demo/util/signals.go

/*
 * 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 util

import (
	"os"
	"os/signal"
	"syscall"
)

type Closer interface {
	Close()
}

func WaitCloseSignals(closer Closer) {
	signals := make(chan os.Signal, 1)
	signal.Notify(signals, os.Interrupt, os.Kill, syscall.SIGQUIT, syscall.SIGTERM, syscall.SIGINT)
	<-signals
	closer.Close()
}