C++ CFURLCreateWithFileSystemPath函數代碼示例

sqInt dir_Create(char *pathString, sqInt pathStringLength) {
	/* Create a new directory with the given path. By default, this
	   directory is created in the current directory. Use
	   a full path name such as "MyDisk:Working:New Folder" to
	   create folders elsewhere. */

    char cFileName[1001];

    if (pathStringLength >= 1000) {
        return false;
    }

    /* copy the file name into a null-terminated C string */
    sqFilenameFromString((char *) cFileName, (int) pathString, pathStringLength);
    
#if defined(__MWERKS__)
	{
        CFStringRef 	filePath,lastFilePath;
        CFURLRef 	    sillyThing,sillyThing2;
        FSRef	        parentFSRef;
        UniChar         buffer[1024];
        long            tokenLength;
		int err;
        
        filePath   = CFStringCreateWithBytes(kCFAllocatorDefault,(UInt8 *)cFileName,strlen(cFileName),gCurrentVMEncoding,false);
        if (filePath == nil) 
            return false;
        sillyThing = CFURLCreateWithFileSystemPath (kCFAllocatorDefault,filePath,kCFURLHFSPathStyle,true);
        CFRelease(filePath);

        lastFilePath = CFURLCopyLastPathComponent(sillyThing);
        tokenLength = CFStringGetLength(lastFilePath);
        if (tokenLength > 1024)
            return false;
        CFStringGetCharacters(lastFilePath,CFRangeMake(0,tokenLength),buffer);
        CFRelease(lastFilePath);

        sillyThing2 = CFURLCreateCopyDeletingLastPathComponent(kCFAllocatorDefault,sillyThing);

        err = CFURLGetFSRef(sillyThing2,&parentFSRef);
        CFRelease(sillyThing);
        CFRelease(sillyThing2);
        if (err == 0) {
            return false;  
        }
		err = FSCreateDirectoryUnicode(&parentFSRef,tokenLength,buffer,kFSCatInfoNone,NULL,NULL,NULL,NULL);
		
    	return (err == noErr ? 1 : 0);
    }
#else
    return mkdir(cFileName, 0777) == 0;
#endif
}

Boolean path_exists(CFTypeRef path) {
    if (CFGetTypeID(path) == CFStringGetTypeID()) {
        CFURLRef url = CFURLCreateWithFileSystemPath(NULL, path, kCFURLPOSIXPathStyle, true);
        Boolean result = CFURLResourceIsReachable(url, NULL);
        CFRelease(url);
        return result;
    } else if (CFGetTypeID(path) == CFURLGetTypeID()) {
        return CFURLResourceIsReachable(path, NULL);
    } else {
        return false;
    }
}

static bool urlFromPath(CFStringRef path, String& url)
{
    if (!path)
        return false;

    RetainPtr<CFURLRef> cfURL(AdoptCF, CFURLCreateWithFileSystemPath(0, path, kCFURLWindowsPathStyle, false));
    if (!cfURL)
        return false;

    url = String(CFURLGetString(cfURL.get()));
    return true;
}

//static
QString QFileSystemEngine::bundleName(const QFileSystemEntry &entry)
{
    QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(0, QCFString(entry.filePath()),
            kCFURLPOSIXPathStyle, true);
    if (QCFType<CFDictionaryRef> dict = CFBundleCopyInfoDictionaryForURL(url)) {
        if (CFTypeRef name = (CFTypeRef)CFDictionaryGetValue(dict, kCFBundleNameKey)) {
            if (CFGetTypeID(name) == CFStringGetTypeID())
                return QCFString::toQString((CFStringRef)name);
        }
    }
    return QString();
}

CFDataRef copyIconDataForPath(CFStringRef path) {
	CFDataRef data = NULL;

