| // Copyright 2013 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. |
| |
| #include "base/memory/discardable_memory.h" |
| |
| #include "base/logging.h" |
| #include "base/memory/discardable_memory_emulated.h" |
| #include "base/memory/discardable_memory_malloc.h" |
| |
| namespace base { |
| |
| // static |
| void DiscardableMemory::RegisterMemoryPressureListeners() { |
| internal::DiscardableMemoryEmulated::RegisterMemoryPressureListeners(); |
| } |
| |
| // static |
| void DiscardableMemory::UnregisterMemoryPressureListeners() { |
| internal::DiscardableMemoryEmulated::UnregisterMemoryPressureListeners(); |
| } |
| |
| // static |
| bool DiscardableMemory::ReduceMemoryUsage() { |
| return internal::DiscardableMemoryEmulated::ReduceMemoryUsage(); |
| } |
| |
| // static |
| void DiscardableMemory::GetSupportedTypes( |
| std::vector<DiscardableMemoryType>* types) { |
| const DiscardableMemoryType supported_types[] = { |
| DISCARDABLE_MEMORY_TYPE_EMULATED, |
| DISCARDABLE_MEMORY_TYPE_MALLOC |
| }; |
| types->assign(supported_types, supported_types + arraysize(supported_types)); |
| } |
| |
| // static |
| scoped_ptr<DiscardableMemory> DiscardableMemory::CreateLockedMemoryWithType( |
| DiscardableMemoryType type, size_t size) { |
| switch (type) { |
| case DISCARDABLE_MEMORY_TYPE_NONE: |
| case DISCARDABLE_MEMORY_TYPE_ASHMEM: |
| case DISCARDABLE_MEMORY_TYPE_MAC: |
| return scoped_ptr<DiscardableMemory>(); |
| case DISCARDABLE_MEMORY_TYPE_EMULATED: { |
| scoped_ptr<internal::DiscardableMemoryEmulated> memory( |
| new internal::DiscardableMemoryEmulated(size)); |
| if (!memory->Initialize()) |
| return scoped_ptr<DiscardableMemory>(); |
| |
| return memory.PassAs<DiscardableMemory>(); |
| } |
| case DISCARDABLE_MEMORY_TYPE_MALLOC: { |
| scoped_ptr<internal::DiscardableMemoryMalloc> memory( |
| new internal::DiscardableMemoryMalloc(size)); |
| if (!memory->Initialize()) |
| return scoped_ptr<DiscardableMemory>(); |
| |
| return memory.PassAs<DiscardableMemory>(); |
| } |
| } |
| |
| NOTREACHED(); |
| return scoped_ptr<DiscardableMemory>(); |
| } |
| |
| // static |
| void DiscardableMemory::PurgeForTesting() { |
| internal::DiscardableMemoryEmulated::PurgeForTesting(); |
| } |
| |
| } // namespace base |