C++ CFURLCreateFromFileSystemRepresentation函數代碼示例

CFArrayRef CFCopySearchPathForDirectoriesInDomains(CFSearchPathDirectory directory, CFSearchPathDomainMask domainMask, Boolean expandTilde) {
    CFMutableArrayRef array;
    CFSearchPathEnumerationState state;
    CFIndex homeLen = -1;
    char cPath[CFMaxPathSize], home[CFMaxPathSize];

    array = CFArrayCreateMutable(kCFAllocatorSystemDefault, 0, &kCFTypeArrayCallBacks);
    state = __CFStartSearchPathEnumeration(directory, domainMask);
    while ((state = __CFGetNextSearchPathEnumeration(state, (uint8_t *)cPath, sizeof(cPath)))) {
	CFURLRef url = NULL;
	if (expandTilde && (cPath[0] == '~')) {
	    if (homeLen < 0) {
		CFURLRef homeURL = CFCopyHomeDirectoryURLForUser(NULL);
		if (homeURL) {
		    CFURLGetFileSystemRepresentation(homeURL, true, (uint8_t *)home, CFMaxPathSize);
		    homeLen = strlen(home);
		    CFRelease(homeURL);
		}
	    }
            if (homeLen + strlen(cPath) < CFMaxPathSize) {
		home[homeLen] = '\0';
		strlcat(home, &cPath[1], sizeof(home));
		url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)home, strlen(home), true);
	    }
	} else {
	    url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)cPath, strlen(cPath), true);
	}
	if (url) {
	    CFArrayAppendValue(array, url);
	    CFRelease(url);
	}
    }
    return array;
}

// Set the fallBackToHome parameter to true if we should fall back to the HOME environment variable if all else fails. Otherwise return NULL.
static CFURLRef _CFCopyHomeDirURLForUser(const char *username, bool fallBackToHome) {
    const char *fixedHomePath = issetugid() ? NULL : __CFgetenv("CFFIXED_USER_HOME");
    const char *homePath = NULL;
    
    // Calculate the home directory we will use
    // First try CFFIXED_USER_HOME (only if not setugid), then fall back to the upwd, then fall back to HOME environment variable
    CFURLRef home = NULL;
    if (!issetugid() && fixedHomePath) home = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)fixedHomePath, strlen(fixedHomePath), true);
    if (!home) {
        struct passwd *upwd = NULL;
        if (username) {
            upwd = getpwnam(username);
        } else {
            uid_t euid;
            __CFGetUGIDs(&euid, NULL);
            upwd = getpwuid(euid ?: getuid());
        }
        if (upwd && upwd->pw_dir) {
            home = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)upwd->pw_dir, strlen(upwd->pw_dir), true);
        }
    }
    if (fallBackToHome && !home) homePath = __CFgetenv("HOME");
    if (fallBackToHome && !home && homePath) home = CFURLCreateFromFileSystemRepresentation(kCFAllocatorSystemDefault, (uint8_t *)homePath, strlen(homePath), true);
    
    return home;
}

int main (int argc, const char * argv[]) {
    const char *inputFileName = NULL;
    char *outputFileName = NULL;
    CFURLRef inURL = NULL;
    
    if(argc != 2){
		fprintf(stderr, "Usage: %s [inputfile] \n", argv[0]);
        return 1;
    }

    inputFileName = argv[1];
    fprintf(stdout, "Beginning Document \"%s\"\n", inputFileName);

    inURL = CFURLCreateFromFileSystemRepresentation(NULL, inputFileName, 
				strlen(inputFileName), false);
    if(!inURL){
		fprintf(stderr, "Couldn't create URL for input file!\n");
		return 1;
    }
    
    dumpPageStreams(inURL, stdout);
    
    CFRelease(inURL);
    
    return 0;
}

bool ofxAudioUnitFilePlayer::setFile(const std::string &filePath) {
	CFURLRef fileURL;
	fileURL = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
	                                                  (const UInt8 *)filePath.c_str(),
	                                                  filePath.length(),
	                                                  NULL);
	
	if(_fileID[0]) {
		AudioFileClose(_fileID[0]);
		_fileID[0] = NULL;
	}
	
	OSStatus s = AudioFileOpenURL(fileURL, kAudioFileReadPermission, 0, _fileID);
	CFRelease(fileURL);
	
