github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/net/context/ctxhttp/cancelreq_go14.go (about)

     1  // Copyright 2015 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // +build !go1.5
     6  
     7  package ctxhttp
     8  
     9  import "net/http"
    10  
    11  type requestCanceler interface {
    12  	CancelRequest(*http.Request)
    13  }
    14  
    15  func canceler(client *http.Client, req *http.Request) func() {
    16  	rc, ok := client.Transport.(requestCanceler)
    17  	if !ok {
    18  		return func() {}
    19  	}
    20  	return func() {
    21  		rc.CancelRequest(req)
    22  	}
    23  }