hx_morefiles.cpp

来自「symbian 下的helix player源代码」· C++ 代码 · 共 642 行 · 第 1/2 页

	short		theResFile=-1;
	Boolean		theResult=false;
	Str255		message;

	saveResFile=CurResFile();

	if (theFile == 0L) goto CleanUp;
	if (theversion == 0L) goto CleanUp;
	
	theResFile=FSpOpenResFile(theFile,fsRdPerm);
	if (theResFile != -1) {
		r = GetResource('vers',1);
		if (r==0L) goto CleanUp;
		
		HLock(r);
		HNoPurge(r);
		
		*r+=(sizeof(Byte)*4)+sizeof(short);
		
		*r+=**r;
		
		BlockMove(*r,message,sizeof(Str255));
		
#ifdef _CARBON
		p2cstrcpy((char*)message, message);
#else
		p2cstr(message);
#endif
		
		SafeStrCpy(theversion,(char *)message, ulBufLen);
				
		}//if
CleanUp:
	//if (theResFile >=0) CloseResFile(theResFile);
	UseResFile(saveResFile);
	return(theResult);
}

// 
// FSpGetFileAge
//
// This function returns the age of a file relative to the current time.
//
// It is legal to pass in NULL if you don't want a particular age granularity.

Boolean
FSpGetFileAge(FSSpec*	file,long* minutes,long* seconds,long* ticks)
{

	HParmBlkPtr		fileinfo=(HParmBlkPtr)NewPtrClear(sizeof(HParamBlockRec));
	Boolean			theResult=false;
	unsigned long		curseconds;
	
	GetDateTime(&curseconds); // seconds since 1904

	if (file == 0L) goto CleanUp;
	if (fileinfo == 0L) goto CleanUp;

	fileinfo->fileParam.ioNamePtr=file->name;
	fileinfo->fileParam.ioDirID=file->parID;
	fileinfo->fileParam.ioVRefNum=file->vRefNum;
	
	if (noErr != PBHGetFInfoSync(fileinfo)) goto CleanUp;
	
	if (ticks != NULL) 
	{
	    unsigned long createTicks = (fileinfo->fileParam.ioFlCrDat * 60);
	    unsigned long curticks = curseconds * 60;
	    *ticks=curticks - createTicks;
	    if (*ticks < 0)
	    	*ticks = 0;
	}
	if (seconds != NULL) 
	{
	    unsigned long createSecs = fileinfo->fileParam.ioFlCrDat;
	    *seconds=curseconds - createSecs;
	    if (*seconds < 0)
	    	*seconds = 0;
	}
	if (minutes != NULL) 
	{
	    unsigned long createMinutes = fileinfo->fileParam.ioFlCrDat / 60;
	    unsigned long curMinutes = curseconds / 60;
	    *minutes = (curMinutes - createMinutes);
	    if (*minutes < 0)
	    	*minutes = 0;
	}
	
	theResult=true;
	
CleanUp:
	if (fileinfo != 0L) DisposePtr((Ptr)fileinfo);	

	return (theResult);

}

Boolean		
IsFolder(FSSpec* spec)
{
    long dirID;
    Boolean isDir;
    OSErr err;
    
    err = FSpGetDirectoryID(spec, &dirID, &isDir);
    return ((err == noErr) && isDir);    
}

OSErr	GetMoreVInfo(short volref, StringPtr name, unsigned long *volcreated, Boolean *islocked)
{
HVolumeParam	block;
OSErr			err;

	memset(&block, 0x00, sizeof(block));
	block.ioVolIndex = 0;
	block.ioVRefNum = volref;
	block.ioNamePtr = name;
	err = PBHGetVInfoSync((HParmBlkPtr)&block);
	if (!err) {
		if (islocked) *islocked = (block.ioVAtrb & (1<<7)) != 0;
		if (volcreated) *volcreated = block.ioVCrDate;
	}
	return err;
}

#ifdef _CARBON
// Stuff that used to be in MoreFilesExtras but isn't in MoreFilesX in FSSpec form

OSErr FSpGetDirectoryID(const FSSpec* pDirSpec, long *pDirID, Boolean *pIsDir)
{
	FSRef dirRef;
	Boolean isDir = false;
	long dirID = 0;
	OSErr err;
	
	err = FSpMakeFSRef(pDirSpec, &dirRef);
	if (err == noErr)
	{
		err = FSGetNodeID(&dirRef, &dirID, &isDir);
	}
	
	if (pDirID) *pDirID = dirID;
	if (pIsDir) *pIsDir = isDir;
	return err;
}

OSErr FSpMoveRenameCompat(const FSSpec * srcSpec, const FSSpec * dstSpec, ConstStr255Param  copyName)
{
	FSRef	srcRef, destDirRef, newRef;
	HFSUniStr255 hfsUniName;
	OSErr err;
	
	err = FSpMakeFSRef(srcSpec, &srcRef);
	require_noerr(err, CantMakeSrcRef);
	
	err = FSpMakeFSRef(dstSpec, &destDirRef);
	require_noerr(err, CantMakeDestRef);
	
	if (copyName)
	{
		err = HFSNameGetUnicodeName(copyName, kTextEncodingUnknown, &hfsUniName);
		require_noerr(err, CantMakeUnicodeName);
	}
	
	err = FSMoveRename(&srcRef, &destDirRef, hfsUniName.length, copyName ? hfsUniName.unicode : NULL,
		kTextEncodingUnknown, &newRef);
	require_noerr(err, CantMoveRename);
	
	return noErr;
	
