ducky/devices

Paddy 2015-11-15 Parent:b6494e1a499e

6:e0bf06577ba5 Go to Latest

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

Ignore coverage output. Add a .hgignore file to ignore the output file that tracks our test coverage.

Download raw file
View source Diff to previous Annotate
History
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 }