In the next commit, I'm going to squash all the changes in the LES.
This commit just sets the directory tree to its final state, so the
diffs in the follow up commits are easier to review.
Please note that eth.nim was renamed to eth_protocol.nim, because
it's not advisable to have a module name that shares the name of
a protocol identifier (this creates hard to figure out ambiguity
errors)
* Perform per-protocol handshakes after connecting
* Initialize the per-protocol Peer and Network states properly
* Add an `EthereumNode` object that can be configured with specific
capabilities and connected to a specific network.
This was done because a cycle was formed between the structures
of the three modules:
- A Peer holds a reference to its Network
- The Network holds a reference to its PeerPool
- The PeerPool keeps a table of connected Peers
I could have resolved the issue by introducing a new types module,
but it would have required all of the currently private fields to
become public (due to lack of package-level visibility in Nim).
Instead I decided to merge the modules because they were relatively
small anyway. Please note that the former `P2PServer` type is now
called `NetworkConnection`. There are slight changes in the APIs
that will be carried out in Nimbus when merging this.
* Make all handlers async
* Added a new `requestResponse` construct that allows you to wait
for the results of a particular request
* Introduced an optional `NetworkState` type for the protocol
* The semantics of `nextMsg` has changed. See the notes in the README
Zahary Karadjov
Yuriy Glukhov
cheatfate