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authorLibravatar Rutger Broekhoff2024-01-02 18:56:31 +0100
committerLibravatar Rutger Broekhoff2024-01-02 18:56:31 +0100
commit8db41da676ac8368ef7c2549d56239a5ff5eedde (patch)
tree09c427fd66de2ec1ebffc8342f5fdbb84b0701b5 /vendor/github.com/minio/minio-go/v7/retry-continous.go
parentd4f75fb6db22e57577867445a022227e70958931 (diff)
downloadgitolfs3-8db41da676ac8368ef7c2549d56239a5ff5eedde.tar.gz
gitolfs3-8db41da676ac8368ef7c2549d56239a5ff5eedde.zip
Delete vendor directory
Diffstat (limited to 'vendor/github.com/minio/minio-go/v7/retry-continous.go')
-rw-r--r--vendor/github.com/minio/minio-go/v7/retry-continous.go69
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diff --git a/vendor/github.com/minio/minio-go/v7/retry-continous.go b/vendor/github.com/minio/minio-go/v7/retry-continous.go
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--- a/vendor/github.com/minio/minio-go/v7/retry-continous.go
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1/*
2 * MinIO Go Library for Amazon S3 Compatible Cloud Storage
3 * Copyright 2015-2017 MinIO, Inc.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17
18package minio
19
20import "time"
21
22// newRetryTimerContinous creates a timer with exponentially increasing delays forever.
23func (c *Client) newRetryTimerContinous(unit, cap time.Duration, jitter float64, doneCh chan struct{}) <-chan int {
24 attemptCh := make(chan int)
25
26 // normalize jitter to the range [0, 1.0]
27 if jitter < NoJitter {
28 jitter = NoJitter
29 }
30 if jitter > MaxJitter {
31 jitter = MaxJitter
32 }
33
34 // computes the exponential backoff duration according to
35 // https://www.awsarchitectureblog.com/2015/03/backoff.html
36 exponentialBackoffWait := func(attempt int) time.Duration {
37 // 1<<uint(attempt) below could overflow, so limit the value of attempt
38 maxAttempt := 30
39 if attempt > maxAttempt {
40 attempt = maxAttempt
41 }
42 // sleep = random_between(0, min(cap, base * 2 ** attempt))
43 sleep := unit * time.Duration(1<<uint(attempt))
44 if sleep > cap {
45 sleep = cap
46 }
47 if jitter != NoJitter {
48 sleep -= time.Duration(c.random.Float64() * float64(sleep) * jitter)
49 }
50 return sleep
51 }
52
53 go func() {
54 defer close(attemptCh)
55 var nextBackoff int
56 for {
57 select {
58 // Attempts starts.
59 case attemptCh <- nextBackoff:
60 nextBackoff++
61 case <-doneCh:
62 // Stop the routine.
63 return
64 }
65 time.Sleep(exponentialBackoffWait(nextBackoff))
66 }
67 }()
68 return attemptCh
69}