internal ValueTask <IMemoryOwner <byte> > GetBlockAsync(int blockId)
{
if (blockId >= _blockCount)
{
throw new ArgumentOutOfRangeException($"You requested a block of {blockId} but the block count is only {_blockCount}");
}
Interlocked.Increment(ref _numberOfRefs);
var mem = new MMapBlockCacheMemory(_parentCache, _fileId, blockId, _ptr);
return(new ValueTask <IMemoryOwner <byte> >(mem));
}
internal void ReturnBlock(MMapBlockCacheMemory blockCacheMemory)
{
_cache[blockCacheMemory.FileId].MemoryReturned();
}