retry.go

// Copyright 2021 gotomicro
//
// 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 rlock

import "time"

type RetryStrategy interface {
	// Next 返回下一次重试的间隔，如果不需要继续重试，那么第二参数发挥 false
	Next() (time.Duration, bool)
}

type FixIntervalRetry struct {
	// 重试间隔
	Interval time.Duration
	// 最大次数
	Max int
	cnt int
}

func (f *FixIntervalRetry) Next() (time.Duration, bool) {
	f.cnt++
	return f.Interval, f.cnt <= f.Max
}