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1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ | 5 #ifndef COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ |
6 #define COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ | 6 #define COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ |
7 | 7 |
8 #include "base/memory/ref_counted.h" | 8 #include "base/memory/ref_counted.h" |
9 #include "components/leveldb/leveldb_mojo_proxy.h" | 9 #include "components/leveldb/leveldb_mojo_proxy.h" |
10 #include "components/leveldb/public/interfaces/leveldb.mojom.h" | 10 #include "components/leveldb/public/interfaces/leveldb.mojom.h" |
11 #include "mojo/public/cpp/bindings/binding_set.h" | 11 #include "mojo/public/cpp/bindings/binding_set.h" |
12 | 12 |
13 namespace leveldb { | 13 namespace leveldb { |
14 | 14 |
| 15 class MojoEnv; |
| 16 |
15 // Creates LevelDBDatabases based scoped to a |directory|/|dbname|. | 17 // Creates LevelDBDatabases based scoped to a |directory|/|dbname|. |
16 class LevelDBServiceImpl : public mojom::LevelDBService { | 18 class LevelDBServiceImpl : public mojom::LevelDBService { |
17 public: | 19 public: |
18 // The |file_task_runner| is used to run tasks to interact with the | 20 // The |file_task_runner| is used to run tasks to interact with the |
19 // file_service. Specifically this task runner must NOT be the same as the | 21 // file_service. Specifically this task runner must NOT be the same as the |
20 // task runner this implementation runs on, or deadlock might occur. | 22 // task runner this implementation runs on, or deadlock might occur. |
21 LevelDBServiceImpl( | 23 explicit LevelDBServiceImpl(MojoEnv* env); |
22 scoped_refptr<base::SingleThreadTaskRunner> file_task_runner); | |
23 ~LevelDBServiceImpl() override; | 24 ~LevelDBServiceImpl() override; |
24 | 25 |
25 // Overridden from LevelDBService: | 26 // Overridden from LevelDBService: |
26 void SetEnvironmentName(const std::string& name) override; | |
27 void Open(filesystem::mojom::DirectoryPtr directory, | 27 void Open(filesystem::mojom::DirectoryPtr directory, |
28 const std::string& dbname, | 28 const std::string& dbname, |
29 leveldb::mojom::LevelDBDatabaseAssociatedRequest database, | 29 leveldb::mojom::LevelDBDatabaseAssociatedRequest database, |
30 const OpenCallback& callback) override; | 30 const OpenCallback& callback) override; |
31 void OpenWithOptions( | 31 void OpenWithOptions( |
32 leveldb::mojom::OpenOptionsPtr open_options, | 32 leveldb::mojom::OpenOptionsPtr open_options, |
33 filesystem::mojom::DirectoryPtr directory, | 33 filesystem::mojom::DirectoryPtr directory, |
34 const std::string& dbname, | 34 const std::string& dbname, |
35 leveldb::mojom::LevelDBDatabaseAssociatedRequest database, | 35 leveldb::mojom::LevelDBDatabaseAssociatedRequest database, |
36 const OpenCallback& callback) override; | 36 const OpenCallback& callback) override; |
37 void OpenInMemory(leveldb::mojom::LevelDBDatabaseAssociatedRequest database, | 37 void OpenInMemory(leveldb::mojom::LevelDBDatabaseAssociatedRequest database, |
38 const OpenInMemoryCallback& callback) override; | 38 const OpenInMemoryCallback& callback) override; |
39 void Destroy(filesystem::mojom::DirectoryPtr directory, | 39 void Destroy(filesystem::mojom::DirectoryPtr directory, |
40 const std::string& dbname, | 40 const std::string& dbname, |
41 const DestroyCallback& callback) override; | 41 const DestroyCallback& callback) override; |
42 | 42 |
43 private: | 43 private: |
44 // Thread to own the mojo message pipe. Because leveldb spawns multiple | 44 MojoEnv* env_; |
45 // threads that want to call file stuff, we create a dedicated thread to send | |
46 // and receive mojo message calls. | |
47 scoped_refptr<LevelDBMojoProxy> thread_; | |
48 | |
49 std::string environment_name_; | |
50 | 45 |
51 DISALLOW_COPY_AND_ASSIGN(LevelDBServiceImpl); | 46 DISALLOW_COPY_AND_ASSIGN(LevelDBServiceImpl); |
52 }; | 47 }; |
53 | 48 |
54 } // namespace leveldb | 49 } // namespace leveldb |
55 | 50 |
56 #endif // COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ | 51 #endif // COMPONENTS_LEVELDB_LEVELDB_SERVICE_IMPL_H_ |
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