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https://github.com/status-im/nimbus-eth1.git
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ddbdf34c3d
* Recreating some of the speculative-execution code. Not really using it yet. Also there's some new inefficiency in memory.nim, but it's fixable - just haven't gotten around to it yet. The big thing introduced here is the idea of "cells" for stack, memory, and storage values. A cell is basically just a Future (though there's also the option of making it an Identity - just a simple distinct wrapper around a value - if you want to turn off the asynchrony). * Bumped nim-eth. * Cleaned up a few comments. * Bumped nim-secp256k1. * Oops. * Fixing a few compiler errors that show up with EVMC enabled.
51 lines
3.3 KiB
Nim
51 lines
3.3 KiB
Nim
import
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options,
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chronos,
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stint,
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eth/common,
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eth/trie/db,
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../../sync/protocol,
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../../db/db_chain
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type
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AsyncDataSource* = ref object of RootObj
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ifNecessaryGetSlots*: proc(db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, slots: seq[UInt256], newStateRootForSanityChecking: Hash256): Future[void] {.gcsafe.}
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ifNecessaryGetCode*: proc(db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, newStateRootForSanityChecking: Hash256): Future[void] {.gcsafe.}
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ifNecessaryGetAccount*: proc(db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, newStateRootForSanityChecking: Hash256): Future[void] {.gcsafe.}
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ifNecessaryGetBlockHeaderByNumber*: proc(chainDB: ChainDBRef, blockNumber: BlockNumber): Future[void] {.gcsafe.}
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fetchNodes*: proc(stateRoot: Hash256, paths: seq[SnapTriePaths], nodeHashes: seq[Hash256]): Future[seq[seq[byte]]] {.gcsafe.}
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fetchBlockHeaderWithHash*: proc(h: Hash256): Future[BlockHeader] {.gcsafe.}
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fetchBlockHeaderWithNumber*: proc(n: BlockNumber): Future[BlockHeader] {.gcsafe.}
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fetchBlockHeaderAndBodyWithHash*: proc(h: Hash256): Future[(BlockHeader, BlockBody)] {.gcsafe.}
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fetchBlockHeaderAndBodyWithNumber*: proc(n: BlockNumber): Future[(BlockHeader, BlockBody)] {.gcsafe.}
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# FIXME-Adam: maybe rename this?
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AsyncOperationFactory* = ref object of RootObj
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maybeDataSource*: Option[AsyncDataSource]
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# FIXME-Adam: Can I make a singleton?
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proc asyncFactoryWithNoDataSource*(): AsyncOperationFactory =
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AsyncOperationFactory(maybeDataSource: none[AsyncDataSource]())
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# FIXME-Adam: Ugly but straightforward; can this be cleaned up using some combination of:
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# - an ifSome/map operation on Options
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# - some kind of "what are we fetching" tuple, so that this is just one thing
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proc ifNecessaryGetSlots*(asyncFactory: AsyncOperationFactory, db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, slots: seq[UInt256], newStateRootForSanityChecking: Hash256): Future[void] {.async.} =
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if asyncFactory.maybeDataSource.isSome:
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await asyncFactory.maybeDataSource.get.ifNecessaryGetSlots(db, blockNumber, stateRoot, address, slots, newStateRootForSanityChecking)
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proc ifNecessaryGetCode*(asyncFactory: AsyncOperationFactory, db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, newStateRootForSanityChecking: Hash256): Future[void] {.async.} =
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if asyncFactory.maybeDataSource.isSome:
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await asyncFactory.maybeDataSource.get.ifNecessaryGetCode(db, blockNumber, stateRoot, address, newStateRootForSanityChecking)
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proc ifNecessaryGetAccount*(asyncFactory: AsyncOperationFactory, db: TrieDatabaseRef, blockNumber: BlockNumber, stateRoot: Hash256, address: EthAddress, newStateRootForSanityChecking: Hash256): Future[void] {.async.} =
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if asyncFactory.maybeDataSource.isSome:
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await asyncFactory.maybeDataSource.get.ifNecessaryGetAccount(db, blockNumber, stateRoot, address, newStateRootForSanityChecking)
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proc ifNecessaryGetBlockHeaderByNumber*(asyncFactory: AsyncOperationFactory, chainDB: ChainDBRef, blockNumber: BlockNumber): Future[void] {.async.} =
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if asyncFactory.maybeDataSource.isSome:
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await asyncFactory.maybeDataSource.get.ifNecessaryGetBlockHeaderByNumber(chainDB, blockNumber)
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