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/*
* Copyright (c) 2019 by Farsight Security, Inc.
*
* 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 main
import (
dnstap "github.com/dnstap/golang-dnstap"
)
type mirrorOutput struct {
outputs []dnstap.Output
data chan []byte
done chan struct{}
}
func newMirrorOutput() *mirrorOutput {
return &mirrorOutput{
data: make(chan []byte, outputChannelSize),
done: make(chan struct{}),
}
}
func (mo *mirrorOutput) Add(o dnstap.Output) {
mo.outputs = append(mo.outputs, o)
}
func (mo *mirrorOutput) RunOutputLoop() {
for b := range mo.data {
for _, o := range mo.outputs {
o.GetOutputChannel() <- b
}
}
for _, o := range mo.outputs {
o.Close()
}
close(mo.done)
}
func (mo *mirrorOutput) Close() {
close(mo.data)
<-mo.done
}
func (mo *mirrorOutput) GetOutputChannel() chan []byte {
return mo.data
}
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