#endif 3203#endif
2742 3204
2743 ev_prepare_init (&pending_w, pendingcb); 3205 ev_prepare_init (&pending_w, pendingcb);
2744 3206
2745#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3207#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
… …
2748#endif 3210#endif
2749 } 3211 }
2750} 3212}
2751 3213
2752/* free up a loop structure */ 3214/* free up a loop structure */
2753void ecb_cold 3215ecb_cold
3216void
2754ev_loop_destroy (EV_P) 3217ev_loop_destroy (EV_P)
2755{ 3218{
2756 int i; 3219 int i;
2757 3220
2758#if EV_MULTIPLICITY 3221#if EV_MULTIPLICITY
… …
2761 return; 3224 return;
2762#endif 3225#endif
2763 3226
2764#if EV_CLEANUP_ENABLE 3227#if EV_CLEANUP_ENABLE
2765 /* queue cleanup watchers (and execute them) */ 3228 /* queue cleanup watchers (and execute them) */
2766 if (expect_false (cleanupcnt)) 3229 if (ecb_expect_false (cleanupcnt))
2767 { 3230 {
2768 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP); 3231 queue_events (EV_A_ (W *)cleanups, cleanupcnt, EV_CLEANUP);
2769 EV_INVOKE_PENDING; 3232 EV_INVOKE_PENDING;
2770 } 3233 }
2771#endif 3234#endif
… …
2790#if EV_USE_SIGNALFD 3253#if EV_USE_SIGNALFD
2791 if (ev_is_active (&sigfd_w)) 3254 if (ev_is_active (&sigfd_w))
2792 close (sigfd); 3255 close (sigfd);
2793#endif 3256#endif
2794 3257
3258#if EV_USE_TIMERFD
3259 if (ev_is_active (&timerfd_w))
3260 close (timerfd);
3261#endif
3262
2795#if EV_USE_INOTIFY 3263#if EV_USE_INOTIFY
2796 if (fs_fd >= 0) 3264 if (fs_fd >= 0)
2797 close (fs_fd); 3265 close (fs_fd);
2798#endif 3266#endif
2799 3267
2800 if (backend_fd >= 0) 3268 if (backend_fd >= 0)
2801 close (backend_fd); 3269 close (backend_fd);
2802 3270
2803#if EV_USE_IOCP 3271#if EV_USE_IOCP
2804 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A); 3272 if (backend == EVBACKEND_IOCP ) iocp_destroy (EV_A);
2805#endif 3273#endif
2806#if EV_USE_PORT 3274#if EV_USE_PORT
2807 if (backend == EVBACKEND_PORT ) port_destroy (EV_A); 3275 if (backend == EVBACKEND_PORT ) port_destroy (EV_A);
2808#endif 3276#endif
2809#if EV_USE_KQUEUE 3277#if EV_USE_KQUEUE
2810 if (backend == EVBACKEND_KQUEUE) kqueue_destroy (EV_A); 3278 if (backend == EVBACKEND_KQUEUE ) kqueue_destroy (EV_A);
3279#endif
3280#if EV_USE_IOURING
3281 if (backend == EVBACKEND_IOURING ) iouring_destroy (EV_A);
3282#endif
3283#if EV_USE_LINUXAIO
3284 if (backend == EVBACKEND_LINUXAIO) linuxaio_destroy (EV_A);
2811#endif 3285#endif
2812#if EV_USE_EPOLL 3286#if EV_USE_EPOLL
2813 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A); 3287 if (backend == EVBACKEND_EPOLL ) epoll_destroy (EV_A);
2814#endif 3288#endif
2815#if EV_USE_POLL 3289#if EV_USE_POLL
2816 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A); 3290 if (backend == EVBACKEND_POLL ) poll_destroy (EV_A);
2817#endif 3291#endif
2818#if EV_USE_SELECT 3292#if EV_USE_SELECT
2819 if (backend == EVBACKEND_SELECT) select_destroy (EV_A); 3293 if (backend == EVBACKEND_SELECT ) select_destroy (EV_A);
2820#endif 3294#endif
2821 3295
2822 for (i = NUMPRI; i--; ) 3296 for (i = NUMPRI; i--; )
2823 { 3297 {
2824 array_free (pending, [i]); 3298 array_free (pending, [i]);
… …
2866 3340
2867inline_size void 3341inline_size void
2868loop_fork (EV_P) 3342loop_fork (EV_P)
2869{ 3343{
2870#if EV_USE_PORT 3344#if EV_USE_PORT
2871 if (backend == EVBACKEND_PORT ) port_fork (EV_A); 3345 if (backend == EVBACKEND_PORT ) port_fork (EV_A);
2872#endif 3346#endif
2873#if EV_USE_KQUEUE 3347#if EV_USE_KQUEUE
2874 if (backend == EVBACKEND_KQUEUE) kqueue_fork (EV_A); 3348 if (backend == EVBACKEND_KQUEUE ) kqueue_fork (EV_A);
3349#endif
3350#if EV_USE_IOURING
3351 if (backend == EVBACKEND_IOURING ) iouring_fork (EV_A);
3352#endif
3353#if EV_USE_LINUXAIO
3354 if (backend == EVBACKEND_LINUXAIO) linuxaio_fork (EV_A);
2875#endif 3355#endif
2876#if EV_USE_EPOLL 3356#if EV_USE_EPOLL
2877 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A); 3357 if (backend == EVBACKEND_EPOLL ) epoll_fork (EV_A);
2878#endif 3358#endif
2879#if EV_USE_INOTIFY 3359#if EV_USE_INOTIFY
2880 infy_fork (EV_A); 3360 infy_fork (EV_A);
2881#endif 3361#endif
2882 3362
3363 if (postfork != 2)
3364 {
3365 #if EV_USE_SIGNALFD
3366 /* surprisingly, nothing needs to be done for signalfd, accoridng to docs, it does the right thing on fork */
3367 #endif
3368
3369 #if EV_USE_TIMERFD
3370 if (ev_is_active (&timerfd_w))
3371 {
3372 ev_ref (EV_A);
3373 ev_io_stop (EV_A_ &timerfd_w);
3374
3375 close (timerfd);
3376 timerfd = -2;
3377
3378 evtimerfd_init (EV_A);
3379 /* reschedule periodics, in case we missed something */
3380 ev_feed_event (EV_A_ &timerfd_w, EV_CUSTOM);
3381 }
3382 #endif
3383
2883#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE 3384 #if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
2884 if (ev_is_active (&pipe_w)) 3385 if (ev_is_active (&pipe_w))
2885 { 3386 {
2886 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */ 3387 /* pipe_write_wanted must be false now, so modifying fd vars should be safe */
2887 3388
2888 ev_ref (EV_A); 3389 ev_ref (EV_A);
2889 ev_io_stop (EV_A_ &pipe_w); 3390 ev_io_stop (EV_A_ &pipe_w);
2890 3391
2891 if (evpipe [0] >= 0) 3392 if (evpipe [0] >= 0)
2892 EV_WIN32_CLOSE_FD (evpipe [0]); 3393 EV_WIN32_CLOSE_FD (evpipe [0]);
2893 3394
2894 evpipe_init (EV_A); 3395 evpipe_init (EV_A);
2895 /* iterate over everything, in case we missed something before */ 3396 /* iterate over everything, in case we missed something before */
2896 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 3397 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3398 }
3399 #endif
2897 } 3400 }
2898#endif
2899 3401
2900 postfork = 0; 3402 postfork = 0;
2901} 3403}
2902 3404
2903#if EV_MULTIPLICITY 3405#if EV_MULTIPLICITY
2904 3406
3407ecb_cold
2905struct ev_loop * ecb_cold 3408struct ev_loop *
2906ev_loop_new (unsigned int flags) EV_THROW 3409ev_loop_new (unsigned int flags) EV_NOEXCEPT
2907{ 3410{
2908 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop)); 3411 EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
2909 3412
2910 memset (EV_A, 0, sizeof (struct ev_loop)); 3413 memset (EV_A, 0, sizeof (struct ev_loop));
2911 loop_init (EV_A_ flags); 3414 loop_init (EV_A_ flags);
… …
2918} 3421}
2919 3422
2920#endif /* multiplicity */ 3423#endif /* multiplicity */
2921 3424
2922#if EV_VERIFY 3425#if EV_VERIFY
2923static void noinline ecb_cold 3426ecb_noinline ecb_cold
3427static void
2924verify_watcher (EV_P_ W w) 3428verify_watcher (EV_P_ W w)
2925{ 3429{
2926 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI)); 3430 assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
2927 3431
2928 if (w->pending) 3432 if (w->pending)
2929 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w)); 3433 assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
2930} 3434}
2931 3435
2932static void noinline ecb_cold 3436ecb_noinline ecb_cold
3437static void
2933verify_heap (EV_P_ ANHE *heap, int N) 3438verify_heap (EV_P_ ANHE *heap, int N)
2934{ 3439{
2935 int i; 3440 int i;
2936 3441
2937 for (i = HEAP0; i < N + HEAP0; ++i) 3442 for (i = HEAP0; i < N + HEAP0; ++i)
