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v1.9.3
programs/platform.h
155 строк
7 KB
Yann Collet
LZ4IO_openDstFile() doesn't need pref mutability
14 ноя 2020, 22:13
14 ноя 2020, 22:13
7315c6e
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/* platform.h - compiler and OS detection Copyright (C) 2016-present, Przemyslaw Skibinski, Yann Collet This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef PLATFORM_H_MODULE #define PLATFORM_H_MODULE #if defined (__cplusplus) extern "C" { #endif /* ************************************** * Compiler Options ****************************************/ #if defined(_MSC_VER) # define _CRT_SECURE_NO_WARNINGS /* Disable Visual Studio warning messages for fopen, strncpy, strerror */ # if (_MSC_VER <= 1800) /* (1800 = Visual Studio 2013) */ # define _CRT_SECURE_NO_DEPRECATE /* VS2005 - must be declared before <io.h> and <windows.h> */ # define snprintf sprintf_s /* snprintf unsupported by Visual <= 2013 */ # endif #endif /* ************************************** * Detect 64-bit OS * http://nadeausoftware.com/articles/2012/02/c_c_tip_how_detect_processor_type_using_compiler_predefined_macros ****************************************/ #if defined __ia64 || defined _M_IA64 /* Intel Itanium */ \ || defined __powerpc64__ || defined __ppc64__ || defined __PPC64__ /* POWER 64-bit */ \ || (defined __sparc && (defined __sparcv9 || defined __sparc_v9__ || defined __arch64__)) || defined __sparc64__ /* SPARC 64-bit */ \ || defined __x86_64__s || defined _M_X64 /* x86 64-bit */ \ || defined __arm64__ || defined __aarch64__ || defined __ARM64_ARCH_8__ /* ARM 64-bit */ \ || (defined __mips && (__mips == 64 || __mips == 4 || __mips == 3)) /* MIPS 64-bit */ \ || defined _LP64 || defined __LP64__ /* NetBSD, OpenBSD */ || defined __64BIT__ /* AIX */ || defined _ADDR64 /* Cray */ \ || (defined __SIZEOF_POINTER__ && __SIZEOF_POINTER__ == 8) /* gcc */ # if !defined(__64BIT__) # define __64BIT__ 1 # endif #endif /* ********************************************************* * Turn on Large Files support (>4GB) for 32-bit Linux/Unix ***********************************************************/ #if !defined(__64BIT__) || defined(__MINGW32__) /* No point defining Large file for 64 bit but MinGW-w64 requires it */ # if !defined(_FILE_OFFSET_BITS) # define _FILE_OFFSET_BITS 64 /* turn off_t into a 64-bit type for ftello, fseeko */ # endif # if !defined(_LARGEFILE_SOURCE) /* obsolete macro, replaced with _FILE_OFFSET_BITS */ # define _LARGEFILE_SOURCE 1 /* Large File Support extension (LFS) - fseeko, ftello */ # endif # if defined(_AIX) || defined(__hpux) # define _LARGE_FILES /* Large file support on 32-bits AIX and HP-UX */ # endif #endif /* ************************************************************ * Detect POSIX version * PLATFORM_POSIX_VERSION = -1 for non-Unix e.g. Windows * PLATFORM_POSIX_VERSION = 0 for Unix-like non-POSIX * PLATFORM_POSIX_VERSION >= 1 is equal to found _POSIX_VERSION ************************************************************** */ #if !defined(_WIN32) && (defined(__unix__) || defined(__unix) || (defined(__APPLE__) && defined(__MACH__)) /* UNIX-like OS */ \ || defined(__midipix__) || defined(__VMS)) # if (defined(__APPLE__) && defined(__MACH__)) || defined(__SVR4) || defined(_AIX) || defined(__hpux) /* POSIX.1–2001 (SUSv3) conformant */ \ || defined(__DragonFly__) || defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__MidnightBSD__) /* BSD distros */ \ || defined(__HAIKU__) # define PLATFORM_POSIX_VERSION 200112L # else # if defined(__linux__) || defined(__linux) # ifndef _POSIX_C_SOURCE # define _POSIX_C_SOURCE 200809L /* use feature test macro */ # endif # endif # include <unistd.h> /* declares _POSIX_VERSION */ # if defined(_POSIX_VERSION) /* POSIX compliant */ # define PLATFORM_POSIX_VERSION _POSIX_VERSION # else # define PLATFORM_POSIX_VERSION 0 # endif # endif #endif #if !defined(PLATFORM_POSIX_VERSION) # define PLATFORM_POSIX_VERSION -1 #endif /*-********************************************* * Detect if isatty() and fileno() are available *********************************************** */ #if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L) || defined(__DJGPP__) # include <unistd.h> /* isatty */ # define IS_CONSOLE(stdStream) isatty(fileno(stdStream)) #elif defined(MSDOS) || defined(OS2) || defined(__CYGWIN__) # include <io.h> /* _isatty */ # define IS_CONSOLE(stdStream) _isatty(_fileno(stdStream)) #elif defined(WIN32) || defined(_WIN32) # include <io.h> /* _isatty */ # include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */ # include <stdio.h> /* FILE */ static __inline int IS_CONSOLE(FILE* stdStream) { DWORD dummy; return _isatty(_fileno(stdStream)) && GetConsoleMode((HANDLE)_get_osfhandle(_fileno(stdStream)), &dummy); } #else # define IS_CONSOLE(stdStream) 0 #endif /****************************** * OS-specific Includes ***************************** */ #if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32) # include <fcntl.h> /* _O_BINARY */ # include <io.h> /* _setmode, _fileno, _get_osfhandle */ # if !defined(__DJGPP__) # include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */ # include <winioctl.h> /* FSCTL_SET_SPARSE */ # define SET_BINARY_MODE(file) { int unused=_setmode(_fileno(file), _O_BINARY); (void)unused; } # define SET_SPARSE_FILE_MODE(file) { DWORD dw; DeviceIoControl((HANDLE) _get_osfhandle(_fileno(file)), FSCTL_SET_SPARSE, 0, 0, 0, 0, &dw, 0); } # else # define SET_BINARY_MODE(file) setmode(fileno(file), O_BINARY) # define SET_SPARSE_FILE_MODE(file) # endif #else # define SET_BINARY_MODE(file) # define SET_SPARSE_FILE_MODE(file) #endif #if defined (__cplusplus) } #endif #endif /* PLATFORM_H_MODULE */