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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_MOJO_PROXY_H_ | 5 #ifndef COMPONENTS_LEVELDB_LEVELDB_MOJO_PROXY_H_ |
6 #define COMPONENTS_LEVELDB_LEVELDB_MOJO_PROXY_H_ | 6 #define COMPONENTS_LEVELDB_LEVELDB_MOJO_PROXY_H_ |
7 | 7 |
8 #include <map> | 8 #include <map> |
9 #include <memory> | 9 #include <memory> |
10 #include <string> | 10 #include <string> |
11 #include <utility> | 11 #include <utility> |
12 #include <vector> | 12 #include <vector> |
13 | 13 |
14 #include "base/callback_forward.h" | 14 #include "base/callback_forward.h" |
15 #include "base/files/file.h" | 15 #include "base/files/file.h" |
16 #include "base/memory/ref_counted.h" | 16 #include "base/memory/ref_counted.h" |
17 #include "base/synchronization/waitable_event.h" | 17 #include "base/synchronization/waitable_event.h" |
18 #include "base/threading/thread.h" | |
19 #include "components/filesystem/public/interfaces/directory.mojom.h" | 18 #include "components/filesystem/public/interfaces/directory.mojom.h" |
20 | 19 |
| 20 namespace base { |
| 21 class SingleThreadTaskRunner; |
| 22 } |
| 23 |
21 namespace leveldb { | 24 namespace leveldb { |
22 | 25 |
23 // A proxy for thread safe access to Mojo objects from multiple threads. | 26 // A proxy for thread safe access to Mojo objects from multiple threads. |
24 // | 27 // |
25 // MojoEnv is an object passed to the LevelDB implementation which can be | 28 // MojoEnv is an object passed to the LevelDB implementation which can be |
26 // called from multiple threads. Mojo pipes are bound to a single | 29 // called from multiple threads. Mojo pipes are bound to a single |
27 // thread. Because of this mismatch, we create a proxy object which will | 30 // thread. Because of this mismatch, we create a proxy object which will |
28 // redirect calls to the thread which owns the Mojo pipe, sends and receives | 31 // redirect calls to the thread which owns the Mojo pipe, sends and receives |
29 // messages. | 32 // messages. |
30 // | 33 // |
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154 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; | 157 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
155 | 158 |
156 int outstanding_opaque_dirs_; | 159 int outstanding_opaque_dirs_; |
157 | 160 |
158 DISALLOW_COPY_AND_ASSIGN(LevelDBMojoProxy); | 161 DISALLOW_COPY_AND_ASSIGN(LevelDBMojoProxy); |
159 }; | 162 }; |
160 | 163 |
161 } // namespace leveldb | 164 } // namespace leveldb |
162 | 165 |
163 #endif // COMPONENTS_LEVELDB_LEVELDB_MOJO_PROXY_H_ | 166 #endif // COMPONENTS_LEVELDB_LEVELDB_MOJO_PROXY_H_ |
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