	_primed = false;
	
	if(s != noErr) {
		cout << "Error " << s << " while opening file at " << filePath << endl;
		return false;
	} else {
		// setting the file ID now since it seems to have some overhead.
		// Doing it now ensures you'll get sound pretty much instantly after
		// calling play() (subsequent calls don't have the overhead)
		OFXAU_RET_BOOL(AudioUnitSetProperty(*_unit,
											kAudioUnitProperty_ScheduledFileIDs,
											kAudioUnitScope_Global,
											0,
											_fileID,
											sizeof(_fileID)),
					   "setting file player's file ID");
	}
}

//-----------------------------------------------------------------------------
int C700::CreatePGDataDic(CFDictionaryRef *data, int pgnum)
{
    CFMutableDictionaryRef dict = CFDictionaryCreateMutable	(NULL, 0,
                                  &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);
    const InstParams	*vpSet = mEfx->GetVP();

    if (vpSet[pgnum].loop) {
        vpSet[pgnum].brr.data[vpSet[pgnum].brr.size - 9] |= 2;
    }
    else {
        vpSet[pgnum].brr.data[vpSet[pgnum].brr.size - 9] &= ~2;
    }
    CFDataRef	brrdata = CFDataCreate(NULL, vpSet[pgnum].brr.data, vpSet[pgnum].brr.size);
    CFDictionarySetValue(dict, kSaveKey_brrdata, brrdata);
    CFRelease(brrdata);

    AddNumToDictionary(dict, kSaveKey_looppoint, vpSet[pgnum].lp);
    CFNumberRef	num = CFNumberCreate(NULL, kCFNumberDoubleType, &vpSet[pgnum].rate);
    CFDictionarySetValue(dict, kSaveKey_samplerate, num);
    CFRelease(num);
    AddNumToDictionary(dict, kSaveKey_basekey, vpSet[pgnum].basekey);
    AddNumToDictionary(dict, kSaveKey_lowkey, vpSet[pgnum].lowkey);
    AddNumToDictionary(dict, kSaveKey_highkey, vpSet[pgnum].highkey);
    AddNumToDictionary(dict, kSaveKey_ar, vpSet[pgnum].ar);
    AddNumToDictionary(dict, kSaveKey_dr, vpSet[pgnum].dr);
    AddNumToDictionary(dict, kSaveKey_sl, vpSet[pgnum].sl);
    AddNumToDictionary(dict, kSaveKey_sr, vpSet[pgnum].sr);
    AddBooleanToDictionary(dict, kSaveKey_SustainMode, vpSet[pgnum].sustainMode);
    AddNumToDictionary(dict, kSaveKey_volL, vpSet[pgnum].volL);
    AddNumToDictionary(dict, kSaveKey_volR, vpSet[pgnum].volR);
    AddBooleanToDictionary(dict, kSaveKey_echo, vpSet[pgnum].echo);
    AddNumToDictionary(dict, kSaveKey_bank, vpSet[pgnum].bank);
    AddBooleanToDictionary(dict, kSaveKey_MonoMode, vpSet[pgnum].monoMode);
    AddBooleanToDictionary(dict, kSaveKey_PortamentoOn, vpSet[pgnum].portamentoOn);
    AddNumToDictionary(dict, kSaveKey_PortamentoRate, vpSet[pgnum].portamentoRate);
    AddNumToDictionary(dict, kSaveKey_NoteOnPriority, vpSet[pgnum].noteOnPriority);
    AddNumToDictionary(dict, kSaveKey_ReleasePriority, vpSet[pgnum].releasePriority);

