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File stream interface, reading & writing. More...
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 IFX_FileStream * | Retain ()=0 |
Create a shared 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... | |
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virtual void | ClearRange () |
Clear accessing range set by function IFX_FileRead::SetRange. More... | |
virtual FX_BOOL | SetRange (FX_INT64 offset, FX_INT64 size) |
Set accessing range. More... | |
File stream interface, reading & writing.
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pure virtual |
Flush internal buffer.
Implements IFX_FileWrite.
Implemented in CFX_CachedFileRead.
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pure virtual |
Get the current reading position in stream.
Reimplemented from IFX_FileRead.
Implemented in CFX_CachedFileRead.
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pure virtual |
Get the current stream size, in bytes.
Implements IFX_FileWrite.
Implemented in CFX_CachedFileRead.
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pure virtual |
Determine whether reach the end of stream.
Reimplemented from IFX_FileRead.
Implemented in CFX_CachedFileRead.
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pure virtual |
Read a data block from stream.
[in,out] | buffer | Pointer to a buffer receiving data. |
[in] | offset | Byte offset from beginning of the file, the position to read data. |
[in] | size | Number of bytes to be read from stream. |
Implements IFX_FileRead.
Implemented in CFX_CachedFileRead.
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pure virtual |
Read data block from stream.
[in,out] | buffer | Buffer to store data. |
[in] | size | Total size of buffer, in bytes. |
Reimplemented from IFX_FileRead.
Implemented in CFX_CachedFileRead.
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pure virtual |
Destroy the current instance.
Implements IFX_FileWrite.
Implemented in CFX_CachedFileRead.
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pure virtual |
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pure virtual |
Write a block data into stream.
[in] | buffer | Pointer to the data block. |
[in] | offset | Byte offset from beginning of the file, the position to write data. |
[in] | size | The length in bytes of the buffer. |
Implements IFX_FileWrite.
Implemented in CFX_CachedFileRead.
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inlinevirtual |
Write a block data to the end of current stream.
[in] | buffer | Pointer to the data block. |
[in] | size | The length in bytes of the buffer. |
Reimplemented from IFX_FileWrite.