protected virtual void OnServeCommand(ServerCommData data)
{
var handler = this.ServeCommand;
if (handler != null)
{
handler(
this,
new ServeCommandEventArgs(data));
}
}
/// <summary>
/// Running thread handler
/// </summary>
protected override void Worker()
{
#if NET45
System.Diagnostics.Trace.WriteLine("start");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("start");
#endif
//loop, until the host closes
while (this._closing == false)
{
//look for incoming data
int length = this.Port.Available;
if (length > 0)
{
var buffer = new byte[length];
EndPoint remote = new IPEndPoint(IPAddress.Any, 0);
//read the data from the physical port
this.Port.ReceiveFrom(
buffer,
ref remote);
//try to decode the incoming data
var data = new ServerCommData(this.Protocol);
data.IncomingData = new ByteArrayReader(buffer);
CommResponse result = this.Protocol
.Codec
.ServerDecode(data);
if (result.Status == CommResponse.Ack)
{
//the command is recognized, so call the host back
this.OnServeCommand(data);
//encode the host data
this.Protocol
.Codec
.ServerEncode(data, data.Address);
//return the resulting data to the remote caller
byte[] outgoing = ((IByteArray)data.OutgoingData).Data;
this.Port.SendTo(
outgoing,
remote);
}
}
Thread.Sleep(0);
}
#if NET45
System.Diagnostics.Trace.WriteLine("close");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("close");
#endif
//marks the server not running
this.IsRunning = false;
}
/// <summary>
/// Running thread handler
/// </summary>
private void Worker()
{
#if NET45
System.Diagnostics.Trace.WriteLine("start");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("start");
#endif
//start the local timer, which gets the session dying
int counter = IdleTimeout;
int grace = 0;
//create a writer for the incoming data
ByteArrayWriter writer = null;
var buffer = new byte[CacheSize];
using (Timer timer = new Timer(
_ =>
{
counter--;
if (--grace == 0)
{
writer = null;
}
},
state: null,
dueTime: 1000,
period: 1000))
{
//loop until the host closes, or the timer expires
while (
this.Port.IsOpen &&
this._closing == false &&
counter > 0)
{
//look for incoming data
int length = this.Port.BytesToRead;
if (length > 0)
{
grace = 2;
if (length > CacheSize)
{
length = CacheSize;
}
//read the data from the physical port
this.Port.Read(
buffer,
0,
length);
//append the data to the writer
if (writer == null)
{
writer = new ByteArrayWriter();
}
writer.WriteBytes(
buffer,
0,
length);
//try to decode the incoming data
var data = new ServerCommData(this.Protocol);
data.IncomingData = writer.ToReader();
#if NET45
//System.Diagnostics.Trace.WriteLine("RX: " + ByteArrayHelpers.ToHex(((IByteArray)data.IncomingData).Data));
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("RX: " + ByteArrayHelpers.ToHex(((IByteArray)data.IncomingData).Data));
#endif
CommResponse result = this.Protocol
.Codec
.ServerDecode(data);
if (result.Status == CommResponse.Ack)
{
//the command is recognized, so call the host back
this.OnServeCommand(data);
//encode the host data
this.Protocol
.Codec
.ServerEncode(data, 0);
//return the resulting data to the remote caller
byte[] outgoing = ((IByteArray)data.OutgoingData).Data;
if (this.Port.IsOpen)
{
this.Port.Write(
outgoing,
0,
outgoing.Length);
}
else
{
break;
}
//reset the timer
counter = IdleTimeout;
writer = null;
}
//else if (result.Status == CommResponse.Ignore)
//{
// writer = null;
//}
}
Thread.Sleep(0);
}
}
#if NET45
System.Diagnostics.Trace.WriteLine("close");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("close");
#endif
//marks the server not running
this.IsRunning = false;
}
/// <summary>
/// Running thread handler
/// </summary>
protected override void Worker()
{
#if NET45
System.Diagnostics.Trace.WriteLine("start");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("start");
#endif
try
{
//start the local timer, which gets the session dying
var counter = IdleTimeout;
Port.ReceiveTimeout = 1000;
var grace = 0;
//create a writer for the incoming data
ByteArrayWriter writer = null;
var buffer = new byte[CacheSize];
//loop, until the host closes, or the timer expires
while (
_closing == false &&
counter-- > 0)
{
if (--grace == 0)
{
writer = null;
}
//look for incoming data
int length;
try
{
//read the data from the physical port
length = Port.Receive(
buffer,
SocketFlags.None);
//check whether the remote has closed
if (length == 0)
{
break;
}
}
catch (ObjectDisposedException)
{
break;
}
catch (SocketException ex)
{
//no data received due socket timeout
Debug.WriteLine(ex.Message);
length = 0;
}
if (length > 0)
{
grace = 2;
//append the data to the writer
if (writer == null)
{
writer = new ByteArrayWriter();
}
writer.WriteBytes(
buffer,
0,
length
);
//try to decode the incoming data
var data = new ServerCommData(this.Protocol);
data.IncomingData = writer.ToReader();
CommResponse result;
try
{
result = this.Protocol
.Codec
.ServerDecode(data);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
result = new CommResponse(null, CommResponse.Ignore);
}
if (result.Status == CommResponse.Ack)
{
//the command is recognized, so call the host back
OnServeCommand(data);
//encode the host data
Protocol
.Codec
.ServerEncode(data);
//return the resulting data to the remote caller
var outgoing = data.OutgoingData.ToByteArray();
if (Port.Connected)
{
try
{
Port.Send(outgoing);
}
catch (Exception ex)
{
Trace.TraceError(ex.Message);
}
}
//reset the timer
counter = IdleTimeout;
writer = null;
}
else if (result.Status == CommResponse.Ignore)
{
writer = null;
}
}
Thread.Sleep(0);
}
}
catch (ObjectDisposedException)
{
}
finally
{
//ensure the local socket disposal
Port.Close();
}
#if NET45
System.Diagnostics.Trace.WriteLine("close");
#elif MF_FRAMEWORK_VERSION_V4_1 || MF_FRAMEWORK_VERSION_V4_2
Microsoft.SPOT.Debug.Print("close");
#endif
//marks the server not running
IsRunning = false;
Disconnected?.Invoke();
}
