1 // Copyright 2013 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 #include "chrome/browser/extensions/api/system_memory/memory_info_provider.h" 6 7 #include "base/sys_info.h" 8 9 namespace extensions { 10 11 using api::system_memory::MemoryInfo; 12 13 // Static member intialization. 14 base::LazyInstance<scoped_refptr<MemoryInfoProvider> > 15 MemoryInfoProvider::provider_ = LAZY_INSTANCE_INITIALIZER; 16 17 MemoryInfoProvider::MemoryInfoProvider() {} 18 19 MemoryInfoProvider::~MemoryInfoProvider() {} 20 21 const MemoryInfo& MemoryInfoProvider::memory_info() const { 22 return info_; 23 } 24 25 void MemoryInfoProvider::InitializeForTesting( 26 scoped_refptr<MemoryInfoProvider> provider) { 27 DCHECK(provider.get() != NULL); 28 provider_.Get() = provider; 29 } 30 31 bool MemoryInfoProvider::QueryInfo() { 32 info_.capacity = static_cast<double>(base::SysInfo::AmountOfPhysicalMemory()); 33 info_.available_capacity = 34 static_cast<double>(base::SysInfo::AmountOfAvailablePhysicalMemory()); 35 return true; 36 } 37 38 // static 39 MemoryInfoProvider* MemoryInfoProvider::Get() { 40 if (provider_.Get().get() == NULL) 41 provider_.Get() = new MemoryInfoProvider(); 42 return provider_.Get(); 43 } 44 45 } // namespace extensions 46
