155 lines
6.4 KiB
C
155 lines
6.4 KiB
C
/**
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* platform.h - compiler and OS detection
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*
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* Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#ifndef PLATFORM_H_MODULE
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#define PLATFORM_H_MODULE
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#if defined (__cplusplus)
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extern "C" {
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#endif
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/* **************************************
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* Compiler Options
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****************************************/
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#if defined(_MSC_VER)
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# define _CRT_SECURE_NO_WARNINGS /* Disable Visual Studio warning messages for fopen, strncpy, strerror */
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# define _CRT_SECURE_NO_DEPRECATE /* VS2005 - must be declared before <io.h> and <windows.h> */
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# if (_MSC_VER <= 1800) /* (1800 = Visual Studio 2013) */
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# define snprintf sprintf_s /* snprintf unsupported by Visual <= 2013 */
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# endif
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#endif
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/* **************************************
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* Detect 64-bit OS
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* http://nadeausoftware.com/articles/2012/02/c_c_tip_how_detect_processor_type_using_compiler_predefined_macros
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****************************************/
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#if defined __ia64 || defined _M_IA64 /* Intel Itanium */ \
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|| defined __powerpc64__ || defined __ppc64__ || defined __PPC64__ /* POWER 64-bit */ \
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|| (defined __sparc && (defined __sparcv9 || defined __sparc_v9__ || defined __arch64__)) || defined __sparc64__ /* SPARC 64-bit */ \
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|| defined __x86_64__s || defined _M_X64 /* x86 64-bit */ \
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|| defined __arm64__ || defined __aarch64__ || defined __ARM64_ARCH_8__ /* ARM 64-bit */ \
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|| (defined __mips && (__mips == 64 || __mips == 4 || __mips == 3)) /* MIPS 64-bit */ \
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|| defined _LP64 || defined __LP64__ /* NetBSD, OpenBSD */ || defined __64BIT__ /* AIX */ || defined _ADDR64 /* Cray */ \
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|| (defined __SIZEOF_POINTER__ && __SIZEOF_POINTER__ == 8) /* gcc */
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# if !defined(__64BIT__)
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# define __64BIT__ 1
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# endif
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#endif
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/* *********************************************************
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* Turn on Large Files support (>4GB) for 32-bit Linux/Unix
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***********************************************************/
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#if !defined(__64BIT__) || defined(__MINGW32__) /* No point defining Large file for 64 bit but MinGW-w64 requires it */
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# if !defined(_FILE_OFFSET_BITS)
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# define _FILE_OFFSET_BITS 64 /* turn off_t into a 64-bit type for ftello, fseeko */
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# endif
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# if !defined(_LARGEFILE_SOURCE) /* obsolete macro, replaced with _FILE_OFFSET_BITS */
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# define _LARGEFILE_SOURCE 1 /* Large File Support extension (LFS) - fseeko, ftello */
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# endif
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# if defined(_AIX) || defined(__hpux)
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# define _LARGE_FILES /* Large file support on 32-bits AIX and HP-UX */
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# endif
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#endif
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/* ************************************************************
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* Detect POSIX version
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* PLATFORM_POSIX_VERSION = -1 for non-Unix e.g. Windows
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* PLATFORM_POSIX_VERSION = 0 for Unix-like non-POSIX
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* PLATFORM_POSIX_VERSION >= 1 is equal to found _POSIX_VERSION
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***************************************************************/
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#if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) /* UNIX-like OS */ \
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|| defined(__midipix__) || defined(__VMS))
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# if (defined(__APPLE__) && defined(__MACH__)) || defined(__SVR4) || defined(_AIX) || defined(__hpux) /* POSIX.1–2001 (SUSv3) conformant */ \
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|| defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) /* BSD distros */
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# define PLATFORM_POSIX_VERSION 200112L
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# else
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# if defined(__linux__) || defined(__linux)
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# ifndef _POSIX_C_SOURCE
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# define _POSIX_C_SOURCE 200112L /* use feature test macro */
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# endif
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# endif
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# include <unistd.h> /* declares _POSIX_VERSION */
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# if defined(_POSIX_VERSION) /* POSIX compliant */
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# define PLATFORM_POSIX_VERSION _POSIX_VERSION
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# else
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# define PLATFORM_POSIX_VERSION 0
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# endif
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# endif
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#endif
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#if !defined(PLATFORM_POSIX_VERSION)
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# define PLATFORM_POSIX_VERSION -1
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#endif
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/*-*********************************************
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* Detect if isatty() and fileno() are available
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************************************************/
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#if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L) || defined(__DJGPP__)
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# include <unistd.h> /* isatty */
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# define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
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#elif defined(MSDOS) || defined(OS2) || defined(__CYGWIN__)
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# include <io.h> /* _isatty */
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# define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream))
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#elif defined(WIN32) || defined(_WIN32)
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# include <io.h> /* _isatty */
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# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
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# include <stdio.h> /* FILE */
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static __inline int IS_CONSOLE(FILE* stdStream)
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{
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DWORD dummy;
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return _isatty(_fileno(stdStream)) && GetConsoleMode((HANDLE)_get_osfhandle(_fileno(stdStream)), &dummy);
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}
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#else
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# define IS_CONSOLE(stdStream) 0
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#endif
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/******************************
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* OS-specific Includes
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******************************/
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#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32)
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# include <fcntl.h> /* _O_BINARY */
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# include <io.h> /* _setmode, _fileno, _get_osfhandle */
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# if !defined(__DJGPP__)
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# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
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# include <winioctl.h> /* FSCTL_SET_SPARSE */
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# define SET_BINARY_MODE(file) { int unused=_setmode(_fileno(file), _O_BINARY); (void)unused; }
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# define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPARSE, 0, 0, 0, 0, &dw, 0); }
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# else
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# define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY)
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# define SET_SPARSE_FILE_MODE(file)
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# endif
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#else
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# define SET_BINARY_MODE(file)
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# define SET_SPARSE_FILE_MODE(file)
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#endif
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#ifndef ZSTD_SPARSE_DEFAULT
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# if (defined(__APPLE__) && defined(__MACH__))
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# define ZSTD_SPARSE_DEFAULT 0
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# else
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# define ZSTD_SPARSE_DEFAULT 1
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# endif
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#endif
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#if defined (__cplusplus)
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}
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#endif
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#endif /* PLATFORM_H_MODULE */
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