private async Task <Dictionary <int, ICalculateWay> > GetPieceWiseFuncUnderContextAsync()
{
var keys = _cacheCacheProvider.GetForkCacheKeys();
if (keys.Length == 0)
{
return(await GetDefaultPieceWiseFunctionAsync());
}
var minHeight = keys.Select(k => k.BlockHeight).Min();
Dictionary <int, ICalculateWay> algorithm = null;
var blockIndex = new BlockIndex
{
BlockHash = CalculateAlgorithmContext.BlockIndex.BlockHash,
BlockHeight = CalculateAlgorithmContext.BlockIndex.BlockHeight
};
do
{
if (_cacheCacheProvider.TryGetPieceWiseFunctionFromForkCacheByBlockIndex(blockIndex, out var value))
{
algorithm = value;
break;
}
var link = _chainBlockLinkService.GetCachedChainBlockLink(blockIndex.BlockHash);
blockIndex.BlockHash = link?.PreviousBlockHash;
blockIndex.BlockHeight--;
} while (blockIndex.BlockHash != null && blockIndex.BlockHeight >= minHeight);
return(algorithm ?? await GetDefaultPieceWiseFunctionAsync());
}
