public async Task ReturnAsync(
ISocketConnection connection,
CancellationToken cancellationToken = default)
{
await _semaphoreSlim.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
if (_connections.TryGetValue(connection.Name, out ConnectionInfo? connectionInfo))
{
connectionInfo.Rentals--;
}
else
{
throw new ArgumentException(
"The specified connection does not belong to this pool.",
nameof(connection));
}
if (connectionInfo.Rentals < 1)
{
try
{
for (int i = 0; i < _connectionInterceptors.Length; i++)
{
await _connectionInterceptors[i].OnDisconnectAsync(
connectionInfo.Connection)
.ConfigureAwait(false);
}
await TerminateConnectionAsync(connection, cancellationToken)
.ConfigureAwait(false);
_connections.Remove(connection.Name);
await connection.CloseAsync(
"All subscriptions closed.",
SocketCloseStatus.NormalClosure,
cancellationToken)
.ConfigureAwait(false);
}
catch
{
// we ignore errors here
}
finally
{
connection.Dispose();
}
}
}
finally
{
_semaphoreSlim.Release();
}
}
protected virtual void Dispose(bool disposing)
{
if (!_disposed)
{
if (disposing && _disposeConnection)
{
_connection.Dispose();
}
_disposed = true;
}
}
public void Dispose()
{
_isDisposed = true;
_keepAliveTimer.Enabled = false;
_keepAliveTimer.Stop();
_packetProtocol.MessageArrived = null;
_packetProtocol.KeepAliveArrived = null;
_socket.Disconnect(false);
_socket.Dispose();
_socket.Close();
}
