43 lines
1.3 KiB
Go
43 lines
1.3 KiB
Go
// Copyright 2014 Google Inc. All Rights Reserved.
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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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package storage
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import (
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"cloud.google.com/go/internal"
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gax "github.com/googleapis/gax-go"
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"golang.org/x/net/context"
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"google.golang.org/api/googleapi"
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)
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// runWithRetry calls the function until it returns nil or a non-retryable error, or
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// the context is done.
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func runWithRetry(ctx context.Context, call func() error) error {
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return internal.Retry(ctx, gax.Backoff{}, func() (stop bool, err error) {
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err = call()
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if err == nil {
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return true, nil
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}
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e, ok := err.(*googleapi.Error)
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if !ok {
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return true, err
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}
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// Retry on 429 and 5xx, according to
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// https://cloud.google.com/storage/docs/exponential-backoff.
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if e.Code == 429 || (e.Code >= 500 && e.Code < 600) {
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return false, nil
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}
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return true, err
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})
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}
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