private static void OnConnection(UvConnectRequest req, int status, Exception exception, object state)
{
var client = (UvTcpClient)state;
var connection = new UvTcpConnection(client._thread, client._connectSocket);
client._connectTcs.TrySetResult(connection);
}
private static void OnConnection(UvConnectRequest req, int status, Exception exception, object state)
{
var client = (UvTcpClient)state;
var connection = new UvTcpConnection(client._thread, client._connectSocket);
Task.Run(() => client._connectTcs.TrySetResult(connection));
}
private static async void ExecuteCallback(UvTcpListener listener, UvTcpConnection connection)
{
try
{
await listener._callback?.Invoke(connection);
}
catch
{
// Swallow exceptions
}
finally
{
await connection.DisposeAsync();
}
}
private static void OnConnectionCallback(UvStreamHandle listenSocket, int status, Exception error, object state)
{
var listener = (UvTcpListener)state;
var acceptSocket = new UvTcpHandle();
try
{
acceptSocket.Init(listener._thread.Loop, null);
acceptSocket.NoDelay(true);
listenSocket.Accept(acceptSocket);
var connection = new UvTcpConnection(listener._thread, acceptSocket);
ExecuteCallback(listener, connection);
}
catch (UvException)
{
acceptSocket.Dispose();
}
}
private static void OnConnectionCallback(UvStreamHandle listenSocket, int status, Exception error, object state)
{
var listener = (UvTcpListener)state;
var acceptSocket = new UvTcpHandle();
try
{
acceptSocket.Init(listener._thread.Loop, null);
acceptSocket.NoDelay(true);
listenSocket.Accept(acceptSocket);
var connection = new UvTcpConnection(listener._thread, acceptSocket);
ExecuteCallback(listener, connection);
}
catch (UvException)
{
acceptSocket.Dispose();
}
}
private static async void ExecuteCallback(UvTcpListener listener, UvTcpConnection connection)
{
try
{
await listener._callback?.Invoke(connection);
// Make sure we dispose off the libuv thread
await Task.Yield();
}
catch
{
// Swallow exceptions
}
finally
{
// Dispose the connection on task completion
connection.Dispose();
}
}
private static async void ExecuteCallback(UvTcpListener listener, UvTcpConnection connection)
{
try
{
await listener._callback?.Invoke(connection);
}
catch
{
// Swallow exceptions
}
finally
{
// Dispose the connection on task completion
connection.Dispose();
}
}
private static async Task ProduceResponse(ConnectionState state, UvTcpConnection connection, HttpResponseMessage response)
{
// TODO: pipelining support!
while (true)
{
var result = await connection.Input.ReadAsync();
var responseBuffer = result.Buffer;
var consumed = responseBuffer.Start;
var needMoreData = true;
try
{
if (consumed == state.Consumed)
{
var oldBody = responseBuffer.Slice(0, state.PreviousContentLength);
if (oldBody.Length != state.PreviousContentLength)
{
// Not enough data
continue;
}
// The caller didn't read the body
responseBuffer = responseBuffer.Slice(state.PreviousContentLength);
consumed = responseBuffer.Start;
state.Consumed = default(ReadCursor);
}
if (responseBuffer.IsEmpty && result.IsCompleted)
{
break;
}
ReadCursor delim;
ReadableBuffer responseLine;
if (!responseBuffer.TrySliceTo((byte)'\r', (byte)'\n', out responseLine, out delim))
{
continue;
}
responseBuffer = responseBuffer.Slice(delim).Slice(2);
ReadableBuffer httpVersion;
if (!responseLine.TrySliceTo((byte)' ', out httpVersion, out delim))
{
// Bad request
throw new InvalidOperationException();
}
consumed = responseBuffer.Start;
responseLine = responseLine.Slice(delim).Slice(1);
ReadableBuffer statusCode;
if (!responseLine.TrySliceTo((byte)' ', out statusCode, out delim))
{
// Bad request
throw new InvalidOperationException();
}
response.StatusCode = (HttpStatusCode)statusCode.GetUInt32();
responseLine = responseLine.Slice(delim).Slice(1);
ReadableBuffer remaining;
if (!responseLine.TrySliceTo((byte)' ', out remaining, out delim))
{
// Bad request
throw new InvalidOperationException();
}
while (!responseBuffer.IsEmpty)
{
var ch = responseBuffer.Peek();
if (ch == -1)
{
break;
}
if (ch == '\r')
{
// Check for final CRLF.
responseBuffer = responseBuffer.Slice(1);
ch = responseBuffer.Peek();
responseBuffer = responseBuffer.Slice(1);
if (ch == -1)
{
break;
}
else if (ch == '\n')
{
consumed = responseBuffer.Start;
needMoreData = false;
break;
}
// Headers don't end in CRLF line.
throw new Exception();
}
var headerName = default(ReadableBuffer);
var headerValue = default(ReadableBuffer);
// End of the header
// \n
ReadableBuffer headerPair;
if (!responseBuffer.TrySliceTo((byte)'\n', out headerPair, out delim))
{
break;
}
responseBuffer = responseBuffer.Slice(delim).Slice(1);
// :
if (!headerPair.TrySliceTo((byte)':', out headerName, out delim))
{
throw new Exception();
}
headerName = headerName.TrimStart();
headerPair = headerPair.Slice(headerName.End).Slice(1);
// \r
if (!headerPair.TrySliceTo((byte)'\r', out headerValue, out delim))
{
// Bad request
throw new Exception();
}
headerValue = headerValue.TrimStart();
var hKey = headerName.GetAsciiString();
var hValue = headerValue.GetAsciiString();
if (!response.Content.Headers.TryAddWithoutValidation(hKey, hValue))
{
response.Headers.TryAddWithoutValidation(hKey, hValue);
}
// Move the consumed
consumed = responseBuffer.Start;
}
}
catch (Exception ex)
{
// Close the connection
connection.Output.Complete(ex);
break;
}
finally
{
connection.Input.Advance(consumed);
}
if (needMoreData)
{
continue;
}
// Only handle content length for now
var length = response.Content.Headers.ContentLength;
if (!length.HasValue)
{
throw new NotSupportedException();
}
checked
{
// BAD but it's a proof of concept ok?
state.PreviousContentLength = (int)length.Value;
((PipelineHttpContent)response.Content).ContentLength = (int)length;
state.Consumed = consumed;
}
break;
}
}
