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1 // Copyright 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 SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_FACTORY_H_ | |
6 #define SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_FACTORY_H_ | |
7 | |
8 #include <string> | |
9 | |
10 #include "base/callback.h" | |
11 #include "sync/base/sync_export.h" | |
12 | |
13 namespace net { | |
14 class URLFetcher; | |
15 } | |
16 | |
17 namespace syncer { | |
18 | |
19 typedef base::Callback<void(net::URLFetcher*)> BindToTrackerCallback; | |
20 | |
21 class HttpPostProviderInterface; | |
22 | |
23 // A factory to create HttpPostProviders to hide details about the | |
24 // implementations and dependencies. | |
25 // A factory instance itself should be owned by whomever uses it to create | |
26 // HttpPostProviders. | |
27 class SYNC_EXPORT HttpPostProviderFactory { | |
28 public: | |
29 virtual ~HttpPostProviderFactory() {} | |
30 | |
31 virtual void Init(const std::string& user_agent, | |
32 const BindToTrackerCallback& bind_to_tracker_callback) = 0; | |
33 | |
34 // Obtain a new HttpPostProviderInterface instance, owned by caller. | |
35 virtual HttpPostProviderInterface* Create() = 0; | |
36 | |
37 // When the interface is no longer needed (ready to be cleaned up), clients | |
38 // must call Destroy(). | |
39 // This allows actual HttpPostProvider subclass implementations to be | |
40 // reference counted, which is useful if a particular implementation uses | |
41 // multiple threads to serve network requests. | |
42 virtual void Destroy(HttpPostProviderInterface* http) = 0; | |
43 }; | |
44 | |
45 } // namespace syncer | |
46 | |
47 #endif // SYNC_INTERNAL_API_PUBLIC_HTTP_POST_PROVIDER_FACTORY_H_ | |
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