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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_EDK_SYSTEM_AWAKABLE_H_ | 5 #ifndef MOJO_EDK_SYSTEM_AWAKABLE_H_ |
6 #define MOJO_EDK_SYSTEM_AWAKABLE_H_ | 6 #define MOJO_EDK_SYSTEM_AWAKABLE_H_ |
7 | 7 |
8 #include <stdint.h> | 8 #include <stdint.h> |
9 | 9 |
10 #include "mojo/edk/system/system_impl_export.h" | 10 #include "mojo/edk/system/system_impl_export.h" |
11 #include "mojo/public/c/system/types.h" | 11 #include "third_party/mojo/src/mojo/public/c/system/types.h" |
12 | 12 |
13 namespace mojo { | 13 namespace mojo { |
14 namespace edk { | 14 namespace edk { |
15 | 15 |
16 // An interface that may be waited on |AwakableList|. | 16 // An interface that may be waited on |AwakableList|. |
17 class MOJO_SYSTEM_IMPL_EXPORT Awakable { | 17 class MOJO_SYSTEM_IMPL_EXPORT Awakable { |
18 public: | 18 public: |
19 // |Awake()| must satisfy the following contract: | 19 // |Awake()| must satisfy the following contract: |
20 // * As this is called from any thread, this must be thread-safe. | 20 // * As this is called from any thread, this must be thread-safe. |
21 // * As this is called inside a lock, this must not call anything that takes | 21 // * As this is called inside a lock, this must not call anything that takes |
22 // "non-terminal" locks, i.e., those which are always safe to take. | 22 // "non-terminal" locks, i.e., those which are always safe to take. |
23 // This should return false if this must not be called again for the same | 23 // This should return false if this must not be called again for the same |
24 // reason (e.g., for the same call to |AwakableList::Add()|). | 24 // reason (e.g., for the same call to |AwakableList::Add()|). |
25 virtual bool Awake(MojoResult result, uintptr_t context) = 0; | 25 virtual bool Awake(MojoResult result, uintptr_t context) = 0; |
26 | 26 |
27 protected: | 27 protected: |
28 Awakable() {} | 28 Awakable() {} |
29 }; | 29 }; |
30 | 30 |
31 } // namespace edk | 31 } // namespace edk |
32 } // namespace mojo | 32 } // namespace mojo |
33 | 33 |
34 #endif // MOJO_EDK_SYSTEM_AWAKABLE_H_ | 34 #endif // MOJO_EDK_SYSTEM_AWAKABLE_H_ |
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