… …
2942 3447
2943 verify_watcher (EV_A_ (W)ANHE_w (heap [i])); 3448 verify_watcher (EV_A_ (W)ANHE_w (heap [i]));
2944 } 3449 }
2945} 3450}
2946 3451
2947static void noinline ecb_cold 3452ecb_noinline ecb_cold
3453static void
2948array_verify (EV_P_ W *ws, int cnt) 3454array_verify (EV_P_ W *ws, int cnt)
2949{ 3455{
2950 while (cnt--) 3456 while (cnt--)
2951 { 3457 {
2952 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1)); 3458 assert (("libev: active index mismatch", ev_active (ws [cnt]) == cnt + 1));
… …
2955} 3461}
2956#endif 3462#endif
2957 3463
2958#if EV_FEATURE_API 3464#if EV_FEATURE_API
2959void ecb_cold 3465void ecb_cold
2960ev_verify (EV_P) EV_THROW 3466ev_verify (EV_P) EV_NOEXCEPT
2961{ 3467{
2962#if EV_VERIFY 3468#if EV_VERIFY
2963 int i; 3469 int i;
2964 WL w, w2; 3470 WL w, w2;
2965 3471
… …
3041#endif 3547#endif
3042} 3548}
3043#endif 3549#endif
3044 3550
3045#if EV_MULTIPLICITY 3551#if EV_MULTIPLICITY
3552ecb_cold
3046struct ev_loop * ecb_cold 3553struct ev_loop *
3047#else 3554#else
3048int 3555int
3049#endif 3556#endif
3050ev_default_loop (unsigned int flags) EV_THROW 3557ev_default_loop (unsigned int flags) EV_NOEXCEPT
3051{ 3558{
3052 if (!ev_default_loop_ptr) 3559 if (!ev_default_loop_ptr)
3053 { 3560 {
3054#if EV_MULTIPLICITY 3561#if EV_MULTIPLICITY
3055 EV_P = ev_default_loop_ptr = &default_loop_struct; 3562 EV_P = ev_default_loop_ptr = &default_loop_struct;
… …
3074 3581
3075 return ev_default_loop_ptr; 3582 return ev_default_loop_ptr;
3076} 3583}
3077 3584
3078void 3585void
3079ev_loop_fork (EV_P) EV_THROW 3586ev_loop_fork (EV_P) EV_NOEXCEPT
3080{ 3587{
3081 postfork = 1; 3588 postfork = 1;
3082} 3589}
3083 3590
3084/*****************************************************************************/ 3591/*****************************************************************************/
… …
3088{ 3595{
3089 EV_CB_INVOKE ((W)w, revents); 3596 EV_CB_INVOKE ((W)w, revents);
3090} 3597}
3091 3598
3092unsigned int 3599unsigned int
3093ev_pending_count (EV_P) EV_THROW 3600ev_pending_count (EV_P) EV_NOEXCEPT
3094{ 3601{
3095 int pri; 3602 int pri;
3096 unsigned int count = 0; 3603 unsigned int count = 0;
3097 3604
3098 for (pri = NUMPRI; pri--; ) 3605 for (pri = NUMPRI; pri--; )
3099 count += pendingcnt [pri]; 3606 count += pendingcnt [pri];
3100 3607
3101 return count; 3608 return count;
3102} 3609}
3103 3610
3104void noinline 3611ecb_noinline
3612void
3105ev_invoke_pending (EV_P) 3613ev_invoke_pending (EV_P)
3106{ 3614{
3107 pendingpri = NUMPRI; 3615 pendingpri = NUMPRI;
3108 3616
3109 while (pendingpri) /* pendingpri possibly gets modified in the inner loop */ 3617 do
3110 { 3618 {
3111 --pendingpri; 3619 --pendingpri;
3112 3620
3621 /* pendingpri possibly gets modified in the inner loop */
3113 while (pendingcnt [pendingpri]) 3622 while (pendingcnt [pendingpri])
3114 { 3623 {
3115 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri]; 3624 ANPENDING *p = pendings [pendingpri] + --pendingcnt [pendingpri];
3116 3625
3117 p->w->pending = 0; 3626 p->w->pending = 0;
3118 EV_CB_INVOKE (p->w, p->events); 3627 EV_CB_INVOKE (p->w, p->events);
3119 EV_FREQUENT_CHECK; 3628 EV_FREQUENT_CHECK;
3120 } 3629 }
3121 } 3630 }
3631 while (pendingpri);
3122} 3632}
3123 3633
3124#if EV_IDLE_ENABLE 3634#if EV_IDLE_ENABLE
3125/* make idle watchers pending. this handles the "call-idle */ 3635/* make idle watchers pending. this handles the "call-idle */
3126/* only when higher priorities are idle" logic */ 3636/* only when higher priorities are idle" logic */
3127inline_size void 3637inline_size void
3128idle_reify (EV_P) 3638idle_reify (EV_P)
3129{ 3639{
3130 if (expect_false (idleall)) 3640 if (ecb_expect_false (idleall))
3131 { 3641 {
3132 int pri; 3642 int pri;
3133 3643
3134 for (pri = NUMPRI; pri--; ) 3644 for (pri = NUMPRI; pri--; )
3135 { 3645 {
… …
3165 { 3675 {
3166 ev_at (w) += w->repeat; 3676 ev_at (w) += w->repeat;
3167 if (ev_at (w) < mn_now) 3677 if (ev_at (w) < mn_now)
3168 ev_at (w) = mn_now; 3678 ev_at (w) = mn_now;
3169 3679
3170 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > 0.)); 3680 assert (("libev: negative ev_timer repeat value found while processing timers", w->repeat > EV_TS_CONST (0.)));
3171 3681
3172 ANHE_at_cache (timers [HEAP0]); 3682 ANHE_at_cache (timers [HEAP0]);
3173 downheap (timers, timercnt, HEAP0); 3683 downheap (timers, timercnt, HEAP0);
3174 } 3684 }
3175 else 3685 else
… …
3184 } 3694 }
3185} 3695}
3186 3696
3187#if EV_PERIODIC_ENABLE 3697#if EV_PERIODIC_ENABLE
3188 3698
3189static void noinline 3699ecb_noinline
3700static void
3190periodic_recalc (EV_P_ ev_periodic *w) 3701periodic_recalc (EV_P_ ev_periodic *w)
3191{ 3702{
3192 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL; 3703 ev_tstamp interval = w->interval > MIN_INTERVAL ? w->interval : MIN_INTERVAL;
3193 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval); 3704 ev_tstamp at = w->offset + interval * ev_floor ((ev_rt_now - w->offset) / interval);
3194 3705
… …
3196 while (at <= ev_rt_now) 3707 while (at <= ev_rt_now)
3197 { 3708 {
3198 ev_tstamp nat = at + w->interval; 3709 ev_tstamp nat = at + w->interval;
3199 3710
3200 /* when resolution fails us, we use ev_rt_now */ 3711 /* when resolution fails us, we use ev_rt_now */
3201 if (expect_false (nat == at)) 3712 if (ecb_expect_false (nat == at))
3202 { 3713 {
3203 at = ev_rt_now; 3714 at = ev_rt_now;
3204 break; 3715 break;
3205 } 3716 }
3206 3717
… …
3252 } 3763 }
3253} 3764}
3254 3765
3255/* simply recalculate all periodics */ 3766/* simply recalculate all periodics */
3256/* TODO: maybe ensure that at least one event happens when jumping forward? */ 3767/* TODO: maybe ensure that at least one event happens when jumping forward? */
3257static void noinline ecb_cold 3768ecb_noinline ecb_cold
3769static void
3258periodics_reschedule (EV_P) 3770periodics_reschedule (EV_P)
3259{ 3771{
3260 int i; 3772 int i;
3261 3773
3262 /* adjust periodics after time jump */ 3774 /* adjust periodics after time jump */
… …
3275 reheap (periodics, periodiccnt); 3787 reheap (periodics, periodiccnt);
3276} 3788}
3277#endif 3789#endif
3278 3790
3279/* adjust all timers by a given offset */ 3791/* adjust all timers by a given offset */
3280static void noinline ecb_cold 3792ecb_noinline ecb_cold
3793static void
3281timers_reschedule (EV_P_ ev_tstamp adjust) 3794timers_reschedule (EV_P_ ev_tstamp adjust)
3282{ 3795{
3283 int i; 3796 int i;
3284 3797
3285 for (i = 0; i < timercnt; ++i) 3798 for (i = 0; i < timercnt; ++i)
… …
3294/* also detect if there was a timejump, and act accordingly */ 3807/* also detect if there was a timejump, and act accordingly */
3295inline_speed void 3808inline_speed void
3296time_update (EV_P_ ev_tstamp max_block) 3809time_update (EV_P_ ev_tstamp max_block)
3297{ 3810{
3298#if EV_USE_MONOTONIC 3811#if EV_USE_MONOTONIC
3299 if (expect_true (have_monotonic)) 3812 if (ecb_expect_true (have_monotonic))
3300 { 3813 {
3301 int i; 3814 int i;
3302 ev_tstamp odiff = rtmn_diff; 3815 ev_tstamp odiff = rtmn_diff;
