源码学习¶

Testing¶

Testing a package:

$ go test -v ./eth

Running an individual test:

$ go test -v ./eth -run TestMethod

Running benchmarks, eg.:

$ go test -v -bench . -run BenchmarkJoin

devp2p¶

安装:

$ go get -u github.com/ethereum/go-ethereum/cmd/devp2p
$ go get -u github.com/ethereum/go-ethereum/cmd/ethkey

使用:

$ devp2p discv4 crawl -timeout 30m all-nodes.json

$ devp2p nodeset filter all-nodes.json -eth-network mainnet > mainnet.nodes.example.org/nodes.json

The following filter flags are available:

-eth-network ( mainnet | ropsten | rinkeby | goerli ) selects an Ethereum network.
-les-server selects LES server nodes.
-ip <mask> restricts nodes to the given IP range.
-min-age <duration> restricts the result to nodes which have been live for the given duration.

Creating DNS trees:

$ ethkey generate dnskey.json
$ devp2p dns sign mainnet.nodes.example.org dnskey.json

Publishing DNS trees:

$ devp2p dns to-cloudflare mainnet.nodes.example.org