Exemple #1
0
        public DirectoryItem(VFS.DirectoryInfo info)
        {
            this.modifyTime = new DateTime((long)info.modifyTime);
            this.creationTime = new DateTime((long)info.creationTime);
            this.name = info.name;
            this.path = info.path;
            this.isDirectory = info.isDirectory;
            this.flag = info.flags;
            this.owner = info.owner;
            this.inodeIndex = info.inodeIndex;
            this.blockPreserved = info.inode.blockPreserved;
            this.refCount = info.inode.linkCount;

            if (info.isDirectory)
            {
                this.extension = "文件夹";
                this.icon = ShellFileInfo.GetFolderIcon(ShellFileInfo.IconSize.Small, ShellFileInfo.FolderType.Closed);
                this.size = "";
            }
            else
            {
                this.extension = ShellFileInfo.GetFileTypeDescription(this.name);
                this.icon = ShellFileInfo.GetFileIcon(this.name, ShellFileInfo.IconSize.Small, false);
                this.size = Utils.FormatSize(info.size);
            }
        }
Exemple #2
0
            /// <summary>
            /// 创建一个文件夹
            /// </summary>
            /// <param name="name"></param>
            public void CreateDirectory(String name)
            {
                VFS.AssertNameValid(name);

                INode inode = vfs.AllocateINode(1, 2333);

                if (!dir.Add(name, new INodeDirectory(vfs, inode)))
                {
                    throw new Exception("创建文件夹失败");
                }
            }
Exemple #3
0
            /// <summary>
            /// 重命名文件或文件夹
            /// </summary>
            /// <param name="oldName"></param>
            /// <param name="newName"></param>
            public void Rename(String oldName, String newName)
            {
                VFS.AssertNameValid(oldName);
                VFS.AssertNameValid(newName);

                if (!dir.Contains(oldName))
                {
                    throw new Exception("文件或文件夹未找到");
                }
                if (dir.Contains(newName))
                {
                    throw new Exception("新文件名与现有文件或文件夹名称冲突");
                }
                if (!dir.Rename(oldName, newName))
                {
                    throw new Exception("重命名失败");
                }
            }
Exemple #4
0
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            if (Properties.Settings.Default["vfsfile"] == null || ((String)(Properties.Settings.Default["vfsfile"])).Length == 0)
            {
                var r = System.Windows.Forms.MessageBox.Show("首次启动 VFS 需要在磁盘上建立一个虚拟磁盘镜像文件,镜像文件大小为 1GB。\n点击确定后请选择一个可以写入的位置来建立此文件,点击取消关闭程序。", "磁盘镜像文件未找到", System.Windows.Forms.MessageBoxButtons.OKCancel, System.Windows.Forms.MessageBoxIcon.Information);
                if (r == System.Windows.Forms.DialogResult.Cancel)
                {
                    Close();
                    return;
                }

                using (var dialog = new System.Windows.Forms.SaveFileDialog())
                {
                    dialog.Title = "保存磁盘镜像文件";
                    dialog.FileName = "vfs.bin";
                    var result = dialog.ShowDialog();
                    if (result == System.Windows.Forms.DialogResult.Cancel)
                    {
                        Close();
                        return;
                    }
                    else
                    {
                        try
                        {
                            device = new FileAdapter(dialog.FileName, 1 << 10 << 10 << 10);
                        }
                        catch (Exception ex)
                        {
                            System.Windows.Forms.MessageBox.Show("打开镜像文件失败,可能您没有权限在该位置写入文件,或您内存不足。程序即将退出,请重新打开程序。");
                            Close();
                            return;
                        }
                        // 更新配置
                        Properties.Settings.Default["vfsfile"] = dialog.FileName;
                        Properties.Settings.Default.Save();
                    }
                }
            }
            else
            {
                device = new FileAdapter((String)Properties.Settings.Default["vfsfile"], 1 << 10 << 10 << 10);
            }

            vfs = new VFS(device);
            if (!vfs.IsFormated())
            {
                var result = System.Windows.Forms.MessageBox.Show("该磁盘镜像文件尚未格式化,是否格式化?", "VFS", System.Windows.Forms.MessageBoxButtons.YesNo);
                if (result == System.Windows.Forms.DialogResult.No)
                {
                    Close();
                    return;
                }

                vfs.Format(device.Size() >> 10, 4);

                // 写入一个示例文件
                var file = vfs.NewFile("/README.txt", VFS.FileMode.Create);
                file.Write(Encoding.UTF8.GetBytes("Hello world!\r\n\r\n这个文件是格式化时自动建立的,如果你看到了这个文件,说明一切工作正常。\r\n\r\n当你使用记事本修改这个文件并保存以后,它会同步到虚拟文件系统中。\r\n\r\n该虚拟文件系统是索引文件系统,inode 默认占总空间的 10%,理论可支持单一文件最大 2GB。"));

                System.Windows.Forms.MessageBox.Show("磁盘格式化成功!", "VFS", System.Windows.Forms.MessageBoxButtons.OK, System.Windows.Forms.MessageBoxIcon.Information);
            }

            LoadDirectory("/");

            UpdateInfo();
        }
Exemple #5
0
            public File(VFSCore vfs, String path, FileMode fileMode)
            {
                this.vfs = vfs;

                var directory = VFS.GetPathDirectory(path);
                var name      = VFS.GetPathName(path);

                VFS.AssertNameValid(name);

                INodeDirectory dir = INodeDirectory.Resolve(vfs, directory);

                if (dir == null)
                {
                    throw new Exception("无法访问目录");
                }
                switch (fileMode)
                {
                case FileMode.CreateNew:
                    if (dir.Contains(name))
                    {
                        throw new Exception("文件已存在");
                    }
                    CreateFile(dir, name);
                    break;

                case FileMode.Create:
                    if (dir.Contains(name))
                    {
                        OpenFile(dir, name);
                        inode.Resize(0);
                    }
                    else
                    {
                        CreateFile(dir, name);
                    }
                    break;

                case FileMode.Open:
                    if (!dir.Contains(name))
                    {
                        throw new Exception("文件未找到");
                    }
                    OpenFile(dir, name);
                    break;

                case FileMode.OpenOrCreate:
                    if (dir.Contains(name))
                    {
                        OpenFile(dir, name);
                    }
                    else
                    {
                        CreateFile(dir, name);
                    }
                    break;

                case FileMode.Truncate:
                    if (!dir.Contains(name))
                    {
                        throw new Exception("文件未找到");
                    }
                    OpenFile(dir, name);
                    inode.Resize(0);
                    break;

                case FileMode.Append:
                    if (!dir.Contains(name))
                    {
                        CreateFile(dir, name);
                    }
                    else
                    {
                        OpenFile(dir, name);
                        position = inode.data.sizeByte;
                    }
                    break;

                default:
                    throw new ArgumentException();
                }
            }