78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
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/*
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* Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef WEBRTC_SYSTEM_WRAPPERS_INTERFACE_MAP_WRAPPER_H_
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#define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_MAP_WRAPPER_H_
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#include <map>
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#include "constructor_magic.h"
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namespace webrtc {
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class MapItem
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{
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friend class MapWrapper;
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public:
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MapItem(int id, void* ptr);
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virtual ~MapItem();
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void* GetItem();
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int GetId();
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unsigned int GetUnsignedId();
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void SetItem(void* ptr);
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private:
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int item_id_;
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void* item_pointer_;
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DISALLOW_COPY_AND_ASSIGN(MapItem);
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};
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class MapWrapper
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{
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public:
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MapWrapper();
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~MapWrapper();
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// Puts a pointer to anything in the map and associates it with id. Note, id
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// needs to be unique for all items in the map.
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int Insert(int id, void* ptr);
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// Removes item from map.
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int Erase(MapItem* item);
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// Finds item with associated with id and removes it from the map.
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int Erase(int id);
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// Returns the number of elements stored in the map.
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int Size() const;
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// Returns a pointer to the first MapItem in the map.
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MapItem* First() const;
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// Returns a pointer to the last MapItem in the map.
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MapItem* Last() const;
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// Returns a pointer to the MapItem stored after item in the map.
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MapItem* Next(MapItem* item) const;
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// Returns a pointer to the MapItem stored before item in the map.
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MapItem* Previous(MapItem* item) const;
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// Returns a pointer to the MapItem associated with id from the map.
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MapItem* Find(int id) const;
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private:
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std::map<int, MapItem*> map_;
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DISALLOW_COPY_AND_ASSIGN(MapWrapper);
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};
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} // namespace webrtc
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#endif // WEBRTC_SYSTEM_WRAPPERS_INTERFACE_MAP_WRAPPER_H_
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