Code Walkthrough

Code Walkthrough - Following a block from the network socket to the hard drive

Note: All links to the code are based on a fixed revision, so we can link line numbers. Code might have changed by now, nonetheless use these revisions when doing updates to this document.

Preconditons

• the app was configured and started
• all services registered
• the discovery protocol discovered some nodes
• the peermanager successfully connected a node
• established an encrypted multiplexed session
• and created a ETHProtocol instance for this peer
• we are waiting for ingress data in the peer connection

Some data arrives

We are waiting for data on the socket: https://github.com/ethereum/pydevp2p/blob/6577016a6f50ce220e20f66c2c8c1eb6dc271b9c/devp2p/peer.py#L208

We add the (partitial) message to the MultiplexedSession: https://github.com/ethereum/pydevp2p/blob/6577016a6f50ce220e20f66c2c8c1eb6dc271b9c/devp2p/peer.py#L223