	//false is probably safest, and is harmless when the object really is a directory.
	CFURLRef URL = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, path, kCFURLPOSIXPathStyle, /*isDirectory*/ false);
	if (URL) {
		data = copyIconDataForURL(URL);
		CFRelease(URL);
	}

	return data;
}

wxMetafileRefData::wxMetafileRefData( const wxString& filename )
{
    Init();

    if ( !filename.empty() )
    {
        wxCFRef<CFMutableStringRef> cfMutableString(CFStringCreateMutableCopy(NULL, 0, wxCFStringRef(filename)));
        CFStringNormalize(cfMutableString,kCFStringNormalizationFormD);
        wxCFRef<CFURLRef> url(CFURLCreateWithFileSystemPath(kCFAllocatorDefault, cfMutableString , kCFURLPOSIXPathStyle, false));
        m_pdfDoc.reset(CGPDFDocumentCreateWithURL(url));
    }
}

void QStorageInfoPrivate::retrieveUrlProperties(bool initRootPath)
{
    static const void *rootPathKeys[] = { kCFURLVolumeURLKey };
    static const void *propertyKeys[] = {
        // kCFURLVolumeNameKey, // 10.7
        // kCFURLVolumeLocalizedNameKey, // 10.7
        kCFURLVolumeTotalCapacityKey,
        kCFURLVolumeAvailableCapacityKey,
        // kCFURLVolumeIsReadOnlyKey // 10.7
    };
    size_t size = (initRootPath ? sizeof(rootPathKeys) : sizeof(propertyKeys)) / sizeof(void*);
    QCFType<CFArrayRef> keys = CFArrayCreate(kCFAllocatorDefault,
                                             initRootPath ? rootPathKeys : propertyKeys,
                                             size,
                                             Q_NULLPTR);

    if (!keys)
        return;

    const QCFString cfPath = rootPath;
    if (initRootPath)
        rootPath.clear();

    QCFType<CFURLRef> url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault,
                                                          cfPath,
                                                          kCFURLPOSIXPathStyle,
                                                          true);
    if (!url)
        return;

    CFErrorRef error;
    QCFType<CFDictionaryRef> map = CFURLCopyResourcePropertiesForKeys(url, keys, &error);

    if (!map)
        return;

    if (initRootPath) {
        const CFURLRef rootUrl = (CFURLRef)CFDictionaryGetValue(map, kCFURLVolumeURLKey);
        if (!rootUrl)
            return;

        rootPath = QCFString(CFURLCopyFileSystemPath(rootUrl, kCFURLPOSIXPathStyle));
        valid = true;
        ready = true;

        return;
    }

    bytesTotal = CFDictionaryGetInt64(map, kCFURLVolumeTotalCapacityKey);
    bytesAvailable = CFDictionaryGetInt64(map, kCFURLVolumeAvailableCapacityKey);
    bytesFree = bytesAvailable;
}

// static
bool Sandbox::createSecurityToken(const QString& canonicalPath,
                                  bool isDirectory) {
    if (sDebug) {
        qDebug() << "createSecurityToken" << canonicalPath << isDirectory;
    }
    if (!enabled()) {
        return false;
    }
    QMutexLocker locker(&s_mutex);
    if (s_pSandboxPermissions == NULL) {
        return false;
    }

#ifdef Q_OS_MAC
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
    CFURLRef url = CFURLCreateWithFileSystemPath(
            kCFAllocatorDefault, QStringToCFString(canonicalPath),
            kCFURLPOSIXPathStyle, isDirectory);
    if (url) {
        CFErrorRef error = NULL;
        CFDataRef bookmark = CFURLCreateBookmarkData(
                kCFAllocatorDefault, url,
                kCFURLBookmarkCreationWithSecurityScope, nil, nil, &error);
        CFRelease(url);
        if (bookmark) {
            QByteArray bookmarkBA = QByteArray(
                    reinterpret_cast<const char*>(CFDataGetBytePtr(bookmark)),
                    CFDataGetLength(bookmark));

