public void Send(IReadOnlyList <IMessage> messages, INetworkStream outputStream)
{
log.Debug($"Send {messages.Count} message(s) to {outputStream}");
bool isFirst = true;
foreach (var msg in messages)
{
var serialized = serializer.Serialize(msg);
if (!isFirst)
{
outputStream.Write(Separator, 0, Separator.Length);
}
outputStream.Write(serialized, 0, serialized.Length);
isFirst = false;
}
}
//------------------------------------------------------------------------------
//
// Method: EncodeAndSend
//
//------------------------------------------------------------------------------
/// <summary>
/// Adds delimiter characters and header information to the specified message and sends it.
/// </summary>
/// <param name="message">The message to send.</param>
private void EncodeAndSend(string message)
{
byte[] messageByteArray = stringEncoding.GetBytes(message);
// Create a 4 byte message sequence number, and encode as little endian
byte[] messageSequenceNumberByteArray = BitConverter.GetBytes(messageSequenceNumber);
EncodeAsLittleEndian(messageSequenceNumberByteArray);
// Create 8 bytes containing the length of the message body, and encode as little endian
byte[] messageSizeHeader = BitConverter.GetBytes(messageByteArray.LongLength);
EncodeAsLittleEndian(messageSizeHeader);
// Encode the message
byte[] encodedMessageByteArray = new byte[messageSequenceNumberByteArray.Length + messageSizeHeader.Length + messageByteArray.Length + 2];
encodedMessageByteArray[0] = messageStartDelimiter;
Array.Copy(messageSequenceNumberByteArray, 0, encodedMessageByteArray, 1, messageSequenceNumberByteArray.Length);
Array.Copy(messageSizeHeader, 0, encodedMessageByteArray, 1 + messageSequenceNumberByteArray.Length, messageSizeHeader.Length);
Array.Copy(messageByteArray, 0, encodedMessageByteArray, 1 + messageSequenceNumberByteArray.Length + messageSizeHeader.Length, messageByteArray.Length);
encodedMessageByteArray[encodedMessageByteArray.Length - 1] = messageEndDelimiter;
// Send the message
INetworkStream networkStream = client.GetStream();
networkStream.Write(encodedMessageByteArray, 0, encodedMessageByteArray.Length);
// As per http://msdn.microsoft.com/en-us/library/system.net.sockets.networkstream.flush%28v=vs.80%29.aspx the Flush() method has no effect on NetworkStream objects, and hence is not called.
WaitForMessageAcknowledgement(networkStream);
}
public void PingHandler(INetworkStream stream)
{
var buffer = new byte[PingSize];
using (var timer = new Timer(_ =>
{
stream.Dispose();
}, null, TimeSpan.Zero, PingTimeout))
{
while (true)
{
if (stream?.ReadFull(buffer) != buffer.Length)
{
break;
}
if (stream?.Write(buffer, 0, buffer.Length) != buffer.Length)
{
break;
}
timer.Change(TimeSpan.Zero, PingTimeout);
}
}
}
private TimeSpan Ping(INetworkStream stream)
{
var buffer = new byte[PingSize];
using (var rng = RandomNumberGenerator.Create())
{
rng.GetNonZeroBytes(buffer);
}
var sw = new Stopwatch();
sw.Start();
if (stream.Write(buffer, 0, buffer.Length) != buffer.Length)
{
return(TimeSpan.Zero);
}
var rbuf = new byte[PingSize];
if (stream.ReadFull(rbuf) != rbuf.Length)
{
return(TimeSpan.Zero);
}
if (!rbuf.SequenceEqual(buffer))
{
return(TimeSpan.Zero);
}
sw.Stop();
return(sw.Elapsed);
}
public bool Write(byte[] transmitArray)
{
bool ret = false;
if (serverNetworkStream != null)
{
serverNetworkStream.Write(transmitArray, 0, transmitArray.Length);
serverNetworkStream.Flush();
ret = true;
}
return(ret);
}
public void GivenAFakedSocketACallToWriteShouldBeRelayed()
{
string writtenString = Guid.NewGuid().ToString();
ISocket socket = A.Fake <ISocket>();
INetworkStream stream = A.Fake <INetworkStream>();
A.CallTo(() => socket.GetStream()).Returns(stream);
TcpByteStream sut = new TcpByteStream(socket);
sut.Write(writtenString);
A.CallTo(() => stream.Write(A <byte[]> .Ignored, 0, writtenString.Length)).MustHaveHappened();
}
/// <summary>
///
/// </summary>
/// <param name="requests">Requests to send</param>
/// <returns>Responses from the server</returns>
public Message[] SendRequests(Message[] requests)
{
byte[] requestsBytes;
int count = _converter.MessagesToBytes(out requestsBytes, requests);
ITcpClient _tcpClient = _tcpFactory.Create();
_tcpClient.Connect(_address, _port);
using (INetworkStream networkStream = _tcpClient.GetStream())
{
networkStream.Write(requestsBytes, count);
byte[] responseBytes = new byte[Properties.Settings.Default.MaxBufferSize];
int len = networkStream.Read(responseBytes, Properties.Settings.Default.MaxBufferSize);
networkStream.Close();
_tcpClient.Close();
return(_converter.BytesToMessages(responseBytes, len));
}
}
/// <summary>
/// Send a command to the Folding@Home client server.
