C++ BlockMoveData函數代碼示例

pascal	OSErr	ResolveFileIDRef(ConstStr255Param volName,
								 short vRefNum,
								 long fileID,
								 long *parID,
								 StringPtr fileName)
{
	HParamBlockRec pb;
	OSErr error;
	Str255 tempStr;
	
	tempStr[0] = 0;
	if ( volName != NULL )
	{
		BlockMoveData(volName, tempStr, volName[0] + 1);
	}
	pb.fidParam.ioNamePtr = (StringPtr)tempStr;
	pb.fidParam.ioVRefNum = vRefNum;
	pb.fidParam.ioFileID = fileID;
	error = PBResolveFileIDRefSync(&pb);
	if ( error == noErr )
	{
		*parID = pb.fidParam.ioSrcDirID;
		if ( fileName != NULL )
		{
			BlockMoveData(tempStr, fileName, tempStr[0] + 1);
		}
	}
	return ( error );
}

UInt32 RingBuffer::Reallocate(UInt32 inBufferByteSize) {
    Byte *bptr = NULL;
    UInt32 data_size = 0;

    // can't decrease the size at the moment
    if (inBufferByteSize > mBSize) {
        bptr = new Byte[inBufferByteSize * 2];
        data_size = GetDataAvailable();
        if (mNeedsWrapping) {
            UInt32 headBytes = mBSize - mBStart;
            BlockMoveData(mBuffer + mBStart, bptr, headBytes);
            BlockMoveData(mBuffer, bptr + headBytes, mBEnd);
            mNeedsWrapping = false;
        } else {
            BlockMoveData(mBuffer + mBStart, bptr, data_size);
        }
        mBEnd = data_size;
        mBStart = 0;

        delete[] mBuffer;
        mBuffer = bptr;
        mBSize = inBufferByteSize;
    }

    return mBSize;
}

void LoadImportPLUG( MADLibrary		*inMADDriver, short	No, FSSpec	*theSpec)
{
	Handle		theRes;
	short		fileID;
	Str255		tStr;

	
	inMADDriver->ThePlug[ No].file = *theSpec;
	
	{
		Boolean		targetIsFolder, wasAliased;
		
		ResolveAliasFile( &inMADDriver->ThePlug[ No].file, true, &targetIsFolder, &wasAliased);
	}

	pStrCpy( inMADDriver->ThePlug[ No].filename, inMADDriver->ThePlug[ No].file.name);
	
	fileID = FSpOpenResFile( theSpec, fsCurPerm);
	
	/** CODE du Plug-in **/
	
	GetIndString( tStr, 1000, 1);
	BlockMoveData( tStr + 1, &inMADDriver->ThePlug[ No].type, 4);
	inMADDriver->ThePlug[ No].type[ 4] = 0;
	
	GetIndString( tStr, 1000, 2);
	BlockMoveData( tStr + 1, &inMADDriver->ThePlug[ No].mode, 4);
	
	GetIndString( inMADDriver->ThePlug[ No].MenuName, 1000, 3);
	GetIndString( inMADDriver->ThePlug[ No].AuthorString, 1000, 4);
	
	CloseResFile( fileID);
}

OSErr GetFullPath( const FSSpec* spec, Str255 fullPath)
{
	CInfoPBRec		myPB;
	Str255		dirName;
	OSErr		myErr;
	 
	fullPath[0] = '\0';
	BlockMoveData(spec->name, fullPath, spec->name[spec->name[0]]+1 );
	
	myPB.dirInfo.ioNamePtr = dirName;
	myPB.dirInfo.ioVRefNum = spec->vRefNum;
	myPB.dirInfo.ioDrParID = spec->parID;
	myPB.dirInfo.ioFDirIndex = -1;
							
	do{
		myPB.dirInfo.ioDrDirID = myPB.dirInfo.ioDrParID;
		myErr = PBGetCatInfoSync(&myPB);
		
		dirName[0]++;
		dirName[ dirName[0] ]=':';
		if( dirName[0]+fullPath[0]>=254 ){ fullPath[0]=0; return 1; }
		BlockMoveData(fullPath+1, dirName+dirName[0]+1, fullPath[0]);
		dirName[0]+=fullPath[0];
		BlockMoveData(dirName, fullPath, dirName[0]+1);
	}while( !(myPB.dirInfo.ioDrDirID == fsRtDirID) );
	return noErr;
 }

void NScanResource( MADLibrary *inMADDriver)
{
	short	i;
	
