eve::data::Compressor类 参考

Base class for backends for different compression formats. 更多...

#include <Compressor.h>

类 eve::data::Compressor 继承关系图:

Public 成员函数
virtual	~Compressor ()
virtual char *	compress (std::string format, const char *data, size_t dataSize, int level, size_t &compressedSize)=0
	Compresses input data, and returns the compressed result.
virtual char *	decompress (std::string format, const char *data, size_t dataSize, size_t &decompressedSize)=0
	Decompresses compressed data, and returns the decompressed result.
virtual bool	isSupported (std::string format) const =0
	Gets whether a specific format is supported by this backend.

静态 Public 成员函数
static Compressor *	getCompressor (std::string format)
	Gets a Compressor that can compress and decompress a specific format. Returns null if there are no supported compressors for the given format. Available formats are:

Protected 成员函数
	Compressor ()

详细描述

Base class for backends for different compression formats.

在文件 Compressor.h 第 13 行定义.

构造及析构函数说明

~Compressor()

virtual eve::data::Compressor::~Compressor ( )

inlinevirtual

在文件 Compressor.h 第 28 行定义.

Compressor()

eve::data::Compressor::Compressor ( )

inlineprotected

在文件 Compressor.h 第 66 行定义.

成员函数说明

compress()

virtual char * eve::data::Compressor::compress ( std::string  format, const char *  data, size_t  dataSize, int  level, size_t &  compressedSize  )

pure virtual

Compresses input data, and returns the compressed result.

参数

[in]	format	The format to compress to.
[in]	data	The input (uncompressed) data.
[in]	dataSize	The size in bytes of the input data.
[in]	level	The amount of compression to apply (between 0 and 9.) A value of -1 indicates the default amount of compression. Specific formats may not use every level.
[out]	compressedSize	The size in bytes of the compressed result.

返回

The newly compressed data (allocated with new[]).

在 eve::data::LZ4Compressor , 以及 eve::data::zlibCompressor 内被实现.

被这些函数引用 eve::data::compress().

decompress()

virtual char * eve::data::Compressor::decompress ( std::string  format, const char *  data, size_t  dataSize, size_t &  decompressedSize  )

pure virtual

Decompresses compressed data, and returns the decompressed result.

参数

[in]	format	The format the compressed data is in.
[in]	data	The input (compressed) data.
[in]	dataSize	The size in bytes of the compressed data.
[in,out]	decompressedSize	On input, the size in bytes of the original uncompressed data, or 0 if unknown. On return, the size in bytes of the decompressed data.

返回

The decompressed data (allocated with new[]).

在 eve::data::LZ4Compressor , 以及 eve::data::zlibCompressor 内被实现.

被这些函数引用 eve::data::decompress().

getCompressor()

Compressor * eve::data::Compressor::getCompressor ( std::string  format )

static

Gets a Compressor that can compress and decompress a specific format. Returns null if there are no supported compressors for the given format. Available formats are:

• "lz4"
• "zlib"
• "gzip"
• "deflate"

在文件 Compressor.cpp 第 342 行定义.

引用了 c.

被这些函数引用 eve::data::compress() , 以及 eve::data::decompress().

isSupported()

virtual bool eve::data::Compressor::isSupported ( std::string  format ) const

pure virtual

Gets whether a specific format is supported by this backend.

在 eve::data::LZ4Compressor , 以及 eve::data::zlibCompressor 内被实现.

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该类的文档由以下文件生成:

• src/modules/data/Compressor.h
• src/modules/data/Compressor.cpp