Method getBlock

consensus/vbft/chain_store.go:171–188

(blockNum uint32)

}

func (self *ChainStore) getBlock(blockNum uint32) (*Block, error) {
	if blk, present := self.pendingBlocks[blockNum]; present {
		return blk.block, nil
	}
	block, err := self.db.GetBlockByHeight(uint32(blockNum))
	if err != nil {
		return nil, err
	}
	prevMerkleRoot := common.Uint256{}
	if blockNum > 1 {
		prevMerkleRoot, err = self.db.GetStateMerkleRoot(blockNum - 1)
		if err != nil {
			log.Errorf("GetStateMerkleRoot blockNum:%d, error :%s", blockNum, err)
			return nil, fmt.Errorf("GetStateMerkleRoot blockNum:%d, error :%s", blockNum, err)
		}
	}
	return initVbftBlock(block, prevMerkleRoot)
}