3303 3816
3304 mn_now = get_clock (); 3817 mn_now = get_clock ();
3305 3818
3306 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */ 3819 /* only fetch the realtime clock every 0.5*MIN_TIMEJUMP seconds */
3307 /* interpolate in the meantime */ 3820 /* interpolate in the meantime */
3308 if (expect_true (mn_now - now_floor < MIN_TIMEJUMP * .5)) 3821 if (ecb_expect_true (mn_now - now_floor < EV_TS_CONST (MIN_TIMEJUMP * .5)))
3309 { 3822 {
3310 ev_rt_now = rtmn_diff + mn_now; 3823 ev_rt_now = rtmn_diff + mn_now;
3311 return; 3824 return;
3312 } 3825 }
3313 3826
… …
3327 ev_tstamp diff; 3840 ev_tstamp diff;
3328 rtmn_diff = ev_rt_now - mn_now; 3841 rtmn_diff = ev_rt_now - mn_now;
3329 3842
3330 diff = odiff - rtmn_diff; 3843 diff = odiff - rtmn_diff;
3331 3844
3332 if (expect_true ((diff < 0. ? -diff : diff) < MIN_TIMEJUMP)) 3845 if (ecb_expect_true ((diff < EV_TS_CONST (0.) ? -diff : diff) < EV_TS_CONST (MIN_TIMEJUMP)))
3333 return; /* all is well */ 3846 return; /* all is well */
3334 3847
3335 ev_rt_now = ev_time (); 3848 ev_rt_now = ev_time ();
3336 mn_now = get_clock (); 3849 mn_now = get_clock ();
3337 now_floor = mn_now; 3850 now_floor = mn_now;
… …
3346 else 3859 else
3347#endif 3860#endif
3348 { 3861 {
3349 ev_rt_now = ev_time (); 3862 ev_rt_now = ev_time ();
3350 3863
3351 if (expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + MIN_TIMEJUMP)) 3864 if (ecb_expect_false (mn_now > ev_rt_now || ev_rt_now > mn_now + max_block + EV_TS_CONST (MIN_TIMEJUMP)))
3352 { 3865 {
3353 /* adjust timers. this is easy, as the offset is the same for all of them */ 3866 /* adjust timers. this is easy, as the offset is the same for all of them */
3354 timers_reschedule (EV_A_ ev_rt_now - mn_now); 3867 timers_reschedule (EV_A_ ev_rt_now - mn_now);
3355#if EV_PERIODIC_ENABLE 3868#if EV_PERIODIC_ENABLE
3356 periodics_reschedule (EV_A); 3869 periodics_reschedule (EV_A);
… …
3379#if EV_VERIFY >= 2 3892#if EV_VERIFY >= 2
3380 ev_verify (EV_A); 3893 ev_verify (EV_A);
3381#endif 3894#endif
3382 3895
3383#ifndef _WIN32 3896#ifndef _WIN32
3384 if (expect_false (curpid)) /* penalise the forking check even more */ 3897 if (ecb_expect_false (curpid)) /* penalise the forking check even more */
3385 if (expect_false (getpid () != curpid)) 3898 if (ecb_expect_false (getpid () != curpid))
3386 { 3899 {
3387 curpid = getpid (); 3900 curpid = getpid ();
3388 postfork = 1; 3901 postfork = 1;
3389 } 3902 }
3390#endif 3903#endif
3391 3904
3392#if EV_FORK_ENABLE 3905#if EV_FORK_ENABLE
3393 /* we might have forked, so queue fork handlers */ 3906 /* we might have forked, so queue fork handlers */
3394 if (expect_false (postfork)) 3907 if (ecb_expect_false (postfork))
3395 if (forkcnt) 3908 if (forkcnt)
3396 { 3909 {
3397 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK); 3910 queue_events (EV_A_ (W *)forks, forkcnt, EV_FORK);
3398 EV_INVOKE_PENDING; 3911 EV_INVOKE_PENDING;
3399 } 3912 }
3400#endif 3913#endif
3401 3914
3402#if EV_PREPARE_ENABLE 3915#if EV_PREPARE_ENABLE
3403 /* queue prepare watchers (and execute them) */ 3916 /* queue prepare watchers (and execute them) */
3404 if (expect_false (preparecnt)) 3917 if (ecb_expect_false (preparecnt))
3405 { 3918 {
3406 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE); 3919 queue_events (EV_A_ (W *)prepares, preparecnt, EV_PREPARE);
3407 EV_INVOKE_PENDING; 3920 EV_INVOKE_PENDING;
3408 } 3921 }
3409#endif 3922#endif
3410 3923
3411 if (expect_false (loop_done)) 3924 if (ecb_expect_false (loop_done))
3412 break; 3925 break;
3413 3926
3414 /* we might have forked, so reify kernel state if necessary */ 3927 /* we might have forked, so reify kernel state if necessary */
3415 if (expect_false (postfork)) 3928 if (ecb_expect_false (postfork))
3416 loop_fork (EV_A); 3929 loop_fork (EV_A);
3417 3930
3418 /* update fd-related kernel structures */ 3931 /* update fd-related kernel structures */
3419 fd_reify (EV_A); 3932 fd_reify (EV_A);
3420 3933
… …
3425 3938
3426 /* remember old timestamp for io_blocktime calculation */ 3939 /* remember old timestamp for io_blocktime calculation */
3427 ev_tstamp prev_mn_now = mn_now; 3940 ev_tstamp prev_mn_now = mn_now;
3428 3941
3429 /* update time to cancel out callback processing overhead */ 3942 /* update time to cancel out callback processing overhead */
3430 time_update (EV_A_ 1e100); 3943 time_update (EV_A_ EV_TS_CONST (EV_TSTAMP_HUGE));
3431 3944
3432 /* from now on, we want a pipe-wake-up */ 3945 /* from now on, we want a pipe-wake-up */
3433 pipe_write_wanted = 1; 3946 pipe_write_wanted = 1;
3434 3947
3435 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */ 3948 ECB_MEMORY_FENCE; /* make sure pipe_write_wanted is visible before we check for potential skips */
3436 3949
3437 if (expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped))) 3950 if (ecb_expect_true (!(flags & EVRUN_NOWAIT || idleall || !activecnt || pipe_write_skipped)))
3438 { 3951 {
3439 waittime = MAX_BLOCKTIME; 3952 waittime = EV_TS_CONST (MAX_BLOCKTIME);
3440 3953
3441 if (timercnt) 3954 if (timercnt)
3442 { 3955 {
3443 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now; 3956 ev_tstamp to = ANHE_at (timers [HEAP0]) - mn_now;
3444 if (waittime > to) waittime = to; 3957 if (waittime > to) waittime = to;
… …
3451 if (waittime > to) waittime = to; 3964 if (waittime > to) waittime = to;
3452 } 3965 }
3453#endif 3966#endif
3454 3967
3455 /* don't let timeouts decrease the waittime below timeout_blocktime */ 3968 /* don't let timeouts decrease the waittime below timeout_blocktime */
3456 if (expect_false (waittime < timeout_blocktime)) 3969 if (ecb_expect_false (waittime < timeout_blocktime))
3457 waittime = timeout_blocktime; 3970 waittime = timeout_blocktime;
3458 3971
3459 /* at this point, we NEED to wait, so we have to ensure */ 3972 /* now there are two more special cases left, either we have
3460 /* to pass a minimum nonzero value to the backend */ 3973 * already-expired timers, so we should not sleep, or we have timers
3974 * that expire very soon, in which case we need to wait for a minimum
3975 * amount of time for some event loop backends.
3976 */
3461 if (expect_false (waittime < backend_mintime)) 3977 if (ecb_expect_false (waittime < backend_mintime))
3978 waittime = waittime <= EV_TS_CONST (0.)
3979 ? EV_TS_CONST (0.)
3462 waittime = backend_mintime; 3980 : backend_mintime;
3463 3981
3464 /* extra check because io_blocktime is commonly 0 */ 3982 /* extra check because io_blocktime is commonly 0 */
3465 if (expect_false (io_blocktime)) 3983 if (ecb_expect_false (io_blocktime))
3466 { 3984 {
3467 sleeptime = io_blocktime - (mn_now - prev_mn_now); 3985 sleeptime = io_blocktime - (mn_now - prev_mn_now);
3468 3986
3469 if (sleeptime > waittime - backend_mintime) 3987 if (sleeptime > waittime - backend_mintime)
3470 sleeptime = waittime - backend_mintime; 3988 sleeptime = waittime - backend_mintime;
3471 3989
3472 if (expect_true (sleeptime > 0.)) 3990 if (ecb_expect_true (sleeptime > EV_TS_CONST (0.)))