    //元波形情報
    AddBooleanToDictionary(dict, kSaveKey_IsEmphasized, vpSet[pgnum].isEmphasized);
    if ( vpSet[pgnum].sourceFile[0] ) {
        CFURLRef	url =
            CFURLCreateFromFileSystemRepresentation(NULL, (UInt8*)vpSet[pgnum].sourceFile,
                    strlen(vpSet[pgnum].sourceFile), false);
        CFDataRef urlData = CFURLCreateData( NULL, url, kCFStringEncodingUTF8, false );
        CFDictionarySetValue(dict, kSaveKey_SourceFile, urlData);
        CFRelease(urlData);
        CFRelease(url);
    }

    //プログラム名
    if (vpSet[pgnum].pgname[0] != 0) {
        CFStringRef	str = CFStringCreateWithCString(NULL, vpSet[pgnum].pgname, kCFStringEncodingUTF8);
        CFDictionarySetValue(dict, kSaveKey_ProgName, str);
        CFRelease(str);
    }

    *data = dict;
    return 0;
}

MDSAttrParser::MDSAttrParser(
	const char *bundlePath,
	MDSSession &dl,
	CSSM_DB_HANDLE objectHand,
	CSSM_DB_HANDLE cdsaDirHand) :
		mBundle(NULL),
		mPath(NULL),
		mDl(dl),
		mObjectHand(objectHand),
		mCdsaDirHand(cdsaDirHand),
		mGuid(NULL),
		mDefaults(NULL)
{
	/* Only task here is to cook up a CFBundle for the specified path */
	unsigned pathLen = strlen(bundlePath);
	CFURLRef url = CFURLCreateFromFileSystemRepresentation(NULL,
		(unsigned char *)bundlePath,
		pathLen,
		false);
	if(url == NULL) {
		Syslog::alert("CFURLCreateFromFileSystemRepresentation(%s) failure", mPath);
		CssmError::throwMe(CSSMERR_DL_INVALID_DB_NAME);
	}
	
	/* FIXME - this leaks 28 bytes each time thru, even though we CFRelease the
	 * mBundle in out destructor. I think this is a CF leak. */
	mBundle = CFBundleCreate(NULL, url);
	CFRelease(url);
	if(mBundle == NULL) {
		Syslog::alert("CFBundleCreate(%s) failure", mPath);
		CssmError::throwMe(CSSMERR_DL_INVALID_DB_NAME);
	}
	mPath = new char[pathLen + 1];
	strcpy(mPath, bundlePath);
}

/* do a [NSString stringByDeletingPathExtension] equivalent */
CFStringRef impExpImportDeleteExtension(
	CFStringRef			fileStr)
{
	CFDataRef fileStrData = CFStringCreateExternalRepresentation(NULL, fileStr,
		kCFStringEncodingUTF8, 0);
	if(fileStrData == NULL) {
		return NULL;
	}

	CFURLRef urlRef = CFURLCreateFromFileSystemRepresentation(NULL,
		CFDataGetBytePtr(fileStrData), CFDataGetLength(fileStrData), false);
	if(urlRef == NULL) {
		CFRelease(fileStrData);
		return NULL;
	}
	CFURLRef rtnUrl = CFURLCreateCopyDeletingPathExtension(NULL, urlRef);
	CFStringRef rtnStr = NULL;
	CFRelease(urlRef);
	if(rtnUrl) {
		rtnStr = CFURLGetString(rtnUrl);
		CFRetain(rtnStr);
		CFRelease(rtnUrl);
	}
	CFRelease(fileStrData);
	return rtnStr;
}

int diskarb_unmount( const char * dir, int flags )
{
    int status;

    status = -1;

    if ( dir )
    {
        DASessionRef session;

        session = DASessionCreate( kCFAllocatorDefault );

        if ( session )
        {
            CFURLRef path;

            path = CFURLCreateFromFileSystemRepresentation( kCFAllocatorDefault, ( void * ) dir, strlen( dir ), TRUE );

            if ( path )
            {
                DADiskRef disk;

                disk = DADiskCreateFromVolumePath( kCFAllocatorDefault, session, path );

                if ( disk )
                {
                    DADiskUnmountOptions options;

                    options = kDADiskUnmountOptionDefault;

                    if ( ( flags & MNT_FORCE ) )
                    {
                       options |= kDADiskUnmountOptionForce;
                    }

