public Task SetState(ConnectionStateBase newState, bool skipAttach = false)
{
if (Logger.IsDebug)
{
Logger.Debug($"xx Changing state from {ConnectionState} => {newState.State}. SkipAttach = {skipAttach}.");
}
_inTransitionToState = newState;
return(ExecuteOnManagerThread(async() =>
{
try
{
lock (_stateSyncLock)
{
if (State.State == newState.State)
{
if (Logger.IsDebug)
{
Logger.Debug($"xx State is already {State.State}. Skipping SetState action.");
}
return;
}
//Abort any timers on the old state
State.AbortTimer();
if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: BeforeTransition");
}
newState.BeforeTransition();
AttemptsInfo.UpdateAttemptState(newState);
Connection.UpdateState(newState);
}
if (skipAttach == false)
{
if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: Attaching state ");
}
await newState.OnAttachToContext();
}
else if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: Skipping attaching.");
}
await ProcessQueuedMessages();
}
catch (AblyException ex)
{
Logger.Error("Error attaching to context", ex);
lock (_transportQueueLock)
_queuedTransportMessages.Clear();
Connection.UpdateState(newState);
newState.AbortTimer();
if (newState.State != Realtime.ConnectionState.Failed)
{
SetState(new ConnectionFailedState(this, ex.ErrorInfo));
}
}
finally
{
//Clear the state in transition only if the current state hasn't updated it
if (_inTransitionToState == newState)
{
_inTransitionToState = null;
}
}
}));
}
public void ClearTokenAndRecordRetry()
{
RestClient.AblyAuth.ExpireCurrentToken();
AttemptsInfo.RecordTokenRetry();
}
public Task <bool> CanUseFallBackUrl(ErrorInfo error)
{
return(AttemptsInfo.CanFallback(error));
}
internal async Task <TransportParams> CreateTransportParameters()
{
return(await TransportParams.Create(AttemptsInfo.GetHost(), RestClient.AblyAuth, Options, Connection.Key, Connection.Serial));
}
public bool ShouldSuspend()
{
return(AttemptsInfo.ShouldSuspend());
}
public Task SetState(ConnectionStateBase newState, bool skipAttach = false)
{
if (Logger.IsDebug)
{
Logger.Debug(
$"xx Changing state from {ConnectionState} => {newState.State}. SkipAttach = {skipAttach}.");
}
_inTransitionToState = newState;
return(ExecuteOnManagerThread(async() =>
{
try
{
lock (_stateSyncLock)
{
if (!newState.IsUpdate)
{
if (State.State == newState.State)
{
if (Logger.IsDebug)
{
Logger.Debug($"xx State is already {State.State}. Skipping SetState action.");
}
return;
}
AttemptsInfo.UpdateAttemptState(newState);
State.AbortTimer();
}
if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: BeforeTransition");
}
newState.BeforeTransition();
if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: BeforeTransition end");
}
Connection.UpdateState(newState);
}
if (skipAttach == false)
{
if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: Attaching state ");
}
await newState.OnAttachToContext();
}
else if (Logger.IsDebug)
{
Logger.Debug($"xx {newState.State}: Skipping attaching.");
}
await ProcessQueuedMessages();
}
catch (AblyException ex)
{
Logger.Error("Error attaching to context", ex);
_queuedTransportMessages = new ConcurrentQueue <ProtocolMessage>();
Connection.UpdateState(newState);
newState.AbortTimer();
// RSA4c2 & RSA4d
if (newState.State == ConnectionState.Connecting &&
ex.ErrorInfo.Code == 80019 & !ex.ErrorInfo.IsForbiddenError)
{
await SetState(new ConnectionDisconnectedState(this, ex.ErrorInfo, Logger));
}
else if (newState.State != ConnectionState.Failed)
{
await SetState(new ConnectionFailedState(this, ex.ErrorInfo, Logger));
}
}
finally
{
// Clear the state in transition only if the current state hasn't updated it
if (_inTransitionToState == newState)
{
_inTransitionToState = null;
}
}
}));
}
