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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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