mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
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0be3044b7e
* rename * rename "make grpc" * rename "abi bindings templates" * rename "abi bindings templates"
103 lines
3.4 KiB
Go
103 lines
3.4 KiB
Go
package remotedbserver
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import (
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"bytes"
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"context"
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"github.com/ledgerwatch/erigon/common"
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"github.com/ledgerwatch/erigon/core"
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"github.com/ledgerwatch/erigon/core/types"
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"github.com/ledgerwatch/erigon/gointerfaces"
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"github.com/ledgerwatch/erigon/gointerfaces/remote"
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types2 "github.com/ledgerwatch/erigon/gointerfaces/types"
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"github.com/ledgerwatch/erigon/log"
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"github.com/ledgerwatch/erigon/params"
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"github.com/ledgerwatch/erigon/rlp"
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"google.golang.org/protobuf/types/known/emptypb"
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)
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type EthBackendServer struct {
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remote.UnimplementedETHBACKENDServer // must be embedded to have forward compatible implementations.
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eth core.EthBackend
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events *Events
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gitCommit string
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}
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func NewEthBackendServer(eth core.EthBackend, events *Events, gitCommit string) *EthBackendServer {
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return &EthBackendServer{eth: eth, events: events, gitCommit: gitCommit}
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}
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// Version
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// 2.0.0 - move all mining-related methods to 'txpool/mining' server
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func (s *EthBackendServer) Version(context.Context, *emptypb.Empty) (*types2.VersionReply, error) {
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return &types2.VersionReply{Major: 2, Minor: 0, Patch: 0}, nil
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}
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func (s *EthBackendServer) Etherbase(_ context.Context, _ *remote.EtherbaseRequest) (*remote.EtherbaseReply, error) {
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out := &remote.EtherbaseReply{Address: gointerfaces.ConvertAddressToH160(common.Address{})}
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base, err := s.eth.Etherbase()
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if err != nil {
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return out, err
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}
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out.Address = gointerfaces.ConvertAddressToH160(base)
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return out, nil
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}
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func (s *EthBackendServer) NetVersion(_ context.Context, _ *remote.NetVersionRequest) (*remote.NetVersionReply, error) {
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id, err := s.eth.NetVersion()
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if err != nil {
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return &remote.NetVersionReply{}, err
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}
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return &remote.NetVersionReply{Id: id}, nil
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}
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func (s *EthBackendServer) Subscribe(r *remote.SubscribeRequest, subscribeServer remote.ETHBACKEND_SubscribeServer) error {
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log.Debug("establishing event subscription channel with the RPC daemon")
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s.events.AddHeaderSubscription(func(h *types.Header) error {
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select {
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case <-subscribeServer.Context().Done():
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return subscribeServer.Context().Err()
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default:
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}
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var buf bytes.Buffer
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if err := rlp.Encode(&buf, h); err != nil {
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log.Warn("error while marshaling a header", "err", err)
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return err
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}
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payload := buf.Bytes()
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err := subscribeServer.Send(&remote.SubscribeReply{
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Type: remote.Event_HEADER,
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Data: payload,
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})
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// we only close the wg on error because if we successfully sent an event,
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// that means that the channel wasn't closed and is ready to
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// receive more events.
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// if rpcdaemon disconnects, we will receive an error here
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// next time we try to send an event
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if err != nil {
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log.Info("event subscription channel was closed", "reason", err)
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}
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return err
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})
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log.Info("event subscription channel established with the RPC daemon")
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<-subscribeServer.Context().Done()
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log.Info("event subscription channel closed with the RPC daemon")
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return nil
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}
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func (s *EthBackendServer) ProtocolVersion(_ context.Context, _ *remote.ProtocolVersionRequest) (*remote.ProtocolVersionReply, error) {
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// Hardcoding to avoid import cycle
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return &remote.ProtocolVersionReply{Id: 66}, nil
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}
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func (s *EthBackendServer) ClientVersion(_ context.Context, _ *remote.ClientVersionRequest) (*remote.ClientVersionReply, error) {
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return &remote.ClientVersionReply{NodeName: common.MakeName("TurboGeth", params.VersionWithCommit(s.gitCommit, ""))}, nil
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}
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