3473 { 3991 {
3474 ev_sleep (sleeptime); 3992 ev_sleep (sleeptime);
3475 waittime -= sleeptime; 3993 waittime -= sleeptime;
3476 } 3994 }
3477 } 3995 }
… …
3491 { 4009 {
3492 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w))); 4010 assert (("libev: pipe_w not active, but pipe not written", ev_is_active (&pipe_w)));
3493 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM); 4011 ev_feed_event (EV_A_ &pipe_w, EV_CUSTOM);
3494 } 4012 }
3495 4013
3496
3497 /* update ev_rt_now, do magic */ 4014 /* update ev_rt_now, do magic */
3498 time_update (EV_A_ waittime + sleeptime); 4015 time_update (EV_A_ waittime + sleeptime);
3499 } 4016 }
3500 4017
3501 /* queue pending timers and reschedule them */ 4018 /* queue pending timers and reschedule them */
… …
3509 idle_reify (EV_A); 4026 idle_reify (EV_A);
3510#endif 4027#endif
3511 4028
3512#if EV_CHECK_ENABLE 4029#if EV_CHECK_ENABLE
3513 /* queue check watchers, to be executed first */ 4030 /* queue check watchers, to be executed first */
3514 if (expect_false (checkcnt)) 4031 if (ecb_expect_false (checkcnt))
3515 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK); 4032 queue_events (EV_A_ (W *)checks, checkcnt, EV_CHECK);
3516#endif 4033#endif
3517 4034
3518 EV_INVOKE_PENDING; 4035 EV_INVOKE_PENDING;
3519 } 4036 }
3520 while (expect_true ( 4037 while (ecb_expect_true (
3521 activecnt 4038 activecnt
3522 && !loop_done 4039 && !loop_done
3523 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT)) 4040 && !(flags & (EVRUN_ONCE | EVRUN_NOWAIT))
3524 )); 4041 ));
3525 4042
… …
3532 4049
3533 return activecnt; 4050 return activecnt;
3534} 4051}
3535 4052
3536void 4053void
3537ev_break (EV_P_ int how) EV_THROW 4054ev_break (EV_P_ int how) EV_NOEXCEPT
3538{ 4055{
3539 loop_done = how; 4056 loop_done = how;
3540} 4057}
3541 4058
3542void 4059void
3543ev_ref (EV_P) EV_THROW 4060ev_ref (EV_P) EV_NOEXCEPT
3544{ 4061{
3545 ++activecnt; 4062 ++activecnt;
3546} 4063}
3547 4064
3548void 4065void
3549ev_unref (EV_P) EV_THROW 4066ev_unref (EV_P) EV_NOEXCEPT
3550{ 4067{
3551 --activecnt; 4068 --activecnt;
3552} 4069}
3553 4070
3554void 4071void
3555ev_now_update (EV_P) EV_THROW 4072ev_now_update (EV_P) EV_NOEXCEPT
3556{ 4073{
3557 time_update (EV_A_ 1e100); 4074 time_update (EV_A_ EV_TSTAMP_HUGE);
3558} 4075}
3559 4076
3560void 4077void
3561ev_suspend (EV_P) EV_THROW 4078ev_suspend (EV_P) EV_NOEXCEPT
3562{ 4079{
3563 ev_now_update (EV_A); 4080 ev_now_update (EV_A);
3564} 4081}
3565 4082
3566void 4083void
3567ev_resume (EV_P) EV_THROW 4084ev_resume (EV_P) EV_NOEXCEPT
3568{ 4085{
3569 ev_tstamp mn_prev = mn_now; 4086 ev_tstamp mn_prev = mn_now;
3570 4087
3571 ev_now_update (EV_A); 4088 ev_now_update (EV_A);
3572 timers_reschedule (EV_A_ mn_now - mn_prev); 4089 timers_reschedule (EV_A_ mn_now - mn_prev);
… …
3589inline_size void 4106inline_size void
3590wlist_del (WL *head, WL elem) 4107wlist_del (WL *head, WL elem)
3591{ 4108{
3592 while (*head) 4109 while (*head)
3593 { 4110 {
3594 if (expect_true (*head == elem)) 4111 if (ecb_expect_true (*head == elem))
3595 { 4112 {
3596 *head = elem->next; 4113 *head = elem->next;
3597 break; 4114 break;
3598 } 4115 }
3599 4116
… …
3611 w->pending = 0; 4128 w->pending = 0;
3612 } 4129 }
3613} 4130}
3614 4131
3615int 4132int
3616ev_clear_pending (EV_P_ void *w) EV_THROW 4133ev_clear_pending (EV_P_ void *w) EV_NOEXCEPT
3617{ 4134{
3618 W w_ = (W)w; 4135 W w_ = (W)w;
3619 int pending = w_->pending; 4136 int pending = w_->pending;
3620 4137
3621 if (expect_true (pending)) 4138 if (ecb_expect_true (pending))
3622 { 4139 {
3623 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1; 4140 ANPENDING *p = pendings [ABSPRI (w_)] + pending - 1;
3624 p->w = (W)&pending_w; 4141 p->w = (W)&pending_w;
3625 w_->pending = 0; 4142 w_->pending = 0;
3626 return p->events; 4143 return p->events;
… …
3653 w->active = 0; 4170 w->active = 0;
3654} 4171}
3655 4172
3656/*****************************************************************************/ 4173/*****************************************************************************/
3657 4174
3658void noinline 4175ecb_noinline
4176void
3659ev_io_start (EV_P_ ev_io *w) EV_THROW 4177ev_io_start (EV_P_ ev_io *w) EV_NOEXCEPT
3660{ 4178{
3661 int fd = w->fd; 4179 int fd = w->fd;
3662 4180
3663 if (expect_false (ev_is_active (w))) 4181 if (ecb_expect_false (ev_is_active (w)))
3664 return; 4182 return;
3665 4183
3666 assert (("libev: ev_io_start called with negative fd", fd >= 0)); 4184 assert (("libev: ev_io_start called with negative fd", fd >= 0));
3667 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE)))); 4185 assert (("libev: ev_io_start called with illegal event mask", !(w->events & ~(EV__IOFDSET | EV_READ | EV_WRITE))));
3668 4186
4187#if EV_VERIFY >= 2
4188 assert (("libev: ev_io_start called on watcher with invalid fd", fd_valid (fd)));
4189#endif
3669 EV_FREQUENT_CHECK; 4190 EV_FREQUENT_CHECK;
3670 4191
3671 ev_start (EV_A_ (W)w, 1); 4192 ev_start (EV_A_ (W)w, 1);
3672 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_init_zero); 4193 array_needsize (ANFD, anfds, anfdmax, fd + 1, array_needsize_zerofill);
3673 wlist_add (&anfds[fd].head, (WL)w); 4194 wlist_add (&anfds[fd].head, (WL)w);
3674 4195
3675 /* common bug, apparently */ 4196 /* common bug, apparently */
3676 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w)); 4197 assert (("libev: ev_io_start called with corrupted watcher", ((WL)w)->next != (WL)w));
3677 4198
… …
3679 w->events &= ~EV__IOFDSET; 4200 w->events &= ~EV__IOFDSET;
3680 4201
3681 EV_FREQUENT_CHECK; 4202 EV_FREQUENT_CHECK;
3682} 4203}
3683 4204
3684void noinline 4205ecb_noinline
4206void
3685ev_io_stop (EV_P_ ev_io *w) EV_THROW 4207ev_io_stop (EV_P_ ev_io *w) EV_NOEXCEPT
3686{ 4208{
3687 clear_pending (EV_A_ (W)w); 4209 clear_pending (EV_A_ (W)w);
3688 if (expect_false (!ev_is_active (w))) 4210 if (ecb_expect_false (!ev_is_active (w)))
3689 return; 4211 return;
3690 4212
3691 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax)); 4213 assert (("libev: ev_io_stop called with illegal fd (must stay constant after start!)", w->fd >= 0 && w->fd < anfdmax));
3692 4214
4215#if EV_VERIFY >= 2
4216 assert (("libev: ev_io_stop called on watcher with invalid fd", fd_valid (w->fd)));
4217#endif
3693 EV_FREQUENT_CHECK; 4218 EV_FREQUENT_CHECK;
3694 4219
3695 wlist_del (&anfds[w->fd].head, (WL)w); 4220 wlist_del (&anfds[w->fd].head, (WL)w);
3696 ev_stop (EV_A_ (W)w); 4221 ev_stop (EV_A_ (W)w);
3697 4222
3698 fd_change (EV_A_ w->fd, EV_ANFD_REIFY); 4223 fd_change (EV_A_ w->fd, EV_ANFD_REIFY);
3699 4224
3700 EV_FREQUENT_CHECK; 4225 EV_FREQUENT_CHECK;
3701} 4226}
3702 4227
3703void noinline 4228ecb_noinline
4229void
