86 lines
2.5 KiB
Nim
86 lines
2.5 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2020 Status Research & Development GmbH
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# Licensed and distributed under either of
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# * MIT license (license terms in the root directory or at https://opensource.org/licenses/MIT).
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# * Apache v2 license (license terms in the root directory or at https://www.apache.org/licenses/LICENSE-2.0).
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# at your option. This file may not be copied, modified, or distributed except according to those terms.
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# Common routines for a BeaconNode and a BeaconValidator node
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import
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# Standard library
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tables,
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# Nimble packages
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chronos, json_rpc/rpcserver, metrics,
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chronicles,
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# Local modules
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spec/[datatypes, crypto, digest],
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conf, time, beacon_chain_db,
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attestation_pool, block_pool, eth2_network,
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beacon_node_types, mainchain_monitor, request_manager,
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sync_manager
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# This removes an invalid Nim warning that the digest module is unused here
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# It's currently used for `shortLog(head.blck.root)`
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type Eth2Digest = digest.Eth2Digest
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type
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RpcServer* = RpcHttpServer
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KeyPair* = eth2_network.KeyPair
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BeaconNode* = ref object
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nickname*: string
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network*: Eth2Node
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netKeys*: KeyPair
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requestManager*: RequestManager
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db*: BeaconChainDB
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config*: BeaconNodeConf
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attachedValidators*: ValidatorPool
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blockPool*: BlockPool
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attestationPool*: AttestationPool
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mainchainMonitor*: MainchainMonitor
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beaconClock*: BeaconClock
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rpcServer*: RpcServer
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forkDigest*: ForkDigest
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syncManager*: SyncManager[Peer, PeerID]
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topicBeaconBlocks*: string
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topicAggregateAndProofs*: string
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forwardSyncLoop*: Future[void]
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onSecondLoop*: Future[void]
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genesisSnapshotContent*: string
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const
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MaxEmptySlotCount* = uint64(10*60) div SECONDS_PER_SLOT
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# Metrics
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declareGauge beacon_head_root,
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"Root of the head block of the beacon chain"
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proc updateHead*(node: BeaconNode): BlockRef =
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# Check pending attestations - maybe we found some blocks for them
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node.attestationPool.resolve()
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# Grab the new head according to our latest attestation data
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let newHead = node.attestationPool.selectHead()
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# Store the new head in the block pool - this may cause epochs to be
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# justified and finalized
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node.blockPool.updateHead(newHead)
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beacon_head_root.set newHead.root.toGaugeValue
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# TODO - deactivated
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# Cleanup the fork choice v2 if we have a finalized head
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# node.attestationPool.pruneBefore(node.blockPool.finalizedHead)
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newHead
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template findIt*(s: openarray, predicate: untyped): int64 =
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var res = -1
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for i, it {.inject.} in s:
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if predicate:
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res = i
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break
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res
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