57 lines
1.7 KiB
Nim
57 lines
1.7 KiB
Nim
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# Nimbus
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# Copyright (c) 2018 Status Research & Development GmbH
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# Licensed under either of
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# * Apache License, version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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# http://www.apache.org/licenses/LICENSE-2.0)
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# * MIT license ([LICENSE-MIT](LICENSE-MIT) or
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# http://opensource.org/licenses/MIT)
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# at your option. This file may not be copied, modified, or distributed except
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# according to those terms.
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##
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## Clique PoA Conmmon Config
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## =========================
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##
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## Constants used by Clique proof-of-authority consensus protocol, see
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## `EIP-225 <https://github.com/ethereum/EIPs/blob/master/EIPS/eip-225.md>`_
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## and
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## `go-ethereum <https://github.com/ethereum/EIPs/blob/master/EIPS/eip-225.md>`_
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##
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import
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../../db/db_chain,
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./clique_defs,
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./ec_recover,
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random,
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times
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const
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prngSeed = 42
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type
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CliqueCfg* = ref object
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dbChain*: BaseChainDB
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signatures*: EcRecover ## Recent block signatures to speed up mining
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period*: Duration ## time between blocks to enforce
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epoch*: uint64 ## Epoch length to reset votes and checkpoint
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prng*: Rand ## PRNG state
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{.push raises: [Defect,CatchableError].}
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# ------------------------------------------------------------------------------
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# Public functions
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# ------------------------------------------------------------------------------
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proc newCliqueCfg*(dbChain: BaseChainDB;
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period = BLOCK_PERIOD; epoch = EPOCH_LENGTH): CliqueCfg =
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CliqueCfg(
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dbChain: dbChain,
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period: period,
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epoch: epoch,
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signatures: initEcRecover(),
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prng: initRand(prngSeed))
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# ------------------------------------------------------------------------------
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# End
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# ------------------------------------------------------------------------------
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