/// <summary>
/// Registers for cluster changes.
/// </summary>
/// <returns> </returns>
/// <exception cref="System.InvalidOperationException">Must be connected before Registration can take place</exception>
/// <exception cref="CqlException">Could not register for cluster changes!</exception>
public async Task RegisterForClusterChangesAsync(Logger logger)
{
var registerframe = new RegisterFrame(new List<string> { "TOPOLOGY_CHANGE", "STATUS_CHANGE" });
Frame result = await SendRequestAsync(registerframe, logger).ConfigureAwait(false);
if (!(result is ReadyFrame))
throw new CqlException("Could not register for cluster changes!");
//increase request count to prevent connection to go in Idle state
Interlocked.Increment(ref _activeRequests);
}
/// <summary>
/// Registers for cluster changes.
/// </summary>
/// <returns> </returns>
/// <exception cref="System.InvalidOperationException">Must be connected before Registration can take place</exception>
/// <exception cref="CqlException">Could not register for cluster changes!</exception>
public async Task RegisterForClusterChangesAsync(Logger logger)
{
if (_connectionState == ConnectionState.Closed)
throw new ObjectDisposedException(ToString());
//make sure the connection is open
await OpenAsync(logger);
//send the register frame
var registerframe = new RegisterFrame(new List<string> { "TOPOLOGY_CHANGE", "STATUS_CHANGE" });
Frame result =
await SendRequestAsyncInternal(registerframe, logger, 1, CancellationToken.None).AutoConfigureAwait();
//check result
if (!(result is ReadyFrame))
throw new CqlException("Could not register for cluster changes!");
//increase request count to prevent connection to go in Idle state
Interlocked.Increment(ref _activeRequests);
//release readLock to have readloop read the next event
_readLock.Release();
}
