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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_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ | 5 #ifndef CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ |
6 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ | 6 #define CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ |
7 | 7 |
8 #include "base/memory/memory_coordinator_client_registry.h" | 8 #include "base/memory/memory_coordinator_client_registry.h" |
9 #include "base/memory/singleton.h" | 9 #include "base/memory/singleton.h" |
10 #include "base/process/process_handle.h" | 10 #include "base/process/process_handle.h" |
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35 | 35 |
36 // Returns number of children. Only used for testing. | 36 // Returns number of children. Only used for testing. |
37 size_t NumChildrenForTesting(); | 37 size_t NumChildrenForTesting(); |
38 | 38 |
39 // Dispatches a memory state change to the provided process. Returns true if | 39 // Dispatches a memory state change to the provided process. Returns true if |
40 // the process is tracked by this coordinator and successfully dispatches, | 40 // the process is tracked by this coordinator and successfully dispatches, |
41 // returns false otherwise. | 41 // returns false otherwise. |
42 bool SetMemoryState( | 42 bool SetMemoryState( |
43 int render_process_id, mojom::MemoryState memory_state); | 43 int render_process_id, mojom::MemoryState memory_state); |
44 | 44 |
| 45 // Dispatches a memory state change to registered MemoryCoordinatorClients. |
| 46 void SetClientMemoryState(base::MemoryState memory_state); |
| 47 |
45 // Returns the memory state of the specified render process. Returns UNKNOWN | 48 // Returns the memory state of the specified render process. Returns UNKNOWN |
46 // if the process is not tracked by this coordinator. | 49 // if the process is not tracked by this coordinator. |
47 mojom::MemoryState GetMemoryState(int render_process_id) const; | 50 mojom::MemoryState GetMemoryState(int render_process_id) const; |
48 | 51 |
| 52 // Returns the memory state of registered MemoryCoordinatorClients. |
| 53 base::MemoryState GetClientMemoryState() const; |
| 54 |
49 protected: | 55 protected: |
50 // Constructor. Protected as this is a singleton, but accessible for | 56 // Constructor. Protected as this is a singleton, but accessible for |
51 // unittests. | 57 // unittests. |
52 MemoryCoordinator(); | 58 MemoryCoordinator(); |
53 | 59 |
54 // Adds the given ChildMemoryCoordinator as a child of this coordinator. | 60 // Adds the given ChildMemoryCoordinator as a child of this coordinator. |
55 void AddChildForTesting(int dummy_render_process_id, | 61 void AddChildForTesting(int dummy_render_process_id, |
56 mojom::ChildMemoryCoordinatorPtr child); | 62 mojom::ChildMemoryCoordinatorPtr child); |
57 | 63 |
58 // Callback invoked by mojo when the child connection goes down. Exposed | 64 // Callback invoked by mojo when the child connection goes down. Exposed |
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79 }; | 85 }; |
80 | 86 |
81 // A map from process ID (RenderProcessHost::GetID()) to child process info. | 87 // A map from process ID (RenderProcessHost::GetID()) to child process info. |
82 using ChildInfoMap = std::map<int, ChildInfo>; | 88 using ChildInfoMap = std::map<int, ChildInfo>; |
83 | 89 |
84 // Tracks child processes. An entry is added when a renderer connects to | 90 // Tracks child processes. An entry is added when a renderer connects to |
85 // MemoryCoordinator and removed automatically when an underlying binding is | 91 // MemoryCoordinator and removed automatically when an underlying binding is |
86 // disconnected. | 92 // disconnected. |
87 ChildInfoMap children_; | 93 ChildInfoMap children_; |
88 | 94 |
| 95 base::MemoryState client_memory_state_; |
| 96 |
89 DISALLOW_COPY_AND_ASSIGN(MemoryCoordinator); | 97 DISALLOW_COPY_AND_ASSIGN(MemoryCoordinator); |
90 }; | 98 }; |
91 | 99 |
92 } // namespace content | 100 } // namespace content |
93 | 101 |
94 #endif // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ | 102 #endif // CONTENT_BROWSER_MEMORY_MEMORY_COORDINATOR_H_ |
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