/// <summary> /// Gets the last NoobFSBlock of the directory /// </summary> private NoobFSBlock GetBlockToEdit() { NoobFSBlock ret = _StartBlock; while (ret.NextBlock != 0) { ret = NoobFSBlock.Read(_StartBlock.Partition, _StartBlock.NextBlock); } if (ret.BlockNumber == _StartBlock.BlockNumber) { ret = NoobFSBlock.GetFreeBlock(part); ret.Used = true; ret.ContentSize = 0; ret.NextBlock = 0; _StartBlock.NextBlock = ret.BlockNumber; NoobFSBlock.Write(part, _StartBlock); NoobFSBlock.Write(part, ret); } if (part.NewBlockArray(1).Length - ret.ContentSize < 12) { NoobFSBlock b = NoobFSBlock.GetFreeBlock(part); if (b == null) { return(null); } ret.NextBlock = b.BlockNumber; NoobFSBlock.Write(part, ret); b.Used = true; ret = b; } return(ret); }
/// <summary> /// Creates a new NoobDirectory Object /// </summary> /// <param name="p">The partition to use</param> /// <param name="bn">The block number we want to use</param> /// <param name="pa">The path of the new directory</param> public NoobDirectory(Partition p, ulong bn, String pa) { _Path = pa; part = p; _StartBlock = NoobFSBlock.Read(p, bn); if (bn == 1 && pa == "/" && _StartBlock.Content[0] != '/') { Char[] nm = "/".ToCharArray(); for (int i = 0; i < nm.Length; i++) { _StartBlock.Content[i] = (byte)nm[i]; } _StartBlock.Used = true; _StartBlock.NextBlock = 0; NoobFSBlock.Write(p, _StartBlock); } if (!_StartBlock.Used) { _StartBlock.Used = true; String n = "New Directory"; if (pa == NoobFileSystem.separator) { _Path = ""; n = pa; } CreateEntry(part, _StartBlock, n); } }
/// <summary> /// Clears every block starting from this one /// </summary> /// <param name="StartBlock">The block to start from</param> public static void ClearBlocks(NoobFSBlock StartBlock) { NoobFSBlock b = StartBlock; while (b.NextBlock != 0) { b = NoobFSBlock.Read(b.Partition, b.NextBlock); b.Used = false; NoobFSBlock.Write(mFS.Partition, b); } }
/// <summary> /// Permits to remove a NoobFSBlock by passing it /// </summary> /// <param name="noobDirectory">The NoobFSBlock to remove</param> private void DeleteBlock(NoobFSBlock noobFSBlock) { NoobFSBlock curb = _StartBlock; while (curb.NextBlock != 0) { int index = 0; bool found = false; List <Byte> cont = new List <Byte>(); curb = NoobFSBlock.Read(_StartBlock.Partition, _StartBlock.NextBlock); while (index < curb.ContentSize) { ulong a = BitConverter.ToUInt64(curb.Content, index); Byte[] app = BitConverter.GetBytes(a); for (int i = 0; i < app.Length; i++) { cont.Add(app[i]); } index += 8; uint sep = BitConverter.ToUInt32(curb.Content, index); index += 4; if (a == noobFSBlock.BlockNumber) { app = BitConverter.GetBytes((uint)0); for (int i = 0; i < app.Length; i++) { cont.Add(app[i]); } found = true; } else { app = BitConverter.GetBytes(sep); for (int i = 0; i < app.Length; i++) { cont.Add(app[i]); } } } if (found) { curb.Content = cont.ToArray(); curb.ContentSize = (uint)cont.Count; NoobFSBlock.Write(part, curb); } } }
/// <summary> /// Creates a new NoobEntry in the current directory /// </summary> /// <param name="p">The partition where to create the new NoobEntry</param> /// <param name="b">The block to write on</param> /// <param name="name">The new NoobEntry's name</param> protected static NoobFSBlock CreateEntry(Partition p, NoobFSBlock b, String n) { if (b != null && ((!Utils.StringContains(n, InvalidChars)) || b.BlockNumber == 0)) { b.Used = true; b.NextBlock = 0; b.TotalSize = 0; Char[] nm = n.ToCharArray(); for (int i = 0; i < nm.Length; i++) { b.Content[i] = (byte)nm[i]; } if (b.BlockNumber != 0) { Utils.CopyByteToByte(BitConverter.GetBytes(Environment.DateTime.Now.TimeStamp), 0, b.Content, (int)MaxNameSize + (int)EntryInfoPosition.DateTimeCreated, 8, false); } b.Content[nm.Length] = 0; b.ContentSize = (uint)nm.Length; NoobFSBlock.Write(p, b); return(b); } return(null); }
/// <summary> /// Creates a new NoobFile to the current directory /// </summary> /// <param name="Name">The new NoobFile's name</param> public void AddFile(String Name) { NoobEntry[] dirs = GetEntries(); for (int i = 0; i < dirs.Length; i++) { if (dirs[i].Name == Name) { Helper.WriteLine("Entry with same Name already exists!"); return; } } NoobFSBlock curb = GetBlockToEdit(); NoobFSBlock newfileb = CreateEntry(part, Name); //if (newfileb != null) //{ BitConverter.GetBytes(newfileb.BlockNumber).CopyTo(curb.Content, curb.ContentSize); BitConverter.GetBytes((uint)2).CopyTo(curb.Content, curb.ContentSize + 8); curb.ContentSize += 12; NoobFSBlock.Write(part, curb); EditEntryInfo(EntryInfoPosition.DateTimeModified, Environment.DateTime.Now.TimeStamp); EditEntryInfo(EntryInfoPosition.DateTimeLastAccess, Environment.DateTime.Now.TimeStamp); //} }
/// <summary> /// Writes all the specified Bytes into the file /// </summary> /// <param name="Data">The array Byte to write into file</param> public void WriteAllBytes(Byte[] Data) { if (_StartBlock.NextBlock != 0) { NoobFileSystem.ClearBlocks(_StartBlock); _StartBlock.NextBlock = 0; NoobFSBlock.Write(NoobFileSystem.mFS.Partition, _StartBlock); } int index = 0; NoobFSBlock curb = NoobFSBlock.GetFreeBlock(NoobFileSystem.mFS.Partition); _StartBlock.NextBlock = curb.BlockNumber; NoobFSBlock.Write(part, _StartBlock); do { Byte[] arr = new Byte[NoobFSBlock.MaxBlockContentSize]; index = Utils.CopyByteToByte(Data, index, arr, 0, arr.Length); curb.Used = true; curb.Content = arr; if (index != Data.Length) { NoobFSBlock b = NoobFSBlock.GetFreeBlock(NoobFileSystem.mFS.Partition); curb.NextBlock = b.BlockNumber; curb.ContentSize = (uint)arr.Length; NoobFSBlock.Write(NoobFileSystem.mFS.Partition, curb); curb = b; } else { curb.ContentSize = (uint)(Data.Length % arr.Length); NoobFSBlock.Write(NoobFileSystem.mFS.Partition, curb); } }while (index != Data.Length); EditEntryInfo(EntryInfoPosition.DateTimeModified, Environment.DateTime.Now.TimeStamp); EditEntryInfo(EntryInfoPosition.DateTimeLastAccess, Environment.DateTime.Now.TimeStamp); }