ducky/devices

Paddy 2016-01-02 Parent:b6494e1a499e

19:51ad0db105c8 Go to Latest

ducky/devices/vendor/golang.org/x/net/context/ctxhttp/ctxhttp.go

Update trout to fix routing bug. Update to tip on trout to fix the routing bug that was causing us such issues. See the commit message of trout at 3df515f0cec5 for more details.

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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 // Package ctxhttp provides helper functions for performing context-aware HTTP requests.
6 package ctxhttp
7
8 import (
9 "io"
10 "net/http"
11 "net/url"
12 "strings"
13
14 "golang.org/x/net/context"
15 )
16
17 // Do sends an HTTP request with the provided http.Client and returns an HTTP response.
18 // If the client is nil, http.DefaultClient is used.
19 // If the context is canceled or times out, ctx.Err() will be returned.
20 func Do(ctx context.Context, client *http.Client, req *http.Request) (*http.Response, error) {
21 if client == nil {
22 client = http.DefaultClient
23 }
24
25 // Request cancelation changed in Go 1.5, see cancelreq.go and cancelreq_go14.go.
26 cancel := canceler(client, req)
27
28 type responseAndError struct {
29 resp *http.Response
30 err error
31 }
32 result := make(chan responseAndError, 1)
33
34 go func() {
35 resp, err := client.Do(req)
36 result <- responseAndError{resp, err}
37 }()
38
39 select {
40 case <-ctx.Done():
41 cancel()
42 return nil, ctx.Err()
43 case r := <-result:
44 return r.resp, r.err
45 }
46 }
47
48 // Get issues a GET request via the Do function.
49 func Get(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
50 req, err := http.NewRequest("GET", url, nil)
51 if err != nil {
52 return nil, err
53 }
54 return Do(ctx, client, req)
55 }
56
57 // Head issues a HEAD request via the Do function.
58 func Head(ctx context.Context, client *http.Client, url string) (*http.Response, error) {
59 req, err := http.NewRequest("HEAD", url, nil)
60 if err != nil {
61 return nil, err
62 }
63 return Do(ctx, client, req)
64 }
65
66 // Post issues a POST request via the Do function.
67 func Post(ctx context.Context, client *http.Client, url string, bodyType string, body io.Reader) (*http.Response, error) {
68 req, err := http.NewRequest("POST", url, body)
69 if err != nil {
70 return nil, err
71 }
72 req.Header.Set("Content-Type", bodyType)
73 return Do(ctx, client, req)
74 }
75
76 // PostForm issues a POST request via the Do function.
77 func PostForm(ctx context.Context, client *http.Client, url string, data url.Values) (*http.Response, error) {
78 return Post(ctx, client, url, "application/x-www-form-urlencoded", strings.NewReader(data.Encode()))
79 }