bdfp1m28Programming Concepts and Reference

DBFRL-Ensure an ECB Data Level Is Free

Use this macro to free an entry control block (ECB) data level.

Format




LEVEL=ecblvl
frees a specific ECB data level, where ecblvl is a hexadecimal number in the range X'0'-X'F'. Optionally, you can precede this hexadecimal number with a D to indicate that you are naming a data level.

Entry Requirements

None.

Normal Return

The specified data level is freed.

Error Return

 See Identifying Return Indicators and Errors for information about how to check the error indicators. 

Programming Considerations

Examples

Each of the following examples free data level C (also called data level DC) in an ECB. Freeing the data level ensures that the data level is available for use by a traditional TPF or ALCS program and that no TPFDF program can use this level in the ECB.

DBFRL LEVEL=C
 
DBFRL LEVEL=DC

Related Macros

None.