C++ (Cpp) RFile::CommitL Examples

Example #1

File: PMRfsPlugin.cpp Project: kuailexs/symbiandump-mw3

TBool CPMRfsPlugin::IsMMCFormatFlagEnabledL()
	{
	RDEBUG("CPMRfsPlugin::IsMMCFormatFlagEnabledL()");
	
	RFs rfs;
	User::LeaveIfError( rfs.Connect() );
	CleanupClosePushL( rfs );	
#ifndef RD_MULTIPLE_DRIVE
	TFileName fullPath;
	fullPath.Append( _L("e") );
	fullPath.Append( MDriveColon );	
	fullPath.Append( KDMUtilServerPrivatePath );
	fullPath.Append( KMMCEraseFlagFileName );
		
	RFile file;
	TInt err = file.Open( rfs, fullPath, EFileRead );
	file.Close();
	
	CleanupStack::PopAndDestroy( &rfs );
	
	if( err == KErrNone )
		{
		RDEBUG("CPMRfsPlugin::IsMMCFormatFlagEnabled() - returned: ETrue");
		return ETrue;
		}
	
	RDEBUG_2("CPMRfsPlugin::IsMMCFormatFlagEnabled() - returned: EFalse: %d)", err);
	return EFalse;
#else
	TDriveList driveList;
	TInt driveCount;
	TBool fileReplace = EFalse;
	TInt err = KErrNone;
	
	//Get all removeable drive, both physically and logically
	User::LeaveIfError(DriveInfo::GetUserVisibleDrives(
            rfs,  driveList,  driveCount, KDriveAttRemovable ));
    
    TInt max(driveList.Length());
    
    RFileWriteStream file;
    for(TInt i=0; i<max;++i)
    {
    	if (driveList[i])
    	{
    		TUint status;
    		DriveInfo::GetDriveStatus(rfs, i, status);
    		//To make sure the drive is physically removeable not logically removeable	
    		//need to format internal mass memory also. So no need to check the below condition
    		//if (status & DriveInfo::EDriveRemovable)
    		{
    			TChar driveLetter;
    			rfs.DriveToChar(i,driveLetter);
				
				TFileName fullPath;
				fullPath.Append( driveLetter );
				fullPath.Append( MDriveColon );
				fullPath.Append( KDMUtilServerPrivatePath );
				fullPath.Append( KMMCEraseFlagFileName );
				
				RFile flagfile;
				err = flagfile.Open( rfs, fullPath, EFileRead );
				flagfile.Close();

				if( err == KErrNone )
				{
					if (!fileReplace)
					{
						User::LeaveIfError(file.Temp(rfs, _L("C:\\"),iFileName, EFileWrite));	
						file.WriteInt16L(65279);
						CleanupClosePushL(file);  
							
						fileReplace = ETrue;
						RDEBUG("CPMRfsPlugin::IsMMCFormatFlagEnabled() - File created on private path");
					}
			
					file.WriteL(_L("FORMAT"));
					file.WriteL(_L(" "));
					TBuf<4> DriveLetterBuf;
					DriveLetterBuf.Append(driveLetter);
					file.WriteL(DriveLetterBuf);
					file.WriteL(_L(":"));
					file.WriteL(_L("\r\n"));
					
				}
					
			}
    	}
     }
     
   	if (fileReplace)
   	{
   		file.CommitL();
   		CleanupStack::PopAndDestroy(); // pop file
   	}
		
	CleanupStack::PopAndDestroy( &rfs );	
     if (fileReplace)
     {
     	RDEBUG("CPMRfsPlugin::IsMMCFormatFlagEnabled() - returned: ETrue:");
     	return ETrue;
     }
     else
     {
     	RDEBUG_2("CPMRfsPlugin::IsMMCFormatFlagEnabled() - returned: EFalse: %d)", err);
     	return EFalse;
     }
    

#endif //RD_MULTIPLE_DRIVE
	}