internal static RioMemoryPoolBlock Create( int offset, int length, RioMemoryPool pool, RioMemoryPoolSlab slab) { return(new RioMemoryPoolBlock(pool, slab, offset, length)); }
/// <summary> /// This object cannot be instantiated outside of the static Create method /// </summary> protected RioMemoryPoolBlock(RioMemoryPool pool, RioMemoryPoolSlab slab, int offset, int length) { _offset = offset; _length = length; Pool = pool; Slab = slab; }
/// <summary> /// Internal method called when a block is requested and the pool is empty. It allocates one additional slab, creates all of the /// block tracking objects, and adds them all to the pool. /// </summary> private RioMemoryPoolBlock AllocateSlab() { var slab = RioMemoryPoolSlab.Create(_slabLength); _slabs.Push(slab); _slabAllocationCallback?.Invoke(slab); slab._deallocationCallback = _slabDeallocationCallback; var basePtr = slab.NativePointer; var firstOffset = (int)((_blockStride - 1) - ((ulong)(basePtr + _blockStride - 1) % _blockStride)); var poolAllocationLength = _slabLength - _blockStride; var offset = firstOffset; for (; offset + _blockLength < poolAllocationLength; offset += _blockStride) { var block = RioMemoryPoolBlock.Create( offset, _blockLength, this, slab); #if BLOCK_LEASE_TRACKING block.IsLeased = true; #endif Return(block); } // return last block rather than adding to pool var newBlock = RioMemoryPoolBlock.Create( offset, _blockLength, this, slab); return(newBlock); }