First item. If item available return true, otherwise return false Last() bool //Last item. If item available return true, otherwise return f

ToHexString convert []byte to hex string

NewPeer return new peer without publickey initial

Sign returns the signature of data using privKey

ReadByte implements the io.ByteReader interface.

GetState return sync state

NewTree returns a CompactMerkleTree instance

set address

UpdateInfo update peer`s information

AddressParseFromBytes returns parsed Address

Execute is smart contract execute manager According different vm type to launch different service

RegisterMsgHandler registers msg handler with the msg type

Serialize payload data

Register id with account acc

just to avoid dos AddressFromBase58 returns Address from encoded base58 string

startOffset : start timestamp offset from genesis block endOffset : end timestamp offset from genesis block

Commit event notify to store

HexToBytes convert hex string to []byte

Commit batch to store

FileExisted checks whether filename exists in filesystem

* ****************************************************************************** * public func for outside calling ********************************

param hashes will be used as workspace