| // Copyright 2014 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. |
| |
| #ifndef COBALT_DOM_GLOBAL_STATS_H_ |
| #define COBALT_DOM_GLOBAL_STATS_H_ |
| |
| #include "base/compiler_specific.h" |
| #include "base/memory/singleton.h" |
| #include "cobalt/base/c_val.h" |
| |
| namespace cobalt { |
| |
| namespace xhr { |
| class XMLHttpRequest; |
| } // namespace xhr |
| |
| namespace dom { |
| |
| class Attr; |
| class DOMStringMap; |
| class DOMTokenList; |
| class HTMLCollection; |
| class NamedNodeMap; |
| class Node; |
| class NodeList; |
| |
| // This singleton class is used to track DOM-related statistics. |
| class GlobalStats { |
| public: |
| static GlobalStats* GetInstance(); |
| |
| bool CheckNoLeaks(); |
| |
| void Add(Attr* object); |
| void Add(DOMStringMap* object); |
| void Add(DOMTokenList* object); |
| void Add(HTMLCollection* object); |
| void Add(NamedNodeMap* object); |
| void Add(Node* object); |
| void Add(NodeList* object); |
| void AddEventListener(); |
| void Remove(Attr* object); |
| void Remove(DOMStringMap* object); |
| void Remove(DOMTokenList* object); |
| void Remove(HTMLCollection* object); |
| void Remove(NamedNodeMap* object); |
| void Remove(Node* object); |
| void Remove(NodeList* object); |
| void RemoveEventListener(); |
| |
| int GetNumEventListeners() const { return num_event_listeners_; } |
| int GetNumNodes() const { return num_nodes_; } |
| |
| void StartDispatchEvent(); |
| void StopDispatchEvent(); |
| |
| void Add(xhr::XMLHttpRequest* object); |
| void Remove(xhr::XMLHttpRequest* object); |
| void IncreaseXHRMemoryUsage(size_t delta); |
| void DecreaseXHRMemoryUsage(size_t delta); |
| |
| private: |
| GlobalStats(); |
| ~GlobalStats(); |
| |
| // DOM-related tracking |
| base::CVal<int> num_attrs_; |
| base::CVal<int> num_dom_string_maps_; |
| base::CVal<int> num_dom_token_lists_; |
| base::CVal<int, base::CValPublic> num_event_listeners_; |
| base::CVal<int> num_html_collections_; |
| base::CVal<int> num_named_node_maps_; |
| base::CVal<int, base::CValPublic> num_nodes_; |
| base::CVal<int> num_node_lists_; |
| |
| base::CVal<int> num_active_dispatch_events_; |
| |
| // XHR-related tracking |
| base::CVal<int> num_xhrs_; |
| base::CVal<base::cval::SizeInBytes> xhr_memory_; |
| |
| friend struct DefaultSingletonTraits<GlobalStats>; |
| DISALLOW_COPY_AND_ASSIGN(GlobalStats); |
| }; |
| |
| } // namespace dom |
| } // namespace cobalt |
| |
| #endif // COBALT_DOM_GLOBAL_STATS_H_ |