IEFQMREQ reads the SWA information into a buffer that you provide,
or writes information from your buffer into the SWA. By specifying
a function code when you invoke the macro, you can request the following
IEFQMREQ services. Use the symbolic function codes that are in the
QMPA mapping macro:
- Read — Reads the data area of a specified
block into your buffer. IEFQMREQ reads 176 bytes of data from SWA
into your buffer. If the requested data is less than 176 bytes in
length, IEFQMREQ pads the data with zeroes so the amount read into
your buffer is 176 bytes.
- Write — Writes information from your
buffer into the block that you specify. Only the data area is written,
not the prefix area.
These are the only general-use programming interface function codes.