2013-10-12 15:25:45 +08:00
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/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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2014-01-07 11:47:11 +08:00
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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2013-10-12 15:25:45 +08:00
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CCDATA_H__
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#define __CCDATA_H__
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2014-09-10 08:17:07 +08:00
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#include "platform/CCPlatformMacros.h"
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2013-12-23 13:45:31 +08:00
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#include <stdint.h> // for ssize_t on android
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#include <string> // for ssize_t on linux
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2014-09-10 07:50:02 +08:00
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#include "platform/CCStdC.h" // for ssize_t on window
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2013-10-12 15:25:45 +08:00
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NS_CC_BEGIN
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2015-03-19 10:33:11 +08:00
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/**
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2015-03-24 11:15:40 +08:00
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* @addtogroup base
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2015-03-18 20:51:18 +08:00
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* @js NA
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2015-03-17 20:49:00 +08:00
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* @lua NA
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2015-03-18 20:51:18 +08:00
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*/
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2013-12-18 14:58:17 +08:00
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class CC_DLL Data
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{
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public:
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2015-03-17 20:49:00 +08:00
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/**
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* This parameter is defined for convenient reference if a null Data object is needed.
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*/
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2013-12-18 14:58:17 +08:00
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static const Data Null;
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2015-03-17 20:49:00 +08:00
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/**
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* Constructor of Data.
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*/
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2013-12-18 14:58:17 +08:00
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Data();
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2015-03-17 20:49:00 +08:00
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/**
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* Copy constructor of Data.
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*/
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2013-12-18 14:58:17 +08:00
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Data(const Data& other);
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2015-03-17 20:49:00 +08:00
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/**
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* Copy constructor of Data.
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*/
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2013-12-18 14:58:17 +08:00
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Data(Data&& other);
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2015-03-17 20:49:00 +08:00
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/**
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* Destructor of Data.
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*/
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2013-10-12 15:25:45 +08:00
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~Data();
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2013-12-18 14:58:17 +08:00
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2015-03-17 20:49:00 +08:00
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/**
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* Overroads of operator=.
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*/
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2013-12-18 14:58:17 +08:00
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Data& operator= (const Data& other);
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2015-03-17 20:49:00 +08:00
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/**
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* Overroads of operator=.
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*/
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2013-12-18 14:58:17 +08:00
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Data& operator= (Data&& other);
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2013-10-12 15:25:45 +08:00
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/**
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2015-03-17 20:49:00 +08:00
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* Gets internal bytes of Data. It will retrun the pointer directly used in Data, so don't delete it.
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*
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* @return Pointer of bytes used internal in Data.
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2013-10-12 15:25:45 +08:00
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*/
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unsigned char* getBytes() const;
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2015-03-17 20:49:00 +08:00
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2013-10-12 15:25:45 +08:00
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/**
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2015-03-17 20:49:00 +08:00
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* Gets the size of the bytes.
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*
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* @return The size of bytes of Data.
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2013-10-12 15:25:45 +08:00
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*/
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2013-12-05 17:19:01 +08:00
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ssize_t getSize() const;
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2013-10-12 15:25:45 +08:00
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2013-12-18 14:58:17 +08:00
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/** Copies the buffer pointer and its size.
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* @note This method will copy the whole buffer.
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* Developer should free the pointer after invoking this method.
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* @see Data::fastSet
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2013-10-12 15:25:45 +08:00
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*/
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2014-07-18 07:44:39 +08:00
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void copy(const unsigned char* bytes, const ssize_t size);
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2013-12-18 14:58:17 +08:00
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2013-12-20 21:41:20 +08:00
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/** Fast set the buffer pointer and its size. Please use it carefully.
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2013-12-18 14:58:17 +08:00
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* @param bytes The buffer pointer, note that it have to be allocated by 'malloc' or 'calloc',
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* since in the destructor of Data, the buffer will be deleted by 'free'.
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2013-12-20 21:41:20 +08:00
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* @note 1. This method will move the ownship of 'bytes'pointer to Data,
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* 2. The pointer should not be used outside after it was passed to this method.
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2013-12-18 14:58:17 +08:00
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* @see Data::copy
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*/
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void fastSet(unsigned char* bytes, const ssize_t size);
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2015-03-17 20:49:00 +08:00
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/**
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* Clears data, free buffer and reset data size.
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*/
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2013-12-20 21:41:20 +08:00
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void clear();
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2015-03-17 20:49:00 +08:00
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/**
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* Check whether the data is null.
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*
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* @return True if the the Data is null, false if not.
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*/
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2013-12-18 14:58:17 +08:00
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bool isNull() const;
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private:
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void move(Data& other);
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2013-10-12 15:25:45 +08:00
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private:
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unsigned char* _bytes;
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2013-12-05 17:19:01 +08:00
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ssize_t _size;
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2013-10-12 15:25:45 +08:00
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};
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2015-03-24 11:15:40 +08:00
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/** @} */
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2013-10-12 15:25:45 +08:00
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NS_CC_END
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#endif // __CCDATA_H__
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