Golang IHash.Bytes方法代碼示例

func (db *Overlay) FetchAllEntriesByChainID(chainID interfaces.IHash) ([]interfaces.IEBEntry, error) {
	list, err := db.FetchAllBlocksFromBucket(chainID.Bytes(), entryBlock.NewEntry())
	if err != nil {
		return nil, err
	}
	return toEntryList(list), nil
}

// End of Block means packing the current block away, and setting
// up the next
func (fs *FactoidState) ProcessEndOfBlock(state interfaces.IState) {
	var hash, hash2 interfaces.IHash

	if fs.GetCurrentBlock() == nil {
		panic("Invalid state on initialization")
	}

	hash = fs.CurrentBlock.GetHash()
	hash2 = fs.CurrentBlock.GetLedgerKeyMR()

	state.GetCurrentDirectoryBlock().GetDBEntries()[2].SetKeyMR(hash)

	if err := state.GetDB().SaveFactoidBlockHead(fs.CurrentBlock); err != nil {
		panic(err)
	}

	state.SetPrevFactoidKeyMR(hash)

	fs.CurrentBlock = block.NewFBlock(fs.GetFactoshisPerEC(), state.GetDBHeight()+1)

	t := coinbase.GetCoinbase(primitives.GetTimeMilli())
	err := fs.CurrentBlock.AddCoinbase(t)
	if err != nil {
		panic(err.Error())
	}
	fs.UpdateTransaction(t)

	if hash != nil {
		fs.CurrentBlock.SetPrevKeyMR(hash.Bytes())
		fs.CurrentBlock.SetPrevLedgerKeyMR(hash2.Bytes())
	}

}

func addServerSigningKey(chainID interfaces.IHash, key interfaces.IHash, height uint32, st *State) {
	AuthorityIndex := st.AddAuthorityFromChainID(chainID)
	if st.IdentityChainID.IsSameAs(chainID) && len(st.serverPendingPrivKeys) > 0 {
		for i, pubKey := range st.serverPendingPubKeys {
			pubData, err := pubKey.MarshalBinary()
			if err != nil {
				break
			}
			if bytes.Compare(pubData, key.Bytes()) == 0 {
				st.serverPrivKey = st.serverPendingPrivKeys[i]
				st.serverPubKey = st.serverPendingPubKeys[i]
				if len(st.serverPendingPrivKeys) > i+1 {
					st.serverPendingPrivKeys = append(st.serverPendingPrivKeys[:i], st.serverPendingPrivKeys[i+1:]...)
					st.serverPendingPubKeys = append(st.serverPendingPubKeys[:i], st.serverPendingPubKeys[i+1:]...)
				} else {
					st.serverPendingPrivKeys = st.serverPendingPrivKeys[:i]
					st.serverPendingPubKeys = st.serverPendingPubKeys[:i]
				}
				break
			}
		}
	}
	// Add Key History
	st.Authorities[AuthorityIndex].KeyHistory = append(st.Authorities[AuthorityIndex].KeyHistory, struct {
		ActiveDBHeight uint32
		SigningKey     primitives.PublicKey
	}{height, st.Authorities[AuthorityIndex].SigningKey})
	// Replace Active Key
	st.Authorities[AuthorityIndex].SigningKey = primitives.PubKeyFromString(key.String())
}

// HashMerkleBranches takes two hashes, treated as the left and right tree
// nodes, and returns the hash of their concatenation.  This is a helper
// function used to aid in the generation of a merkle tree.
func HashMerkleBranches(left interfaces.IHash, right interfaces.IHash) interfaces.IHash {
	// Concatenate the left and right nodes.
	var barray []byte = make([]byte, constants.ADDRESS_LENGTH*2)
	copy(barray[:constants.ADDRESS_LENGTH], left.Bytes())
	copy(barray[constants.ADDRESS_LENGTH:], right.Bytes())

	newSha := Sha(barray)
	return newSha
}

func (db *Overlay) FetchPrimaryIndexBySecondaryIndex(secondaryIndexBucket []byte, key interfaces.IHash) (interfaces.IHash, error) {
	block, err := db.DB.Get(secondaryIndexBucket, key.Bytes(), new(primitives.Hash))
	if err != nil {
		return nil, err
	}
	if block == nil {
		return nil, nil
	}
	return block.(interfaces.IHash), nil
}

func (db *Overlay) FetchBlock(bucket []byte, key interfaces.IHash, dst interfaces.DatabaseBatchable) (interfaces.DatabaseBatchable, error) {
	block, err := db.DB.Get(bucket, key.Bytes(), dst)
	if err != nil {
		return nil, err
	}
	if block == nil {
		return nil, nil
	}
	return block.(interfaces.DatabaseBatchable), nil
}

func (db *Overlay) FetchPaidFor(hash interfaces.IHash) (interfaces.IHash, error) {
	block, err := db.DB.Get(PAID_FOR, hash.Bytes(), new(primitives.Hash))
	if err != nil {
		return nil, err
	}
	if block == nil {
		return nil, nil
	}
	return block.(interfaces.IHash), nil
}

func (db *Overlay) FetchIncludedIn(hash interfaces.IHash) (interfaces.IHash, error) {
	block, err := db.DB.Get(INCLUDED_IN, hash.Bytes(), new(primitives.Hash))
	if err != nil {
		return nil, err
	}
	if block == nil {
		return nil, nil
	}
	return block.(interfaces.IHash), nil
}

