/// <summary>
/// Listens to the shared connection for incoming data.
/// </summary>
protected void ListenSharedConn()
{
IncomingRequestArgs requestArgs = new IncomingRequestArgs();
byte[] buffer = new byte[InBufferLenght];
while (!terminated)
{
try
{
lock (sharedConn)
{
if (sharedConn.Connected && sharedConn.TcpClient.Available > 0 &&
!ReceiveIncomingRequest(LineContext.SelectDevices(), sharedConn, requestArgs))
{
sharedConn.ClearNetStream(buffer);
}
}
Thread.Sleep(SlaveThreadDelay);
}
catch (Exception ex)
{
Log.WriteException(ex, Locale.IsRussian ?
"Ошибка при приёме данных через общее соединение" :
"Error receiving data over a shared connection");
Thread.Sleep(ScadaUtils.ThreadDelay);
}
}
}
/// <summary>
/// Listens to the individual connections for incoming data.
/// </summary>
protected void ListenIndividualConn()
{
IncomingRequestArgs requestArgs = new IncomingRequestArgs();
byte[] buffer = new byte[InBufferLenght];
while (!terminated)
{
try
{
foreach (TcpConnection conn in indivConnList)
{
lock (conn)
{
if (conn.Connected && conn.TcpClient.Available > 0 &&
!ReceiveIncomingRequest(conn.BoundDevices, conn, requestArgs))
{
sharedConn.ClearNetStream(buffer);
}
}
}
Thread.Sleep(SlaveThreadDelay);
}
catch (Exception ex)
{
Log.WriteException(ex, Locale.IsRussian ?
"Ошибка при приёме данных через индивидуальное соединение" :
"Error receiving data over an individual connection");
Thread.Sleep(ScadaUtils.ThreadDelay);
}
}
}
protected volatile bool terminated; // necessary to stop the thread
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
public SerialChannelLogic(ILineContext lineContext, ChannelConfig channelConfig)
: base(lineContext, channelConfig)
{
options = new SerialChannelOptions(channelConfig.CustomOptions);
requestArgs = new IncomingRequestArgs();
serialConn = null;
thread = null;
terminated = false;
}
protected volatile bool terminated; // necessary to stop receiving data
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
public UdpChannelLogic(ILineContext lineContext, ChannelConfig channelConfig)
: base(lineContext, channelConfig)
{
options = new UdpChannelOptions(channelConfig.CustomOptions);
requestArgs = new IncomingRequestArgs();
deviceLock = new object();
masterConn = null;
slaveConn = null;
deviceDict = null;
terminated = false;
}
protected volatile bool terminated; // necessary to stop the thread
/// <summary>
/// Initializes a new instance of the class.
/// </summary>
public TcpServerChannel(ILineContext lineContext, ChannelConfig channelConfig)
: base(lineContext, channelConfig)
{
options = new TcpServerChannelOptions(channelConfig.CustomOptions);
requestArgs = new IncomingRequestArgs();
inBuf = new byte[InBufferLenght];
connList = new List <TcpConnection>();
tcpListener = null;
currentConn = null;
deviceDict = null;
thread = null;
terminated = false;
}
/// <summary>
/// Processes the incoming request just read for the specified device.
/// </summary>
protected bool ProcessIncomingRequest(DeviceLogic deviceLogic, byte[] buffer, int offset, int count,
IncomingRequestArgs requestArgs)
{
try
{
deviceLogic.ProcessIncomingRequest(buffer, offset, count, requestArgs);
return(!requestArgs.HasError);
}
catch (Exception ex)
{
Log.WriteException(ex, Locale.IsRussian ?
"Ошибка при обработке входящего запроса КП {0}" :
"Error processing incoming request for the device {0}", deviceLogic.Title);
return(false);
}
}
/// <summary>
/// Receives an unread incoming request for the specified device.
/// </summary>
protected bool ReceiveIncomingRequest(DeviceLogic deviceLogic, Connection conn,
IncomingRequestArgs requestArgs)
{
try
{
deviceLogic.ReceiveIncomingRequest(conn, requestArgs);
return(!requestArgs.HasError);
}
catch (Exception ex)
{
Log.WriteException(ex, Locale.IsRussian ?
"Ошибка при приёме входящего запроса КП {0}" :
"Error receiving incoming request for the device {0}", deviceLogic.Title);
return(false);
}
}
/// <summary>
/// Processes the incoming request just read for specified devices.
/// </summary>
protected bool ProcessIncomingRequest(IEnumerable <DeviceLogic> devices, byte[] buffer, int offset, int count,
IncomingRequestArgs requestArgs)
{
requestArgs.SetToDefault();
foreach (DeviceLogic deviceLogic in devices)
{
ProcessIncomingRequest(deviceLogic, buffer, offset, count, requestArgs);
if (!requestArgs.NextDevice)
{
break;
}
}
return(!requestArgs.HasError);
}
/// <summary>
/// Receives an unread incoming request for specified devices.
/// </summary>
protected bool ReceiveIncomingRequest(IEnumerable <DeviceLogic> devices, Connection conn,
IncomingRequestArgs requestArgs)
{
requestArgs.SetToDefault();
foreach (DeviceLogic deviceLogic in devices)
{
ReceiveIncomingRequest(deviceLogic, conn, requestArgs);
if (!requestArgs.NextDevice)
{
break;
}
}
return(!requestArgs.HasError);
}