3704ev_timer_start (EV_P_ ev_timer *w) EV_THROW 4230ev_timer_start (EV_P_ ev_timer *w) EV_NOEXCEPT
3705{ 4231{
3706 if (expect_false (ev_is_active (w))) 4232 if (ecb_expect_false (ev_is_active (w)))
3707 return; 4233 return;
3708 4234
3709 ev_at (w) += mn_now; 4235 ev_at (w) += mn_now;
3710 4236
3711 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.)); 4237 assert (("libev: ev_timer_start called with negative timer repeat value", w->repeat >= 0.));
3712 4238
3713 EV_FREQUENT_CHECK; 4239 EV_FREQUENT_CHECK;
3714 4240
3715 ++timercnt; 4241 ++timercnt;
3716 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1); 4242 ev_start (EV_A_ (W)w, timercnt + HEAP0 - 1);
3717 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, EMPTY2); 4243 array_needsize (ANHE, timers, timermax, ev_active (w) + 1, array_needsize_noinit);
3718 ANHE_w (timers [ev_active (w)]) = (WT)w; 4244 ANHE_w (timers [ev_active (w)]) = (WT)w;
3719 ANHE_at_cache (timers [ev_active (w)]); 4245 ANHE_at_cache (timers [ev_active (w)]);
3720 upheap (timers, ev_active (w)); 4246 upheap (timers, ev_active (w));
3721 4247
3722 EV_FREQUENT_CHECK; 4248 EV_FREQUENT_CHECK;
3723 4249
3724 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/ 4250 /*assert (("libev: internal timer heap corruption", timers [ev_active (w)] == (WT)w));*/
3725} 4251}
3726 4252
3727void noinline 4253ecb_noinline
4254void
3728ev_timer_stop (EV_P_ ev_timer *w) EV_THROW 4255ev_timer_stop (EV_P_ ev_timer *w) EV_NOEXCEPT
3729{ 4256{
3730 clear_pending (EV_A_ (W)w); 4257 clear_pending (EV_A_ (W)w);
3731 if (expect_false (!ev_is_active (w))) 4258 if (ecb_expect_false (!ev_is_active (w)))
3732 return; 4259 return;
3733 4260
3734 EV_FREQUENT_CHECK; 4261 EV_FREQUENT_CHECK;
3735 4262
3736 { 4263 {
… …
3738 4265
3739 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w)); 4266 assert (("libev: internal timer heap corruption", ANHE_w (timers [active]) == (WT)w));
3740 4267
3741 --timercnt; 4268 --timercnt;
3742 4269
3743 if (expect_true (active < timercnt + HEAP0)) 4270 if (ecb_expect_true (active < timercnt + HEAP0))
3744 { 4271 {
3745 timers [active] = timers [timercnt + HEAP0]; 4272 timers [active] = timers [timercnt + HEAP0];
3746 adjustheap (timers, timercnt, active); 4273 adjustheap (timers, timercnt, active);
3747 } 4274 }
3748 } 4275 }
… …
3752 ev_stop (EV_A_ (W)w); 4279 ev_stop (EV_A_ (W)w);
3753 4280
3754 EV_FREQUENT_CHECK; 4281 EV_FREQUENT_CHECK;
3755} 4282}
3756 4283
3757void noinline 4284ecb_noinline
4285void
3758ev_timer_again (EV_P_ ev_timer *w) EV_THROW 4286ev_timer_again (EV_P_ ev_timer *w) EV_NOEXCEPT
3759{ 4287{
3760 EV_FREQUENT_CHECK; 4288 EV_FREQUENT_CHECK;
3761 4289
3762 clear_pending (EV_A_ (W)w); 4290 clear_pending (EV_A_ (W)w);
3763 4291
… …
3780 4308
3781 EV_FREQUENT_CHECK; 4309 EV_FREQUENT_CHECK;
3782} 4310}
3783 4311
3784ev_tstamp 4312ev_tstamp
3785ev_timer_remaining (EV_P_ ev_timer *w) EV_THROW 4313ev_timer_remaining (EV_P_ ev_timer *w) EV_NOEXCEPT
3786{ 4314{
3787 return ev_at (w) - (ev_is_active (w) ? mn_now : 0.); 4315 return ev_at (w) - (ev_is_active (w) ? mn_now : EV_TS_CONST (0.));
3788} 4316}
3789 4317
3790#if EV_PERIODIC_ENABLE 4318#if EV_PERIODIC_ENABLE
3791void noinline 4319ecb_noinline
4320void
3792ev_periodic_start (EV_P_ ev_periodic *w) EV_THROW 4321ev_periodic_start (EV_P_ ev_periodic *w) EV_NOEXCEPT
3793{ 4322{
3794 if (expect_false (ev_is_active (w))) 4323 if (ecb_expect_false (ev_is_active (w)))
3795 return; 4324 return;
4325
4326#if EV_USE_TIMERFD
4327 if (timerfd == -2)
4328 evtimerfd_init (EV_A);
4329#endif
3796 4330
3797 if (w->reschedule_cb) 4331 if (w->reschedule_cb)
3798 ev_at (w) = w->reschedule_cb (w, ev_rt_now); 4332 ev_at (w) = w->reschedule_cb (w, ev_rt_now);
3799 else if (w->interval) 4333 else if (w->interval)
3800 { 4334 {
… …
3806 4340
3807 EV_FREQUENT_CHECK; 4341 EV_FREQUENT_CHECK;
3808 4342
3809 ++periodiccnt; 4343 ++periodiccnt;
3810 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1); 4344 ev_start (EV_A_ (W)w, periodiccnt + HEAP0 - 1);
3811 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, EMPTY2); 4345 array_needsize (ANHE, periodics, periodicmax, ev_active (w) + 1, array_needsize_noinit);
3812 ANHE_w (periodics [ev_active (w)]) = (WT)w; 4346 ANHE_w (periodics [ev_active (w)]) = (WT)w;
3813 ANHE_at_cache (periodics [ev_active (w)]); 4347 ANHE_at_cache (periodics [ev_active (w)]);
3814 upheap (periodics, ev_active (w)); 4348 upheap (periodics, ev_active (w));
3815 4349
3816 EV_FREQUENT_CHECK; 4350 EV_FREQUENT_CHECK;
3817 4351
3818 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/ 4352 /*assert (("libev: internal periodic heap corruption", ANHE_w (periodics [ev_active (w)]) == (WT)w));*/
3819} 4353}
3820 4354
3821void noinline 4355ecb_noinline
4356void
3822ev_periodic_stop (EV_P_ ev_periodic *w) EV_THROW 4357ev_periodic_stop (EV_P_ ev_periodic *w) EV_NOEXCEPT
3823{ 4358{
3824 clear_pending (EV_A_ (W)w); 4359 clear_pending (EV_A_ (W)w);
3825 if (expect_false (!ev_is_active (w))) 4360 if (ecb_expect_false (!ev_is_active (w)))
3826 return; 4361 return;
3827 4362
3828 EV_FREQUENT_CHECK; 4363 EV_FREQUENT_CHECK;
3829 4364
3830 { 4365 {
… …
3832 4367
3833 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w)); 4368 assert (("libev: internal periodic heap corruption", ANHE_w (periodics [active]) == (WT)w));
3834 4369
3835 --periodiccnt; 4370 --periodiccnt;
3836 4371
3837 if (expect_true (active < periodiccnt + HEAP0)) 4372 if (ecb_expect_true (active < periodiccnt + HEAP0))
3838 { 4373 {
3839 periodics [active] = periodics [periodiccnt + HEAP0]; 4374 periodics [active] = periodics [periodiccnt + HEAP0];
3840 adjustheap (periodics, periodiccnt, active); 4375 adjustheap (periodics, periodiccnt, active);
3841 } 4376 }
3842 } 4377 }
… …
3844 ev_stop (EV_A_ (W)w); 4379 ev_stop (EV_A_ (W)w);
3845 4380
3846 EV_FREQUENT_CHECK; 4381 EV_FREQUENT_CHECK;
3847} 4382}
3848 4383
3849void noinline 4384ecb_noinline
4385void
3850ev_periodic_again (EV_P_ ev_periodic *w) EV_THROW 4386ev_periodic_again (EV_P_ ev_periodic *w) EV_NOEXCEPT
3851{ 4387{
3852 /* TODO: use adjustheap and recalculation */ 4388 /* TODO: use adjustheap and recalculation */
3853 ev_periodic_stop (EV_A_ w); 4389 ev_periodic_stop (EV_A_ w);
3854 ev_periodic_start (EV_A_ w); 4390 ev_periodic_start (EV_A_ w);
3855} 4391}
… …
3859# define SA_RESTART 0 4395# define SA_RESTART 0
3860#endif 4396#endif
3861 4397
3862#if EV_SIGNAL_ENABLE 4398#if EV_SIGNAL_ENABLE
3863 4399
3864void noinline 4400ecb_noinline
4401void
3865ev_signal_start (EV_P_ ev_signal *w) EV_THROW 4402ev_signal_start (EV_P_ ev_signal *w) EV_NOEXCEPT
3866{ 4403{
3867 if (expect_false (ev_is_active (w))) 4404 if (ecb_expect_false (ev_is_active (w)))
3868 return; 4405 return;
3869 4406