/// </summary>
/// <param name="command">Command text. Null, empty, or whitespace strings will be ignored.</param>
/// <exception cref="InvalidOperationException">Connection is not connected.</exception>
/// <remarks>Callers should make sure the Connection is connected by checking the value of the Connected property.</remarks>
public void SendCommand(string command)
{
// check connection status, callers should make sure they're connected first
if (!Connected)
{
throw new InvalidOperationException("Connection is not connected.");
}
if (command == null || command.Trim().Length == 0)
{
OnStatusMessage(new StatusMessageEventArgs("No command text given.", TraceLevel.Warning));
return;
}
if (!command.EndsWith("\n", StringComparison.Ordinal))
{
command += "\n";
}
byte[] buffer = Encoding.ASCII.GetBytes(command);
#if SEND_ASYNC
_stream.BeginWrite(buffer, 0, buffer.Length, WriteCallback, new AsyncData(command, buffer));
#else
try
{
_stream.Write(buffer, 0, buffer.Length);
// send data sent event
OnDataLengthSent(new DataLengthEventArgs(buffer.Length));
// send status message
OnStatusMessage(new StatusMessageEventArgs(String.Format(CultureInfo.CurrentCulture,
"Sent command: {0} ({1} bytes)", CleanUpCommandText(command), buffer.Length), TraceLevel.Info));
}
catch (Exception ex)
{
OnStatusMessage(new StatusMessageEventArgs(String.Format(CultureInfo.CurrentCulture,
"Write failed: {0}", ex.Message), TraceLevel.Error));
Close();
}
#endif
}
private void WriteOnStream(byte[] buffer, int toWrite)
{
CheckAndResize(ref buffer, toWrite);
browserStream.Write(buffer, 0, toWrite);
}
protected void Send(string value, ITcpClient tcpClient)
{
value += EndOfLine;
INetworkStream networkStream = default;
byte[] bytes = default;
try
{
ThrowIf.IsNull(tcpClient, "Error in Send(). tcpClient can't be null!");
try
{
bytes = Encoding.ASCII.GetBytes(value);
}
catch (Exception exception)
{
if (!Disconnecting)
{
throw new TcpIpGetBytesFailedException(exception);
}
}
try
{
networkStream = tcpClient.GetStream();
}
catch (Exception exception)
{
if (!Disconnecting)
{
throw new TcpIpGetStreamFailedException(exception);
}
}
if (networkStream.CanWrite)
{
try
{
networkStream.Write(bytes, 0, bytes.Length);
}
catch (Exception exception)
{
if (!Disconnecting)
{
throw new TcpIpNetworkStreamWriteFailedException(exception);
}
}
}
else
{
if (!Disconnecting)
{
throw new TcpIpNetworkStreamIsNotWriteableException();
}
}
}
catch (Exception exception)
{
if (!Disconnecting)
{
throw new TcpIpSendFailedException(exception);
}
}
}
public void Send(IMessage message, INetworkStream outputStream)
{
var serialized = serializer.Serialize(message);
outputStream.Write(serialized, 0, serialized.Length);
}
