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https://gitee.com/milvus-io/milvus.git
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44 lines
1.2 KiB
Go
44 lines
1.2 KiB
Go
// Copyright (C) 2019-2020 Zilliz. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance
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// with the License. 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 distributed under the License
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// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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// or implied. See the License for the specific language governing permissions and limitations under the License.
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package msgstream
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import (
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"log"
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"time"
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)
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// Reference: https://blog.cyeam.com/golang/2018/08/27/retry
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func Retry(attempts int, sleep time.Duration, fn func() error) error {
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if err := fn(); err != nil {
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if s, ok := err.(InterruptError); ok {
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return s.error
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}
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if attempts--; attempts > 0 {
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log.Printf("retry func error: %s. attempts #%d after %s.", err.Error(), attempts, sleep)
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time.Sleep(sleep)
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return Retry(attempts, 2*sleep, fn)
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}
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return err
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}
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return nil
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}
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type InterruptError struct {
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error
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}
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func NoRetryError(err error) InterruptError {
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return InterruptError{err}
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}
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