3870 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG)); 4407 assert (("libev: ev_signal_start called with illegal signal number", w->signum > 0 && w->signum < EV_NSIG));
3871 4408
3872#if EV_MULTIPLICITY 4409#if EV_MULTIPLICITY
… …
3941 } 4478 }
3942 4479
3943 EV_FREQUENT_CHECK; 4480 EV_FREQUENT_CHECK;
3944} 4481}
3945 4482
3946void noinline 4483ecb_noinline
4484void
3947ev_signal_stop (EV_P_ ev_signal *w) EV_THROW 4485ev_signal_stop (EV_P_ ev_signal *w) EV_NOEXCEPT
3948{ 4486{
3949 clear_pending (EV_A_ (W)w); 4487 clear_pending (EV_A_ (W)w);
3950 if (expect_false (!ev_is_active (w))) 4488 if (ecb_expect_false (!ev_is_active (w)))
3951 return; 4489 return;
3952 4490
3953 EV_FREQUENT_CHECK; 4491 EV_FREQUENT_CHECK;
3954 4492
3955 wlist_del (&signals [w->signum - 1].head, (WL)w); 4493 wlist_del (&signals [w->signum - 1].head, (WL)w);
… …
3983#endif 4521#endif
3984 4522
3985#if EV_CHILD_ENABLE 4523#if EV_CHILD_ENABLE
3986 4524
3987void 4525void
3988ev_child_start (EV_P_ ev_child *w) EV_THROW 4526ev_child_start (EV_P_ ev_child *w) EV_NOEXCEPT
3989{ 4527{
3990#if EV_MULTIPLICITY 4528#if EV_MULTIPLICITY
3991 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr)); 4529 assert (("libev: child watchers are only supported in the default loop", loop == ev_default_loop_ptr));
3992#endif 4530#endif
3993 if (expect_false (ev_is_active (w))) 4531 if (ecb_expect_false (ev_is_active (w)))
3994 return; 4532 return;
3995 4533
3996 EV_FREQUENT_CHECK; 4534 EV_FREQUENT_CHECK;
3997 4535
3998 ev_start (EV_A_ (W)w, 1); 4536 ev_start (EV_A_ (W)w, 1);
… …
4000 4538
4001 EV_FREQUENT_CHECK; 4539 EV_FREQUENT_CHECK;
4002} 4540}
4003 4541
4004void 4542void
4005ev_child_stop (EV_P_ ev_child *w) EV_THROW 4543ev_child_stop (EV_P_ ev_child *w) EV_NOEXCEPT
4006{ 4544{
4007 clear_pending (EV_A_ (W)w); 4545 clear_pending (EV_A_ (W)w);
4008 if (expect_false (!ev_is_active (w))) 4546 if (ecb_expect_false (!ev_is_active (w)))
4009 return; 4547 return;
4010 4548
4011 EV_FREQUENT_CHECK; 4549 EV_FREQUENT_CHECK;
4012 4550
4013 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w); 4551 wlist_del (&childs [w->pid & ((EV_PID_HASHSIZE) - 1)], (WL)w);
… …
4027 4565
4028#define DEF_STAT_INTERVAL 5.0074891 4566#define DEF_STAT_INTERVAL 5.0074891
4029#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */ 4567#define NFS_STAT_INTERVAL 30.1074891 /* for filesystems potentially failing inotify */
4030#define MIN_STAT_INTERVAL 0.1074891 4568#define MIN_STAT_INTERVAL 0.1074891
4031 4569
4032static void noinline stat_timer_cb (EV_P_ ev_timer *w_, int revents); 4570ecb_noinline static void stat_timer_cb (EV_P_ ev_timer *w_, int revents);
4033 4571
4034#if EV_USE_INOTIFY 4572#if EV_USE_INOTIFY
4035 4573
4036/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */ 4574/* the * 2 is to allow for alignment padding, which for some reason is >> 8 */
4037# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX) 4575# define EV_INOTIFY_BUFSIZE (sizeof (struct inotify_event) * 2 + NAME_MAX)
4038 4576
4039static void noinline 4577ecb_noinline
4578static void
4040infy_add (EV_P_ ev_stat *w) 4579infy_add (EV_P_ ev_stat *w)
4041{ 4580{
4042 w->wd = inotify_add_watch (fs_fd, w->path, 4581 w->wd = inotify_add_watch (fs_fd, w->path,
4043 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY 4582 IN_ATTRIB | IN_DELETE_SELF | IN_MOVE_SELF | IN_MODIFY
4044 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO 4583 | IN_CREATE | IN_DELETE | IN_MOVED_FROM | IN_MOVED_TO
… …
4108 if (ev_is_active (&w->timer)) ev_ref (EV_A); 4647 if (ev_is_active (&w->timer)) ev_ref (EV_A);
4109 ev_timer_again (EV_A_ &w->timer); 4648 ev_timer_again (EV_A_ &w->timer);
4110 if (ev_is_active (&w->timer)) ev_unref (EV_A); 4649 if (ev_is_active (&w->timer)) ev_unref (EV_A);
4111} 4650}
4112 4651
4113static void noinline 4652ecb_noinline
4653static void
4114infy_del (EV_P_ ev_stat *w) 4654infy_del (EV_P_ ev_stat *w)
4115{ 4655{
4116 int slot; 4656 int slot;
4117 int wd = w->wd; 4657 int wd = w->wd;
4118 4658
… …
4125 4665
4126 /* remove this watcher, if others are watching it, they will rearm */ 4666 /* remove this watcher, if others are watching it, they will rearm */
4127 inotify_rm_watch (fs_fd, wd); 4667 inotify_rm_watch (fs_fd, wd);
4128} 4668}
4129 4669
4130static void noinline 4670ecb_noinline
4671static void
4131infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev) 4672infy_wd (EV_P_ int slot, int wd, struct inotify_event *ev)
4132{ 4673{
4133 if (slot < 0) 4674 if (slot < 0)
4134 /* overflow, need to check for all hash slots */ 4675 /* overflow, need to check for all hash slots */
4135 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot) 4676 for (slot = 0; slot < (EV_INOTIFY_HASHSIZE); ++slot)
… …
4171 infy_wd (EV_A_ ev->wd, ev->wd, ev); 4712 infy_wd (EV_A_ ev->wd, ev->wd, ev);
4172 ofs += sizeof (struct inotify_event) + ev->len; 4713 ofs += sizeof (struct inotify_event) + ev->len;
4173 } 4714 }
4174} 4715}
4175 4716
4176inline_size void ecb_cold 4717inline_size ecb_cold
4718void
4177ev_check_2625 (EV_P) 4719ev_check_2625 (EV_P)
4178{ 4720{
4179 /* kernels < 2.6.25 are borked 4721 /* kernels < 2.6.25 are borked
4180 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html 4722 * http://www.ussg.indiana.edu/hypermail/linux/kernel/0711.3/1208.html
4181 */ 4723 */
… …
4271#else 4813#else
4272# define EV_LSTAT(p,b) lstat (p, b) 4814# define EV_LSTAT(p,b) lstat (p, b)
4273#endif 4815#endif
4274 4816
4275void 4817void
4276ev_stat_stat (EV_P_ ev_stat *w) EV_THROW 4818ev_stat_stat (EV_P_ ev_stat *w) EV_NOEXCEPT
4277{ 4819{
4278 if (lstat (w->path, &w->attr) < 0) 4820 if (lstat (w->path, &w->attr) < 0)
4279 w->attr.st_nlink = 0; 4821 w->attr.st_nlink = 0;
4280 else if (!w->attr.st_nlink) 4822 else if (!w->attr.st_nlink)
4281 w->attr.st_nlink = 1; 4823 w->attr.st_nlink = 1;
4282} 4824}
4283 4825
4284static void noinline 4826ecb_noinline
4827static void
4285stat_timer_cb (EV_P_ ev_timer *w_, int revents) 4828stat_timer_cb (EV_P_ ev_timer *w_, int revents)
4286{ 4829{
4287 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer)); 4830 ev_stat *w = (ev_stat *)(((char *)w_) - offsetof (ev_stat, timer));
4288 4831
4289 ev_statdata prev = w->attr; 4832 ev_statdata prev = w->attr;
… …
4320 ev_feed_event (EV_A_ w, EV_STAT); 4863 ev_feed_event (EV_A_ w, EV_STAT);
4321 } 4864 }
4322} 4865}
4323 4866
4324void 4867void
4325ev_stat_start (EV_P_ ev_stat *w) EV_THROW 4868ev_stat_start (EV_P_ ev_stat *w) EV_NOEXCEPT
4326{ 4869{
4327 if (expect_false (ev_is_active (w))) 4870 if (ecb_expect_false (ev_is_active (w)))
4328 return; 4871 return;
4329 4872
4330 ev_stat_stat (EV_A_ w); 4873 ev_stat_stat (EV_A_ w);
4331 4874
4332 if (w->interval < MIN_STAT_INTERVAL && w->interval) 4875 if (w->interval < MIN_STAT_INTERVAL && w->interval)
