67 lines
1.2 KiB
C++
67 lines
1.2 KiB
C++
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// Copyright (c) 2013 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "base/memory/discardable_memory.h"
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#include "base/logging.h"
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namespace base {
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DiscardableMemory::DiscardableMemory()
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: memory_(NULL),
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size_(0),
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is_locked_(false)
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#if defined(OS_ANDROID)
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, fd_(-1)
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#endif // OS_ANDROID
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{
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DCHECK(Supported());
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}
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void* DiscardableMemory::Memory() const {
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DCHECK(is_locked_);
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return memory_;
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}
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// Stub implementations for platforms that don't support discardable memory.
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#if !defined(OS_ANDROID) && !defined(OS_MACOSX)
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DiscardableMemory::~DiscardableMemory() {
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NOTIMPLEMENTED();
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}
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// static
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bool DiscardableMemory::Supported() {
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return false;
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}
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bool DiscardableMemory::InitializeAndLock(size_t size) {
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NOTIMPLEMENTED();
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return false;
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}
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LockDiscardableMemoryStatus DiscardableMemory::Lock() {
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NOTIMPLEMENTED();
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return DISCARDABLE_MEMORY_FAILED;
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}
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void DiscardableMemory::Unlock() {
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NOTIMPLEMENTED();
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}
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// static
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bool DiscardableMemory::PurgeForTestingSupported() {
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return false;
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}
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// static
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void DiscardableMemory::PurgeForTesting() {
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NOTIMPLEMENTED();
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}
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#endif // OS_*
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} // namespace base
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