Add existent tables to blockchain

prepares rollback query

Verify if base transaction is still valid. We verify transaction before to add it to a blockchain A transaction itself is in a pool at this monent Che

check custom rule for the table about permissions

Checks if this is good time for this node to make a block In this version it is always true

check if this query must be added to transaction. all SELECT queries must be ignored. and some update queries can be ignored too. such queries are jus

checks if this query is syntax correct

Check if there are abough unapproved transactions to make a block

Add a node to connections

Show history for a wallet

Show all wallets and balances for each of them

Cancel transaction if it is not yet in a block

Creates new wallet and saves it in a wallets file Wallet is a pare of keys

Drops last block from the top of blockchain

To create full dump of a blockchain

Export consensus config to given destination. This can be used for distribution of an app

Exports wallets to given file path

Requests a node for balance and displays it. for given address

Display balance for address

Prepare wallet, import BC and start interactive. If BC exists we just start a server (do nothign before it)

Imports wallets from given wallets file

List addresses (wallets) stored in the wallets file

Lists wallets and balance for each wallet

Try to mine a block if there is anough unapproved transactions

Print full blockchain

Pull updates from all other known nodes

Reindex cache of transactions information

Remove a node from connections

To restore blockchain from full dump to empty database

Send money command. Connects to a node to do this operation

Execute new SQL command

Send money command. Connects to a node to do this operation

Send money to other address

Displays history for a wallet (address) . All transactions

Displays list of nodes (connections)

Shows server state

Show unspent transactions outputs for address

Show contents of a cache of unapproved transactions (transactions pool)

Shows list of unspent transactions for an address

Create node server object. It will set tcp port and handle requests from other nodes

DecodeOkResponse decodes ERR_Packet from server. Part of basic packet structure shown below. int<3> PacketLength int<1> PacketNumber int<1> PacketTyp

DecodeFieldTypeDouble decodes MYSQL_TYPE_DOUBLE field See https://mariadb.com/kb/en/mariadb/resultset/#field-types

DecodeFieldTypeLongLong decodes MYSQL_TYPE_LONGLONG field See https://mariadb.com/kb/en/mariadb/resultset/#field-types

DecodeFieldTypeString decodes MYSQL_TYPE_VAR_STRING field (length-encoded string) See https://mariadb.com/kb/en/mariadb/resultset/#field-types

DecodeQueryRequest decodes COM_QUERY and COM_STMT_PREPARE requests from client. Basic packet structure shown below. See https://mariadb.com/kb/en/mari

Delete record from chain table

Makes new block, without a hash. Only finds transactions to add to a block

encode value TODO maybe it is better to have base64 here ?

return only tables that should be managed with blockchain. skip tables ignored in consensus config

Is used for cases when it is needed to do something with all cached transactions. For example, to print them.

execute callback function for every record in unspent outputs

Calculates pending balance of address.

Finds a transaction where a refID was last updated or which can be used as a base Firstly looks in a pool of transactions ,if not found, looks in an i

Findbase TX based on TIP This is for case when a TX is created based on a block that is not in main chain of blocks (uncle block)

Init block maker object. It is used to make new blocks

Verifies transaction inputs. Check if that are real existent transactions. And that outputs are not yet used If some transaction is not in blockchain,

Create tx index object to use in this structure

* * Creates a client object */

Build requestPacketParser object

Build responsePacketParser object

Create row packet

Init SQL transactions manager

Add new node to list of nodes

Received the lst of nodes from some other node. add missed nodes to own nodes list

Block received from other node

Checks if block exists and returns True or False Other node requests to know if block exists before to send new block to this node

handleConnection ...

handle received data. It can be one way command or a request for some data

Balance for address. Complex balance

Returns block info. This is used for updates pulling

* * Request to get list of blocks hashes . * It can contain a starting block hash to return data from it * If no that starting hash, then data from a

* * Request to get all blocks up to given block. * Nodes use it to load missed blocks from other node. * If requested bock is not found in BC then TOP

Handle request from a new node to get consensus information Returns consensus config if any and consensus module ( TODO )

* * Response on request to get full body of a block or transaction */

* * Handle request from a new node where a blockchain is not yet inted. * This s ed to get the first part of blocks to init local blockchain DB */

Find and return history of transactions for wallet address

Returns list of nodes from contacts on this node

Return node state, including pending blocks to load

Returns transaction from a pool in sync request

Find and return the list of unspent transactions

Other node requests for last changes on this server and expects to get response on real time

* * Other node posted info about new blocks or new transactions * This contains only a hash of a block or ID of a transaction * If such block or trans

Remove node from list of nodes