nimbus-eth2/beacon_chain/spec/network.nim

24 lines
1.1 KiB
Nim

# beacon_chain
# Copyright (c) 2018-2020 Status Research & Development GmbH
# Licensed and distributed under either of
# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
# at your option. This file may not be copied, modified, or distributed except according to those terms.
import strformat
const
topicBeaconBlocks* = "/eth2/beacon_block/ssz"
topicAttestationSuffix* = "_beacon_attestation/ssz"
topicVoluntaryExits* = "/eth2/voluntary_exit/ssz"
topicProposerSlashings* = "/eth2/proposer_slashing/ssz"
topicAttesterSlashings* = "/eth2/attester_slashing/ssz"
# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/p2p-interface.md#configuration
ATTESTATION_SUBNET_COUNT* = 64
func getAttestationTopic*(committeeIndex: uint64): string =
# https://github.com/ethereum/eth2.0-specs/blob/v0.10.1/specs/phase0/validator.md#broadcast-attestation
let topicIndex = committeeIndex mod ATTESTATION_SUBNET_COUNT
&"/eth2/index{topicIndex}{topicAttestationSuffix}"