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# pragma once
# include <string>
enum class StreamError
{
STREAM_OK = 0 , // 成功
STREAM_INVALID_HANDLE = 1 , // handle 不存在
STREAM_WRITE_FAILED = 2 , // 写入失败（缓冲或解析错误）
STREAM_ALREADY_CLOSED = 3 , // 已关闭
STREAM_UNKNOWN_TYPE = 4 // Open 类型错误
} ;
/**
* @brief 数据流抽象类
*/
class INativeStream
{
public :
virtual void Write ( const void * data , size_t size ) = 0 ;
virtual void Complete ( ) = 0 ;
virtual ~ INativeStream ( ) { }
} ;
/**
* @brief 缓冲流：累积 Write 的数据，
*/
class BufferStream : public INativeStream
{
public :
void Write ( const void * data , size_t size ) override ;
void Complete ( ) override ;
const std : : string & GetContent ( ) const { return m_buffer ; }
private :
std : : string m_buffer ;
} ;