// reverse-order cleanup

CantMoveRename:
CantMakeUnicodeName:
CantMakeDestRef:
CantMakeSrcRef:
	
	return err;
}

OSErr	DeleteDirectory(short vRefNum, long dirID, ConstStr255Param name)
{
	FSRef dirRef;
	OSErr err;

	err = FSMakeFSRef(vRefNum, dirID, name, &dirRef);
	if (err == noErr)
	{
		err = FSDeleteContainerContents(&dirRef);
	}
	return err;
}


OSErr FSpFileCopy(const FSSpec *srcSpec, const FSSpec *dstSpec, ConstStr255Param copyName,
	void *copyBufferPtr, long copyBufferSize, Boolean preflight)
{
	// Ultimately, this should be replaced with a new one that accompanies MoreFilesX, but that's not
	// yet available from Apple
	void *pBuff = NULL;
	long dirID;
	Str255 newName;
	FSSpec newSpec;
	short srcRefNum = -1;
	short destRefNum = -1;
	FInfo fInfo;
	OSErr err;
	
	// get a buffer to use for copying
	if (copyBufferPtr)
	{
		pBuff = copyBufferPtr;
	}
	else
	{
		copyBufferSize = 16*1024;
		pBuff = NewPtr(copyBufferSize);
	}
	require_nonnull(pBuff, CantGetBuffer);
	

	// copy the name of the new file
	if (copyName)
	{
		BlockMoveData(&copyName[0], &newName[0], 1 + copyName[0]);
	}
	else
	{
		BlockMoveData(&srcSpec->name[0], &newName[0], 1 + srcSpec->name[0]);
	}
	
	// make a new file; bail if it already exists
	err = FSpGetDirectoryID(dstSpec, &dirID, NULL);
	require_noerr(err, CantGetDirID);
	
	err = FSMakeFSSpec(dstSpec->vRefNum, dirID, newName, &newSpec);
	require(err == fnfErr, FileExistsAlready);
	
	// create the file
	
	err = FSpCreate(&newSpec, 0, 0, smSystemScript);
	require_noerr(err, CantMakeNewFile);
	
	// copy the data forks
	
	err = FSpOpenDF(srcSpec, fsRdPerm, &srcRefNum);
	require_noerr(err, CantOpenSourceDF);
	
	err = FSpOpenDF(&newSpec, fsRdWrPerm, &destRefNum);
	require_noerr(err, CantOpenDestDF);
	
	err = FSCopyFork(srcRefNum, destRefNum, pBuff, copyBufferSize);
	require_noerr(err, CantCopyDataFork);
	
	FSClose(srcRefNum);
	FSClose(destRefNum);
	
	srcRefNum = -1;
	destRefNum = -1;

	// copy the resource forks
	
	err = FSpOpenRF(srcSpec, fsRdPerm, &srcRefNum);
	require_noerr(err, CantOpenSourceRF);
	
	err = FSpOpenRF(&newSpec, fsRdWrPerm, &destRefNum);
	require_noerr(err, CantOpenDestRF);
	
	err = FSCopyFork(srcRefNum, destRefNum, pBuff, copyBufferSize);
	require_noerr(err, CantCopyResourceFork);
	
	FSClose(srcRefNum);
	FSClose(destRefNum);
	
	srcRefNum = -1;
	destRefNum = -1;
	
	// copy Finder info
	err = FSpGetFInfo(srcSpec, &fInfo);
	require_noerr(err, CantGetFInfo);
	
	fInfo.fdLocation.h = fInfo.fdLocation.v = 0;
	fInfo.fdFldr = 0;
	fInfo.fdFlags &= ~kHasBeenInited;
	err = FSpSetFInfo(&newSpec, &fInfo);
	require_noerr(err, CantSetFInfo);
	
	// we're done with the buffer; dispose it if we allocated it here	
	if (copyBufferPtr == NULL)
	{
		DisposePtr((Ptr) pBuff);
	}
	return noErr;

// reverse-order cleanup

CantSetFInfo:
CantGetFInfo:
CantCopyResourceFork:
CantOpenDestRF:
CantOpenSourceRF:
CantCopyDataFork:
	if (destRefNum != -1) FSClose(destRefNum);	
CantOpenDestDF:
	if (srcRefNum != -1) FSClose(srcRefNum);
CantOpenSourceDF:
	FSpDelete(&newSpec);
CantMakeNewFile:
FileExistsAlready:
CantGetDirID:
	if (pBuff && !copyBufferPtr)
	{
		DisposePtr((Ptr) pBuff);
	}
CantGetBuffer:
	return err;
	
}

#endif