#define BASERES	1000
	
	for( i = 0; i < MAXPLUG; i++)
	{
		Boolean ResourceOK;
		Handle	aRes, bRes;
		
		ResourceOK = true;
		
		aRes = MADGet1Resource( 'CODE', BASERES + i, inMADDriver);
		if( aRes == NULL) ResourceOK = false;
		else
		{
			DisposeHandle( aRes);
			aRes = NULL;
		}
		
		bRes = MADGet1Resource( 'STR#', BASERES + i, inMADDriver);
		if( bRes == NULL) ResourceOK = false;
		else
		{
			DisposeHandle( bRes);
			bRes = NULL;
		}
		
		if( inMADDriver->TotalPlug < MAXPLUG && ResourceOK == true)
		{
			short		No = inMADDriver->TotalPlug;
			Handle		theRes;
			Str255		tStr;
			
		//	theName = LMGetCurApName();
			
			HGetVol( NULL, &inMADDriver->ThePlug[ No].file.vRefNum, &inMADDriver->ThePlug[ No].file.parID);
			pStrCpy( inMADDriver->ThePlug[ No].file.name, RSRCNAME);
			
			/** CODE du Plug-in **/
			
			GetIndString( tStr, BASERES+i, 1);
			BlockMoveData( tStr + 1, &inMADDriver->ThePlug[ No].type, 4);
			inMADDriver->ThePlug[ No].type[ 4] = 0;
			
			GetIndString( tStr, BASERES+i, 2);
			BlockMoveData( tStr + 1, &inMADDriver->ThePlug[ No].mode, 4);
			
			GetIndString( inMADDriver->ThePlug[ No].MenuName, BASERES+i, 3);
			GetIndString( inMADDriver->ThePlug[ No].AuthorString, BASERES+i, 4);
			
			inMADDriver->TotalPlug++;
		}
	}
}

static void  CopyCatalogNodeInfo( CatalogRecord *src, CatalogRecord *dest )
{
	dest->hfsFile.dataLogicalSize	= src->hfsFile.dataLogicalSize;
	dest->hfsFile.dataPhysicalSize = src->hfsFile.dataPhysicalSize;
	dest->hfsFile.rsrcLogicalSize	= src->hfsFile.rsrcLogicalSize;
	dest->hfsFile.rsrcPhysicalSize = src->hfsFile.rsrcPhysicalSize;
	dest->hfsFile.modifyDate = src->hfsFile.modifyDate;
	BlockMoveData( src->hfsFile.dataExtents, dest->hfsFile.dataExtents, sizeof(HFSExtentRecord) );
	BlockMoveData( src->hfsFile.rsrcExtents, dest->hfsFile.rsrcExtents, sizeof(HFSExtentRecord) );
}

static CWResult LinkHeaders(CWPluginContext context, XPIDLSettings& settings)
{
	// find out how many files there are to link.
	long fileCount = 0;
	CWResult err = CWGetProjectFileCount(context, &fileCount);
	if (err != cwNoErr || fileCount == 0)
		return err;

	// get the output directory.
	FSSpec outputDir;
	err = CWGetOutputFileDirectory(context, &outputDir);
	if (!CWSUCCESS(err))
		return err;
	
	// enumerate all of the output header files, and make aliases to them in
	// the output directory.
	for (long index = 0; (err == cwNoErr) && (index < fileCount); index++) {
		// get the name of each output file.
		CWFileSpec outputFile;
		err = CWGetStoredObjectFileSpec(context, index, &outputFile);
		if (err == cwNoErr) {
			FInfo info;
			err = FSpGetFInfo(&outputFile, &info);
			
			FSSpec aliasFile = { outputDir.vRefNum, outputDir.parID };
			BlockMoveData(outputFile.name, aliasFile.name, 1 + outputFile.name[0]);
			
