| // Copyright 2015 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. |
| |
| // +build !go1.5 |
| |
| package transport |
| |
| import "net/http" |
| |
| // makeReqCancel returns a closure that cancels the given http.Request |
| // when called. |
| func makeReqCancel(req *http.Request) func(http.RoundTripper) { |
| // Go 1.4 and prior do not have a reliable way of cancelling a request. |
| // Transport.CancelRequest will only work if the request is already in-flight. |
| return func(r http.RoundTripper) { |
| if t, ok := r.(*http.Transport); ok { |
| t.CancelRequest(req) |
| } |
| } |
| } |
