Understand the Bitcoin-QT source code: a step by step tutorial
The Bitcoin-QT source code is a crucial component of the Bitcoin Blockchain project, and although it is not possible to create a complete guide that covers all aspects of its architecture, we will provide a tutorial of the key components and concepts.
Introduction to Bitcoin-QT
Bitcoin-QT is an open source implementation of the Bitcoin protocol, written in C ++ by Satoshi Nakamoto. It is the most used version of Bitcoin software, with most Bitcoin nodes that are executed on this platform.
General description of the source code structure
The Bitcoin-QT source code can be divided into several layers:
1. Bitcoin.H YBitcoin.CPP
These heading files provide the interface to interact with the bitcoin block chain. They define data structures, functions and macros used throughout the project.
Bitcoin.H:
`C
#ifndef bitcoin_h
#Define bitcoin_h
#Include
#Include "blocks.h"
// Data structure that represents a block
Typedef Struct {
int64_t hash;
Uint256_data data;
} Block;
// works to generate a new block
void genesis_block ();
#Endif // bitcoin_h
Bitcoin.CPP:
C
#include "Bitcoin.H"
#Include
// works to create a new block
void create_new_block (block *block) {
// Generate the block header
Block head heading;
// ...
}
// Function to update block data
void update_block_data (block *block, uint256_data new_data) {
// Update the hash and block data
Block-> hash = ...;
Block-> data = ...;
}
2.
This heading file defines a block structure and provides functions to create blocks, update block data and generate block headers.
Blocks.H:
C
#ifndef blocks_h
#define blocks_h
#include "Bitcoin.H"
// Structure that represents a block
Typedef Struct {
int64_t hash;
Uint256_data data;
} Block;
// works to generate block header
Blockheader *generate_block_header ();
#Endif // Blocks_h
Block.CPP:
C
#Include "blocks.h"
#Include
// works to create a new block header
Blockheader *create_new_block_header () {
// Generate the block header
Block header;
// ...
}
// Function to update block data
void update_block_data (block *block, uint256_data new_data) {
// Update the hash and block data
Block-> hash = ...;
Block-> data = ...;
}
3.Network.HY Net.CPP
This heading file defines network -related functionality and provides functions to create connections to other nodes.
Network.H:
C
#ifndef network_h
#define network_h
#include "Bitcoin.H"
// Structure that represents a connection to another node
Typedef Struct {
// ...
} Connection;
// works to create a new connection
Connection *create_new_connection ();
#Endif // Network_h
Net.CPP:
C
#Include "network.h"
#Include
// Function to update block data in the memory of another node
void update_block_data_in_node (connection connection, block ) {
// Update the hash and block data in the memory of the other node
connection-> hash = ...;
connection-> data = ...;
}
Example of tutorial
We believe a simple example to demonstrate how to use the Bitcoin-QT source code. We will create a new block, update your data and then generate a block header.
` C
// Create a new block structure
Block *Block = Malloc (sizeof (block));
// …
// Update block data
UPDATE_BLOCK_DATA (BLOCK, 0X1234567890ABCDEF);
// Generate the block header
Blockheader *Header = create_new_block_header ();
// …