131 lines
2.4 KiB
Go
131 lines
2.4 KiB
Go
package build
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import (
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"math/big"
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)
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// Core network constants
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// /////
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// Storage
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const UnixfsChunkSize uint64 = 1 << 20
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const UnixfsLinksPerLevel = 1024
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var SectorSizes = []uint64{
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1 << 10,
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16 << 20,
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256 << 20,
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1 << 30,
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}
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func SupportedSectorSize(ssize uint64) bool {
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for _, ss := range SectorSizes {
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if ssize == ss {
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return true
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}
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}
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return false
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}
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// /////
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// Payments
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// Blocks
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const PaymentChannelClosingDelay = 6 * 60 * 2 // six hours
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// /////
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// Consensus / Network
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// Seconds
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const AllowableClockDrift = BlockDelay * 2
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// Blocks
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const ForkLengthThreshold = Finality
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// Blocks (e)
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const BlocksPerEpoch = 5
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// Blocks
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const Finality = 500
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// constants for Weight calculation
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// The ratio of weight contributed by short-term vs long-term factors in a given round
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const WRatioNum = int64(1)
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const WRatioDen = 2
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// /////
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// Proofs
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// PoStChallangeTime sets the window in which post computation should happen
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// Blocks
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const PoStChallangeTime = ProvingPeriodDuration - 6
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// PoStRandomnessLookback is additional randomness lookback for PoSt computation
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// To compute randomness epoch in a given proving period:
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// RandH = PPE - PoStChallangeTime - PoStRandomnessLookback
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//
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// Blocks
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const PoStRandomnessLookback = 1
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// Blocks
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const SealRandomnessLookback = Finality
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// Blocks
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const SealRandomnessLookbackLimit = SealRandomnessLookback + 2000
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// 1 / n
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const SectorChallengeRatioDiv = 25
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// /////
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// Mining
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// Blocks
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const EcRandomnessLookback = 300
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const FallbackPoStBegin = 1000
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const SlashablePowerDelay = 2000
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const PowerCollateralProportion = 5
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const PerCapitaCollateralProportion = 1
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const CollateralPrecision = 1000
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// Blocks
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const InteractivePoRepDelay = 10
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// /////
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// Devnet settings
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const TotalFilecoin = 2_000_000_000
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const MiningRewardTotal = 1_400_000_000
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const InitialRewardStr = "153856861913558700202"
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var InitialReward *big.Int
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const FilecoinPrecision = 1_000_000_000_000_000_000
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// six years
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// Blocks
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const HalvingPeriodBlocks = 6 * 365 * 24 * 60 * 2
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// TODO: Move other important consts here
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func init() {
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InitialReward = new(big.Int)
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var ok bool
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InitialReward, ok = InitialReward.
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SetString(InitialRewardStr, 10)
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if !ok {
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panic("could not parse InitialRewardStr")
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}
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}
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// Sync
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const BadBlockCacheSize = 1 << 15
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// assuming 4000 blocks per round, this lets us not lose any messages across a
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// 10 block reorg.
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const BlsSignatureCacheSize = 40000
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