mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-23 04:03:49 +00:00
231e468e19
git-subtree-dir: erigon-lib git-subtree-mainline:3c8cbda809git-subtree-split:93d9c9d9fe
100 lines
2.9 KiB
Go
100 lines
2.9 KiB
Go
/*
|
|
Copyright 2021 Erigon contributors
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package direct
|
|
|
|
import (
|
|
"context"
|
|
"io"
|
|
|
|
"github.com/ledgerwatch/erigon-lib/gointerfaces/remote"
|
|
"google.golang.org/grpc"
|
|
)
|
|
|
|
type StateDiffClient interface {
|
|
StateChanges(ctx context.Context, in *remote.StateChangeRequest, opts ...grpc.CallOption) (remote.KV_StateChangesClient, error)
|
|
Snapshots(ctx context.Context, in *remote.SnapshotsRequest, opts ...grpc.CallOption) (*remote.SnapshotsReply, error)
|
|
}
|
|
|
|
var _ StateDiffClient = (*StateDiffClientDirect)(nil) // compile-time interface check
|
|
|
|
// SentryClientDirect implements SentryClient interface by connecting the instance of the client directly with the corresponding
|
|
// instance of SentryServer
|
|
type StateDiffClientDirect struct {
|
|
server remote.KVServer
|
|
}
|
|
|
|
func NewStateDiffClientDirect(server remote.KVServer) *StateDiffClientDirect {
|
|
return &StateDiffClientDirect{server: server}
|
|
}
|
|
|
|
func (c *StateDiffClientDirect) Snapshots(ctx context.Context, in *remote.SnapshotsRequest, opts ...grpc.CallOption) (*remote.SnapshotsReply, error) {
|
|
return c.server.Snapshots(ctx, in)
|
|
}
|
|
|
|
// -- start StateChanges
|
|
|
|
func (c *StateDiffClientDirect) StateChanges(ctx context.Context, in *remote.StateChangeRequest, opts ...grpc.CallOption) (remote.KV_StateChangesClient, error) {
|
|
ch := make(chan *stateDiffReply, 16384)
|
|
streamServer := &StateDiffStreamS{ch: ch, ctx: ctx}
|
|
go func() {
|
|
defer close(ch)
|
|
streamServer.Err(c.server.StateChanges(in, streamServer))
|
|
}()
|
|
return &StateDiffStreamC{ch: ch, ctx: ctx}, nil
|
|
}
|
|
|
|
type stateDiffReply struct {
|
|
r *remote.StateChangeBatch
|
|
err error
|
|
}
|
|
|
|
type StateDiffStreamC struct {
|
|
ch chan *stateDiffReply
|
|
ctx context.Context
|
|
grpc.ClientStream
|
|
}
|
|
|
|
func (c *StateDiffStreamC) Recv() (*remote.StateChangeBatch, error) {
|
|
m, ok := <-c.ch
|
|
if !ok || m == nil {
|
|
return nil, io.EOF
|
|
}
|
|
return m.r, m.err
|
|
}
|
|
func (c *StateDiffStreamC) Context() context.Context { return c.ctx }
|
|
|
|
// StateDiffStreamS implements proto_sentry.Sentry_ReceiveMessagesServer
|
|
type StateDiffStreamS struct {
|
|
ch chan *stateDiffReply
|
|
ctx context.Context
|
|
grpc.ServerStream
|
|
}
|
|
|
|
func (s *StateDiffStreamS) Send(m *remote.StateChangeBatch) error {
|
|
s.ch <- &stateDiffReply{r: m}
|
|
return nil
|
|
}
|
|
func (s *StateDiffStreamS) Context() context.Context { return s.ctx }
|
|
func (s *StateDiffStreamS) Err(err error) {
|
|
if err == nil {
|
|
return
|
|
}
|
|
s.ch <- &stateDiffReply{err: err}
|
|
}
|
|
|
|
// -- end StateChanges
|