/// <summary>
/// This is synchronised TCP Recive method, received data will be only written into buffer if received bytes contains End Of Message string.
/// </summary>
/// <param name="iTimeout">Determines, how long in [ms] method can be executed, if iTimeout is lower then 0, method will not be terminated. </param>
private void Receive(int timeout = -1)
{
DateTime DTStart = DateTime.Now;
TickTime TTStart = TickTime.Now;
bool bTimeout = false;
bool bDataFound = false;
byte[] baData;
string sData = sDataBuffer;
string sMessage = null;
string sMessageResidue = null;
int iRecivedCount;
while (!bTimeout && !bDataFound)
{
if (timeout > 0 && TickTime.Timeout(TTStart, timeout, TickTime.Unit.ms))
{
bTimeout = true;
}
baData = new byte[1024];
iRecivedCount = SLClient.Receive(baData);
sData += Encoding.ASCII.GetString(baData, 0, iRecivedCount);
sMessage = sData.ExtractTag(TcpAsyncCommon.SOM, TcpAsyncCommon.EOM, out sMessageResidue);
if (sMessage == null)
{
continue;
}
else
{
bDataFound = true;
}
}
if (!bDataFound)
{
sDataBuffer = sData;
return;
}
sDataBuffer = sMessageResidue;
sData = sMessage;
//sData.Replace(TcpAsyncClient.SOM, "");
//sData.Replace(TcpAsyncClient.EOM, "");
sData.Replace(@"\\", @"\");
DBReceive.Set(sData);
}
/// <summary>
/// This is synchronised TCP Recive method, received data will be only written into buffer if received bytes contains End Of Message string.
/// </summary>
/// <param name="iTimeout">Determines, how long in [ms] method can be executed, if iTimeout is lower then 0, method will not be terminated. </param>
private void Receive(int iTimeout = -1)
{
DateTime DTStart = DateTime.Now;
bool bTimeout = false;
bool bDataFound = false;
byte[] baData;
string sData = sDataBuffer;
string sMessage = null;
string sMessageResidue = null;
int iRecivedCount;
while (!bTimeout && !bDataFound)
{
if (iTimeout > 0 && (DateTime.Now - DTStart).TotalMilliseconds > iTimeout)
{
bTimeout = true;
}
baData = new byte[1024];
iRecivedCount = SLClient.Receive(baData);
sData += Encoding.ASCII.GetString(baData, 0, iRecivedCount);
sMessage = Abbreviate.String.Extract(sData, TcpAsyncCommon.SOM, TcpAsyncCommon.EOM, out sMessageResidue);
if (sMessage == null)
{
continue;
}
else
{
bDataFound = true;
}
}
if (!bDataFound)
{
sDataBuffer = sData;
return;
}
sDataBuffer = sMessageResidue;
sData = sMessage;
//sData.Replace(TcpAsyncClient.SOM, "");
//sData.Replace(TcpAsyncClient.EOM, "");
sData.Replace(@"\\", @"\");
DBReceive.Set(sData);
}
private bool Send()
{
byte[] data;
if (SLClient == null ||
DBSend == null ||
!SLClient.Connected ||
DBSend.IsAllRead ||
!DBSend.Read(out data))
{
return(false);
}
byte[] result_data = TcpAsyncCommon.CreatePacket(data, PacketMode);// result.ToArray();
if (result_data.IsNullOrEmpty())
{
return(false);
}
int sent = 0;
int size = result_data.Length;
SendTimeout.Reset();
do
{
int packet = size - sent;
if (packet > TcpAsyncServer.PacketSizeTCP)
{
packet = TcpAsyncServer.PacketSizeTCP;
}
try
{
sent += SLClient.Send(result_data, sent, packet, SocketFlags.None);
//Thread.Sleep(1);
}
catch (Exception ex)
{
Exceptions.Write(ex);
this.StopClient();
return(false);
}
if (SendTimeout.IsTriggered)
{
return(false);
}
}while (sent < size);
return(true);
}
public void StopClient()
{
try
{
if (SLClient == null)
{
return;
}
SLClient.Shutdown(SocketShutdown.Both);
SLClient.Close();
SLClient = null;
}
catch
{
}
}
public void StopClient()
{
try
{
if (SLClient == null)
{
return;
}
SLClient.Shutdown(SocketShutdown.Both);
SLClient.Close();
SLClient = null;
}
catch (Exception ex)
{
ex.ToOutput();
}
}
public void Stop()
{
TimrMain.Enabled = false;
try
{
if (SLClient == null)
{
return;
}
SLClient.Shutdown(SocketShutdown.Both);
SLClient.Close();
}
catch
{
}
SLClient = null;
}
private bool Send()
{
if (!SLClient.Connected || !DBSend.IsDataAvalaible)
{
return(false);
}
string sData = DBSend.Get(false); //Don't increment data, becouse it is not certain at this point, if it will be send
if (sData == null)
{
return(false);
}
sData.Replace(@"\", @"\\");
sData = sData + TcpAsyncCommon.EOM;
byte[] baData = Encoding.ASCII.GetBytes(sData);
if (baData.Length > 1024)
{
throw new Exception("Exception in Send() method, packet size is to large.");
}
try
{
SLClient.Send(baData);
}
catch
{
return(false);
}
DBSend.IndexerIcrement(); //Increment indexer, becouse data was successfully send.
return(true);
}
public bool IsConnected()
{
return(SLClient.IsConnected());
}
private bool Receive()
{
List <byte> result_buffer = new List <byte>();
result_buffer.AddToEnd(residue);
int received = 0;
int received_now = 0;
while (SLClient.IsAvailableToRead())
{
try
{
received_now = 0;
received_now = SLClient.Receive(buffer_input, 0, buffer_input.Length, SocketFlags.None);
//Thread.Sleep(1);
}
catch (Exception ex)
{
Exceptions.Write(ex);
this.StopClient();
break;
}
if (received_now > 0)
{
result_buffer.AddRange(buffer_input.Take(received_now));
received += received_now;
}
else
{
break;
}
}
var packet = result_buffer.GetArray();
if (packet.IsNullOrEmpty())
{
residue = null;
return(false);
}
int offset;
int length;
byte compression;
if (!TcpAsyncCommon.RecreatePacket(ref packet, out offset, out length, out compression, PacketMode) || (offset + length) > packet.Length)
{
residue = packet;
return(false);
}
byte[] result = packet.SubArray(offset, length);
//+ 1 represents EndByte
residue = packet.SubArray((offset + length + 1), packet.Length - (offset + length + 1));
if (result.IsNullOrEmpty())
{
return(false);
}
if (compression == 1)
{
result = result.UnGZip();
}
DBReceive.Write(result);
return(true);
}
