public override void Cleanup( Object FileNode0, Object FileDesc, String FileName, UInt32 Flags) { FileNode FileNode = (FileNode)FileNode0; FileNode MainFileNode = null != FileNode.MainFileNode ? FileNode.MainFileNode : FileNode; if (0 != (Flags & CleanupSetArchiveBit)) { if (0 == (MainFileNode.FileInfo.FileAttributes & (UInt32)FileAttributes.Directory)) { MainFileNode.FileInfo.FileAttributes |= (UInt32)FileAttributes.Archive; } } if (0 != (Flags & (CleanupSetLastAccessTime | CleanupSetLastWriteTime | CleanupSetChangeTime))) { UInt64 SystemTime = (UInt64)DateTime.Now.ToFileTimeUtc(); if (0 != (Flags & CleanupSetLastAccessTime)) { MainFileNode.FileInfo.LastAccessTime = SystemTime; } if (0 != (Flags & CleanupSetLastWriteTime)) { MainFileNode.FileInfo.LastWriteTime = SystemTime; } if (0 != (Flags & CleanupSetChangeTime)) { MainFileNode.FileInfo.ChangeTime = SystemTime; } } if (0 != (Flags & CleanupSetAllocationSize)) { UInt64 AllocationUnit = MEMFS_SECTOR_SIZE * MEMFS_SECTORS_PER_ALLOCATION_UNIT; UInt64 AllocationSize = (FileNode.FileInfo.FileSize + AllocationUnit - 1) / AllocationUnit * AllocationUnit; SetFileSizeInternal(FileNode, AllocationSize, true); } if (0 != (Flags & CleanupDelete) && !FileNodeMap.HasChild(FileNode)) { List <String> StreamFileNames = new List <String>(FileNodeMap.GetStreamFileNames(FileNode)); foreach (String StreamFileName in StreamFileNames) { FileNode StreamNode = FileNodeMap.Get(StreamFileName); if (null == StreamNode) { continue; /* should not happen */ } FileNodeMap.Remove(StreamNode); } FileNodeMap.Remove(FileNode); } }
public override Boolean GetStreamEntry( Object FileNode0, Object FileDesc, ref Object Context, out String StreamName, out UInt64 StreamSize, out UInt64 StreamAllocationSize) { FileNode FileNode = (FileNode)FileNode0; IEnumerator <String> Enumerator = (IEnumerator <String>)Context; if (null == Enumerator) { if (null != FileNode.MainFileNode) { FileNode = FileNode.MainFileNode; } List <String> StreamFileNames = new List <String>(); if (0 == (FileNode.FileInfo.FileAttributes & (UInt32)FileAttributes.Directory)) { StreamFileNames.Add(FileNode.FileName); } StreamFileNames.AddRange(FileNodeMap.GetStreamFileNames(FileNode)); Context = Enumerator = StreamFileNames.GetEnumerator(); } while (Enumerator.MoveNext()) { String FullFileName = Enumerator.Current; FileNode StreamFileNode = FileNodeMap.Get(FullFileName); if (null != StreamFileNode) { int Index = FullFileName.IndexOf(':'); if (0 > Index) { StreamName = ""; } else { StreamName = FullFileName.Substring(Index + 1); } StreamSize = StreamFileNode.FileInfo.FileSize; StreamAllocationSize = StreamFileNode.FileInfo.AllocationSize; return(true); } } StreamName = default(String); StreamSize = default(UInt64); StreamAllocationSize = default(UInt64); return(false); }
public override Int32 Overwrite( Object FileNode0, Object FileDesc, UInt32 FileAttributes, Boolean ReplaceFileAttributes, UInt64 AllocationSize, out FileInfo FileInfo) { FileInfo = default(FileInfo); FileNode FileNode = (FileNode)FileNode0; Int32 Result; List <String> StreamFileNames = new List <String>(FileNodeMap.GetStreamFileNames(FileNode)); foreach (String StreamFileName in StreamFileNames) { FileNode StreamNode = FileNodeMap.Get(StreamFileName); if (null == StreamNode) { continue; /* should not happen */ } if (0 == StreamNode.OpenCount) { FileNodeMap.Remove(StreamNode); } } Result = SetFileSizeInternal(FileNode, AllocationSize, true); if (0 > Result) { return(Result); } if (ReplaceFileAttributes) { FileNode.FileInfo.FileAttributes = FileAttributes | (UInt32)System.IO.FileAttributes.Archive; } else { FileNode.FileInfo.FileAttributes |= FileAttributes | (UInt32)System.IO.FileAttributes.Archive; } FileNode.FileInfo.FileSize = 0; FileNode.FileInfo.LastAccessTime = FileNode.FileInfo.LastWriteTime = FileNode.FileInfo.ChangeTime = (UInt64)DateTime.Now.ToFileTimeUtc(); FileInfo = FileNode.GetFileInfo(); return(STATUS_SUCCESS); }