public void Send(NodeBase[] Data, CommAddress Address, ActionRequested Action)
{
WriteQueueElement el = new WriteQueueElement(Data, Address, Action);
SendQueue.Enqueue(el);
sendQueueWritten.Set();
}
private void WorkerThreadProc(object obj)
{
Scsm_MMS_Worker self = (Scsm_MMS_Worker)obj;
iecs = new Iec61850State();
iecs.hostname = self.isoParameters.hostname; // due to tcps inheritance
iecs.port = self.isoParameters.port; // due to tcps inheritance
iecs.cp = self.isoParameters;
iecs.logger = Logger.getLogger();
_env.winMgr.BindToCapture(iecs);
_waitHandles[0] = iecs.connectDone;
_waitHandles[1] = iecs.receiveDone;
_waitHandles[2] = iecs.sendDone;
_waitHandles[3] = new ManualResetEvent(false); // end thread
_waitHandles[4] = iecs.sendQueueWritten;
//DateTime tout = null;
CommAddress ad = new CommAddress();
DateTime IdentifyTimeoutBase = new DateTime();
TimeSpan IdentifyTimeout = new TimeSpan(0, 0, 5); // 5 sec
while (self._run)
{
switch (iecs.tstate)
{
case TcpProtocolState.TCP_STATE_START:
iecs.logger.LogInfo("[TCP_STATE_START]");
iecs.kstate = IsoTpktState.TPKT_RECEIVE_START;
iecs.ostate = IsoProtocolState.OSI_STATE_START;
iecs.istate = Iec61850lStateEnum.IEC61850_STATE_START;
TcpRw.StartClient(iecs);
break;
case TcpProtocolState.TCP_STATE_SHUTDOWN:
iecs.logger.LogInfo("[TCP_STATE_SHUTDOWN]");
Stop();
Thread.Sleep(10000);
iecs.tstate = TcpProtocolState.TCP_STATE_START;
break;
case TcpProtocolState.TCP_CONNECTED:
switch (iecs.ostate)
{
case IsoProtocolState.OSI_CONNECT_COTP:
iecs.logger.LogInfo("[OSI_CONNECT_COTP]");
iecs.ostate = IsoProtocolState.OSI_CONNECT_COTP_WAIT;
iecs.iso.SendCOTPSessionInit(iecs);
break;
case IsoProtocolState.OSI_CONNECT_PRES:
iecs.logger.LogInfo("[OSI_CONNECT_PRES]");
// This cannot be before Send, but is issued inside Send chain before TCP send
// iecs.ostate = IsoProtocolState.OSI_CONNECT_PRES_WAIT;
iecs.mms.SendInitiate(iecs);
break;
case IsoProtocolState.OSI_CONNECTED:
switch (iecs.istate)
{
case Iec61850lStateEnum.IEC61850_STATE_START:
if (iecs.DataModel.ied.Identify)
{
iecs.logger.LogInfo("[IEC61850_STATE_START] (Send IdentifyRequest)");
iecs.istate = Iec61850lStateEnum.IEC61850_CONNECT_MMS_WAIT;
iecs.mms.SendIdentify(iecs);
IdentifyTimeoutBase = DateTime.UtcNow;
}
else
{
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_DOMAIN;
}
break;
case Iec61850lStateEnum.IEC61850_CONNECT_MMS_WAIT:
// If we wait for Identify response too long, continue without it
if (DateTime.UtcNow.Subtract(IdentifyTimeout).CompareTo(IdentifyTimeoutBase) > 0)
{
// Timeout expired
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_DOMAIN;
iecs.logger.LogWarning("MMS Identify message not supported by server, although declared in ServicesSupportedCalled bitstring");
}
break;
case Iec61850lStateEnum.IEC61850_READ_NAMELIST_DOMAIN:
iecs.logger.LogDebug("[IEC61850_READ_NAMELIST_DOMAIN]");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_DOMAIN_WAIT;
iecs.mms.SendGetNameListDomain(iecs);
break;
case Iec61850lStateEnum.IEC61850_READ_NAMELIST_VAR:
iecs.logger.LogDebug("[IEC61850_READ_NAMELIST_VAR]");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_VAR_WAIT;
iecs.mms.SendGetNameListVariables(iecs);
break;
case Iec61850lStateEnum.IEC61850_READ_ACCESSAT_VAR:
iecs.logger.LogDebug("[IEC61850_READ_ACCESSAT_VAR]");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_ACCESSAT_VAR_WAIT;
iecs.mms.SendGetVariableAccessAttributes(iecs);
break;
case Iec61850lStateEnum.IEC61850_READ_MODEL_DATA:
if (_env.dataReadOnStartup)
{
iecs.logger.LogDebug("[IEC61850_READ_MODEL_DATA]");
CommAddress adr = new CommAddress();
adr.Domain = null;
adr.Variable = null;
adr.owner = null;
NodeBase[] data = new NodeBase[1];
// Issue reads by FC level
data[0] = iecs.DataModel.ied.GetActualChildNode().GetActualChildNode().GetActualChildNode();
WriteQueueElement wqel = new WriteQueueElement(data, adr, ActionRequested.Read);