                    DASessionScheduleWithRunLoop( session, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode );

                    DADiskUnmount( disk, options, __diskarb_unmount, &status );
 
                    if ( status == -1 )
                    {
                        CFRunLoopRun( );
                    }

                    status = status ? -1 : 0;

                    DASessionUnscheduleFromRunLoop( session, CFRunLoopGetCurrent( ), kCFRunLoopDefaultMode );

                    CFRelease( disk );
                }

                CFRelease( path );
            }

            CFRelease( session );
        }
    }

    return status;
}

CFPropertyListRef Resources::getPropertyList(const char* filename)
{
    CFDataRef xmlCFDataRef;
    CFStringRef error;
    char cerror[10240];
    CFPropertyListRef myCFPropertyListRef = NULL;
    Boolean readOK;
    char  filePathBuf[PATH_MAX];
    CFStringRef filePath = this->getResourcePath(filename);
    CFStringGetCString(filePath, filePathBuf, sizeof(filePathBuf), kCFStringEncodingUTF8);
    CFURLRef fileURL = CFURLCreateFromFileSystemRepresentation (kCFAllocatorDefault, (const unsigned char*)filePathBuf, strlen (filePathBuf), false);
    if (fileURL!=NULL)  {
        readOK = CFURLCreateDataAndPropertiesFromResource( kCFAllocatorDefault, fileURL, &xmlCFDataRef, NULL, NULL, NULL);
        if (readOK)
        {
            myCFPropertyListRef = CFPropertyListCreateFromXMLData(kCFAllocatorDefault, xmlCFDataRef, kCFPropertyListImmutable, &error);
            if (error != NULL){
                CFStringGetCString(error, cerror, sizeof(cerror), kCFStringEncodingUTF8);
                scprintf("getPropertyList error: %s\n", cerror);
            }
            CFRelease(xmlCFDataRef);
        }
        else{
            scprintf("Couldn't read Plist File %s\n", filePathBuf);
        }
    }
    return myCFPropertyListRef;
}

/*  Examines a directory, treating it as a bundle, and determines whether it has an executable.
*   Examines the executable as a regular file to determine which architectures it matches.
*   Prints out the results.
*/
static void examine_bundle(const uint8_t *bundle_path) {
    CFURLRef bundleURL = CFURLCreateFromFileSystemRepresentation(NULL, bundle_path, strlen((const char *)bundle_path), true), executableURL = NULL;
    CFBundleRef bundle = NULL;       
    uint8_t path[PATH_MAX];
    struct stat statBuf;
    if (bundleURL && (bundle = CFBundleCreate(NULL, bundleURL))) {
        // Try to obtain a path to an executable within the bundle.
        executableURL = CFBundleCopyExecutableURL(bundle);
        if (executableURL && CFURLGetFileSystemRepresentation(executableURL, true, path, PATH_MAX) && stat((const char *)path, &statBuf) == 0) {
            // Make sure it is a regular file, and if so examine it as a regular file.
            if ((statBuf.st_mode & S_IFMT) == S_IFREG) {
                examine_file(path);
            } else {
                printf("Unsupported file type for file %s.\n", path);
            }
        } else {
            printf("No executable located for %s.\n", bundle_path);
        }
    } else {
        printf("Cannot read %s.\n", bundle_path);
    }
    if (executableURL) CFRelease(executableURL);
    if (bundle) CFRelease(bundle);
    if (bundleURL) CFRelease(bundleURL);
}

QImage FileImageProvider::image(const QFileInfo &info, const QSize size) const
{
    QImage result;
#ifdef Q_OS_MAC
    QString path = info.absoluteFilePath();
    CGSize s;
    s.width = size.width();
    s.height = size.height();
    CFURLRef url = CFURLCreateFromFileSystemRepresentation(kCFAllocatorDefault,
                                                                (const UInt8*)path.toUtf8().data(),
                                                                path.length(),
                                                                true);
    if (url) {
        CGImageRef image = QLThumbnailImageCreate(kCFAllocatorDefault, url, s, 0);
        if (image) {
//            result = QPixmap::fromMacCGImageRef(image).toImage();
//            CFRelease(image);
        }

