/// <summary>
/// Reads the data sent from the server named pipe endpoint as a stream
/// </summary>
/// <returns>The stream object containing the data read from the server</returns>
public System.IO.Stream ReadStream()
{
try
{
System.Diagnostics.Trace.WriteLine(
"ReadStream() called",
"TransMock.Communication.NamedPipes.StreamingNamedPipeClient");
byte[] inBuffer = new byte[256];
MemoryStream msgStream = new MemoryStream(4096);
int byteCountRead = 0;
bool eofReached = false;
while (!eofReached)
{
byteCountRead = this.pipeClient.Read(inBuffer, 0, inBuffer.Length);
eofReached = NamedPipeMessageUtils.IsEndOfMessage(
inBuffer,
byteCountRead);
if (eofReached && byteCountRead > 0)
{
byteCountRead -= NamedPipeMessageUtils.EndOfMessage.Length;
// We take tha contents without the EndOfMessage sequence
//inBuffer = inBuffer
// .Take(byteCountRead)
// .ToArray();
}
msgStream.Write(
inBuffer,
0,
byteCountRead);
}
System.Diagnostics.Trace.WriteLine(
"ReadStream() succeeded",
"TransMock.Communication.NamedPipes.StreamingNamedPipeClient");
// Rewind the message stream to the beginning
msgStream.Seek(0, SeekOrigin.Begin);
return(msgStream);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(
"ReadStream() threw exception: " + ex.Message,
"TransMock.Communication.NamedPipes.StreamingNamedPipeClient");
throw;
}
}
/// <summary>
/// Reads the data sent from the server named pipe endpoint as a stream
/// </summary>
/// <returns>The stream object containing the data read from the server</returns>
public async Task <System.IO.Stream> ReadStreamAsync()
{
try
{
System.Diagnostics.Trace.WriteLine(
"ReadStreamAsync() called",
"TransMock.Communication.NamedPipes.StreamingNamedPipeClientAsync");
byte[] inBuffer = new byte[256];
MemoryStream msgStream = new MemoryStream(4096);
int byteCountRead = 0;
bool eofReached = false;
while (!eofReached)
{
byteCountRead = await this.pipeClient
.ReadAsync(inBuffer, 0, inBuffer.Length);
eofReached = NamedPipeMessageUtils.IsEndOfMessage(
inBuffer,
byteCountRead);
if (eofReached && byteCountRead > 0)
{
byteCountRead -= NamedPipeMessageUtils.EndOfMessage.Length;
}
msgStream.Write(
inBuffer,
0,
byteCountRead);
}
System.Diagnostics.Trace.WriteLine(
"ReadStreamAsync() succeeded",
"TransMock.Communication.NamedPipes.StreamingNamedPipeClientAsync");
// Rewind the message stream to the beginning
msgStream.Seek(0, SeekOrigin.Begin);
return(msgStream);
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(
"ReadStreamAsync() threw exception: " + ex.Message,
"TransMock.Communication.NamedPipes.StreamingNamedPipeClientAsync");
throw;
}
}
/// <summary>
/// Asynchronous callback for a read operation from the pipe
/// </summary>
/// <param name="ar">The async result instanced passed to the method</param>
private void PipeReadAsync(IAsyncResult ar)
{
try
{
System.Diagnostics.Debug.WriteLine(
$"Beginning reading from the pipe. Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
// Extracting the pipe connection from which the data is being read
var state = ar.AsyncState as AsyncReadState;
NamedPipeServerStream pipeConnection;
lock (this.pipeSyncLock)
{
System.Diagnostics.Debug.WriteLine(
$@"Acquired lock for getting connection for client id: {state.ConnectionId}.
Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
pipeConnection = this.pipeServerConnections[state.ConnectionId];
}
int bytesRead = pipeConnection.EndRead(ar);
bool eofReached = false;
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Read {0} bytes",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
eofReached = NamedPipeMessageUtils.IsEndOfMessage(
state.RawData,
bytesRead);
System.Diagnostics.Debug.WriteLine(
$@"eofReached is: {eofReached}.
Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
if (eofReached && bytesRead > 0)
{
bytesRead -= NamedPipeMessageUtils.EndOfMessage.Length;
// We take tha contents without the EndOfMessage sequence
state.RawData = state.RawData
.Take(bytesRead)
.ToArray();
}
state.InStream.Write(
state.RawData,
0,
bytesRead);
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Written {0} bytes to the internal stream",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
if (!eofReached)
{
// Not EOF, continue reading
pipeConnection.BeginRead(
state.RawData,
0,
state.RawData.Length,
cb => this.PipeReadAsync(cb),
state);
}
else
{
// EOF reached, constructing the message
System.Diagnostics.Debug.WriteLine(
"Message was read from the pipe",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
// Rewind the stream
state.InStream.Seek(0, SeekOrigin.Begin);
lock (this.pipeSyncLock)
{
// Notify that the read was complete
this.OnReadCompleted(state.ConnectionId, state.InStream);
}
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(
"PipeReadAsync threw an exception: " + ex.Message,
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
}
}
/// <summary>
/// Asynchronous callback for a read operation from the pipe
/// </summary>
/// <param name="ar">The async result instanced passed to the method</param>
private void PipeReadAsync(IAsyncResult ar)
{
try
{
System.Diagnostics.Debug.WriteLine(
"Beginning reading from the pipe",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
// Extracting the pipe connection from which the data is being read
var state = ar.AsyncState as AsyncReadState;
NamedPipeServerStream pipeConnection;
lock (this.pipeSyncLock)
{
pipeConnection = this.pipeServerConnections[state.ConnectionId];
}
int bytesRead = pipeConnection.EndRead(ar);
bool eofReached = false;
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Read {0} bytes",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
if (bytesRead > 0)
{
eofReached = NamedPipeMessageUtils.IsEndOfMessage(
state.RawData.Length,
bytesRead);
}
else
{
eofReached = true;
}
state.InStream.Write(
state.RawData,
0,
bytesRead);
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Written {0} bytes to the internal stream",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
if (!eofReached)
{
// Not EOF, continue reading
pipeConnection.BeginRead(
state.RawData,
0,
state.RawData.Length,
cb => this.PipeReadAsync(cb),
state);
}
else
{
// EOF reached, constructing the message
System.Diagnostics.Debug.WriteLine(
"Message was read from the pipe",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
// Rewind the stream
state.InStream.Seek(0, SeekOrigin.Begin);
lock (this.pipeSyncLock)
{
// Notify that the read was complete
this.OnReadCompleted(state.ConnectionId, state.InStream);
}
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(
"PipeReadAsync threw an exception: " + ex.Message,
"TransMock.Communication.NamedPipe.StreamingNamedPipeServer");
}
}
/// <summary>
/// Asynchronous callback for a read operation from the pipe
/// </summary>
/// <param name="ar">The async result instanced passed to the method</param>
private async Task PipeReadAsync(AsyncReadState state)
{
try
{
System.Diagnostics.Debug.WriteLine(
$"Beginning reading from the pipe. Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
NamedPipeServerStream pipeConnection;
System.Diagnostics.Debug.WriteLine(
$@"Getting connection for client id: {state.ConnectionId}.
Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
while (!this.pipeServerConnections
.TryGetValue(state.ConnectionId, out pipeConnection))
{
System.Diagnostics.Debug.WriteLine(
$@"Did not manage to acwuire connection for client id: {state.ConnectionId}.
Continuing to try...",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
}
if (!pipeConnection.IsConnected)
{
System.Diagnostics.Debug.WriteLine(
"Pipe has not been connected yet! Exiting",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
return;
}
byte[] buffer = new byte[4096];
int bytesRead = await pipeConnection.ReadAsync(buffer, 0, buffer.Length);
bool eofReached = false;
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Read {0} bytes",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
eofReached = NamedPipeMessageUtils.IsEndOfMessage(
buffer,
bytesRead);
System.Diagnostics.Debug.WriteLine(
$@"eofReached is: {eofReached}.
Thread id: {Thread.CurrentThread.ManagedThreadId}.",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
if (eofReached && bytesRead > 0)
{
bytesRead -= NamedPipeMessageUtils.EndOfMessage.Length;
// We take tha contents without the EndOfMessage sequence
buffer = buffer
.Take(bytesRead)
.ToArray();
}
state.InStream.Write(
buffer,
0,
bytesRead);
System.Diagnostics.Debug.WriteLine(
string.Format(
CultureInfo.InvariantCulture,
"Written {0} bytes to the internal stream",
bytesRead),
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
if (!eofReached)
{
// Not EOF, continue reading
await PipeReadAsync(state);
}
else
{
// EOF reached, constructing the message
System.Diagnostics.Debug.WriteLine(
"Message was read from the pipe",
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
// Rewind the stream
state.InStream.Seek(0, SeekOrigin.Begin);
// Notify that the read was complete
this.OnReadCompleted(state.ConnectionId, state.InStream);
}
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(
"PipeReadAsync threw an exception: " + ex.Message,
"TransMock.Communication.NamedPipe.StreamingNamedPipeServerAsync");
}
}
