/// <summary>
/// Gets a buffer from a pool and initiates it. After filling it up with the data can be send to the data provider remote
/// unit by the WriteData.
/// </summary>
/// <param name="block">Data description allowing to prepare appropriate header of the frame.</param>
/// <param name="station">Address of the remote station connected to the common field bus. –1 if not applicable.
/// </param>
/// <returns>A buffer ready to be filled up with the data and write down to the destination – remote station.
/// </returns>
IWriteValue IApplicationLayerMaster.GetEmptyWriteDataBuffor(IBlockDescription block, int station)
{
lock (this)
{
NULL_message data = (NULL_message)pool.GetEmptyISesDBuffer();
data.SetBlockDescription(station, block);
return((IWriteValue)data);
}
}
private TFrameEndSignalRes TransmitFrame(out byte[] buff, ICommunicationLayer ComPortCli)
{
buff = get_buffor();
NULL_message message = pool.GetEmptyISesDBuffer();
message.userDataLength = (ushort)buff.Length;
for (int i = 0; i < buff.Length; i++)
{
message.WriteByte(buff[i]);
}
// czas na wyslanie ramki:
ComPortCli.Flush();
string msg = "sending frame: " + buff.Length.ToString() + " size";
m_TraceSource.TraceVerbose(382, "TransmitFrame", msg);
TFrameEndSignalRes lastRes = ComPortCli.FrameEndSignal(message);
m_TraceSource.TraceVerbose(382, "TransmitFrame", "Frame has been sent");
message.ReturnEmptyEnvelope();
return(lastRes);
}