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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_ | |
6 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_ | |
7 | |
8 #include "base/memory/ref_counted.h" | |
9 #include "base/sequenced_task_runner_helpers.h" | |
10 #include "net/base/net_export.h" | |
11 | |
12 namespace base { | |
13 class SingleThreadTaskRunner; | |
14 } // namespace base | |
15 | |
16 namespace net { | |
17 class CookieStore; | |
18 class URLRequestContext; | |
19 | |
20 struct URLRequestContextGetterTraits; | |
21 | |
22 // Interface for retrieving an net::URLRequestContext. | |
23 class NET_EXPORT URLRequestContextGetter | |
24 : public base::RefCountedThreadSafe<URLRequestContextGetter, | |
25 URLRequestContextGetterTraits> { | |
26 public: | |
27 virtual URLRequestContext* GetURLRequestContext() = 0; | |
28 | |
29 // Returns a SingleThreadTaskRunner corresponding to the thread on | |
30 // which the network IO happens (the thread on which the returned | |
31 // net::URLRequestContext may be used). | |
32 virtual scoped_refptr<base::SingleThreadTaskRunner> | |
33 GetNetworkTaskRunner() const = 0; | |
34 | |
35 protected: | |
36 friend class base::RefCountedThreadSafe<URLRequestContextGetter, | |
37 URLRequestContextGetterTraits>; | |
38 friend class base::DeleteHelper<URLRequestContextGetter>; | |
39 friend struct URLRequestContextGetterTraits; | |
40 | |
41 URLRequestContextGetter(); | |
42 virtual ~URLRequestContextGetter(); | |
43 | |
44 private: | |
45 // OnDestruct is meant to ensure deletion on the thread on which the request | |
46 // IO happens. | |
47 void OnDestruct() const; | |
48 }; | |
49 | |
50 struct URLRequestContextGetterTraits { | |
51 static void Destruct(const URLRequestContextGetter* context_getter) { | |
52 context_getter->OnDestruct(); | |
53 } | |
54 }; | |
55 | |
56 // For use in shimming a URLRequestContext into a URLRequestContextGetter. | |
57 class NET_EXPORT TrivialURLRequestContextGetter | |
58 : public URLRequestContextGetter { | |
59 public: | |
60 TrivialURLRequestContextGetter( | |
61 net::URLRequestContext* context, | |
62 const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner); | |
63 | |
64 // net::URLRequestContextGetter implementation: | |
65 net::URLRequestContext* GetURLRequestContext() override; | |
66 | |
67 scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner() | |
68 const override; | |
69 | |
70 private: | |
71 ~TrivialURLRequestContextGetter() override; | |
72 | |
73 net::URLRequestContext* context_; | |
74 const scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_; | |
75 | |
76 DISALLOW_COPY_AND_ASSIGN(TrivialURLRequestContextGetter); | |
77 }; | |
78 | |
79 } // namespace net | |
80 | |
81 #endif // NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_ | |
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