Example #1
0
        /// <summary>
        /// "Инициализирует" файловую систему
        /// </summary>
        /// <param name="hardDriverSize">размер диска в байтах</param>
        public FileSystem(int hardDriverSize)
        {
            HardDriverSize      = hardDriverSize;
            ClusterSize         = 4096;
            FAT                 = new FAT32(HardDriverSize / 4096);
            directoriesAndFiles = new object[FAT.TableSize];
            //
            // Создаем корневой каталог
            //
            int        clusterForRoot = FAT.GetNextFreeBlock();
            Attributes rootAttributes = new Attributes(false, false, true, false, true, false);

            RootDirectoryCatalog = new CatalogEntry(rootAttributes, ClusterSize / 32, clusterForRoot, "\\", "");
            directoriesAndFiles[clusterForRoot] = new Directory(RootDirectoryCatalog);
            CurrentDirectory = RootDirectoryCatalog;
            CreateDotFile dotFile = new CreateDotFile(this, clusterForRoot);

            dotFile.Execute();
        }
Example #2
0
        /// <summary>
        /// Создает каталог
        /// </summary>
        /// <returns></returns>
        internal override bool Execute()
        {
            Directory currentDirectory;
            int       clusterForDirectory = FileSystem.FAT.GetNextFreeBlock();

            if (clusterForDirectory != GlobalConstants.EOC)
            {
                if (FileSystem.directoriesAndFiles[FileSystem.CurrentDirectory.FirstBlockNumber] == null)
                {
                    return(false);
                }
                currentDirectory = (Directory)FileSystem.directoriesAndFiles[FileSystem.CurrentDirectory.FirstBlockNumber];
                CatalogEntry catalogEntry = new CatalogEntry(attributes, FileSystem.ClusterSize / 32, clusterForDirectory, name, "");
                if (!currentDirectory.IsThereFreeSpace(currentDirectory.LastUsedClusterNumber))
                {
                    int cluster = FileSystem.FAT.GetNextFreeBlock(currentDirectory.FirstClusterNumber);
                    if (cluster == GlobalConstants.EOC)
                    {
                        return(false);
                    }
                    currentDirectory.Add(FileSystem.ClusterSize / 32, cluster);  // потому что размер каталожной записи типо 32 байта
                }
                currentDirectory.AddEntry(catalogEntry);
                //
                // ниже костыль
                //
                Directory directoryToAdd = new Directory(catalogEntry);
                //
                // выше костыль
                //
                //directoryToAdd.Add(FileSystem.ClusterSize / 32, clusterForDirectory);
                FileSystem.directoriesAndFiles[clusterForDirectory] = directoryToAdd;
                CreateDotFile       dotFile       = new CreateDotFile(FileSystem, clusterForDirectory);
                CreateDoubleDotFile doubleDotFile = new CreateDoubleDotFile(FileSystem, clusterForDirectory);
                dotFile.Execute();
                doubleDotFile.Execute();
                FileSystem.directoriesAndFiles[clusterForDirectory] = directoryToAdd;
                return(true);
            }

            return(false);
        }