internal void Close(WebSocketCloseReasons reason)
{
try
{
if (Interlocked.CompareExchange(ref _isClosed, 1, 0) == 1)
{
return;
}
((UInt16)reason).ToBytesBackwards(_closeBuffer.Array, _closeBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
_clientStream.Close();
}
catch { }
}
internal void Close(WebSocketCloseReasons reason)
{
try
{
if (Interlocked.CompareExchange(ref _isClosed, 1, 0) == 1)
{
return;
}
((ushort)reason).ToBytesBackwards(_closeBuffer.Array, _closeBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
_clientStream.Close();
}
catch (Exception ex)
{
Debug.Fail("WebSocketConnectionRfc6455.Close: " + ex.Message);
}
}
internal void Close(WebSocketCloseReasons reason)
{
try
{
if (Interlocked.CompareExchange(ref _isClosed, 1, 0) == 1)
{
return;
}
((UInt16)reason).ToBytesBackwards(_closeBuffer.Array, _closeBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
#if (NET45 || NET451 || NET452 || NET46)
_clientStream.Close();
#endif
}
catch (Exception ex)
{
DebugLog.Fail("WebSocketConnectionRfc6455.Close", ex);
}
}
public async Task CloseAsync(WebSocketCloseReasons reason)
{
if (Interlocked.CompareExchange(ref this.closeState, CLOSE_STATE_CLOSED, CLOSE_STATE_OPEN) != CLOSE_STATE_OPEN)
{
return;
}
await this.writeSemaphore.WaitAsync().ConfigureAwait(false);
try
{
((ushort)reason).ToBytesBackwards(this.closeBuffer.Array, this.closeBuffer.Offset);
var messageType = (WebSocketMessageType)WebSocketFrameOption.ConnectionClose;
var closeFrame = this.PrepareFrame(this.closeBuffer, 2, true, false, messageType, WebSocketExtensionFlags.None);
await this.SendFrameAsync(closeFrame, Timeout.InfiniteTimeSpan, SendOptions.NoLock | SendOptions.NoErrors | SendOptions.IgnoreClose, CancellationToken.None).ConfigureAwait(false);
await this.networkConnection.FlushAsync(CancellationToken.None).ConfigureAwait(false);
await this.networkConnection.CloseAsync().ConfigureAwait(false);
}
catch (Exception closeError) when(closeError.Unwrap() is ThreadAbortException == false)
{
var closeErrorUnwrap = closeError.Unwrap();
if (closeErrorUnwrap is IOException || closeErrorUnwrap is OperationCanceledException || closeErrorUnwrap is InvalidOperationException)
{
return; // ignore common IO exceptions while closing connection
}
if (this.log.IsDebugEnabled)
{
this.log.Debug($"({this.GetHashCode():X}) An error occurred while closing connection.", closeError.Unwrap());
}
}
finally
{
SafeEnd.ReleaseSemaphore(this.writeSemaphore, this.log);
}
}
private void Close(WebSocketCloseReasons reason)
{
try
{
if (Interlocked.CompareExchange(ref _isClosed,1,0) == 1)
return;
((Int16)reason).ToBytesBackwards(_closeBuffer.Array, _closeBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
_clientStream.Close();
}
catch { }
}
private void Close(WebSocketCloseReasons reason)
{
try
{
if (_isClosed)
return;
_isClosed = true;
((UInt16)reason).ToBytes(_closeBuffer.Array, _controlBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
_clientStream.Close();
}
catch { }
}
internal void Close(WebSocketCloseReasons reason)
{
try
{
if (Interlocked.CompareExchange(ref _isClosed,1,0) == 1)
return;
((UInt16)reason).ToBytesBackwards(_closeBuffer.Array, _closeBuffer.Offset);
WriteInternal(_closeBuffer, 2, true, false, WebSocketFrameOption.ConnectionClose, WebSocketExtensionFlags.None);
_clientStream.Close();
}
catch (Exception ex)
{
DebugLog.Fail("WebSocketConnectionRfc6455.Close", ex);
}
}
