54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
/*
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* Copyright 2020 The Dragonfly Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package retry
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import (
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"context"
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"time"
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"d7y.io/dragonfly/v2/pkg/math"
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)
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func Run(ctx context.Context,
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initBackoff float64,
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maxBackoff float64,
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maxAttempts int,
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f func() (data any, cancel bool, err error)) (any, bool, error) {
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var (
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res any
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cancel bool
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cause error
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)
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for i := 0; i < maxAttempts; i++ {
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if i > 0 {
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time.Sleep(math.RandBackoffSeconds(initBackoff, maxBackoff, 2.0, i))
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}
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res, cancel, cause = f()
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if cause == nil || cancel {
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break
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}
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select {
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case <-ctx.Done():
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return nil, cancel, ctx.Err()
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default:
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}
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}
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return res, cancel, cause
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}
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