lotus/build/params_shared.go
2020-06-23 16:01:10 -04:00

132 lines
3.2 KiB
Go

package build
import (
"math/big"
"sort"
"github.com/libp2p/go-libp2p-core/protocol"
"github.com/filecoin-project/specs-actors/actors/abi"
"github.com/filecoin-project/specs-actors/actors/builtin"
"github.com/filecoin-project/specs-actors/actors/builtin/miner"
"github.com/filecoin-project/lotus/node/modules/dtypes"
)
func DefaultSectorSize() abi.SectorSize {
szs := make([]abi.SectorSize, 0, len(miner.SupportedProofTypes))
for spt := range miner.SupportedProofTypes {
ss, err := spt.SectorSize()
if err != nil {
panic(err)
}
szs = append(szs, ss)
}
sort.Slice(szs, func(i, j int) bool {
return szs[i] < szs[j]
})
return szs[0]
}
// 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
// /////
// Consensus / Network
// Seconds
const AllowableClockDrift = 1
// Epochs
const ForkLengthThreshold = Finality
// Blocks (e)
var BlocksPerEpoch = uint64(builtin.ExpectedLeadersPerEpoch)
// Epochs
const Finality = miner.ChainFinalityish
const MessageConfidence = 5
// 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 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 TicketRandomnessLookback = 1
const WinningPoStSectorSetLookback = 10
// /////
// 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
// Size of signature verification cache
// 32k keeps the cache around 10MB in size, max
const VerifSigCacheSize = 32000
// ///////
// Limits
// TODO: If this is gonna stay, it should move to specs-actors
const BlockMessageLimit = 512
const BlockGasLimit = 100_000_000_000
var DrandConfig = dtypes.DrandConfig{
Servers: []string{
"https://pl-eu.testnet.drand.sh",
"https://pl-us.testnet.drand.sh",
"https://pl-sin.testnet.drand.sh",
},
ChainInfoJSON: `{"public_key":"922a2e93828ff83345bae533f5172669a26c02dc76d6bf59c80892e12ab1455c229211886f35bb56af6d5bea981024df","period":25,"genesis_time":1590445175,"hash":"138a324aa6540f93d0dad002aa89454b1bec2b6e948682cde6bd4db40f4b7c9b"}`,
}