// Compare two Hashes
func (a Hash) IsSameAs(b interfaces.IHash) bool {
	if b == nil {
		return false
	}

	if bytes.Compare(a[:], b.Bytes()) == 0 {
		return true
	}

	return false
}

func (db *Overlay) SavePaidFor(entry, ecEntry interfaces.IHash) error {
	if entry == nil || ecEntry == nil {
		return nil
	}
	batch := []interfaces.Record{}

	batch = append(batch, interfaces.Record{PAID_FOR, entry.Bytes(), ecEntry})

	err := db.DB.PutInBatch(batch)
	if err != nil {
		return err
	}

	return nil
}

func (db *Overlay) SaveIncludedIn(entry, block interfaces.IHash) error {
	if entry == nil || block == nil {
		return nil
	}
	batch := []interfaces.Record{}

	batch = append(batch, interfaces.Record{INCLUDED_IN, entry.Bytes(), block})

	err := db.DB.PutInBatch(batch)
	if err != nil {
		return err
	}

	return nil
}

// Returns true and the index of this server, or false and the insertion point for this server
func (p *ProcessList) GetAuditServerIndexHash(identityChainID interfaces.IHash) (bool, int) {

	if p == nil {
		return false, 0
	}

	p.SortAuditServers()

	scid := identityChainID.Bytes()

	for i, fs := range p.AuditServers {
		// Find and remove
		if bytes.Compare(scid, fs.GetChainID().Bytes()) == 0 {
			return true, i
		}
	}
	return false, len(p.AuditServers)
}

// FetchHeadMRByChainID gets an index of the highest block from the database.
func (db *Overlay) FetchHeadIndexByChainID(chainID interfaces.IHash) (interfaces.IHash, error) {
	if chainID == nil {
		return nil, nil
	}

	bucket := []byte{byte(CHAIN_HEAD)}
	key := chainID.Bytes()

	block, err := db.DB.Get(bucket, key, new(primitives.Hash))
	if err != nil {
		return nil, err
	}
	if block == nil {
		return nil, nil
	}

	return block.(interfaces.IHash), nil
}

// FetchAllEBlocksByChain gets all of the blocks by chain id
func (db *Overlay) FetchAllEBlocksByChain(chainID interfaces.IHash) ([]interfaces.IEntryBlock, error) {
	bucket := append([]byte{byte(ENTRYBLOCK_CHAIN_NUMBER)}, chainID.Bytes()...)
	keyList, err := db.FetchAllBlocksFromBucket(bucket, new(primitives.Hash))
	if err != nil {
		return nil, err
	}

	list := make([]interfaces.IEntryBlock, len(keyList))

	for i, v := range keyList {
		block, err := db.FetchEBlockByKeyMR(v.(interfaces.IHash))
		if err != nil {
			return nil, err
		}
		list[i] = block
	}

	return list, nil
}

func (db *Overlay) SavePaidForMultiFromBlock(block interfaces.IEntryCreditBlock, checkForDuplicateEntries bool) error {
	if block == nil {
		return nil
	}
	batch := []interfaces.Record{}

	for _, entry := range block.GetBody().GetEntries() {
		if entry.ECID() != entryCreditBlock.ECIDChainCommit && entry.ECID() != entryCreditBlock.ECIDEntryCommit {
			continue
		}
		var entryHash interfaces.IHash

		if entry.ECID() == entryCreditBlock.ECIDChainCommit {
			entryHash = entry.(*entryCreditBlock.CommitChain).EntryHash
		}
		if entry.ECID() == entryCreditBlock.ECIDEntryCommit {
			entryHash = entry.(*entryCreditBlock.CommitEntry).EntryHash
		}

		if checkForDuplicateEntries == true {
			loaded, err := db.Get(PAID_FOR, entryHash.Bytes(), primitives.NewZeroHash())
			if err != nil {
				return err
			}
			if loaded != nil {
				continue
			}
		}
		batch = append(batch, interfaces.Record{PAID_FOR, entryHash.Bytes(), entry.Hash()})
	}
	if len(batch) == 0 {
		return nil
	}

	err := db.DB.PutInBatch(batch)
	if err != nil {
		return err
	}

	return nil
}