            QString bookmarkBase64 = QString(bookmarkBA.toBase64());

            s_pSandboxPermissions->set(keyForCanonicalPath(canonicalPath),
                                       bookmarkBase64);
            CFRelease(bookmark);
            return true;
        } else {
            if (sDebug) {
                qDebug() << "Failed to create security-scoped bookmark for" << canonicalPath;
                if (error != NULL) {
                    qDebug() << "Error:" << CFStringToQString(CFErrorCopyDescription(error));
                }
            }
        }
    } else {
        if (sDebug) {
            qDebug() << "Failed to create security-scoped bookmark URL for" << canonicalPath;
        }
    }
#endif
#endif
    return false;
}

uint32_t UtilCG::Texture::LoadTexture(const char *const aPath)
{
    CFStringRef Path = CFStringCreateWithCString(kCFAllocatorDefault, aPath, kCFStringEncodingASCII);
    CFURLRef Url = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, Path, kCFURLPOSIXPathStyle, false);
    CGImageSourceRef Source = CGImageSourceCreateWithURL(Url, NULL);
    
    CGImageRef pImage = CGImageSourceCreateImageAtIndex(Source, 0, NULL);
    if ( !pImage )
    {
        CFRelease(Url);
        CFRelease(Path);
        CFRelease(Source);
        return INVALID_HANDLE;
    }
    
    CGDataProviderRef pDataProvider = CGImageGetDataProvider(pImage);
    if ( pDataProvider )
    {
        size_t width = CGImageGetWidth(pImage);
        size_t height = CGImageGetHeight(pImage);
        //size_t bytesPerRow = CGImageGetBytesPerRow(pImage);
        //size_t bitsPerPixel = CGImageGetBitsPerPixel(pImage);
        //size_t bitsPerComponent = CGImageGetBitsPerComponent(pImage);
        CFDataRef DataRef = CGDataProviderCopyData(pDataProvider);
        const UInt8* pData = CFDataGetBytePtr(DataRef);
        
        uint32_t hTexID = 0;
        glGenTextures(1, &hTexID);
        glBindTexture(GL_TEXTURE_2D, hTexID);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
        glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLint)width, (GLint)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pData);
        glBindTexture(GL_TEXTURE_2D, 0);
        
        CFRelease(Url);
        CFRelease(Path);
        CFRelease(Source);
        CGImageRelease(pImage);
      //  CGDataProviderRelease(pDataProvider);
        return hTexID;
    }
    
    CFRelease(Url);
    CFRelease(Path);
    CFRelease(Source);
    CGImageRelease(pImage);
    CGDataProviderRelease(pDataProvider);
    
    return INVALID_HANDLE;
}

	void* AppleCMIODPSampleNewPlugIn(CFAllocatorRef allocator, CFUUIDRef requestedTypeUUID) 
	{
		if (not CFEqual(requestedTypeUUID, kCMIOHardwarePlugInTypeID))
			return 0;
		
		try
		{
			// Before going any further, make sure the SampleAssistant process is registerred with Mach's bootstrap service.  Normally, this would be done by having an appropriately
			// configured plist in /Library/LaunchDaemons, but if that is done then the process will be owned by root, thus complicating the debugging process.  Therefore, in the event that the
			// plist is missing (as would be the case for most debugging efforts) attempt to register the SampleAssistant now.  It will fail gracefully if allready registered.
			mach_port_t assistantServicePort;		
			name_t assistantServiceName = "com.apple.cmio.DPA.Sample";
			kern_return_t err = bootstrap_look_up(bootstrap_port, assistantServiceName, &assistantServicePort);
			if (BOOTSTRAP_SUCCESS != err)
			{
				// Create an URL to SampleAssistant that resides at "/Library/CoreMediaIO/Plug-Ins/DAL/Sample.plugin/Contents/Resources/SampleAssistant" 
				CACFURL assistantURL(CFURLCreateWithFileSystemPath(NULL, CFSTR("/Library/CoreMediaIO/Plug-Ins/DAL/Sample.plugin/Contents/Resources/SampleAssistant"), kCFURLPOSIXPathStyle, false));
				ThrowIf(not assistantURL.IsValid(), CAException(-1), "AppleCMIODPSampleNewPlugIn: unable to create URL for the SampleAssistant");

