Data input and output areas

Data input and output areas must be contiguous areas of main storage allocated by the application in private storage and freed later on.

The areas have no header section, that is, the data starts at the first byte of the area and continues without gaps. The data contained in these areas are the interface records, which are described in the mapping macros CBDZHOEX and CBDZHIEX in MVS Data Areas Volume 1.

For the GET request, the output area might contain the definition of multiple objects on return, whereas the input area normally contains only one object.

Issue a HRB_DGET function to get the provided output data. The size of the output data is returned by the previous GET request. The application is responsible to allocate the correct output size. If the data does not fit into the size allocated by the application for the output area, the data will be truncated.