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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 CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ | 5 #ifndef CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ |
6 #define CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ | 6 #define CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ |
7 | 7 |
8 #include "base/compiler_specific.h" | 8 #include "base/compiler_specific.h" |
9 #include "base/memory/memory_coordinator_client.h" | 9 #include "base/memory/memory_coordinator_client.h" |
10 #include "base/memory/memory_coordinator_proxy.h" | 10 #include "base/memory/memory_coordinator_proxy.h" |
11 #include "content/common/child_memory_coordinator.mojom.h" | 11 #include "content/common/child_memory_coordinator.mojom.h" |
12 #include "content/common/content_export.h" | 12 #include "content/common/content_export.h" |
13 #include "content/common/memory_coordinator.mojom.h" | 13 #include "content/common/memory_coordinator.mojom.h" |
14 #include "mojo/public/cpp/bindings/binding.h" | 14 #include "mojo/public/cpp/bindings/binding.h" |
| 15 #include "mojo/public/cpp/system/buffer.h" |
15 | 16 |
16 namespace content { | 17 namespace content { |
17 | 18 |
18 class CONTENT_EXPORT ChildMemoryCoordinatorDelegate { | 19 class CONTENT_EXPORT ChildMemoryCoordinatorDelegate { |
19 public: | 20 public: |
20 virtual ~ChildMemoryCoordinatorDelegate() {} | 21 virtual ~ChildMemoryCoordinatorDelegate() {} |
21 | 22 |
22 // Called when the system requests immediate actions to free memory. | 23 // Called when the system requests immediate actions to free memory. |
23 virtual void OnTrimMemoryImmediately() = 0; | 24 virtual void OnTrimMemoryImmediately() = 0; |
24 }; | 25 }; |
25 | 26 |
26 // ChildMemoryCoordinatorImpl is the implementation of ChildMemoryCoordinator. | 27 // ChildMemoryCoordinatorImpl is the implementation of ChildMemoryCoordinator. |
27 // It lives in child processes and is responsible for dispatching memory events | 28 // It lives in child processes and is responsible for dispatching memory events |
28 // to its clients. | 29 // to its clients. |
29 class CONTENT_EXPORT ChildMemoryCoordinatorImpl | 30 class CONTENT_EXPORT ChildMemoryCoordinatorImpl |
30 : base::MemoryCoordinator, | 31 : base::MemoryCoordinator, |
31 NON_EXPORTED_BASE(public mojom::ChildMemoryCoordinator) { | 32 NON_EXPORTED_BASE(public mojom::ChildMemoryCoordinator) { |
32 public: | 33 public: |
33 // Returns the instance of ChildMemoryCoordinatorImpl. Could be nullptr. | 34 // Returns the instance of ChildMemoryCoordinatorImpl. Could be nullptr. |
34 static ChildMemoryCoordinatorImpl* GetInstance(); | 35 static ChildMemoryCoordinatorImpl* GetInstance(); |
35 | 36 |
36 ChildMemoryCoordinatorImpl(mojom::MemoryCoordinatorHandlePtr parent, | 37 ChildMemoryCoordinatorImpl(mojom::MemoryCoordinatorHandlePtr parent, |
37 ChildMemoryCoordinatorDelegate* delegate); | 38 ChildMemoryCoordinatorDelegate* delegate); |
38 ~ChildMemoryCoordinatorImpl() override; | 39 ~ChildMemoryCoordinatorImpl() override; |
39 | 40 |
40 // base::MemoryCoordinator implementations: | 41 // base::MemoryCoordinator implementations: |
41 base::MemoryState GetCurrentMemoryState() const override; | 42 base::MemoryState GetCurrentMemoryState() const override; |
| 43 int64_t GetGlobalBudget() override; |
| 44 void SetGlobalBudgetUpdateInterval(uint32_t interval_ms) override; |
42 | 45 |
43 // mojom::ChildMemoryCoordinator implementations: | 46 // mojom::ChildMemoryCoordinator implementations: |
44 void OnStateChange(mojom::MemoryState state) override; | 47 void OnStateChange(mojom::MemoryState state) override; |
45 void PurgeMemory() override; | 48 void PurgeMemory() override; |
46 | 49 |
47 protected: | 50 protected: |
48 ChildMemoryCoordinatorDelegate* delegate() { return delegate_; } | 51 ChildMemoryCoordinatorDelegate* delegate() { return delegate_; } |
49 | 52 |
50 private: | 53 private: |
51 friend class ChildMemoryCoordinatorImplTest; | 54 friend class ChildMemoryCoordinatorImplTest; |
52 | 55 |
| 56 void OnGetGlobalBudgetHandle(mojo::ScopedSharedBufferHandle handle); |
| 57 |
53 mojo::Binding<mojom::ChildMemoryCoordinator> binding_; | 58 mojo::Binding<mojom::ChildMemoryCoordinator> binding_; |
54 base::MemoryState current_state_ = base::MemoryState::NORMAL; | 59 base::MemoryState current_state_ = base::MemoryState::NORMAL; |
55 mojom::MemoryCoordinatorHandlePtr parent_; | 60 mojom::MemoryCoordinatorHandlePtr parent_; |
56 ChildMemoryCoordinatorDelegate* delegate_; | 61 ChildMemoryCoordinatorDelegate* delegate_; |
| 62 mojo::ScopedSharedBufferHandle global_budget_handle_; |
| 63 mojo::ScopedSharedBufferMapping global_budget_mapping_; |
57 | 64 |
58 DISALLOW_COPY_AND_ASSIGN(ChildMemoryCoordinatorImpl); | 65 DISALLOW_COPY_AND_ASSIGN(ChildMemoryCoordinatorImpl); |
59 }; | 66 }; |
60 | 67 |
61 // Factory function for creating a ChildMemoryCoordinator for the current | 68 // Factory function for creating a ChildMemoryCoordinator for the current |
62 // platform. Doesn't take the ownership of |delegate|. | 69 // platform. Doesn't take the ownership of |delegate|. |
63 CONTENT_EXPORT std::unique_ptr<ChildMemoryCoordinatorImpl> | 70 CONTENT_EXPORT std::unique_ptr<ChildMemoryCoordinatorImpl> |
64 CreateChildMemoryCoordinator(mojom::MemoryCoordinatorHandlePtr parent, | 71 CreateChildMemoryCoordinator(mojom::MemoryCoordinatorHandlePtr parent, |
65 ChildMemoryCoordinatorDelegate* delegate); | 72 ChildMemoryCoordinatorDelegate* delegate); |
66 | 73 |
67 } // namespace content | 74 } // namespace content |
68 | 75 |
69 #endif // CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ | 76 #endif // CONTENT_CHILD_MEMORY_CHILD_MEMORY_COORDINATOR_IMPL_H_ |
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