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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 MOJO_SYSTEM_WAITER_H_ | 5 #ifndef MOJO_SYSTEM_WAITER_H_ |
6 #define MOJO_SYSTEM_WAITER_H_ | 6 #define MOJO_SYSTEM_WAITER_H_ |
7 | 7 |
8 #include "base/basictypes.h" | 8 #include "base/basictypes.h" |
9 #include "base/synchronization/condition_variable.h" | 9 #include "base/synchronization/condition_variable.h" |
10 #include "base/synchronization/lock.h" | 10 #include "base/synchronization/lock.h" |
11 #include "mojo/public/system/core.h" | 11 #include "mojo/public/system/core.h" |
| 12 #include "mojo/public/system/system_export.h" |
12 | 13 |
13 namespace mojo { | 14 namespace mojo { |
14 namespace system { | 15 namespace system { |
15 | 16 |
16 // IMPORTANT (all-caps gets your attention, right?): |Waiter| methods are called | 17 // IMPORTANT (all-caps gets your attention, right?): |Waiter| methods are called |
17 // under other locks, in particular, |Dispatcher::lock_|s, so |Waiter| methods | 18 // under other locks, in particular, |Dispatcher::lock_|s, so |Waiter| methods |
18 // must never call out to other objects (in particular, |Dispatcher|s). This | 19 // must never call out to other objects (in particular, |Dispatcher|s). This |
19 // class is thread-safe. | 20 // class is thread-safe. |
20 class Waiter { | 21 class MOJO_SYSTEM_EXPORT Waiter { |
21 public: | 22 public: |
22 Waiter(); | 23 Waiter(); |
23 ~Waiter(); | 24 ~Waiter(); |
24 | 25 |
25 // A |Waiter| can be used multiple times; |Init()| should be called before | 26 // A |Waiter| can be used multiple times; |Init()| should be called before |
26 // each time it's used. | 27 // each time it's used. |
27 void Init(); | 28 void Init(); |
28 | 29 |
29 // Waits until a suitable |Awake()| is called. | 30 // Waits until a suitable |Awake()| is called. |
30 // Returns: | 31 // Returns: |
(...skipping 17 matching lines...) Expand all Loading... |
48 bool awoken_; | 49 bool awoken_; |
49 MojoResult wait_result_; | 50 MojoResult wait_result_; |
50 | 51 |
51 DISALLOW_COPY_AND_ASSIGN(Waiter); | 52 DISALLOW_COPY_AND_ASSIGN(Waiter); |
52 }; | 53 }; |
53 | 54 |
54 } // namespace system | 55 } // namespace system |
55 } // namespace mojo | 56 } // namespace mojo |
56 | 57 |
57 #endif // MOJO_SYSTEM_WAITER_H_ | 58 #endif // MOJO_SYSTEM_WAITER_H_ |
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