QSTATUS FM header format
The following table shows the format of the QSTATUS FM header.
| Byte | Bits | Name | Contents |
|---|---|---|---|
| 0 | FMHL | Length | |
| 1 | 0 | FMHC | |
| 1-7 | FMHT | Type: B'0000110' | |
| 2-3 | FMH6CMD | Command code: X'0A0A' | |
| 4 | FMH6MOD | Modifier | |
| 0 | FMH6LNSZ | B'0' 1-Byte length fields | |
| 1-7 | Reserved | ||
| 5 | FMH6XCT | Length of fixed-length parameters |
|
| 6 | QORG | Type of queue add/retrieval requests.1 |
|
| 7 | 0-4 | Not supported by IMS. Bit values should be B'0'. | |
| 5 | QINVCUR | B'0' if message is a reply to QPURGE. |
|
| 6-7 | Not supported by IMS. | ||
| 8 | Reserved | ||
| 9-12 | QCURSOR | Current cursor value is 02 | |
| 13-16 | QSENSE | Sense data3 | |
| 17-n | QNAME | Message ID (ATTDQN/SCDDQN) |
Notes:
- If QSTATUS is sent by IMS in reply to the QPURGE, QORG is not specified (that is, QORG contains the value of zero). If QSTATUS is sent by IMS in reply to QGET by cursor request, QORG is set to linear (that is, QORG contains the value of two).
- This parameter is present only if the QINVCUR value is set to B'1'. The cursor value is set to 0. A QGETN request retrieves the first page of the message for which this error (invalid cursor) was detected.
- This parameter is present only if the QINVCUR value is set to B'1'. It consists of the DFS223 error message as a binary number.