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71b9005f34
* feat: add api xdpos_getBlockInfoByEpochNum * feat: add cache round2epochBlockInfo * fix: round2epochBlockInfo contains round now * feat: binary search in GetBlockByEpochNumber * fix: change some code back, refine style
33 lines
1.3 KiB
Go
33 lines
1.3 KiB
Go
package utils
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import (
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"github.com/XinFinOrg/XDPoSChain/common/hexutil"
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"github.com/XinFinOrg/XDPoSChain/core/types"
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)
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// XDPoS delegated-proof-of-stake protocol constants.
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var (
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EpochLength = uint64(900) // Default number of blocks after which to checkpoint and reset the pending votes
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ExtraVanity = 32 // Fixed number of extra-data prefix bytes reserved for signer vanity
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ExtraSeal = 65 // Fixed number of extra-data suffix bytes reserved for signer seal
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NonceAuthVote = hexutil.MustDecode("0xffffffffffffffff") // Magic nonce number to vote on adding a new signer
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NonceDropVote = hexutil.MustDecode("0x0000000000000000") // Magic nonce number to vote on removing a signer.
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UncleHash = types.CalcUncleHash(nil) // Always Keccak256(RLP([])) as uncles are meaningless outside of PoW.
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InmemoryEpochs = 5 * EpochLength // Number of mapping from block to epoch switch infos to keep in memory
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InmemoryRound2Epochs = 65536 // Number of mapping of epoch switch blocks for quickly locating epoch switch block. One epoch ~ 0.5hours, so 65536 epochs ~ 3.7 years. And it uses ~ 10MB memory.
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)
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const (
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InmemorySnapshots = 128 // Number of recent vote snapshots to keep in memory
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BlockSignersCacheLimit = 9000
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M2ByteLength = 4
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)
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const (
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PeriodicJobPeriod = 60
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PoolHygieneRound = 10
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)
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