				// Get the maximum size of the of the file system representation of the SampleAssistant's absolute path
				CFIndex length = CFStringGetMaximumSizeOfFileSystemRepresentation(CACFString(CFURLCopyFileSystemPath(CACFURL(CFURLCopyAbsoluteURL(assistantURL.GetCFObject())).GetCFObject(), kCFURLPOSIXPathStyle)).GetCFString());

				// Get the file system representation
				CAAutoFree<char> path(length);
				(void) CFURLGetFileSystemRepresentation(assistantURL.GetCFObject(), true, reinterpret_cast<UInt8*>(path.get()), length);

				mach_port_t assistantServerPort;
				err = bootstrap_create_server(bootstrap_port, path, getuid(), true, &assistantServerPort);
				ThrowIf(BOOTSTRAP_SUCCESS != err, CAException(err), "AppleCMIODPSampleNewPlugIn: couldn't create server");
				
				err = bootstrap_check_in(assistantServerPort, assistantServiceName, &assistantServicePort);

				// The server port is no longer needed so get rid of it
				(void) mach_port_deallocate(mach_task_self(), assistantServerPort);

				// Make sure the call to bootstrap_create_service() succeeded
				ThrowIf(BOOTSTRAP_SUCCESS != err, CAException(err), "AppleCMIODPSampleNewPlugIn: couldn't create SampleAssistant service port");
			}

			// The service port is not longer needed so get rid of it
			(void) mach_port_deallocate(mach_task_self(), assistantServicePort);


			CMIO::DP::Sample::PlugIn* plugIn = new CMIO::DP::Sample::PlugIn(requestedTypeUUID);
			plugIn->Retain();
			return plugIn->GetInterface();
		}
		catch (...)
		{
			return NULL;
		}
	}

bool QMacPrintEngine::begin(QPaintDevice *dev)
{
    Q_D(QMacPrintEngine);

    if (d->state == QPrinter::Idle && d->session == 0) // Need to reinitialize
        d->initialize();

    d->paintEngine->state = state;
    d->paintEngine->begin(dev);
    Q_ASSERT_X(d->state == QPrinter::Idle, "QMacPrintEngine", "printer already active");

    if (PMSessionValidatePrintSettings(d->session, d->settings, kPMDontWantBoolean) != noErr
        || PMSessionValidatePageFormat(d->session, d->format, kPMDontWantBoolean) != noErr) {
        d->state = QPrinter::Error;
        return false;
    }

    if (!d->outputFilename.isEmpty()) {
        QCFType<CFURLRef> outFile = CFURLCreateWithFileSystemPath(kCFAllocatorSystemDefault,
                                                                  QCFString(d->outputFilename),
                                                                  kCFURLPOSIXPathStyle,
                                                                  false);
        if (PMSessionSetDestination(d->session, d->settings, kPMDestinationFile,
                                    kPMDocumentFormatPDF, outFile) != noErr) {
            qWarning("QMacPrintEngine::begin: Problem setting file [%s]", d->outputFilename.toUtf8().constData());
            return false;
        }
    }
    OSStatus status = noErr;
#if (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_4)
    if (QSysInfo::MacintoshVersion >= QSysInfo::MV_10_4) {
        status = d->shouldSuppressStatus() ? PMSessionBeginCGDocumentNoDialog(d->session, d->settings, d->format)
                                           : PMSessionBeginCGDocument(d->session, d->settings, d->format);
    } else
#endif
    {
#ifndef Q_OS_MAC64
        status = d->shouldSuppressStatus() ? PMSessionBeginDocumentNoDialog(d->session, d->settings, d->format)
                                           : PMSessionBeginDocument(d->session, d->settings, d->format);
#endif
    }
    if (status != noErr) {
        d->state = QPrinter::Error;
        return false;
    }

    d->state = QPrinter::Active;
    setActive(true);
    d->newPage_helper();
    return true;
}

bool PluginPackage::load()
{
    if (m_isLoaded) {
        m_loadCount++;
        return true;
    }

