api/internal/utils/closer.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 utils

import "log"

var (
	_closers []Closer
)

type Closer func() error

func AppendToClosers(c Closer) {
	_closers = append(_closers, c)
}

func CloseAll() {
	closerLen := len(_closers)
	for i := range _closers {
		if err := _closers[closerLen-1-i](); err != nil {
			log.Println(err)
		}
	}
}