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 BASE_MEMORY_DISCARDABLE_MEMORY_MALLOC_H_ 6#define BASE_MEMORY_DISCARDABLE_MEMORY_MALLOC_H_ 7 8#include "base/memory/discardable_memory.h" 9 10namespace base { 11namespace internal { 12 13class DiscardableMemoryMalloc : public DiscardableMemory { 14 public: 15 explicit DiscardableMemoryMalloc(size_t size); 16 virtual ~DiscardableMemoryMalloc(); 17 18 bool Initialize(); 19 20 // Overridden from DiscardableMemory: 21 virtual DiscardableMemoryLockStatus Lock() OVERRIDE; 22 virtual void Unlock() OVERRIDE; 23 virtual void* Memory() const OVERRIDE; 24 25 private: 26 scoped_ptr<uint8, FreeDeleter> memory_; 27 const size_t size_; 28 29 DISALLOW_COPY_AND_ASSIGN(DiscardableMemoryMalloc); 30}; 31 32} // namespace internal 33} // namespace base 34 35#endif // BASE_MEMORY_DISCARDABLE_MEMORY_MALLOC_H_ 36