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An implementation of a Stream that reads and writes data in a DataBlock
| inline MemoryStream ()
| MemoryStream |
Constructor of an empty stream
| inline MemoryStream (const DataBlock& data)
| MemoryStream |
Constructor of aan initialized stream
Parameters:
| data | Initial data to be copied in the memory stream |
| inline const DataBlock& data ()
| data |
[const]
Get read-only access to the DataBlock held
Returns: Const reference to the DataBlock
| bool terminate ()
| terminate |
[virtual]
Do-nothing termination handler
Returns: True to signal the stream was closed
Reimplemented from Stream.
| bool valid ()
| valid |
[const virtual]
Do-nothing validity check
Returns: True to indicate the stream is valid
Reimplemented from Stream.
| int writeData (const void* buffer, int len)
| writeData |
[virtual]
Write new data to the DataBlock at current position, advance pointer
Parameters:
| buffer | Buffer of source data |
| len | Length of data to be written |
Returns: Number of bytes written, negative on error
Reimplemented from Stream.
| int readData (void* buffer, int len)
| readData |
[virtual]
Get data from internal DataBlock, advance pointer
Parameters:
| buffer | Buffer for getting the data |
| len | Length of the buffer |
Returns: Number of bytes read, negative on error, zero on end of data
Reimplemented from Stream.
| int64_t length ()
| length |
[virtual]
Get the length of the stream
Returns: Length of the DataBlock in memory
Reimplemented from Stream.
| int64_t seek (SeekPos pos, int64_t offset = 0)
| seek |
[virtual]
Set the read/write pointer
Parameters:
| pos | The seek start as enumeration |
| offset | The number of bytes to move the pointer from starting position |
Returns: The new position of the stream read/write pointer. Negative on failure
Reimplemented from Stream.
| DataBlock m_data | m_data |
[protected]
| int64_t m_offset | m_offset |
[protected]
| Generated by: paulc on bussard on Mon Mar 8 12:18:15 2010, using kdoc 2.0a54. |