iopcbStream data structure

The distributed data management (DDM) architecture iopcbStream is a data structure that is contained in the OUTAIBIOPCB DDM object when the object is passed back in a reply message.

Format

Table 1. Format of the iopcbStream data structure
Byte offset	Length	Name	Description
0	1	IOPCB null indicator	Binary integer. X'00' Indicates that the iopcbStream data structure is present. X'FF' Indicates that the iopcbStream data structure contains no data after the IOPCB null indicator. The total length of the iopcbStream data structure is 1 byte.
1	1	LTERM name null indicator	Binary integer. X'00' Indicates that the LTERM name field is present at offset 2 and that the field contains a logical terminal name. X'FF' Indicates that the LTERM name field is not present.
2	8	LTERM name	Character string.
2 or 10	2	Reserved	Reserved.
4 or 12	2	Status code	Character data.
6 or 14	4	Local data and time	Byte array.
10 or 18	4	Input message sequence number	Byte array.
14 or 22	8	Message output descriptor name	Character string.
22 or 30	8	User ID	Character string.
30 or 38	8	Group name	Character string.
38 or 46	12	Timestamp	Byte Array.
50 or 58	1	User ID indicator	Character data.

Usage

The figure and description in the preceding sections serve as the FD:OCA early descriptor definition of the iopcbStream data structure. Do not confuse the iopcbStream data structure with the OUTAIBIOPCB reply object (X'CC08') that contains it when iopcbStream is passed back in a reply message.