The fields contained in the FCD are shown in the following table. The fields do not necessarily appear in this order; the
order is defined in the copybook or
xfhfcd3.cpy. For flags, the description refers to when the bit is set on. Bit 7 is the most significant (leftmost) bit. Unused bits are
reserved for future use.
Refer to the Operation Codes section to display details of how each operation uses these fields.
- fcd-file-status (fcd-status-key-1, fcd-status-key-2)
- Type: pic x
- User file status. After every operation except a COMMIT or ROLLBACK operation, this field is updated with a standard file
status value telling you the status of the operation. See also
fcd-access-mode and
fcd-status-type.
- fcd-length
- Type: pic xx comp-x
-
- Length of FCD. For FCD3 only.
- fcd-version
- Type: pic x comp-x
- Version number. Values can be:
- fcd-organization
- Type: pic x comp-x
- File organization. Values can be:
|
0
|
Line sequential |
|
1
|
Sequential
|
| 2 |
Indexed |
| 3 |
Relative |
- fcd-access-mode
- Type: pic x comp-x
- User status and access mode indicators.
User status is indicated by bit 7. The bit is set if you have defined a file status. Defining a file status can affect how
some operations (such as RETRYLOCK) are performed. When calling the File Handler directly, this bit should be set. However,
file status is obtained directly from
fcd-file-status.
Access mode is indicated by bits 6 through 0:
| 0
|
Sequential access mode
|
| 4
|
Random access mode
|
| 8
|
Dynamic access mod
|
- fcd-open-mode
- Type: pic x comp-x
- Open mode:
|
0
|
INPUT
|
|
1
|
OUTPUT
|
|
2
|
I/O
|
|
3
|
EXTEND |
|
128
|
File is closed |
You must set this field to 128 before opening a file.
- fcd-recording-mode
- Type: pic x comp-x
- Recording mode:
- fcd-file-format
- Type: pic x comp-x
- File format:
|
0
|
Default format |
|
1
|
C-ISAM |
|
2
|
Level II V2.5 COBOL |
|
3
|
IDXFORMAT"3"
|
|
4
|
IDXFORMAT"4" |
|
8
|
IDXFORMAT"8"
|
| 11 |
Mainframe print file |
| 12
|
IDXFORMAT"12" |
|
14
|
Heap file |
|
15
|
ESDS |
- fcd-device-flag