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_ 36
