private bool ProcessPDataTF(PDataTF pdu) { try { byte pcid = 0; foreach (PDV pdv in pdu.PDVs) { pcid = pdv.PCID; if (pdv.IsCommand) { if (_dimse.CommandData == null) _dimse.CommandData = new ChunkStream(); _dimse.CommandData.AddChunk(pdv.Value); if (_dimse.Command == null) { _dimse.Command = new DicomAttributeCollection(0x00000000, 0x0000FFFF); } if (_dimse.CommandReader == null) { _dimse.CommandReader = new DicomStreamReader(_dimse.CommandData) { TransferSyntax = TransferSyntax.ImplicitVrLittleEndian, Dataset = _dimse.Command }; } DicomReadStatus stat = _dimse.CommandReader.Read(null, DicomReadOptions.UseDictionaryForExplicitUN); if (stat == DicomReadStatus.UnknownError) { Platform.Log(LogLevel.Error, "Unexpected parsing error when reading command group elements."); return false; } _assoc.TotalBytesRead += (UInt64) pdv.PDVLength - 6; if (DimseMessageReceiving != null) DimseMessageReceiving(_assoc, pcid); if (pdv.IsLastFragment) { if (stat == DicomReadStatus.NeedMoreData) { Platform.Log(LogLevel.Error, "Unexpected end of StreamReader. More data needed ({0} bytes, last tag read {1}) after reading last PDV fragment.", _dimse.CommandReader.BytesNeeded, _dimse.CommandReader.LastTagRead.ToString()); return false; } _dimse.CommandData = null; _dimse.CommandReader = null; bool isLast = true; if (_dimse.Command.Contains(DicomTags.DataSetType)) { if (_dimse.Command[DicomTags.DataSetType].GetUInt16(0, 0x0) != 0x0101) isLast = false; } if (isLast) { if (_dimse.IsNewDimse) { OnReceiveDimseBegin(pcid, _dimse.Command, _dimse.Dataset); } OnReceiveDimseProgress(pcid, _dimse.Command, _dimse.Dataset); bool ret = OnReceiveDimse(pcid, _dimse.Command, _dimse.Dataset); if (!ret) Platform.Log(LogLevel.Error, "Error with OnReceiveDimse"); LogSendReceive(true, _dimse.Command, _dimse.Dataset); //_assoc.TotalBytesRead += (UInt64)total; _dimse = null; return ret; } } } else { if (_dimse.DatasetData == null) _dimse.DatasetData = new ChunkStream(); _dimse.DatasetData.AddChunk(pdv.Value); if (_dimse.Dataset == null) { _dimse.Dataset = new DicomAttributeCollection(0x00040000, 0xFFFFFFFF); } if (_dimse.DatasetReader == null) { _dimse.DatasetReader = new DicomStreamReader(_dimse.DatasetData) { TransferSyntax = _assoc.GetAcceptedTransferSyntax(pdv.PCID), Dataset = _dimse.Dataset }; } DicomReadStatus stat = _dimse.DatasetReader.Read(null, DicomReadOptions.UseDictionaryForExplicitUN); if (stat == DicomReadStatus.UnknownError) { Platform.Log(LogLevel.Error, "Unexpected parsing error when reading DataSet."); return false; } _assoc.TotalBytesRead += (UInt64) pdv.PDVLength - 6; if (DimseMessageReceiving != null) DimseMessageReceiving(_assoc, pcid); if (pdv.IsLastFragment) { if (stat == DicomReadStatus.NeedMoreData) { Platform.Log(LogLevel.Error, "Unexpected end of StreamReader. More data needed ({0} bytes, last tag read {1}) after reading last PDV fragment.", _dimse.DatasetReader.BytesNeeded, _dimse.DatasetReader.LastTagRead.ToString()); return false; } _dimse.CommandData = null; _dimse.CommandReader = null; LogSendReceive(true, _dimse.Command, _dimse.Dataset); if (_dimse.IsNewDimse) { OnReceiveDimseBegin(pcid, _dimse.Command, _dimse.Dataset); } OnReceiveDimseProgress(pcid, _dimse.Command, _dimse.Dataset); bool ret = OnReceiveDimse(pcid, _dimse.Command, _dimse.Dataset); if (!ret) Platform.Log(LogLevel.Error, "Error with OnReceiveDimse"); _dimse = null; return ret; } } } if (_dimse.IsNewDimse) { OnReceiveDimseBegin(pcid, _dimse.Command, _dimse.Dataset); _dimse.IsNewDimse = false; } else { OnReceiveDimseProgress(pcid, _dimse.Command, _dimse.Dataset); } return true; } catch (Exception e) { //do something here! Platform.Log(LogLevel.Error, e, "Unexpected exception processing P-DATA PDU"); return false; } }
private bool ProcessNextPDU() { var raw = new RawPDU(_network); if (raw.Type == 0x04) { if (_dimse == null) { _dimse = new DcmDimseInfo(); _assoc.TotalDimseReceived++; } } raw.ReadPDU(); if (_multiThreaded) { _processingQueue.Enqueue(delegate { ProcessRawPDU(raw); }); return true; } return ProcessRawPDU(raw); }