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fixed_internal.go
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/
fixed_internal.go
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// Copyright 2021 ecodeclub
//
// 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 retry
import (
"sync/atomic"
"time"
"github.com/ecodeclub/ekit/internal/errs"
)
// FixedIntervalRetryStrategy 等间隔重试
type FixedIntervalRetryStrategy struct {
maxRetries int32 // 最大重试次数,如果是 0 或负数,表示无限重试
interval time.Duration // 重试间隔时间
retries int32 // 当前重试次数
}
func NewFixedIntervalRetryStrategy(interval time.Duration, maxRetries int32) (*FixedIntervalRetryStrategy, error) {
if interval <= 0 {
return nil, errs.NewErrInvalidIntervalValue(interval)
}
return &FixedIntervalRetryStrategy{
maxRetries: maxRetries,
interval: interval,
}, nil
}
func (s *FixedIntervalRetryStrategy) Next() (time.Duration, bool) {
retries := atomic.AddInt32(&s.retries, 1)
if s.maxRetries <= 0 || retries <= s.maxRetries {
return s.interval, true
}
return 0, false
}