lotus/build/params_shared.go
2020-04-03 19:45:48 +02:00

102 lines
2.1 KiB
Go

package build
import (
"math/big"
"github.com/libp2p/go-libp2p-core/protocol"
"github.com/filecoin-project/lotus/node/modules/dtypes"
)
// Core network constants
func BlocksTopic(netName dtypes.NetworkName) string { return "/fil/blocks/" + string(netName) }
func MessagesTopic(netName dtypes.NetworkName) string { return "/fil/msgs/" + string(netName) }
func DhtProtocolName(netName dtypes.NetworkName) protocol.ID {
return protocol.ID("/fil/kad/" + string(netName))
}
// /////
// Storage
const UnixfsChunkSize uint64 = 1 << 20
const UnixfsLinksPerLevel = 1024
const SectorChallengeRatioDiv = 25
// /////
// Payments
// Epochs
const PaymentChannelClosingDelay = 6 * 60 * 60 / BlockDelay // six hours
// /////
// Consensus / Network
// Seconds
const AllowableClockDrift = 1
// Epochs
const ForkLengthThreshold = Finality
// Blocks (e)
const BlocksPerEpoch = 5
// Epochs
const Finality = 500
// constants for Weight calculation
// The ratio of weight contributed by short-term vs long-term factors in a given round
const WRatioNum = int64(1)
const WRatioDen = 2
// /////
// Proofs
// Epochs
const FallbackPoStConfidence = 6
// Epochs
const SealRandomnessLookback = Finality
// Epochs
const SealRandomnessLookbackLimit = SealRandomnessLookback + 2000 // TODO: Get from spec specs-actors
// Maximum lookback that randomness can be sourced from for a seal proof submission
const MaxSealLookback = SealRandomnessLookbackLimit + 2000 // TODO: Get from specs-actors
// /////
// Mining
// Epochs
const EcRandomnessLookback = 1
// /////
// Devnet settings
const TotalFilecoin = 2_000_000_000
const MiningRewardTotal = 1_400_000_000
const FilecoinPrecision = 1_000_000_000_000_000_000
var InitialRewardBalance *big.Int
// TODO: Move other important consts here
func init() {
InitialRewardBalance = big.NewInt(MiningRewardTotal)
InitialRewardBalance = InitialRewardBalance.Mul(InitialRewardBalance, big.NewInt(FilecoinPrecision))
}
// Sync
const BadBlockCacheSize = 1 << 15
// assuming 4000 messages per round, this lets us not lose any messages across a
// 10 block reorg.
const BlsSignatureCacheSize = 40000
// ///////
// Limits
const BlockMessageLimit = 512