The data source structure.
Provides a generic interface to different data sources, where a data source can be anything that can be read from and/or written to. Integer I/O Functions and Floating Point I/O Functions are also provided for data source I/O.
Inherit from SObject.
Byte order of the source.
Last write count (bytes).
Last read count (bytes).
Total write count (bytes).
Total read count (bytes).