iecs.istate = Iec61850lStateEnum.IEC61850_READ_MODEL_DATA_WAIT;
iecs.mms.SendRead(iecs, wqel);
}
else
{
iecs.logger.LogDebug("[IEC61850_READ_MODEL_DATA] - Skipped due to a presetting");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_NAMED_VARIABLE_LIST;
}
break;
case Iec61850lStateEnum.IEC61850_READ_NAMELIST_NAMED_VARIABLE_LIST:
iecs.logger.LogDebug("[IEC61850_READ_NAMELIST_NAMED_VARIABLE_LIST]");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_NAMELIST_NAMED_VARIABLE_LIST_WAIT;
iecs.mms.SendGetNameListNamedVariableList(iecs);
break;
case Iec61850lStateEnum.IEC61850_READ_ACCESSAT_NAMED_VARIABLE_LIST:
iecs.logger.LogDebug("[IEC61850_READ_ACCESSAT_NAMED_VARIABLE_LIST]");
iecs.istate = Iec61850lStateEnum.IEC61850_READ_ACCESSAT_NAMED_VARIABLE_LIST_WAIT;
if (iecs.mms.SendGetNamedVariableListAttributes(iecs) != 0)
{
// No VarLists
iecs.logger.LogInfo("Init end: [IEC61850_FREILAUF]");
iecs.istate = Iec61850lStateEnum.IEC61850_MAKEGUI;
}
break;
case Iec61850lStateEnum.IEC61850_MAKEGUI:
iecs.logger.LogDebug("[IEC61850_MAKEGUI]");
iecs.DataModel.BuildIECModelFromMMSModel();
self._env.winMgr.MakeIedTree(iecs);
self._env.winMgr.MakeIecTree(iecs);
self._env.winMgr.mainWindow.Set_iecf(iecs);
iecs.istate = Iec61850lStateEnum.IEC61850_FREILAUF;
break;
case Iec61850lStateEnum.IEC61850_FREILAUF:
// File service handling
switch (iecs.fstate)
{
case FileTransferState.FILE_DIRECTORY:
if (iecs.lastFileOperationData[0] is NodeIed)
{
self._env.winMgr.MakeFileTree(iecs);
}
iecs.fstate = FileTransferState.FILE_NO_ACTION;
break;
case FileTransferState.FILE_OPENED:
case FileTransferState.FILE_READ:
// issue a read
iecs.Send(iecs.lastFileOperationData, ad, ActionRequested.ReadFile);
iecs.fstate = FileTransferState.FILE_NO_ACTION;
break;
case FileTransferState.FILE_COMPLETE:
// issue a close
// file can be saved from context menu
iecs.Send(iecs.lastFileOperationData, ad, ActionRequested.CloseFile);
iecs.fstate = FileTransferState.FILE_NO_ACTION;
break;
}
break;
}
break;
case IsoProtocolState.OSI_STATE_SHUTDOWN:
TcpRw.StopClient(iecs);
break;
}
break;
default:
break;
}
int waitres = WaitHandle.WaitAny(_waitHandles, 500);
switch (waitres)
{
case 0: // connect
if (iecs.ostate == IsoProtocolState.OSI_STATE_START)
{
iecs.ostate = IsoProtocolState.OSI_CONNECT_COTP;
}
iecs.connectDone.Reset();
TcpRw.Receive(iecs); // issue a Receive call
break;
case 1: // receive
iecs.receiveDone.Reset();
TcpRw.Receive(iecs); // issue a new Receive call
break;
case 2: // send
iecs.sendDone.Reset();
break;
case 3: // endthread
self._run = false;
break;
case 4: // send data
iecs.sendQueueWritten.Reset();
Logger.getLogger().LogDebug("SendQueue Waiting for lock in Worker!");
WriteQueueElement el;
while (iecs.SendQueue.TryDequeue(out el))
{
switch (el.Action)
{
case ActionRequested.Write:
iecs.mms.SendWrite(iecs, el);
break;
case ActionRequested.WriteAsStructure:
iecs.mms.SendWriteAsStructure(iecs, el);
break;
case ActionRequested.Read:
if (el.Data[0] is NodeVL)
{
iecs.mms.SendReadVL(iecs, el);
}
else
{
iecs.mms.SendRead(iecs, el);
}
break;
case ActionRequested.DefineNVL:
iecs.mms.SendDefineNVL(iecs, el);
break;
case ActionRequested.DeleteNVL:
iecs.mms.SendDeleteNVL(iecs, el);
break;
case ActionRequested.GetDirectory:
iecs.mms.SendFileDirectory(iecs, el);
break;
case ActionRequested.OpenFile:
iecs.mms.SendFileOpen(iecs, el);
break;
case ActionRequested.ReadFile:
iecs.mms.SendFileRead(iecs, el);
break;
case ActionRequested.CloseFile:
iecs.mms.SendFileClose(iecs, el);
break;
case ActionRequested.FileDelete:
iecs.mms.SendFileDelete(iecs, el);
break;
}
}
break;
case WaitHandle.WaitTimeout:
break;
}
}
TcpRw.StopClient(iecs);
_env.winMgr.UnBindFromCapture(iecs);
if (restart_allowed)
{
restart_allowed = false;
try
{
_env.winMgr.mainWindow.BeginInvoke((Action) delegate
{
_env.winMgr.mainWindow.Restart();
});
}
catch { }
}
}
