mirror of
https://github.com/facebook/zstd.git
synced 2025-11-04 00:02:59 -05:00
155 lines
6.4 KiB
C
155 lines
6.4 KiB
C
/**
|
||
* platform.h - compiler and OS detection
|
||
*
|
||
* Copyright (c) 2016-present, Przemyslaw Skibinski, Yann Collet, Facebook, Inc.
|
||
* All rights reserved.
|
||
*
|
||
* This source code is licensed under the BSD-style license found in the
|
||
* LICENSE file in the root directory of this source tree. An additional grant
|
||
* of patent rights can be found in the PATENTS file in the same directory.
|
||
*/
|
||
|
||
#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 */
|
||
# define _CRT_SECURE_NO_DEPRECATE /* VS2005 - must be declared before <io.h> and <windows.h> */
|
||
# if (_MSC_VER <= 1800) /* (1800 = Visual Studio 2013) */
|
||
# 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__) /* BSD distros */
|
||
# define PLATFORM_POSIX_VERSION 200112L
|
||
# else
|
||
# if defined(__linux__) || defined(__linux)
|
||
# ifndef _POSIX_C_SOURCE
|
||
# define _POSIX_C_SOURCE 200112L /* 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
|
||
|
||
|
||
#ifndef ZSTD_SPARSE_DEFAULT
|
||
# if (defined(__APPLE__) && defined(__MACH__))
|
||
# define ZSTD_SPARSE_DEFAULT 0
|
||
# else
|
||
# define ZSTD_SPARSE_DEFAULT 1
|
||
# endif
|
||
#endif
|
||
|
||
|
||
#if defined (__cplusplus)
|
||
}
|
||
#endif
|
||
|
||
#endif /* PLATFORM_H_MODULE */
|