This is a non functional change which consolidates the various packages
under metrics into the top level package now that the dead code is
removed.
It is a precursor to the removal of Victoria metrics after which all
erigon metrics code will be contained in this single package.
Improve p2p error handling to propagate errors
from the origin up the call chain the Server peer removal code
using a new PeerError type containing a DiscReason and a more detailed
description.
The origin can be tracked down using PeerErrorCode (code) and DiscReason
(reason)
which looks like this in the log:
> [TRACE] [08-28|16:33:40.205] Removing p2p peer peercount=0
url=enode://d399f4b...@1.2.3.4:30303 duration=6.901ms
err="PeerError(code=remote disconnect reason, reason=too many peers,
err=<nil>, message=Peer.run got a remote DiscReason)"
The disconnect message could either be a plain integer, or a list with
one integer element. We were encoding it as a plain integer, but
decoding as a list. Change this to be able to decode any format.
Most places that used this method were cutting off the 1st byte.
Refactor this idea to a common place.
* better naming: MarshalPubkey matches existing UnmarshalPubkey
* "Std" suffix for the ANSI standard encoding without cut off
* docs
This change moves the RLPx protocol implementation into a separate package,
p2p/rlpx. The new package can be used to establish RLPx connections for
protocol testing purposes.
Co-authored-by: Felix Lange <fjl@twurst.com>
# Conflicts:
# p2p/rlpx/rlpx.go
# p2p/rlpx/rlpx_test.go
# p2p/server_test.go
