Example #1
0
        internal void UpdateState(string directory, ref FileChangeList changes, ref FileSystemEntry file)
        {
            int index = _state.IndexOf(directory, file.FileName);

            if (index == -1) // file added
            {
                string path = file.FileName.ToString();

                changes.AddAdded(directory, path.ToString());

                var newFileState = new FileState(directory, path);
                newFileState.LastWriteTimeUtc = file.LastWriteTimeUtc;
                newFileState.Length           = file.Length;
                newFileState._version         = _version;
                _state.Add(directory, path, newFileState);
                return;
            }

            _state.Values[index]._version = _version;

            var previousState = _state.Values[index];

            if (file.LastWriteTimeUtc != previousState.LastWriteTimeUtc || file.Length != previousState.Length)
            {
                changes.AddChanged(directory, previousState.Path);
                _state.Values[index].LastWriteTimeUtc = file.LastWriteTimeUtc;
                _state.Values[index].Length           = file.Length;
            }
        }
Example #2
0
        // This function walks all watched files, collects changes, and updates state
        private FileChangeList ComputeChangesAndUpdateState()
        {
            _version++;
            var changes = new FileChangeList();

            WIN32_FIND_DATAW fileData = new WIN32_FIND_DATAW();

            unsafe
            {
                WIN32_FIND_DATAW *pFileData = &fileData;

                for (int index = 0; index < _directories.Count; index++)
                {
                    var directory = _directories[index];

                    var handle = DllImports.FindFirstFileExW(directory, FINDEX_INFO_LEVELS.FindExInfoBasic, pFileData, FINDEX_SEARCH_OPS.FindExSearchNameMatch, IntPtr.Zero, DllImports.FIND_FIRST_EX_LARGE_FETCH);
                    if (handle == DllImports.INVALID_HANDLE_VALUE)   // directory got deleted
                    {
                        if (Tracing.Switch.ShouldTrace(TraceEventType.Information))
                        {
                            Tracing.TraceEvent(TraceEventType.Warning, 2, "Directory could not be opened {0}", directory);
                        }
                        _directories.Remove(directory);
                        continue;
                    }

                    try
                    {
                        do
                        {
                            if (IsSpecial(fileData.cFileName))
                            {
                                continue;
                            }
                            if (!IsWatched(fileData.cFileName))
                            {
                                continue;
                            }
                            UpdateState(directory, ref changes, ref fileData, fileData.cFileName);
                        }while (DllImports.FindNextFileW(handle, pFileData));
                    }
                    finally
                    {
                        DllImports.FindClose(handle);
                    }
                }
            }

            foreach (var value in _state)
            {
                if (value._version != _version)
                {
                    changes.AddRemoved(value.Directory, value.Path);
                    _state.Remove(value.Directory, value.Path);
                }
            }

            return(changes);
        }
Example #3
0
        private unsafe void UpdateState(string directory, ref FileChangeList changes, ref WIN32_FIND_DATAW file, char *filename)
        {
            int index = _state.IndexOf(directory, filename);

            if (index == -1) // file added
            {
                string path = new string(filename);

                if (file.IsDirectory)
                {
                    if (_includeSubdirectories)
                    {
                        _directories.Add(Path.Combine(directory.TrimEnd('*'), path, "*"));
                    }
                }

                changes.AddAdded(directory, path);

                var newFileState = new FileState(directory, path);
                newFileState.LastWrite = file.LastWrite;
                newFileState.FileSize  = file.FileSize;
                newFileState._version  = _version;
                _state.Add(directory, path, newFileState);
                return;
            }

            _state.Values[index]._version = _version;

            if (file.IsDirectory)
            {
                return;
            }

            var previousState = _state.Values[index];

            if (file.LastWrite != previousState.LastWrite || file.FileSize != previousState.FileSize)
            {
                changes.AddChanged(directory, previousState.Path);
                _state.Values[index].LastWrite = file.LastWrite;
                _state.Values[index].FileSize  = file.FileSize;
            }
        }