private void BeginRead(IpcPipeData pd)
{
// Asynchronously read a request from the client
bool isConnected = pd.Pipe.IsConnected;
if (isConnected)
{
try
{
pd.Pipe.BeginRead(pd.Data, 0, pd.Data.Length, OnAsyncMessage, pd);
}
catch (Exception)
{
isConnected = false;
}
}
if (isConnected)
{
return;
}
pd.Pipe.Close();
_iipcCallback.OnAsyncDisconnect(pd.Pipe, pd.State);
lock (_pipes)
{
bool removed = _pipes.Remove(pd.Pipe);
Debug.Assert(removed);
}
}
private void OnAsyncMessage(IAsyncResult result)
{
// Async read from client completed
IpcPipeData pd = (IpcPipeData)result.AsyncState;
Int32 bytesRead = pd.Pipe.EndRead(result);
if (bytesRead != 0)
{
_iipcCallback.OnAsyncMessage(pd.Pipe, pd.Data, bytesRead, pd.State);
}
BeginRead(pd);
}
private void OnClientConnected(IAsyncResult result)
{
// Complete the client connection
NamedPipeServerStream pipe = (NamedPipeServerStream)result.AsyncState;
pipe.EndWaitForConnection(result);
// Create client pipe structure
IpcPipeData pd = new IpcPipeData {
Pipe = pipe, State = null, Data = new Byte[ServerInBufferSize]
};
// Add connection to connection list
bool running;
lock (_pipes)
{
running = _running;
if (running)
{
_pipes.Add(pd.Pipe, pd);
}
}
// If server is still running
if (running)
{
// Prepare for next connection
IpcServerPipeCreate();
// Alert server that client connection exists
_iipcCallback.OnAsyncConnect(pipe, out pd.State);
// Accept messages
BeginRead(pd);
}
else
{
pipe.Close();
}
}
