/// <summary> /// Called to delete a child from a directory. /// </summary> /// <param name="child">The IVfsNode interface of the child.</param> /// <param name="dentry">The DirectoryEntry of the child.</param> /// <remarks> /// This function deletes a child IVfsNode from a directory. If child is a directory, it will be empty /// before this call is executed. It is recommended to include a debug sanity check though. If the file /// system needs to know the name of the child to delete, it can retrieve it from <see cref="DirectoryEntry.Name"/>. /// </remarks> /// <exception cref="System.NotSupportedException">The object does not support removal this way. There's most likely an object specific API to remove this IVfsNode.</exception> public override void Delete(IVfsNode child, DirectoryEntry dentry) { FatFileSystem fs = this.FileSystem as FatFileSystem; uint targetCluster = (child as VfsDirectory).directoryCluster; FatFileLocation location = fs.FindEntry(new Find.ByCluster(targetCluster), this.directoryCluster); if (!location.Valid) { throw new System.ArgumentException(); //throw new IOException ("Unable to delete directory because it is not empty"); } fs.Delete(targetCluster, location.DirectorySector, location.DirectorySectorIndex); }
/// <summary> /// </summary> /// <param name="name"></param> /// <returns></returns> public override IVfsNode Lookup(string name) { FatFileLocation location = (FileSystem as VfsFileSystem).FAT.FindEntry(new Find.WithName(name), this.directoryCluster); if (!location.Valid) { return(null); } if (location.IsDirectory) { return(new VfsDirectory(FileSystem, location.FirstCluster)); } else { return(new VfsFile(FileSystem, location.FirstCluster, location.DirectorySector, location.DirectorySectorIndex)); } }
/// <summary> /// Initializes a new instance of the <see cref="FatFileStream"/> class. /// </summary> /// <param name="fs">The fs.</param> /// <param name="location">The location.</param> public FatFileStream(FatFileSystem fs, FatFileLocation location) : this(fs, location.FirstCluster, location.DirectorySector, location.DirectorySectorIndex) { }