GetAggregator() [1/2]

TAggregator System.Diagnostics.Metrics.AggregatorStore< TAggregator >.GetAggregator ( )

inline

Definition at line 85 of file AggregatorStore.cs.

    {
        MultiSizeLabelNameDictionary<TAggregator> multiSizeLabelNameDictionary2;
        while (true)
        {
            object stateUnion = _stateUnion;
            if (stateUnion == null)
            {
                TAggregator val = _createAggregatorFunc();
                if (val == null)
                {
                    return val;
                }
                if (Interlocked.CompareExchange(ref _stateUnion, val, null) == null)
                {
                    return val;
                }
                continue;
            }
            if (stateUnion is TAggregator result)
            {
                return result;
            }
            if (stateUnion is MultiSizeLabelNameDictionary<TAggregator> multiSizeLabelNameDictionary)
            {
                return multiSizeLabelNameDictionary.GetNoLabelAggregator(_createAggregatorFunc);
            }
            multiSizeLabelNameDictionary2 = new MultiSizeLabelNameDictionary<TAggregator>(stateUnion);
            if (Interlocked.CompareExchange(ref _stateUnion, multiSizeLabelNameDictionary2, stateUnion) == stateUnion)
            {
                break;
            }
        }
        return multiSizeLabelNameDictionary2.GetNoLabelAggregator(_createAggregatorFunc);
    }

References System.Diagnostics.Metrics.AggregatorStore< TAggregator >._createAggregatorFunc, System.Diagnostics.Metrics.AggregatorStore< TAggregator >._stateUnion, and System.Threading.Interlocked.CompareExchange().