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4d28a01b84
m_DataBuffer may be modified concurrently while StatsFunc() is called, thus it's unsafe to call size() on it. As write access to m_DataBuffer is already synchronized by only modifying it from the single work queue thread, instead of adding a mutex, this commit adds a new std::atomic_size_t which is additionally updated when modifying m_DataBuffer and can safely be accessed in StatsFunc().