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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 #ifndef ATHENA_RESOURCE_MANAGER_PUBLIC_RESOURCE_MANAGER_DLEGATE_H_ | |
| 6 #define ATHENA_RESOURCE_MANAGER_PUBLIC_RESOURCE_MANAGER_DLEGATE_H_ | |
| 7 | |
| 8 #include <string> | |
| 9 | |
| 10 #include "athena/athena_export.h" | |
| 11 #include "base/macros.h" | |
| 12 | |
| 13 namespace athena { | |
| 14 | |
| 15 // The resource manager delegate which abstracts system function calls to allow | |
| 16 // unit tests to override them. | |
| 17 class ATHENA_EXPORT ResourceManagerDelegate { | |
| 18 public: | |
| 19 static ResourceManagerDelegate* CreateResourceManagerDelegate(); | |
| 20 | |
| 21 ResourceManagerDelegate() {} | |
| 22 virtual ~ResourceManagerDelegate() {} | |
| 23 | |
| 24 // Returns the percentage of memory used in the system. | |
| 25 virtual int GetUsedMemoryInPercent() = 0; | |
| 26 | |
| 27 // Returns the time memory pressure interval time in ms to be used by the | |
| 28 // memory pressure monitoring system. This is also used as the default time | |
| 29 // difference between resource de-allocation operation calls. | |
| 30 virtual int MemoryPressureIntervalInMS() = 0; | |
| 31 }; | |
| 32 | |
| 33 } // namespace athena | |
| 34 | |
| 35 #endif // ATHENA_RESOURCE_MANAGER_PUBLIC_RESOURCE_MANAGER_DLEGATE_H_ | |
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