mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-01 00:31:21 +00:00
79 lines
2.5 KiB
Go
79 lines
2.5 KiB
Go
/*
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Copyright 2021 Erigon contributors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package direct
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import (
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"context"
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"github.com/ledgerwatch/erigon-lib/gointerfaces/remote"
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"github.com/ledgerwatch/log/v3"
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"google.golang.org/grpc"
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)
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type StateDiffClient interface {
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StateChanges(ctx context.Context, in *remote.StateChangeRequest, opts ...grpc.CallOption) (remote.KV_StateChangesClient, error)
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}
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var _ StateDiffClient = (*StateDiffClientDirect)(nil) // compile-time interface check
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// SentryClientDirect implements SentryClient interface by connecting the instance of the client directly with the corresponding
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// instance of SentryServer
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type StateDiffClientDirect struct {
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server remote.KVServer
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}
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func NewStateDiffClientDirect(server remote.KVServer) *StateDiffClientDirect {
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return &StateDiffClientDirect{server: server}
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}
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func (c *StateDiffClientDirect) StateChanges(ctx context.Context, in *remote.StateChangeRequest, opts ...grpc.CallOption) (remote.KV_StateChangesClient, error) {
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messageCh := make(chan *remote.StateChangeBatch, 16384)
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streamServer := &StateDiffServerStream{messageCh: messageCh, ctx: ctx}
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go func() {
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if err := c.server.StateChanges(in, streamServer); err != nil {
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log.Warn("StateChanges returned", "err", err)
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}
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close(messageCh)
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}()
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return &StateDiffClientStream{messageCh: messageCh, ctx: ctx}, nil
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}
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type StateDiffClientStream struct {
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messageCh chan *remote.StateChangeBatch
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ctx context.Context
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grpc.ClientStream
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}
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func (c *StateDiffClientStream) Recv() (*remote.StateChangeBatch, error) {
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m := <-c.messageCh
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return m, nil
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}
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func (c *StateDiffClientStream) Context() context.Context { return c.ctx }
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// StateDiffServerStream implements proto_sentry.Sentry_ReceiveMessagesServer
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type StateDiffServerStream struct {
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messageCh chan *remote.StateChangeBatch
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ctx context.Context
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grpc.ServerStream
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}
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func (s *StateDiffServerStream) Send(m *remote.StateChangeBatch) error {
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s.messageCh <- m
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return nil
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}
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func (s *StateDiffServerStream) Context() context.Context { return s.ctx }
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