golang/pkg/ticker/ticker.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 ticker

import "time"

func Tick(f func(), d time.Duration, done chan struct{}) {
	go func() {
		ticker := time.NewTicker(d)
		defer ticker.Stop()
		for {
			select {
			case <-done:
				return
			case <-ticker.C:
				f()
			}
		}
	}()
}

func OnceAndTick(f func(), d time.Duration, done chan struct{}) {
	f()
	Tick(f, d, done)
}