base/test/test_discardable_memory_allocator.cc

   1 // Copyright 2015 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 "base/test/test_discardable_memory_allocator.h"
   6
   7 #include <stdint.h>
   8
   9 #include "base/memory/discardable_memory.h"
  10
  11 namespace base {
  12 namespace {
  13
  14 class DiscardableMemoryImpl : public DiscardableMemory {
  15  public:
  16   explicit DiscardableMemoryImpl(size_t size) : data_(new uint8_t[size]) {}
  17
  18   // Overridden from DiscardableMemory:
  19   bool Lock() override { return false; }
  20   void Unlock() override {}
  21   void* data() const override { return data_.get(); }
  22
  23   trace_event::MemoryAllocatorDump* CreateMemoryAllocatorDump(
  24       const char* name,
  25       trace_event::ProcessMemoryDump* pmd) const override {
  26     return nullptr;
  27   }
  28
  29  private:
  30   scoped_ptr<uint8_t[]> data_;
  31 };
  32
  33 }  // namespace
  34
  35 TestDiscardableMemoryAllocator::TestDiscardableMemoryAllocator() {
  36 }
  37
  38 TestDiscardableMemoryAllocator::~TestDiscardableMemoryAllocator() {
  39 }
  40
  41 scoped_ptr<DiscardableMemory>
  42 TestDiscardableMemoryAllocator::AllocateLockedDiscardableMemory(size_t size) {
  43   return make_scoped_ptr(new DiscardableMemoryImpl(size));
  44 }
  45
  46 }  // namespace base