* 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 */
+# 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
+# pragma warning(disable : 4127) /* disable: C4127: conditional expression is constant */
#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(__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 */
+# 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 */
+# 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 */
+# 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
+* PLATFORM_POSIX_VERSION = 0 for non-Unix e.g. Windows
+* PLATFORM_POSIX_VERSION = 1 for Unix-like but non-POSIX
+* PLATFORM_POSIX_VERSION > 1 is equal to found _POSIX_VERSION
+* Value of PLATFORM_POSIX_VERSION can be forced on command line
***************************************************************/
-#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 */ \
+#ifndef PLATFORM_POSIX_VERSION
+
+# 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 */
+ /* exception rule : force posix version to 200112L,
+ * note: it's better to use unistd.h's _POSIX_VERSION whenever possible */
# define PLATFORM_POSIX_VERSION 200112L
-# else
+
+/* try to determine posix version through official unistd.h's _POSIX_VERSION (http://pubs.opengroup.org/onlinepubs/7908799/xsh/unistd.h.html).
+ * note : there is no simple way to know in advance if <unistd.h> is present or not on target system,
+ * Posix specification mandates its presence and its content, but target system must respect this spec.
+ * It's necessary to _not_ #include <unistd.h> whenever target OS is not unix-like
+ * otherwise it will block preprocessing stage.
+ * The following list of build macros tries to "guess" if target OS is likely unix-like, and therefore can #include <unistd.h>
+ */
+# elif !defined(_WIN32) \
+ && ( defined(__unix__) || defined(__unix) \
+ || defined(__midipix__) || defined(__VMS) || defined(__HAIKU__) )
+
# if defined(__linux__) || defined(__linux)
# ifndef _POSIX_C_SOURCE
-# define _POSIX_C_SOURCE 200112L /* use feature test macro */
+# define _POSIX_C_SOURCE 200112L /* feature test macro : https://www.gnu.org/software/libc/manual/html_node/Feature-Test-Macros.html */
# 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
+# define PLATFORM_POSIX_VERSION 1
# endif
+
+# else /* non-unix target platform (like Windows) */
+# define PLATFORM_POSIX_VERSION 0
# endif
-#endif
-#if !defined(PLATFORM_POSIX_VERSION)
-# define PLATFORM_POSIX_VERSION -1
-#endif
+
+#endif /* PLATFORM_POSIX_VERSION */
/*-*********************************************
* Detect if isatty() and fileno() are available
************************************************/
-#if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 1)) || (PLATFORM_POSIX_VERSION >= 200112L) || defined(__DJGPP__)
+#if (defined(__linux__) && (PLATFORM_POSIX_VERSION > 1)) \
+ || (PLATFORM_POSIX_VERSION >= 200112L) \
+ || defined(__DJGPP__) \
+ || defined(__MSYS__)
# include <unistd.h> /* isatty */
# define IS_CONSOLE(stdStream) isatty(fileno(stdStream))
#elif defined(MSDOS) || defined(OS2) || defined(__CYGWIN__)
# include <io.h> /* _isatty */
# include <windows.h> /* DeviceIoControl, HANDLE, FSCTL_SET_SPARSE */
# include <stdio.h> /* FILE */
-static __inline int IS_CONSOLE(FILE* stdStream)
-{
+static __inline int IS_CONSOLE(FILE* stdStream) {
DWORD dummy;
return _isatty(_fileno(stdStream)) && GetConsoleMode((HANDLE)_get_osfhandle(_fileno(stdStream)), &dummy);
}
/******************************
-* OS-specific Includes
+* OS-specific IO behaviors
******************************/
#if defined(MSDOS) || defined(OS2) || defined(WIN32) || defined(_WIN32)
# include <fcntl.h> /* _O_BINARY */
# 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_BINARY_MODE(file) { int const 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)
#endif
+#ifndef ZSTD_START_SYMBOLLIST_FRAME
+# ifdef __linux__
+# define ZSTD_START_SYMBOLLIST_FRAME 2
+# elif defined __APPLE__
+# define ZSTD_START_SYMBOLLIST_FRAME 4
+# else
+# define ZSTD_START_SYMBOLLIST_FRAME 0
+# endif
+#endif
+
+
+#ifndef ZSTD_SETPRIORITY_SUPPORT
+ /* mandates presence of <sys/resource.h> and support for setpriority() : http://man7.org/linux/man-pages/man2/setpriority.2.html */
+# define ZSTD_SETPRIORITY_SUPPORT (PLATFORM_POSIX_VERSION >= 200112L)
+#endif
+
+
+#ifndef ZSTD_NANOSLEEP_SUPPORT
+ /* mandates support of nanosleep() within <time.h> : http://man7.org/linux/man-pages/man2/nanosleep.2.html */
+# if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 199309L)) \
+ || (PLATFORM_POSIX_VERSION >= 200112L)
+# define ZSTD_NANOSLEEP_SUPPORT 1
+# else
+# define ZSTD_NANOSLEEP_SUPPORT 0
+# endif
+#endif
+
+
#if defined (__cplusplus)
}
#endif
projects / ceph.git / blobdiff