    WTF::RetainPtr<CFStringRef> path(AdoptCF, m_path.createCFString());
    WTF::RetainPtr<CFURLRef> url(AdoptCF, CFURLCreateWithFileSystemPath(kCFAllocatorDefault, path.get(),
                                                                        kCFURLPOSIXPathStyle, false));
    m_module = CFBundleCreate(NULL, url.get());
    if (!m_module || !CFBundleLoadExecutable(m_module)) {
        LOG(Plugins, "%s not loaded", m_path.utf8().data());
        return false;
    }

    m_isLoaded = true;

    NP_GetEntryPointsFuncPtr NP_GetEntryPoints = 0;
    NP_InitializeFuncPtr NP_Initialize;
    NPError npErr;

    NP_Initialize = (NP_InitializeFuncPtr)CFBundleGetFunctionPointerForName(m_module, CFSTR("NP_Initialize"));
    NP_GetEntryPoints = (NP_GetEntryPointsFuncPtr)CFBundleGetFunctionPointerForName(m_module, CFSTR("NP_GetEntryPoints"));
    m_NPP_Shutdown = (NPP_ShutdownProcPtr)CFBundleGetFunctionPointerForName(m_module, CFSTR("NP_Shutdown"));

    if (!NP_Initialize || !NP_GetEntryPoints || !m_NPP_Shutdown)
        goto abort;

    memset(&m_pluginFuncs, 0, sizeof(m_pluginFuncs));
    m_pluginFuncs.size = sizeof(m_pluginFuncs);

    initializeBrowserFuncs();

    npErr = NP_Initialize(&m_browserFuncs);
    LOG_NPERROR(npErr);
    if (npErr != NPERR_NO_ERROR)
        goto abort;

    npErr = NP_GetEntryPoints(&m_pluginFuncs);
    LOG_NPERROR(npErr);
    if (npErr != NPERR_NO_ERROR)
        goto abort;

    m_loadCount++;
    return true;

abort:
    unloadWithoutShutdown();
    return false;
}

//-----------------------------------------------------------------------------
CFURLEnumeratorRef CreateDirectoryEnumerator(CFStringRef dirPath)
{
    CFURLRef           dirUrl  = NULL;
    CFURLEnumeratorRef dirEnum = NULL;

    dirUrl = CFURLCreateWithFileSystemPath(kCFAllocatorDefault, dirPath, kCFURLPOSIXPathStyle, true);
    if (dirUrl ) {
        dirEnum = CFURLEnumeratorCreateForDirectoryURL(kCFAllocatorDefault, dirUrl, kCFURLEnumeratorDefaultBehavior, NULL);
    }
    if (dirUrl) {
        CFRelease(dirUrl);
    }
    return dirEnum;
}

/*
** Returns a CFBundleRef if the FSSpec refers to a Mac OS X bundle directory.
** The caller is responsible for calling CFRelease() to deallocate.
*/
static CFBundleRef getPluginBundle(const char* path)
{
    CFBundleRef bundle = NULL;
    CFStringRef pathRef = CFStringCreateWithCString(NULL, path, kCFStringEncodingUTF8);
    if (pathRef) {
        CFURLRef bundleURL = CFURLCreateWithFileSystemPath(NULL, pathRef, kCFURLPOSIXPathStyle, true);
        if (bundleURL != NULL) {
            bundle = CFBundleCreate(NULL, bundleURL);
            CFRelease(bundleURL);
        }
        CFRelease(pathRef);
    }
    return bundle;
}

CFURLRef copy_device_app_url(AMDeviceRef device, CFStringRef identifier) {
    CFDictionaryRef result;
    assert(AMDeviceLookupApplications(device, 0, &result) == 0);

    CFDictionaryRef app_dict = CFDictionaryGetValue(result, identifier);
    assert(app_dict != NULL);

    CFStringRef app_path = CFDictionaryGetValue(app_dict, CFSTR("Path"));
    assert(app_path != NULL);
    
    CFURLRef url = CFURLCreateWithFileSystemPath(NULL, app_path, kCFURLPOSIXPathStyle, true);
    CFRelease(result);
    return url;
}