Foxit PDF SDK
IFX_ChunkFileStream Class Referenceabstract

Chunk-based File stream interface, reading & writing. More...

Inheritance diagram for IFX_ChunkFileStream:
IFX_FileStream IFX_FileRead IFX_FileWrite IFX_StreamRead IFX_StreamWrite

Public Member Functions

virtual FX_BOOL Flush ()=0
 Flush internal buffer. More...
 
virtual FX_INT64 GetPosition ()=0
 Get the current reading position in stream. More...
 
virtual FX_INT64 GetSize ()=0
 Get the current stream size, in bytes. More...
 
virtual FX_BOOL IsEOF ()=0
 Determine whether reach the end of stream. More...
 
virtual FX_BOOL ReadBlock (void *buffer, FX_INT64 offset, size_t size)=0
 Read a data block from stream. More...
 
virtual size_t ReadBlock (void *buffer, size_t size)=0
 Read data block from stream. More...
 
virtual void Release ()=0
 Destroy the current instance. More...
 
virtual FX_BOOL WriteBlock (const void *buffer, FX_INT64 offset, size_t size)=0
 Write a block data into stream. More...
 
virtual FX_BOOL WriteBlock (const void *buffer, size_t size)
 Write a block data to the end of current stream. More...
 
- Public Member Functions inherited from IFX_FileRead
virtual void ClearRange ()
 Clear accessing range set by function IFX_FileRead::SetRange. More...
 
virtual FX_INT64 SetPosition (FX_INT64 pos)
 Set the current file accessing position. More...
 
virtual FX_BOOL SetRange (FX_INT64 offset, FX_INT64 size)
 Set accessing range. More...
 

Protected Member Functions

virtual IFX_FileStreamRetain ()=0
 Create a shared instance. More...
 

Detailed Description

Chunk-based File stream interface, reading & writing.