| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 server |
| |
| import ( |
| "io" |
| "sync" |
| ) |
| |
| import ( |
| envoy_sd "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3" |
| "github.com/envoyproxy/go-control-plane/pkg/server/stream/v3" |
| ) |
| |
| // ErrorRecorderStream is a DeltaStream that records an error |
| // We need this because go-control-plane@v0.11.1/pkg/server/delta/v3/server.go:190 swallows an error on Recv() |
| type ErrorRecorderStream interface { |
| stream.DeltaStream |
| Err() error |
| } |
| |
| type errorRecorderStream struct { |
| stream.DeltaStream |
| err error |
| sync.Mutex |
| } |
| |
| var _ stream.DeltaStream = &errorRecorderStream{} |
| |
| func NewErrorRecorderStream(s stream.DeltaStream) ErrorRecorderStream { |
| return &errorRecorderStream{ |
| DeltaStream: s, |
| } |
| } |
| |
| func (e *errorRecorderStream) Recv() (*envoy_sd.DeltaDiscoveryRequest, error) { |
| res, err := e.DeltaStream.Recv() |
| if err != nil && err != io.EOF { // do not consider "end of stream" an error |
| e.Lock() |
| e.err = err |
| e.Unlock() |
| } |
| return res, err |
| } |
| |
| func (e *errorRecorderStream) Err() error { |
| e.Lock() |
| defer e.Unlock() |
| return e.err |
| } |