cadvisor/manager/statsproc.go
2014-06-16 14:49:09 -07:00

62 lines
1.7 KiB
Go

// Copyright 2014 Google Inc. All Rights Reserved.
//
// 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 manager
import (
"log"
"github.com/google/cadvisor/info"
"github.com/google/cadvisor/storage"
)
type ContainerStats struct {
ContainerReference info.ContainerReference
Stats *info.ContainerStats
ResChan chan<- error
}
type ContainerStatsProcessor interface {
StartStatsProcessors(numProcs int) (chan<- *ContainerStats, error)
StopAllProcessors()
}
type containerStatsWriter struct {
config *storage.Config
}
func (self *containerStatsWriter) StartStatsProcessors(numProcs int) (chan<- *ContainerStats, error) {
ch := make(chan *ContainerStats)
statsWriter, err := storage.NewContainerStatsWriter(self.config)
if err != nil {
return nil, err
}
for i := 0; i < numProcs; i++ {
go self.process(statsWriter, ch)
}
return ch, nil
}
func (self *containerStatsWriter) process(statsWriter storage.ContainerStatsWriter, ch <-chan *ContainerStats) {
for stats := range ch {
err := statsWriter.Write(stats.ContainerReference, stats.Stats)
if err != nil {
log.Printf("unable to write stats: %v", err)
}
if stats.ResChan != nil {
stats.ResChan <- err
}
}
}