… …
4351 4894
4352 EV_FREQUENT_CHECK; 4895 EV_FREQUENT_CHECK;
4353} 4896}
4354 4897
4355void 4898void
4356ev_stat_stop (EV_P_ ev_stat *w) EV_THROW 4899ev_stat_stop (EV_P_ ev_stat *w) EV_NOEXCEPT
4357{ 4900{
4358 clear_pending (EV_A_ (W)w); 4901 clear_pending (EV_A_ (W)w);
4359 if (expect_false (!ev_is_active (w))) 4902 if (ecb_expect_false (!ev_is_active (w)))
4360 return; 4903 return;
4361 4904
4362 EV_FREQUENT_CHECK; 4905 EV_FREQUENT_CHECK;
4363 4906
4364#if EV_USE_INOTIFY 4907#if EV_USE_INOTIFY
… …
4377} 4920}
4378#endif 4921#endif
4379 4922
4380#if EV_IDLE_ENABLE 4923#if EV_IDLE_ENABLE
4381void 4924void
4382ev_idle_start (EV_P_ ev_idle *w) EV_THROW 4925ev_idle_start (EV_P_ ev_idle *w) EV_NOEXCEPT
4383{ 4926{
4384 if (expect_false (ev_is_active (w))) 4927 if (ecb_expect_false (ev_is_active (w)))
4385 return; 4928 return;
4386 4929
4387 pri_adjust (EV_A_ (W)w); 4930 pri_adjust (EV_A_ (W)w);
4388 4931
4389 EV_FREQUENT_CHECK; 4932 EV_FREQUENT_CHECK;
… …
4392 int active = ++idlecnt [ABSPRI (w)]; 4935 int active = ++idlecnt [ABSPRI (w)];
4393 4936
4394 ++idleall; 4937 ++idleall;
4395 ev_start (EV_A_ (W)w, active); 4938 ev_start (EV_A_ (W)w, active);
4396 4939
4397 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, EMPTY2); 4940 array_needsize (ev_idle *, idles [ABSPRI (w)], idlemax [ABSPRI (w)], active, array_needsize_noinit);
4398 idles [ABSPRI (w)][active - 1] = w; 4941 idles [ABSPRI (w)][active - 1] = w;
4399 } 4942 }
4400 4943
4401 EV_FREQUENT_CHECK; 4944 EV_FREQUENT_CHECK;
4402} 4945}
4403 4946
4404void 4947void
4405ev_idle_stop (EV_P_ ev_idle *w) EV_THROW 4948ev_idle_stop (EV_P_ ev_idle *w) EV_NOEXCEPT
4406{ 4949{
4407 clear_pending (EV_A_ (W)w); 4950 clear_pending (EV_A_ (W)w);
4408 if (expect_false (!ev_is_active (w))) 4951 if (ecb_expect_false (!ev_is_active (w)))
4409 return; 4952 return;
4410 4953
4411 EV_FREQUENT_CHECK; 4954 EV_FREQUENT_CHECK;
4412 4955
4413 { 4956 {
… …
4424} 4967}
4425#endif 4968#endif
4426 4969
4427#if EV_PREPARE_ENABLE 4970#if EV_PREPARE_ENABLE
4428void 4971void
4429ev_prepare_start (EV_P_ ev_prepare *w) EV_THROW 4972ev_prepare_start (EV_P_ ev_prepare *w) EV_NOEXCEPT
4430{ 4973{
4431 if (expect_false (ev_is_active (w))) 4974 if (ecb_expect_false (ev_is_active (w)))
4432 return; 4975 return;
4433 4976
4434 EV_FREQUENT_CHECK; 4977 EV_FREQUENT_CHECK;
4435 4978
4436 ev_start (EV_A_ (W)w, ++preparecnt); 4979 ev_start (EV_A_ (W)w, ++preparecnt);
4437 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, EMPTY2); 4980 array_needsize (ev_prepare *, prepares, preparemax, preparecnt, array_needsize_noinit);
4438 prepares [preparecnt - 1] = w; 4981 prepares [preparecnt - 1] = w;
4439 4982
4440 EV_FREQUENT_CHECK; 4983 EV_FREQUENT_CHECK;
4441} 4984}
4442 4985
4443void 4986void
4444ev_prepare_stop (EV_P_ ev_prepare *w) EV_THROW 4987ev_prepare_stop (EV_P_ ev_prepare *w) EV_NOEXCEPT
4445{ 4988{
4446 clear_pending (EV_A_ (W)w); 4989 clear_pending (EV_A_ (W)w);
4447 if (expect_false (!ev_is_active (w))) 4990 if (ecb_expect_false (!ev_is_active (w)))
4448 return; 4991 return;
4449 4992
4450 EV_FREQUENT_CHECK; 4993 EV_FREQUENT_CHECK;
4451 4994
4452 { 4995 {
… …
4462} 5005}
4463#endif 5006#endif
4464 5007
4465#if EV_CHECK_ENABLE 5008#if EV_CHECK_ENABLE
4466void 5009void
4467ev_check_start (EV_P_ ev_check *w) EV_THROW 5010ev_check_start (EV_P_ ev_check *w) EV_NOEXCEPT
4468{ 5011{
4469 if (expect_false (ev_is_active (w))) 5012 if (ecb_expect_false (ev_is_active (w)))
4470 return; 5013 return;
4471 5014
4472 EV_FREQUENT_CHECK; 5015 EV_FREQUENT_CHECK;
4473 5016
4474 ev_start (EV_A_ (W)w, ++checkcnt); 5017 ev_start (EV_A_ (W)w, ++checkcnt);
4475 array_needsize (ev_check *, checks, checkmax, checkcnt, EMPTY2); 5018 array_needsize (ev_check *, checks, checkmax, checkcnt, array_needsize_noinit);
4476 checks [checkcnt - 1] = w; 5019 checks [checkcnt - 1] = w;
4477 5020
4478 EV_FREQUENT_CHECK; 5021 EV_FREQUENT_CHECK;
4479} 5022}
4480 5023
4481void 5024void
4482ev_check_stop (EV_P_ ev_check *w) EV_THROW 5025ev_check_stop (EV_P_ ev_check *w) EV_NOEXCEPT
4483{ 5026{
4484 clear_pending (EV_A_ (W)w); 5027 clear_pending (EV_A_ (W)w);
4485 if (expect_false (!ev_is_active (w))) 5028 if (ecb_expect_false (!ev_is_active (w)))
4486 return; 5029 return;
4487 5030
4488 EV_FREQUENT_CHECK; 5031 EV_FREQUENT_CHECK;
4489 5032
4490 { 5033 {
… …
4499 EV_FREQUENT_CHECK; 5042 EV_FREQUENT_CHECK;
4500} 5043}
4501#endif 5044#endif
4502 5045
4503#if EV_EMBED_ENABLE 5046#if EV_EMBED_ENABLE
4504void noinline 5047ecb_noinline
5048void
4505ev_embed_sweep (EV_P_ ev_embed *w) EV_THROW 5049ev_embed_sweep (EV_P_ ev_embed *w) EV_NOEXCEPT
4506{ 5050{
4507 ev_run (w->other, EVRUN_NOWAIT); 5051 ev_run (w->other, EVRUN_NOWAIT);
4508} 5052}
4509 5053
4510static void 5054static void
… …
4532 ev_run (EV_A_ EVRUN_NOWAIT); 5076 ev_run (EV_A_ EVRUN_NOWAIT);
4533 } 5077 }
4534 } 5078 }
4535} 5079}
4536 5080
5081#if EV_FORK_ENABLE
4537static void 5082static void
4538embed_fork_cb (EV_P_ ev_fork *fork_w, int revents) 5083embed_fork_cb (EV_P_ ev_fork *fork_w, int revents)
4539{ 5084{
4540 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork)); 5085 ev_embed *w = (ev_embed *)(((char *)fork_w) - offsetof (ev_embed, fork));
4541 5086
… …
4548 ev_run (EV_A_ EVRUN_NOWAIT); 5093 ev_run (EV_A_ EVRUN_NOWAIT);
4549 } 5094 }
4550 5095
4551 ev_embed_start (EV_A_ w); 5096 ev_embed_start (EV_A_ w);
4552} 5097}
5098#endif
4553 5099
4554#if 0 5100#if 0
4555static void 5101static void
4556embed_idle_cb (EV_P_ ev_idle *idle, int revents) 5102embed_idle_cb (EV_P_ ev_idle *idle, int revents)
4557{ 5103{
4558 ev_idle_stop (EV_A_ idle); 5104 ev_idle_stop (EV_A_ idle);
4559} 5105}
4560#endif 5106#endif
4561 5107
4562void 5108void
4563ev_embed_start (EV_P_ ev_embed *w) EV_THROW 5109ev_embed_start (EV_P_ ev_embed *w) EV_NOEXCEPT
4564{ 5110{
4565 if (expect_false (ev_is_active (w))) 5111 if (ecb_expect_false (ev_is_active (w)))
4566 return; 5112 return;
4567 5113
4568 { 5114 {
4569 EV_P = w->other; 5115 EV_P = w->other;
4570 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ())); 5116 assert (("libev: loop to be embedded is not embeddable", backend & ev_embeddable_backends ()));
… …
4578 5124
4579 ev_prepare_init (&w->prepare, embed_prepare_cb); 5125 ev_prepare_init (&w->prepare, embed_prepare_cb);
4580 ev_set_priority (&w->prepare, EV_MINPRI); 5126 ev_set_priority (&w->prepare, EV_MINPRI);
4581 ev_prepare_start (EV_A_ &w->prepare); 5127 ev_prepare_start (EV_A_ &w->prepare);
4582 5128
5129#if EV_FORK_ENABLE
4583 ev_fork_init (&w->fork, embed_fork_cb); 5130 ev_fork_init (&w->fork, embed_fork_cb);
4584 ev_fork_start (EV_A_ &w->fork); 5131 ev_fork_start (EV_A_ &w->fork);
5132#endif
4585 5133
