/// <summary> /// 添加一个目录目录项 /// </summary> /// <param name="name"></param> /// <param name="dir"></param> /// <returns></returns> public Boolean Add(String name, INodeDirectory dir) { if (Contains(name)) { return(false); } if (dir.Contains("..")) { return(false); } entries[name] = dir.inode.index; dir.inode.data.linkCount++; dir.inode.Save(); dir.AddParent(inode.index); Save(); return(true); }
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(); } }
/// <summary> /// 添加一个目录目录项 /// </summary> /// <param name="name"></param> /// <param name="dir"></param> /// <returns></returns> public Boolean Add(String name, INodeDirectory dir) { if (Contains(name)) { return false; } if (dir.Contains("..")) { return false; } entries[name] = dir.inode.index; dir.inode.data.linkCount++; dir.inode.Save(); dir.AddParent(inode.index); Save(); return true; }
/// <summary> /// 目录下是否包含一个文件或目录 /// </summary> /// <param name="name"></param> /// <returns></returns> public Boolean Contains(String name) { return(dir.Contains(name)); }