private static void sendAck(NetworkStream stream)
{
byte[] ackMsg = System.Text.Encoding.UTF8.GetBytes(
"\x0BMSH|^~\\&|||EPIC|EPICADT|" +
DateTime.Now.Ticks + "||ACK||D|2.5\r" +
"MSA|AA|\x1C\x0D");
stream.Write(ackMsg, 0, ackMsg.Length);
MLog.MsgCapture("Sent : " + Tool.ByteArrayToString(ackMsg));
}
//
// ______ __ ____ ____ ___ __ ___ ____ __ __ ___ ____
// | T / ]| \ | \ / _] / ] / _]l j| T | / _]| \
// | | / / | o ) | D ) / [_ / / / [_ | T | | | / [_ | D )
// l_j l_j/ / | _/ | / Y _] / / Y _] | | | | |Y _]| /
// | | / \_ | | | \ | [_ / \_ | [_ | | l : !| [_ | \
// | | \ || | | . Y| T\ || T j l \ / | T| . Y
// l__j \____jl__j l__j\_jl_____j \____jl_____j|____j \_/ l_____jl__j\_j
//
//
//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
#region TCP Receiver
private static void TCP_Listen_Thread_Function()
{
TcpListener server = null;
ADTMessage adt_message;
try
{
initDatabase();
Int32 port = Convert.ToInt32(Global.TCP_PORT);
if (!System.Net.NetworkInformation.NetworkInterface.GetIsNetworkAvailable())
{
MLog.Error("No network available... Press any key to exit.");
Console.ReadKey();
return;
}
IPAddress localAddr = IPAddress.Parse(LocalIPAddress());
// TcpListener server = new TcpListener(port);
server = new TcpListener(localAddr, port);
// Start listening for client requests.
server.Start();
// Buffer for reading data
byte[] raw;
string rawString = "";
// Enter the listening loop.
while (true)
{
MLog.Info("Waiting for a connection... ");
// Perform a blocking call to accept requests.
// You could also user server.AcceptSocket() here.
TcpClient client = server.AcceptTcpClient();
MLog.Info("Connected!");
NetworkStream stream = client.GetStream();
int i = 0;
while (client.Connected)
{
// If this truly loops around 1 time per message
// then let the info about the message be known
// MLog.Info("Yo, whatup!" + i++);
try
{
// this reads exactly 1 message
raw = blockingEOMRead(stream, 1000, 500, 1000, Global.EOM);
//MLog.Info("Test: " + i);
if (raw.Length == 0 || raw.Length == 1)
{
continue;
}
rawString = Tool.ByteArrayToString(raw);
MLog.MsgCapture("Received: " + rawString);
// This extracts data from the message string
adt_message = new ADTMessage(rawString, DateTime.Now);
// Read from/Write to Patient and Location tables in database
if (!adt_message.skip)
{
adt_message.parse();
}
if (!adt_message.skip || Global.logIfSkipped)
{
adt_message.Log();
}
// Send an acknowledge
sendAck(stream);
}
catch (Exception ex)
{
MLog.Error("Exception Detected in msg: |" + rawString + "| Closing Connection.\n" + ex.Message);
client.Close();
break;
}
}
}
}
catch (SocketException ex)
{
MLog.Error("FATAL: SocketException: " + ex);
}
catch (Exception ex)
{
MLog.Error("FATAL: " + ex);
}
finally
{
MLog.Info("Exiting");
MLog.saveLog(null, null);
// Stop listening for new clients.
server.Stop();
}
}