        CFRelease(url);
    }
#else
#endif
    if (result.isNull())
        result = icon(info).pixmap(size).toImage();

    return result;
}

static CFBundleRef _CFXBundleCreateFromImageName (CFAllocatorRef allocator, const char* image_name)
{
    CFURLRef myBundleExecutableURL = CFURLCreateFromFileSystemRepresentation (allocator, (const unsigned char*)image_name, strlen (image_name), false);
    if (myBundleExecutableURL == 0)
        return 0;

    CFURLRef myBundleContentsMacOSURL = CFURLCreateCopyDeletingLastPathComponent (allocator, myBundleExecutableURL); // Delete Versions/Current/Executable
    CFRelease (myBundleExecutableURL);
    if (myBundleContentsMacOSURL == 0)
        return 0;

    CFURLRef myBundleContentsURL = CFURLCreateCopyDeletingLastPathComponent (allocator, myBundleContentsMacOSURL); // Delete Current
    CFRelease (myBundleContentsMacOSURL);
    if (myBundleContentsURL == 0)
        return 0;

    CFURLRef theBundleURL = CFURLCreateCopyDeletingLastPathComponent (allocator, myBundleContentsURL); // Delete Versions
    CFRelease (myBundleContentsURL);
    if (theBundleURL == 0)
        return 0;

    CFBundleRef result = CFBundleCreate (allocator, theBundleURL);
    CFRelease (theBundleURL);

    return result;
}

bool ImageIODecoder::readHeader()
{
    CFURLRef         imageURLRef;
    CGImageSourceRef sourceRef;
    // diciu, if ReadHeader is called twice in a row make sure to release the previously allocated imageRef
    if (imageRef != NULL)
        CGImageRelease(imageRef);
    imageRef = NULL;

    imageURLRef = CFURLCreateFromFileSystemRepresentation( NULL,
        (const UInt8*)m_filename.c_str(), m_filename.size(), false );

    sourceRef = CGImageSourceCreateWithURL( imageURLRef, NULL );
    CFRelease( imageURLRef );
    if ( !sourceRef )
        return false;

    imageRef = CGImageSourceCreateImageAtIndex( sourceRef, 0, NULL );
    CFRelease( sourceRef );
    if( !imageRef )
        return false;

    m_width = CGImageGetWidth( imageRef );
    m_height = CGImageGetHeight( imageRef );

    CGColorSpaceRef colorSpace = CGImageGetColorSpace( imageRef );
    if( !colorSpace )
        return false;

    m_type = CGColorSpaceGetNumberOfComponents( colorSpace ) > 1 ? CV_8UC3 : CV_8UC1;

    return true;
}

static CFURLRef _CFCopyHomeDirURLForUser(struct passwd *upwd) {
    CFURLRef home = NULL;
    if (upwd && upwd->pw_dir) {
        home = CFURLCreateFromFileSystemRepresentation(NULL, upwd->pw_dir, strlen(upwd->pw_dir), true);
    }
    return home;
}

char* getBundleVersion(const char* bundlePath) {
    CFURLRef bundlePackageURL = NULL;
    bundlePackageURL = CFURLCreateFromFileSystemRepresentation(
        kCFAllocatorDefault,
        (const UInt8*)bundlePath,
        strlen(bundlePath),
        true);

    assert(bundlePackageURL);

    CFBundleRef bundle = NULL;
    bundle = CFBundleCreate(kCFAllocatorDefault, bundlePackageURL);
    assert(bundle);

    CFStringRef versionStr = (CFStringRef)CFBundleGetValueForInfoDictionaryKey(
        bundle, kCFBundleVersionKey);

    int length = CFStringGetLength(versionStr)+1;
    char* ret = (char*)malloc(length);

    Boolean v = CFStringGetCString(versionStr, ret, length, kCFStringEncodingASCII);
    assert(v);

    CFRelease(bundle);
    CFRelease(bundlePackageURL);

    return ret;
}