37 lines
1.3 KiB
C
37 lines
1.3 KiB
C
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#ifndef HGL_IO_OUTPUT_STREAM_INCLUDE
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#define HGL_IO_OUTPUT_STREAM_INCLUDE
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#include<hgl/type/DataType.h>
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#include<hgl/io/SeekAccess.h>
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namespace hgl
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{
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namespace io
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{
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/**
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* 数据输出流基类
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*/
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class OutputStream:public SeekAccess ///数据输出流基类
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{
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public:
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virtual ~OutputStream()=default;
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virtual void Close()=0; ///<关闭输出流
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virtual int64 Write(const void *,int64)=0; ///<写入数据
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virtual int64 WriteFully(const void *buf,int64 buf_size){return Write(buf,buf_size);} ///<充分写入,保证完整写入指定长度的数据
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virtual bool CanRestart()const=0; ///<是否可以复位
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virtual bool CanSeek()const=0; ///<是否可以定位
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virtual bool CanSize()const=0; ///<是否可以取得尺寸
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virtual bool Restart()=0; ///<复位访问指针
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virtual int64 Seek(int64,SeekOrigin=soBegin)=0; ///<移动访问指针
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virtual int64 Tell()const=0; ///<返回当前访问位置
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virtual int64 GetSize()const=0; ///<取得流长度
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virtual int64 Available()const=0; ///<剩下的可以不受阻塞写入的字节数
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};//class OutputStream
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}//namespace io
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}//namespace hgl
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#endif//HGL_IO_OUTPUT_STREAM_INCLUDE
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