| // Licensed to 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. Apache Software Foundation (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 grpc |
| |
| import ( |
| "context" |
| "time" |
| |
| "google.golang.org/grpc/codes" |
| "google.golang.org/grpc/connectivity" |
| "google.golang.org/grpc/status" |
| |
| "github.com/apache/skywalking-satellite/plugins/client/api" |
| ) |
| |
| // sniffer |
| func (c *Client) snifferChannelStatus() { |
| ctx, cancel := context.WithCancel(c.ctx) |
| defer cancel() |
| timeTicker := time.NewTicker(time.Duration(c.CheckPeriod) * time.Second) |
| for { |
| select { |
| case <-timeTicker.C: |
| state := c.client.GetState() |
| if state == connectivity.Shutdown || state == connectivity.TransientFailure { |
| c.updateStatus(api.Disconnect) |
| } else if state == connectivity.Ready || state == connectivity.Idle { |
| c.updateStatus(api.Connected) |
| } |
| case <-ctx.Done(): |
| timeTicker.Stop() |
| return |
| } |
| } |
| } |
| |
| func (c *Client) reportError(err error) { |
| if err == nil { |
| return |
| } |
| fromError, ok := status.FromError(err) |
| if ok { |
| errCode := fromError.Code() |
| if errCode == codes.Unavailable || errCode == codes.PermissionDenied || |
| errCode == codes.Unauthenticated || errCode == codes.ResourceExhausted || errCode == codes.Unknown { |
| c.updateStatus(api.Disconnect) |
| } |
| } |
| } |
| |
| func (c *Client) updateStatus(clientStatus api.ClientStatus) { |
| if c.status != clientStatus { |
| c.status = clientStatus |
| for _, listener := range c.listeners { |
| listener <- c.status |
| } |
| } |
| } |