Ethereum: how do you To understand how Bitcoin finds colleagues, we first take a look at the code base. The main Bitcoin code is open with a MIT license, which provides access to algorithms and underlying data structures. Here are some key components that allow the discovery of peers: Networkmanager `Networkmaningis is a fundamental component responsible for the management of connections between the nodes on the network. He is responsible for the creation and maintenance of connections with other nodes.
c
// Src/Daemon/Main.c (Riga 123)
void daemon_addnode (intarc, char *arv []) {
// …
Networkmanager (Network_manager, Null);
}
`
NetworkManager it creates a new connection to the network using CreateConnection ():
`c
// Src/Daemon/Main.c (line 143)
IT Creeteconnection (Const Char Hostname, Const Char Port) {
// …
return addper (hostname, port, null, null);
}
Int addper (Const Char hostname, int port, const char path, const void *data) {
// …
Return peer_addpeer (Network_manager-> knots [0], host name, door, path, data);
}
`
Theaddper () function is called by the client to add a new node to the network. It takes the name Host, the door and the route and the optional data as topics.
Peerlist
Peerlist is a series of peers that are currently connected to the network:
`c
// Src/Daemon/Main.c (line 172)
Stuct peer_list {
Peer peer peers;
size_t npeers;
};
`
Theaddper () function is a newpeer 'structure and adds it to the' peerlist '.
Peermanager
Peermanageris is responsible for managing multiple connections. Provides methods to create, remove and manage colleagues:
c
// SRC/Daemon/Main.c (line 193)
Stuct peer_manager {
Struction Network *Net;
Stuct peer_list *peer;
};
`
Theaddper () function is a new peer and adds it to the list.
Peerdata
`Peerdata is used to preserve metadata on each peer:
`c
// Src/Daemon/Main.c (Riga 201)
Stuct peer_data {
Uint256 balance;
Uint256 Transaction_Count;
};
`
How Bitcoin finds peers?
![Ethereum: How does bitcoin find peers? [duplicate]](https://inspiredailyhub.com/wp-content/uploads/2025/02/7bded78d.png)
Bitcoin uses a combination of algorithms and data structures to find colleagues on the network. Here is a simplified overview of the process:
- Node Discovery : When performing the Bitcoin client, send a package of discovery to all the nodes on the network usingGetdiscoverypacket ()
.
- Update of the Peer list: the node that receives the discovery package updates the peer list and adds any new peers from the package to the list.
- Query Peerlist : The client periodically questions the peer list for available peers:
c
// Src/Daemon/Main.c (Riga 221)
Stuct peer_list *peer_list_getpeerlist ();
void peer_list_querry (strutt peer_list *peer) {
// …
}
`
- Node selection : based on the available peers, the client selects a node to connect with the use ofselectnode ()
.
5
- Update of the Peer list: After establishing a connection, the peer list is updated to reflect any changes in the network:
c
// Src/Daemon/Main.c (line 236)
void peer_list_update () {
// …
}
`
Conclusion
In summary, the mechanism of discovery between Bitcoin is based on "Networkmanager",peerlist, peerdata` and other components to manage the connections between the nodes.
