Modifying the EID by exits XTSEREQ and XTSEREQC
It is not possible to modify the EID to make major changes to requests. It is not possible, for example, to change a READQ request to a WRITEQ request. However, you can make minor changes to requests.
The list that follows shows the bits in the EID that can be modified. Any attempt to modify any other part of the EID is ignored.
- TS_BITS1
-
- X'02'
- The existence bit for SYSID.
- TS_EIDOPT7
- A user exit program at XTSEREQ can set the following on or off
for all WRITEQ TS commands:
- X'10'
- The existence bit for NOSUSPEND.
- X'08'
- The existence bit for MAIN.
The EID is reset to its original value before return to the application program. That is, changes made to the EID are retained for the duration of the temporary storage request only.
Note: Your user exit program is prevented from making major changes
to the EID. However, you must take great care when making the minor
modifications that are permitted.