private async Task <RawDataServiceFeatureMatrix> GetFeatureMatrixInternal(FetchBehavior behavior, CancellationToken cancellationToken = default(CancellationToken))
{
// This is an intentional race condition. Calling this method from multiple threads may lead to multiple calls to Get<InterfaceInformation>().
// However, this would be rare and harmless, since it should always return the same result. It would be a lot more difficult to make this work without any races or blocking.
// It is important to never set _LastValidServiceInformation to null anywhere to avoid possible null returns here due to the race condition.
if (behavior == FetchBehavior.FetchAlways || _FeatureMatrix == null)
{
var interfaceVersionRange = await GetInterfaceInformation(cancellationToken).ConfigureAwait(false);
_FeatureMatrix = new RawDataServiceFeatureMatrix(interfaceVersionRange);
}
return(_FeatureMatrix);
}
private async Task <ServiceInformation> GetServiceInformationInternal(FetchBehavior behavior, CancellationToken cancellationToken = default(CancellationToken))
{
// This is an intentional race condition. Calling this method from multiple threads may lead to multiple calls to Get<ServiceInformation>().
// However, this would be rare and harmless, since it should always return the same result. It would be a lot more difficult to make this work without any races or blocking.
// It is important to never set _LastValidServiceInformation to null anywhere to avoid possible null returns here due to the race condition.
if (behavior == FetchBehavior.FetchAlways || _LastValidServiceInformation == null)
{
var serviceInformation = await _RestClient.Request <ServiceInformation>(RequestBuilder.CreateGet("ServiceInformation"), cancellationToken).ConfigureAwait(false);
_LastValidServiceInformation = serviceInformation;
}
return(_LastValidServiceInformation);
}
