Each transportable program contains a descriptor and a body. A
transportable program descriptor (TP descriptor) indicates the beginning
of a transportable program and contains the primary name. The body
contains the data that is required to rebuild the program object.
The overall structure of a transportable program is shown in Figure 1. The TP descriptor record is mapped by TFMT_TPDESC,
which is shown in Table 1.
Figure 1. Transportable
program structure
| Name | Description | ||
|---|---|---|---|
| TFMT_TPDESC | DSECT | Maps the descriptor record | |
| TFMT_TPEYE | DS | CL8 | Transportable program descriptor identifier. Contains string 'IEWTPDSC' |
| TFMT_TPLVL | DS | FL1 | Level number: 1 |
| TFMT_TPPOV | DS | FL1 | Program object version |
| TFMT_TPRS1 | DS | CL2 | Reserved |
| TFMT_TPLEN | DS | FL4 | Record length including the varying member name |
| TFMT_TPNAME_OFF | DS | FL2 | Offset to the primary (member) name relative to the beginning of TFMT_TPDESC |
| TFMT_TPRS2 | DS | FL2 | Reserved |
| TFMT_TPMEMNAM | DSECT | Maps primary name | |
| TFMT_TPMEM_LEN | DS | FL2 | Length of the primary name |
| TFMT_TPMEM_VAL | DS | CL8 | Primary (member) name, varying, with a maximum length of eight bytes. |