			AliasHandle alias = NULL;
			if (NewAliasMinimal(&outputFile, &alias) == noErr) {
				// recreate the alias file from scratch.
				FSpDelete(&aliasFile);
				FSpCreateResFile(&aliasFile, info.fdCreator, info.fdType, smRoman);
				short refNum = FSpOpenResFile(&aliasFile, fsRdWrPerm);
				if (refNum != -1) {
					UseResFile(refNum);
					AddResource(Handle(alias), rAliasType, 0, aliasFile.name);
					ReleaseResource(Handle(alias));
					UpdateResFile(refNum);
					CloseResFile(refNum);
				}
				// finally, mark the newly created file as an alias file.
				FSpGetFInfo(&aliasFile, &info);
				info.fdFlags |= kIsAlias;
				FSpSetFInfo(&aliasFile, &info);
			}
		}
	}
	
	// create the target file in the output directory.
	BlockMoveData(settings.output, outputDir.name, 1 + settings.output[0]);
	FILE* outputFile = FSp_fopen(&outputDir, "w");
	if (outputFile != NULL) fclose(outputFile);

	return err;
}

int  SDL_SYS_CDInit(void)
{
	SInt16			dRefNum = 0;
	SInt16			first, last;

	SDL_numcds = 0;

	/* Check that the software is available */
	if (Gestalt(kGestaltAudioCDSelector, &SDL_cdversion) || 
			!SDL_cdversion) return(0);

	/* Fill in our driver capabilities */
	SDL_CDcaps.Name = SDL_SYS_CDName;
	SDL_CDcaps.Open = SDL_SYS_CDOpen;
	SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
	SDL_CDcaps.Status = SDL_SYS_CDStatus;
	SDL_CDcaps.Play = SDL_SYS_CDPlay;
	SDL_CDcaps.Pause = SDL_SYS_CDPause;
	SDL_CDcaps.Resume = SDL_SYS_CDResume;
	SDL_CDcaps.Stop = SDL_SYS_CDStop;
	SDL_CDcaps.Eject = SDL_SYS_CDEject;
	SDL_CDcaps.Close = SDL_SYS_CDClose;

	/* Walk the list, count each AudioCD driver, and save the refnums */
	first = -1;
	last = 0 - LMGetUnitTableEntryCount();
	for(dRefNum = first; dRefNum >= last; dRefNum--) {
		Str255		driverName;
		StringPtr	namePtr;
		DCtlHandle	deviceEntry;

		deviceEntry = GetDCtlEntry(dRefNum);
		if (! deviceEntry) continue;
		
		/* Is this an .AppleCD ? */
		namePtr = (*deviceEntry)->dCtlFlags & (1L << dRAMBased) ?
				((StringPtr) ((DCtlPtr) deviceEntry)->dCtlDriver + 18) :
				((StringPtr) (*deviceEntry)->dCtlDriver + 18);
		BlockMoveData(namePtr, driverName, namePtr[0]+1);
		if (driverName[0] > gDriverName[0]) driverName[0] = gDriverName[0];
		if (! EqualString(driverName, gDriverName, false, false)) continue;

		/* Record the basic info for each drive */
		SDL_cdlist[SDL_numcds].dRefNum = dRefNum;
		BlockMoveData(namePtr + 1, SDL_cdlist[SDL_numcds].name, namePtr[0]);
		SDL_cdlist[SDL_numcds].name[namePtr[0]] = 0;
		SDL_cdlist[SDL_numcds].hasAudio = false;
		SDL_numcds++;
	}
	return(0);
}

int  SDL_SYS_CDInit(void)
{
	SInt16			dRefNum = 0;
	SInt16			first, last;

	SDL_numcds = 0;

	
	if (Gestalt(kGestaltAudioCDSelector, &SDL_cdversion) || 
			!SDL_cdversion) return(0);

