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Procedure 1
Using PCFP
Clear the function packet to zeros to ensure that each item in the function packet is
initially set at its default value. This allows you to concentrate on the values you want to
change.
Procedure 2
Set the necessary items in the DELETE_FILE function packet:
• Set INTERFACE_LEVEL to fp_interface_level_1 (which is defined as 1).
• Set WORK_AREA_SIZE to fp_max_work_area_delete_file (1,000, which is the
maximum work area size for the DELETE_FILE function).
You do not need to set the other items in the function packet, either because the default
value (0) is the desired value for these, or because PCFP uses these items to return
information to the calling program. For example, in Figures 1–2 and 1–3, the items
EXCLUSIVE_ASSIGN (a) and ZERO_RELEASED_STORAGE (b) in the specific part of the
function packet are left initialized to FALSE (0).
Figures 1–2 and 1–3 compare the items of the DELETE_FILE function packet to the
function packet completed with the numeric equivalents for the items.
0 INTERFACE_LEVEL
1 a b
2 WORK_AREA_SIZE
3 SOFTWARE_LEVEL
4
5 GEN_DATE_TIME
6
7 ERROR_CLASS ERROR_FILE SUB_ERROR_CODE
8 ERROR_CODE
9 AUX_ERROR_CODE
10 a b
Figure 1–2. DELETE_FILE Function Packet Items
7830 9796–013 1–5