| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_BROWSER_MEMORY_MEMORY_MONITOR_ANDROID_H_ |
| #define CONTENT_BROWSER_MEMORY_MEMORY_MONITOR_ANDROID_H_ |
| |
| #include <jni.h> |
| |
| #include "base/android/application_status_listener.h" |
| #include "content/browser/memory/memory_monitor.h" |
| |
| namespace content { |
| |
| // A memory monitor for the Android system. |
| class CONTENT_EXPORT MemoryMonitorAndroid : public MemoryMonitor { |
| public: |
| static std::unique_ptr<MemoryMonitorAndroid> Create(); |
| |
| // C++ counter-part of ActivityManager.MemoryInfo |
| struct MemoryInfo { |
| jlong avail_mem; |
| jboolean low_memory; |
| jlong threshold; |
| jlong total_mem; |
| }; |
| |
| // Delegate interface used by MemoryMonitorAndroid. |
| class Delegate { |
| public: |
| Delegate() {} |
| virtual ~Delegate() {}; |
| |
| // Get MemoryInfo. Implementations should fill |out| accordingly. |
| virtual void GetMemoryInfo(MemoryInfo* out) = 0; |
| }; |
| |
| MemoryMonitorAndroid(std::unique_ptr<Delegate> delegate); |
| ~MemoryMonitorAndroid() override; |
| |
| // MemoryMonitor implementation: |
| int GetFreeMemoryUntilCriticalMB() override; |
| |
| // Get memory info from the Android system. |
| void GetMemoryInfo(MemoryInfo* out); |
| |
| Delegate* delegate() { return delegate_.get(); } |
| |
| private: |
| std::unique_ptr<Delegate> delegate_; |
| |
| DISALLOW_COPY_AND_ASSIGN(MemoryMonitorAndroid); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_MEMORY_MEMORY_MONITOR_ANDROID_H_ |