1/* 2 * Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc. 3 * All rights reserved. 4 * 5 * This source code is licensed under both the BSD-style license (found in the 6 * LICENSE file in the root directory of this source tree) and the GPLv2 (found 7 * in the COPYING file in the root directory of this source tree). 8 * You may select, at your option, one of the above-listed licenses. 9 */ 10 11#ifndef PLATFORM_H_MODULE 12#define PLATFORM_H_MODULE 13 14#if defined (__cplusplus) 15extern "C" { 16#endif 17 18 19 20/* ************************************** 21* Compiler Options 22****************************************/ 23#if defined(_MSC_VER) 24# define _CRT_SECURE_NO_WARNINGS /* Disable Visual Studio warning messages for fopen, strncpy, strerror */ 25# if (_MSC_VER <= 1800) /* 1800 == Visual Studio 2013 */ 26# define _CRT_SECURE_NO_DEPRECATE /* VS2005 - must be declared before <io.h> and <windows.h> */ 27# define snprintf sprintf_s /* snprintf unsupported by Visual <= 2013 */ 28# endif 29#endif 30 31 32/* ************************************** 33* Detect 64-bit OS 34* http://nadeausoftware.com/articles/2012/02/c_c_tip_how_detect_processor_type_using_compiler_predefined_macros 35****************************************/ 36#if defined __ia64 || defined _M_IA64 /* Intel Itanium */ \ 37 || defined __powerpc64__ || defined __ppc64__ || defined __PPC64__ /* POWER 64-bit */ \ 38 || (defined __sparc && (defined __sparcv9 || defined __sparc_v9__ || defined __arch64__)) || defined __sparc64__ /* SPARC 64-bit */ \ 39 || defined __x86_64__s || defined _M_X64 /* x86 64-bit */ \ 40 || defined __arm64__ || defined __aarch64__ || defined __ARM64_ARCH_8__ /* ARM 64-bit */ \ 41 || (defined __mips && (__mips == 64 || __mips == 4 || __mips == 3)) /* MIPS 64-bit */ \ 42 || defined _LP64 || defined __LP64__ /* NetBSD, OpenBSD */ || defined __64BIT__ /* AIX */ || defined _ADDR64 /* Cray */ \ 43 || (defined __SIZEOF_POINTER__ && __SIZEOF_POINTER__ == 8) /* gcc */ 44# if !defined(__64BIT__) 45# define __64BIT__ 1 46# endif 47#endif 48 49 50/* ********************************************************* 51* Turn on Large Files support (>4GB) for 32-bit Linux/Unix 52***********************************************************/ 53#if !defined(__64BIT__) || defined(__MINGW32__) /* No point defining Large file for 64 bit but MinGW-w64 requires it */ 54# if !defined(_FILE_OFFSET_BITS) 55# define _FILE_OFFSET_BITS 64 /* turn off_t into a 64-bit type for ftello, fseeko */ 56# endif 57# if !defined(_LARGEFILE_SOURCE) /* obsolete macro, replaced with _FILE_OFFSET_BITS */ 58# define _LARGEFILE_SOURCE 1 /* Large File Support extension (LFS) - fseeko, ftello */ 59# endif 60# if defined(_AIX) || defined(__hpux) 61# define _LARGE_FILES /* Large file support on 32-bits AIX and HP-UX */ 62# endif 63#endif 64 65 66/* ************************************************************ 67* Detect POSIX version 68* PLATFORM_POSIX_VERSION = -1 for non-Unix e.g. Windows 69* PLATFORM_POSIX_VERSION = 0 for Unix-like non-POSIX 70* PLATFORM_POSIX_VERSION >= 1 is equal to found _POSIX_VERSION 71***************************************************************/ 72#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) /* UNIX-like OS */ \ 73 || defined(__midipix__) || defined(__VMS)) 74# if (defined(__APPLE__) && defined(__MACH__)) || defined(__SVR4) || defined(_AIX) || defined(__hpux) /* POSIX.1-2001 (SUSv3) conformant */ \ 75 || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* BSD distros */ 76# define PLATFORM_POSIX_VERSION 200112L 77# else 78# if defined(__linux__) || defined(__linux) 79# ifndef _POSIX_C_SOURCE 80# define _POSIX_C_SOURCE 200112L /* use feature test macro */ 81# endif 82# endif 83# include <unistd.h> /* declares _POSIX_VERSION */ 84# if defined(_POSIX_VERSION) /* POSIX compliant */ 85# define PLATFORM_POSIX_VERSION _POSIX_VERSION 86# else 87# define PLATFORM_POSIX_VERSION 0 88# endif 89# endif 90#endif 91#if !defined(PLATFORM_POSIX_VERSION) 92# define PLATFORM_POSIX_VERSION -1 93#endif 94 95 96/*-********************************************* 97* Detect if isatty() and fileno() are available 98************************************************/ 99#if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L) || defined(__DJGPP__) 100# include <unistd.h> /* isatty */ 101# define IS_CONSOLE(stdStream) isatty(fileno(stdStream)) 102#elif defined(MSDOS) || defined(OS2) || defined(__CYGWIN__) 103# include <io.h> /* _isatty */ 104# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream)) 105#elif defined(WIN32) || defined(_WIN32) 106# include <io.h> /* _isatty */ 107# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */ 108# include <stdio.h> /* FILE */ 109static __inline int IS_CONSOLE(FILE* stdStream) { 110 DWORD dummy; 111 return _isatty(_fileno(stdStream)) && GetConsoleMode((HANDLE)_get_osfhandle(_fileno(stdStream)), &dummy); 112} 113#else 114# define IS_CONSOLE(stdStream) 0 115#endif 116 117 118/****************************** 119* OS-specific IO behaviors 120******************************/ 121#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) 122# include <fcntl.h> /* _O_BINARY */ 123# include <io.h> /* _setmode, _fileno, _get_osfhandle */ 124# if !defined(__DJGPP__) 125# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */ 126# include <winioctl.h> /* FSCTL_SET_SPARSE */ 127# define SET_BINARY_MODE(file) { int const unused=_setmode(_fileno(file), _O_BINARY); (void)unused; } 128# define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPARSE, 0, 0, 0, 0, &dw, 0); } 129# else 130# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) 131# define SET_SPARSE_FILE_MODE(file) 132# endif 133#else 134# define SET_BINARY_MODE(file) 135# define SET_SPARSE_FILE_MODE(file) 136#endif 137 138 139#ifndef ZSTD_SPARSE_DEFAULT 140# if (defined(__APPLE__) && defined(__MACH__)) 141# define ZSTD_SPARSE_DEFAULT 0 142# else 143# define ZSTD_SPARSE_DEFAULT 1 144# endif 145#endif 146 147 148#if defined (__cplusplus) 149} 150#endif 151 152#endif /* PLATFORM_H_MODULE */ 153