	
	SDL_CDcaps.Name = SDL_SYS_CDName;
	SDL_CDcaps.Open = SDL_SYS_CDOpen;
	SDL_CDcaps.GetTOC = SDL_SYS_CDGetTOC;
	SDL_CDcaps.Status = SDL_SYS_CDStatus;
	SDL_CDcaps.Play = SDL_SYS_CDPlay;
	SDL_CDcaps.Pause = SDL_SYS_CDPause;
	SDL_CDcaps.Resume = SDL_SYS_CDResume;
	SDL_CDcaps.Stop = SDL_SYS_CDStop;
	SDL_CDcaps.Eject = SDL_SYS_CDEject;
	SDL_CDcaps.Close = SDL_SYS_CDClose;

	
	first = -1;
	last = 0 - LMGetUnitTableEntryCount();
	for(dRefNum = first; dRefNum >= last; dRefNum--) {
		Str255		driverName;
		StringPtr	namePtr;
		DCtlHandle	deviceEntry;

		deviceEntry = GetDCtlEntry(dRefNum);
		if (! deviceEntry) continue;
		
		
		namePtr = (*deviceEntry)->dCtlFlags & (1L << dRAMBased) ?
				((StringPtr) ((DCtlPtr) deviceEntry)->dCtlDriver + 18) :
				((StringPtr) (*deviceEntry)->dCtlDriver + 18);
		BlockMoveData(namePtr, driverName, namePtr[0]+1);
		if (driverName[0] > gDriverName[0]) driverName[0] = gDriverName[0];
		if (! EqualString(driverName, gDriverName, false, false)) continue;

		
		SDL_cdlist[SDL_numcds].dRefNum = dRefNum;
		BlockMoveData(namePtr + 1, SDL_cdlist[SDL_numcds].name, namePtr[0]);
		SDL_cdlist[SDL_numcds].name[namePtr[0]] = 0;
		SDL_cdlist[SDL_numcds].hasAudio = false;
		SDL_numcds++;
	}
	return(0);
}

OSErr PutFile (ConstStr255Param thePrompt, ConstStr255Param theFileName, FSSpecPtr theFSSpecPtr, Boolean *theIsSelected, Boolean *theIsReplacing)
{
	NavReplyRecord		myReply;
	NavDialogOptions		myDialogOptions;
	NavEventUPP		myEventUPP = NewNavEventUPP(HandleNavEvent);
	OSErr				myErr = noErr;

	if ((theFSSpecPtr == NULL) || (theIsSelected == NULL) || (theIsReplacing == NULL))
		return(paramErr);

	// assume we are not replacing an existing file
	*theIsReplacing = false;

        *theIsSelected = false;

	// specify the options for the dialog box
	NavGetDefaultDialogOptions(&myDialogOptions);
	myDialogOptions.dialogOptionFlags += kNavNoTypePopup;
	myDialogOptions.dialogOptionFlags += kNavDontAutoTranslate;
	BlockMoveData(theFileName, myDialogOptions.savedFileName, theFileName[0] + 1);
	BlockMoveData(thePrompt, myDialogOptions.message, thePrompt[0] + 1);

	// prompt the user for a file
	myErr = NavPutFile(NULL, &myReply, &myDialogOptions, myEventUPP, MovieFileType, sigMoviePlayer, NULL);
	if ((myErr == noErr) && myReply.validRecord)
    {
		AEKeyword		myKeyword;
		DescType		myActualType;
		Size			myActualSize = 0;

		// get the FSSpec for the selected file
		if (theFSSpecPtr != NULL)
			myErr = AEGetNthPtr(&(myReply.selection), 1, typeFSS, &myKeyword, &myActualType, theFSSpecPtr, sizeof(FSSpec), &myActualSize);

                *theIsSelected = myReply.validRecord;
                if (myReply.validRecord)
                {
                    *theIsReplacing = myReply.replacing;
                }

		NavDisposeReply(&myReply);
	}


	DisposeNavEventUPP(myEventUPP);

	return(myErr);
}

void moveright (ptrvoid psource, ptrvoid pdest, long length) {

    /*
    do a mass memory move with the right edge leading.  good for opening
    up a gap in a buffer, among other thingsÉ
    */

#if defined (MACVERSION)
    BlockMoveData (psource, pdest, length);

#else
    register ptrbyte ps, pd;
    register long ctloops;

    ctloops = length;

    if (ctloops > 0) {

        ps = (ptrbyte) psource + length - 1; /*right edge of source*/

        pd = (ptrbyte) pdest + length - 1; /*right edge of destination*/

        while (ctloops--)
            *pd-- = *ps--;
    }
#endif
} /*moveright*/

//--------------------------------------------------------------
bool createMovieFromURL(string urlIn,  Movie &movie){
	char * url = (char *)urlIn.c_str();
	Handle urlDataRef;

