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1 // Copyright 2014 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_MODEL_TYPE_CONNECTOR_PROXY_H_ | |
6 #define SYNC_INTERNAL_API_MODEL_TYPE_CONNECTOR_PROXY_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/memory/weak_ptr.h" | |
11 #include "base/sequenced_task_runner.h" | |
12 #include "sync/base/sync_export.h" | |
13 #include "sync/internal_api/public/base/model_type.h" | |
14 #include "sync/internal_api/public/model_type_connector.h" | |
15 | |
16 namespace syncer_v2 { | |
17 | |
18 // Proxies all ModelTypeConnector calls to another thread. Typically used by | |
19 // the SyncBackend to call from the UI thread to the real ModelTypeConnector on | |
20 // the sync thread. | |
21 class SYNC_EXPORT ModelTypeConnectorProxy : public ModelTypeConnector { | |
22 public: | |
23 ModelTypeConnectorProxy( | |
24 const scoped_refptr<base::SequencedTaskRunner>& task_runner, | |
25 const base::WeakPtr<ModelTypeConnector>& model_type_connector); | |
26 ~ModelTypeConnectorProxy() override; | |
27 | |
28 // ModelTypeConnector implementation | |
29 void ConnectType( | |
30 syncer::ModelType type, | |
31 std::unique_ptr<ActivationContext> activation_context) override; | |
32 void DisconnectType(syncer::ModelType type) override; | |
33 | |
34 private: | |
35 // A SequencedTaskRunner representing the thread where the ModelTypeConnector | |
36 // lives. | |
37 scoped_refptr<base::SequencedTaskRunner> task_runner_; | |
38 | |
39 // The ModelTypeConnector this object is wrapping. | |
40 base::WeakPtr<ModelTypeConnector> model_type_connector_; | |
41 }; | |
42 | |
43 } // namespace syncer_v2 | |
44 | |
45 #endif // SYNC_INTERNAL_API_MODEL_TYPE_CONNECTOR_PROXY_H_ | |
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