ObjFW  Check-in [f050580b33]

@property (class, readonly, nonatomic) size_t numberOfCPUs;
@property (class, readonly, nonatomic) OFString *ObjFWVersion;
@property (class, readonly, nonatomic) unsigned short ObjFWVersionMajor;
@property (class, readonly, nonatomic) unsigned short ObjFWVersionMinor;
@property (class, readonly, nullable, nonatomic) OFString *operatingSystemName;
@property (class, readonly, nullable, nonatomic)
    OFString *operatingSystemVersion;
#if defined(OF_WINDOWS) || defined(DOXYGEN)
@property (class, readonly, nullable, nonatomic) OFString *wineVersion;
#endif
@property (class, readonly, nullable, nonatomic) OFIRI *userDataIRI;
@property (class, readonly, nullable, nonatomic) OFIRI *userConfigIRI;
@property (class, readonly, nullable, nonatomic) OFIRI *temporaryDirectoryIRI;
@property (class, readonly, nullable, nonatomic) OFString *CPUVendor;
@property (class, readonly, nullable, nonatomic) OFString *CPUModel;
# if defined(OF_AMD64) || defined(OF_X86) || defined(DOXYGEN)
@property (class, readonly, nonatomic) bool supportsMMX;

/**
 * @brief Returns the version of the operating system the application is
 *	  running on.
 *
 * @return The version of the operating system the application is running on
 */
+ (nullable OFString *)operatingSystemVersion;

#if defined(OF_WINDOWS) || defined(DOXYGEN)
/**
 * @brief Returns the version of Wine the application is running on, or `nil`
 *	  if not running on Wine (e.g. on Windows natively).
 *
 * @note This is only available on Windows.
 *
 * @return The version of Wine the application is running on, or `nil` if not
 *	   running on Wine (e.g. on Windows natively)
 */
+ (nullable OFString *)wineVersion;
#endif

/**
 * @brief Returns the path where user data for the application can be stored.
 *
 * On UNIX systems, this adheres to the XDG Base Directory specification.@n
 * On macOS and iOS, it uses the `NSApplicationSupportDirectory` directory.@n
 * On Windows, it uses the `APPDATA` environment variable.@n

# endif
#endif

static size_t pageSize = 4096;
static size_t numberOfCPUs = 1;
static OFString *operatingSystemName = nil;
static OFString *operatingSystemVersion = nil;

#ifdef OF_WINDOWS
static const char *(*wine_get_version)(void);
#endif

static void
initOperatingSystemName(void)
{
#if defined(OF_IOS)
	operatingSystemName = @"iOS";
#elif defined(OF_MACOS)

	 * Required as cpuid can return SSE support while the OS has not
	 * enabled it.
	 */
	SSETest();
#endif

#if defined(OF_WINDOWS)
	HANDLE module;

	SYSTEM_INFO si;
	GetSystemInfo(&si);
	pageSize = si.dwPageSize;
	numberOfCPUs = si.dwNumberOfProcessors;

	if ((module = GetModuleHandle("ntdll.dll")) != NULL)
		wine_get_version = (const char *(*)(void))
		    GetProcAddress(module, "wine_get_version");
#elif defined(OF_QNX)
	if ((tmp = sysconf(_SC_PAGESIZE)) > 0)
		pageSize = tmp;
	numberOfCPUs = _syspage_ptr->num_cpu;
#else
# if defined(HAVE_SYSCONF) && defined(_SC_PAGESIZE)
	if ((tmp = sysconf(_SC_PAGESIZE)) > 0)

+ (OFString *)operatingSystemVersion
{
	static OFOnceControl onceControl = OFOnceControlInitValue;
	OFOnce(&onceControl, initOperatingSystemVersion);

	return operatingSystemVersion;
}

#ifdef OF_WINDOWS
+ (OFString *)wineVersion
{
	if (wine_get_version != NULL)
		return [OFString stringWithCString: wine_get_version()
					  encoding: [OFLocale encoding]];

	return nil;
}
#endif

+ (OFIRI *)userDataIRI
{
#ifdef OF_HAVE_FILES
# if defined(OF_MACOS) || defined(OF_IOS)
	char pathC[PATH_MAX];
	OFMutableString *path;

	ADD(name, [OFNumber numberWithBool: value]);

	ADD(@"ObjFW version", [OFSystemInfo ObjFWVersion])
	ADD_UINT(@"ObjFW version major", [OFSystemInfo ObjFWVersionMajor])
	ADD_UINT(@"ObjFW version minor", [OFSystemInfo ObjFWVersionMinor])
	ADD(@"Operating system name", [OFSystemInfo operatingSystemName]);
	ADD(@"Operating system version", [OFSystemInfo operatingSystemVersion]);
#ifdef OF_WINDOWS
	ADD(@"Wine version", [OFSystemInfo wineVersion]);
#endif
	ADD_ULONGLONG(@"Page size", [OFSystemInfo pageSize]);
	ADD_ULONGLONG(@"Number of CPUs", [OFSystemInfo numberOfCPUs]);
	ADD(@"User config IRI", [OFSystemInfo userConfigIRI].string);
	ADD(@"User data IRI", [OFSystemInfo userDataIRI].string);
	ADD(@"Temporary directory IRI",
	    [OFSystemInfo temporaryDirectoryIRI].string);
	ADD(@"CPU vendor", [OFSystemInfo CPUVendor]);