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fe1bb62bad
This PR significantly changes the APIs for instantiating Ethereum nodes in a Go program. The new APIs are not backwards-compatible, but we feel that this is made up for by the much simpler way of registering services on node.Node. You can find more information and rationale in the design document: https://gist.github.com/renaynay/5bec2de19fde66f4d04c535fd24f0775. There is also a new feature in Node's Go API: it is now possible to register arbitrary handlers on the user-facing HTTP server. In geth, this facility is used to enable GraphQL. There is a single minor change relevant for geth users in this PR: The GraphQL API is no longer available separately from the JSON-RPC HTTP server. If you want GraphQL, you need to enable it using the ./geth --http --graphql flag combination. The --graphql.port and --graphql.addr flags are no longer available. # Conflicts: # cmd/faucet/faucet.go # cmd/geth/chaincmd.go # cmd/geth/config.go # cmd/geth/consolecmd.go # cmd/geth/main.go # cmd/utils/flags.go # cmd/wnode/main.go # core/rawdb/freezer.go # eth/api_backend.go # eth/backend.go # ethclient/ethclient_test.go # ethstats/ethstats.go # graphql/service.go # internal/ethapi/backend.go # les/api_backend.go # les/api_test.go # les/checkpointoracle/oracle.go # les/client.go # les/commons.go # les/server.go # miner/stresstest/stress_clique.go # miner/stresstest/stress_ethash.go # mobile/geth.go # node/api.go # node/node.go # node/node_example_test.go # node/node_test.go # node/rpcstack.go # node/rpcstack_test.go # node/service.go # node/service_test.go # node/utils_test.go # p2p/simulations/examples/ping-pong.go # p2p/testing/peerpool.go # p2p/testing/protocolsession.go # p2p/testing/protocoltester.go # whisper/mailserver/server_test.go # whisper/whisperv6/api_test.go # whisper/whisperv6/filter_test.go # whisper/whisperv6/whisper.go # whisper/whisperv6/whisper_test.go
32 lines
1.4 KiB
Go
32 lines
1.4 KiB
Go
// Copyright 2020 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package node
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// Lifecycle encompasses the behavior of services that can be started and stopped
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// on the node. Lifecycle management is delegated to the node, but it is the
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// responsibility of the service-specific package to configure and register the
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// service on the node using the `RegisterLifecycle` method.
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type Lifecycle interface {
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// Start is called after all services have been constructed and the networking
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// layer was also initialized to spawn any goroutines required by the service.
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Start() error
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// Stop terminates all goroutines belonging to the service, blocking until they
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// are all terminated.
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Stop() error
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}
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