src/cobalt/dom/memory_info.cc

// Copyright 2016 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include "cobalt/dom/memory_info.h"

#include "cobalt/base/polymorphic_downcast.h"
#include "cobalt/dom/dom_settings.h"
#include "cobalt/script/javascript_engine.h"

namespace cobalt {
namespace dom {

uint32 MemoryInfo::total_js_heap_size(
    script::EnvironmentSettings* settings) const {
  DOMSettings* dom_settings =
      base::polymorphic_downcast<dom::DOMSettings*>(settings);
  size_t total_memory =
      dom_settings->javascript_engine()->UpdateMemoryStatsAndReturnReserved();
  return static_cast<uint32>(total_memory);
}

uint32 MemoryInfo::used_js_heap_size(
    script::EnvironmentSettings* settings) const {
  DOMSettings* dom_settings =
      base::polymorphic_downcast<dom::DOMSettings*>(settings);
  size_t total_memory =
      dom_settings->javascript_engine()->UpdateMemoryStatsAndReturnReserved();
  return static_cast<uint32>(total_memory);
}

}  // namespace dom
}  // namespace cobalt