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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
eth/discovery.go
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@ -63,11 +63,12 @@ func (eth *Ethereum) currentEthEntry() *ethEntry {
eth.blockchain.CurrentHeader().Number.Uint64())}
}
// setupDiscovery creates the node discovery source for the eth protocol.
func (eth *Ethereum) setupDiscovery() (enode.Iterator, error) {
if len(eth.config.DiscoveryURLs) == 0 {
// setupDiscovery creates the node discovery source for the `eth` and `snap`
// protocols.
func setupDiscovery(urls []string) (enode.Iterator, error) {
if len(urls) == 0 {
return nil, nil
}
client := dnsdisc.NewClient(dnsdisc.Config{})
return client.NewIterator(eth.config.DiscoveryURLs...)
return client.NewIterator(urls...)
}