Class Block

readerwriterqueue.h:695–725

#endif

	struct Block
	{
		// Avoid false-sharing by putting highly contended variables on their own cache lines
		weak_atomic<size_t> front;	// (Atomic) Elements are read from here
		size_t localTail;			// An uncontended shadow copy of tail, owned by the consumer
		
		char cachelineFiller0[MOODYCAMEL_CACHE_LINE_SIZE - sizeof(weak_atomic<size_t>) - sizeof(size_t)];
		weak_atomic<size_t> tail;	// (Atomic) Elements are enqueued here
		size_t localFront;
		
		char cachelineFiller1[MOODYCAMEL_CACHE_LINE_SIZE - sizeof(weak_atomic<size_t>) - sizeof(size_t)];	// next isn't very contended, but we don't want it on the same cache line as tail (which is)
		weak_atomic<Block*> next;	// (Atomic)
		
		char* data;		// Contents (on heap) are aligned to T's alignment

		const size_t sizeMask;


		// size must be a power of two (and greater than 0)
		AE_NO_TSAN Block(size_t const& _size, char* _rawThis, char* _data)
			: front(0UL), localTail(0), tail(0UL), localFront(0), next(nullptr), data(_data), sizeMask(_size - 1), rawThis(_rawThis)
		{
		}

	private:
		// C4512 - Assignment operator could not be generated
		Block& operator=(Block const&);

	public:
		char* rawThis;
	};
	
	
	static Block* make_block(size_t capacity) AE_NO_TSAN