	OSErr err;

	urlDataRef = NewHandle(strlen(url) + 1);
	if ( ( err = MemError()) != noErr){
		ofLogError("ofQuickTimePlayer") << "createMovieFromURL(): couldn't create url handle from \"" << urlIn << "\": OSErr " << err;
		return false;
	}

	BlockMoveData(url, *urlDataRef, strlen(url) + 1);

	err = NewMovieFromDataRef(&movie, newMovieActive,nil, urlDataRef, URLDataHandlerSubType);
	DisposeHandle(urlDataRef);

	if(err != noErr){
		ofLogError("ofQuickTimePlayer") << "createMovieFromURL(): couldn't load url \"" << urlIn << "\": OSErr " << err;
		return false;
	}else{
		return true;
	}

	return false;
}

OSErr NSLoadNamedFragment(const FSSpec *fileSpec, const char* fragmentName, CFragConnectionID *outConnectionID)
{
    UInt32      fragOffset, fragLength;
    short       fragNameLength;
    Ptr             main;
    Str255      fragName;
    Str255      errName;
    OSErr           err;
    
    err = GetNamedFragmentOffsets(fileSpec, fragmentName, &fragOffset, &fragLength);
    if (err != noErr) return err;
    
    // convert fragment name to pascal string
    fragNameLength = strlen(fragmentName);
    if (fragNameLength > 255)
        fragNameLength = 255;
    BlockMoveData(fragmentName, &fragName[1], fragNameLength);
    fragName[0] = fragNameLength;
    
    // Note that we pass the fragment name as the 4th param to GetDiskFragment.
    // This value affects the ability of debuggers, and the Talkback system,
    // to match code fragments with symbol files
    err = GetDiskFragment(fileSpec, fragOffset, fragLength, fragName, 
                    kLoadCFrag, outConnectionID, &main, errName);

    return err;
}

OSErr 
HFSPlusExtentsOverflow::readBytes (long long start, long long count, void **buffer)
{
	UInt32 blockSize = fVolume->getBlockSize ();

	UInt32 extraBytesAtStart = start % blockSize;
	if (extraBytesAtStart) {
		start -= extraBytesAtStart;
		count += extraBytesAtStart;
	}
	
	UInt32 extraBytesAtEnd = count % blockSize;
	if (extraBytesAtEnd) count += blockSize - extraBytesAtEnd;
	
	if ((start % blockSize != 0) || (count % blockSize != 0)) {
		#if qLogging
			gLogFile << "Unaligned allocation block read" << endl_AC;
		#endif
		ThrowException_AC (kUnalignedAllocationBlockRead, 0);
	}
	start /= blockSize;
	count /= blockSize;
	OSErr err = readAllocationBlocks (start, count, buffer);
	if (err) return err;
	
	if (extraBytesAtStart) {
		UInt8 *mark = (UInt8 *) *buffer;
		mark += extraBytesAtStart;
		BlockMoveData (mark, *buffer, count * blockSize - extraBytesAtStart);
	}
	
	return noErr;
}

OSType	GetPPPlugType( MADLibrary *inMADDriver, short ID, OSType mode)
{
	short	i, x;

	if( ID >= inMADDriver->TotalPlug) MyDebugStr( __LINE__, __FILE__, "PP-Plug ERROR. ");

	for( i = 0, x = 0; i < inMADDriver->TotalPlug; i++)
	{
		if( inMADDriver->ThePlug[ i].mode == mode || inMADDriver->ThePlug[ i].mode == 'EXIM')
		{
			if( ID == x)
			{
				short 	xx;
				OSType	type;
				
				xx = strlen( inMADDriver->ThePlug[ i].type);
				if( xx > 4) xx = 4;
				type = '    ';
				BlockMoveData( inMADDriver->ThePlug[ i].type, &type, xx);

				return type;
			}
			x++;
		}
	}

	MyDebugStr( __LINE__, __FILE__, "PP-Plug ERROR II.");
	
	return noErr;
}