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https://github.com/status-im/nimbus-eth2.git
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f90b2b8b1f
Similar to the existing `RewardInfo`, this PR adds the infrastructure needed to export epoch processing information from altair+. Because accounting is done somewhat differently, the PR uses a fork-specific object to extrct the information in order to make the cost on the spec side low. * RewardInfo -> EpochInfo, ForkedEpochInfo * use array for computing new sync committee * avoid repeated total active balance computations in block processing * simplify proposer index check * simplify epoch transition tests * pre-compute base increment and reuse in epoch processing, and a few other small optimizations This PR introduces the type and does the heavy lifting in terms of refactoring - the tools that use the accounting will need separate PR:s (as well as refinements to the exportred information)
43 lines
1.7 KiB
Nim
43 lines
1.7 KiB
Nim
# beacon_chain
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# Copyright (c) 2018-2021 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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import
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# Specs
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../../beacon_chain/spec/[
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forks, presets, state_transition, state_transition_epoch],
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../../beacon_chain/spec/datatypes/phase0
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proc processSlotsUntilEndCurrentEpoch(state: var ForkedHashedBeaconState) =
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# Process all slots until the end of the last slot of the current epoch
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var
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cache = StateCache()
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info = ForkedEpochInfo()
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let slot =
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getStateField(state, slot) + SLOTS_PER_EPOCH -
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(getStateField(state, slot) mod SLOTS_PER_EPOCH)
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# Transition to slot before the epoch state transition
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discard process_slots(defaultRuntimeConfig, state, slot - 1, cache, info, {})
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# For the last slot of the epoch,
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# only process_slot without process_epoch
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# (see process_slots()) - state.root is invalid after here!
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process_slot(state.hbsPhase0.data, getStateRoot(state))
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proc transitionEpochUntilJustificationFinalization*(state: var ForkedHashedBeaconState) =
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# Process slots and do the epoch transition until crosslinks
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processSlotsUntilEndCurrentEpoch(state)
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var
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cache = StateCache()
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info: phase0.EpochInfo
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info.init(state.hbsPhase0.data)
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info.process_attestations(state.hbsPhase0.data, cache)
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process_justification_and_finalization(
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state.hbsPhase0.data, info.total_balances)
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