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Diffstat (limited to 'vendor/google.golang.org/api/gensupport/retry.go')
-rw-r--r--vendor/google.golang.org/api/gensupport/retry.go85
1 files changed, 0 insertions, 85 deletions
diff --git a/vendor/google.golang.org/api/gensupport/retry.go b/vendor/google.golang.org/api/gensupport/retry.go
deleted file mode 100644
index c60b3c3..0000000
--- a/vendor/google.golang.org/api/gensupport/retry.go
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright 2017 Google Inc. All Rights Reserved.
-//
-// 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 gensupport
-
-import (
- "io"
- "net"
- "net/http"
- "time"
-
- "golang.org/x/net/context"
-)
-
-// Retry invokes the given function, retrying it multiple times if the connection failed or
-// the HTTP status response indicates the request should be attempted again. ctx may be nil.
-func Retry(ctx context.Context, f func() (*http.Response, error), backoff BackoffStrategy) (*http.Response, error) {
- for {
- resp, err := f()
-
- var status int
- if resp != nil {
- status = resp.StatusCode
- }
-
- // Return if we shouldn't retry.
- pause, retry := backoff.Pause()
- if !shouldRetry(status, err) || !retry {
- return resp, err
- }
-
- // Ensure the response body is closed, if any.
- if resp != nil && resp.Body != nil {
- resp.Body.Close()
- }
-
- // Pause, but still listen to ctx.Done if context is not nil.
- var done <-chan struct{}
- if ctx != nil {
- done = ctx.Done()
- }
- select {
- case <-done:
- return nil, ctx.Err()
- case <-time.After(pause):
- }
- }
-}
-
-// DefaultBackoffStrategy returns a default strategy to use for retrying failed upload requests.
-func DefaultBackoffStrategy() BackoffStrategy {
- return &ExponentialBackoff{
- Base: 250 * time.Millisecond,
- Max: 16 * time.Second,
- }
-}
-
-// shouldRetry returns true if the HTTP response / error indicates that the
-// request should be attempted again.
-func shouldRetry(status int, err error) bool {
- if 500 <= status && status <= 599 {
- return true
- }
- if status == statusTooManyRequests {
- return true
- }
- if err == io.ErrUnexpectedEOF {
- return true
- }
- if err, ok := err.(net.Error); ok {
- return err.Temporary()
- }
- return false
-}