4586 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/ 5134 /*ev_idle_init (&w->idle, e,bed_idle_cb);*/
4587 5135
4588 ev_start (EV_A_ (W)w, 1); 5136 ev_start (EV_A_ (W)w, 1);
4589 5137
4590 EV_FREQUENT_CHECK; 5138 EV_FREQUENT_CHECK;
4591} 5139}
4592 5140
4593void 5141void
4594ev_embed_stop (EV_P_ ev_embed *w) EV_THROW 5142ev_embed_stop (EV_P_ ev_embed *w) EV_NOEXCEPT
4595{ 5143{
4596 clear_pending (EV_A_ (W)w); 5144 clear_pending (EV_A_ (W)w);
4597 if (expect_false (!ev_is_active (w))) 5145 if (ecb_expect_false (!ev_is_active (w)))
4598 return; 5146 return;
4599 5147
4600 EV_FREQUENT_CHECK; 5148 EV_FREQUENT_CHECK;
4601 5149
4602 ev_io_stop (EV_A_ &w->io); 5150 ev_io_stop (EV_A_ &w->io);
4603 ev_prepare_stop (EV_A_ &w->prepare); 5151 ev_prepare_stop (EV_A_ &w->prepare);
5152#if EV_FORK_ENABLE
4604 ev_fork_stop (EV_A_ &w->fork); 5153 ev_fork_stop (EV_A_ &w->fork);
5154#endif
4605 5155
4606 ev_stop (EV_A_ (W)w); 5156 ev_stop (EV_A_ (W)w);
4607 5157
4608 EV_FREQUENT_CHECK; 5158 EV_FREQUENT_CHECK;
4609} 5159}
4610#endif 5160#endif
4611 5161
4612#if EV_FORK_ENABLE 5162#if EV_FORK_ENABLE
4613void 5163void
4614ev_fork_start (EV_P_ ev_fork *w) EV_THROW 5164ev_fork_start (EV_P_ ev_fork *w) EV_NOEXCEPT
4615{ 5165{
4616 if (expect_false (ev_is_active (w))) 5166 if (ecb_expect_false (ev_is_active (w)))
4617 return; 5167 return;
4618 5168
4619 EV_FREQUENT_CHECK; 5169 EV_FREQUENT_CHECK;
4620 5170
4621 ev_start (EV_A_ (W)w, ++forkcnt); 5171 ev_start (EV_A_ (W)w, ++forkcnt);
4622 array_needsize (ev_fork *, forks, forkmax, forkcnt, EMPTY2); 5172 array_needsize (ev_fork *, forks, forkmax, forkcnt, array_needsize_noinit);
4623 forks [forkcnt - 1] = w; 5173 forks [forkcnt - 1] = w;
4624 5174
4625 EV_FREQUENT_CHECK; 5175 EV_FREQUENT_CHECK;
4626} 5176}
4627 5177
4628void 5178void
4629ev_fork_stop (EV_P_ ev_fork *w) EV_THROW 5179ev_fork_stop (EV_P_ ev_fork *w) EV_NOEXCEPT
4630{ 5180{
4631 clear_pending (EV_A_ (W)w); 5181 clear_pending (EV_A_ (W)w);
4632 if (expect_false (!ev_is_active (w))) 5182 if (ecb_expect_false (!ev_is_active (w)))
4633 return; 5183 return;
4634 5184
4635 EV_FREQUENT_CHECK; 5185 EV_FREQUENT_CHECK;
4636 5186
4637 { 5187 {
… …
4647} 5197}
4648#endif 5198#endif
4649 5199
4650#if EV_CLEANUP_ENABLE 5200#if EV_CLEANUP_ENABLE
4651void 5201void
4652ev_cleanup_start (EV_P_ ev_cleanup *w) EV_THROW 5202ev_cleanup_start (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4653{ 5203{
4654 if (expect_false (ev_is_active (w))) 5204 if (ecb_expect_false (ev_is_active (w)))
4655 return; 5205 return;
4656 5206
4657 EV_FREQUENT_CHECK; 5207 EV_FREQUENT_CHECK;
4658 5208
4659 ev_start (EV_A_ (W)w, ++cleanupcnt); 5209 ev_start (EV_A_ (W)w, ++cleanupcnt);
4660 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, EMPTY2); 5210 array_needsize (ev_cleanup *, cleanups, cleanupmax, cleanupcnt, array_needsize_noinit);
4661 cleanups [cleanupcnt - 1] = w; 5211 cleanups [cleanupcnt - 1] = w;
4662 5212
4663 /* cleanup watchers should never keep a refcount on the loop */ 5213 /* cleanup watchers should never keep a refcount on the loop */
4664 ev_unref (EV_A); 5214 ev_unref (EV_A);
4665 EV_FREQUENT_CHECK; 5215 EV_FREQUENT_CHECK;
4666} 5216}
4667 5217
4668void 5218void
4669ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_THROW 5219ev_cleanup_stop (EV_P_ ev_cleanup *w) EV_NOEXCEPT
4670{ 5220{
4671 clear_pending (EV_A_ (W)w); 5221 clear_pending (EV_A_ (W)w);
4672 if (expect_false (!ev_is_active (w))) 5222 if (ecb_expect_false (!ev_is_active (w)))
4673 return; 5223 return;
4674 5224
4675 EV_FREQUENT_CHECK; 5225 EV_FREQUENT_CHECK;
4676 ev_ref (EV_A); 5226 ev_ref (EV_A);
4677 5227
… …
4688} 5238}
4689#endif 5239#endif
4690 5240
4691#if EV_ASYNC_ENABLE 5241#if EV_ASYNC_ENABLE
4692void 5242void
4693ev_async_start (EV_P_ ev_async *w) EV_THROW 5243ev_async_start (EV_P_ ev_async *w) EV_NOEXCEPT
4694{ 5244{
4695 if (expect_false (ev_is_active (w))) 5245 if (ecb_expect_false (ev_is_active (w)))
4696 return; 5246 return;
4697 5247
4698 w->sent = 0; 5248 w->sent = 0;
4699 5249
4700 evpipe_init (EV_A); 5250 evpipe_init (EV_A);
4701 5251
4702 EV_FREQUENT_CHECK; 5252 EV_FREQUENT_CHECK;
4703 5253
4704 ev_start (EV_A_ (W)w, ++asynccnt); 5254 ev_start (EV_A_ (W)w, ++asynccnt);
4705 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, EMPTY2); 5255 array_needsize (ev_async *, asyncs, asyncmax, asynccnt, array_needsize_noinit);
4706 asyncs [asynccnt - 1] = w; 5256 asyncs [asynccnt - 1] = w;
4707 5257
4708 EV_FREQUENT_CHECK; 5258 EV_FREQUENT_CHECK;
4709} 5259}
4710 5260
4711void 5261void
4712ev_async_stop (EV_P_ ev_async *w) EV_THROW 5262ev_async_stop (EV_P_ ev_async *w) EV_NOEXCEPT
4713{ 5263{
4714 clear_pending (EV_A_ (W)w); 5264 clear_pending (EV_A_ (W)w);
4715 if (expect_false (!ev_is_active (w))) 5265 if (ecb_expect_false (!ev_is_active (w)))
4716 return; 5266 return;
4717 5267
4718 EV_FREQUENT_CHECK; 5268 EV_FREQUENT_CHECK;
4719 5269
4720 { 5270 {
… …
4728 5278
4729 EV_FREQUENT_CHECK; 5279 EV_FREQUENT_CHECK;
4730} 5280}
4731 5281
4732void 5282void
4733ev_async_send (EV_P_ ev_async *w) EV_THROW 5283ev_async_send (EV_P_ ev_async *w) EV_NOEXCEPT
4734{ 5284{
4735 w->sent = 1; 5285 w->sent = 1;
4736 evpipe_write (EV_A_ &async_pending); 5286 evpipe_write (EV_A_ &async_pending);
4737} 5287}
4738#endif 5288#endif
… …
4775 5325
4776 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io)); 5326 once_cb (EV_A_ once, revents | ev_clear_pending (EV_A_ &once->io));
4777} 5327}
4778 5328
4779void 5329void
4780ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_THROW 5330ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, void *arg), void *arg) EV_NOEXCEPT
4781{ 5331{
4782 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once)); 5332 struct ev_once *once = (struct ev_once *)ev_malloc (sizeof (struct ev_once));
4783
4784 if (expect_false (!once))
4785 {
4786 cb (EV_ERROR | EV_READ | EV_WRITE | EV_TIMER, arg);
4787 return;
4788 }
4789 5333
4790 once->cb = cb; 5334 once->cb = cb;
4791 once->arg = arg; 5335 once->arg = arg;
4792 5336
4793 ev_init (&once->io, once_cb_io); 5337 ev_init (&once->io, once_cb_io);
… …
4806} 5350}
4807 5351
4808/*****************************************************************************/ 5352/*****************************************************************************/
4809 5353
4810#if EV_WALK_ENABLE 5354#if EV_WALK_ENABLE
4811void ecb_cold 5355ecb_cold
5356void
4812ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_THROW 5357ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w)) EV_NOEXCEPT
4813{ 5358{
4814 int i, j; 5359 int i, j;
4815 ev_watcher_list *wl, *wn; 5360 ev_watcher_list *wl, *wn;
4816 5361
4817 if (types & (EV_IO | EV_EMBED)) 5362 if (types & (EV_IO | EV_EMBED))

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