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core, eth: split eth package, implement snap protocol (#21482)

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This commit splits the eth package, separating the handling of eth and snap protocols. It also includes the capability to run snap sync (https://github.com/ethereum/devp2p/blob/master/caps/snap.md) , but does not enable it by default. 

Co-authored-by: Marius van der Wijden <m.vanderwijden@live.de>
Co-authored-by: Martin Holst Swende <martin@swende.se>
This commit is contained in:
Péter Szilágyi
2020-12-14 11:27:15 +02:00
committed by GitHub
parent 00d10e610f
commit 017831dd5b
74 changed files with 8246 additions and 3411 deletions
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9
core/forkid/forkid.go
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@ -84,6 +84,15 @@ func NewID(config *params.ChainConfig, genesis common.Hash, head uint64) ID {
return ID{Hash: checksumToBytes(hash), Next: next}
}
// NewIDWithChain calculates the Ethereum fork ID from an existing chain instance.
func NewIDWithChain(chain Blockchain) ID {
return NewID(
chain.Config(),
chain.Genesis().Hash(),
chain.CurrentHeader().Number.Uint64(),
)
}
// NewFilter creates a filter that returns if a fork ID should be rejected or not
// based on the local chain's status.
func NewFilter(chain Blockchain) Filter {