COBOL Manual for TNS/E Programs (H06.08+, J06.03+)

characteristic
size-list
specifies the extent size for disk file creation. Extent sizes are specified as a number of file
pages to be allocated for one extent of the file. A file page is 2048 bytes of storage.
pri-extent-size
is an unsigned integer specifying the primary extent size. If EXT is omitted,
pri-extent-size defaults to 4.
sec-extent-size
is an unsigned integer specifying the secondary extent size. If EXT is omitted,
sec-extent-size defaults to 20. If sec-extent-size is omitted, the secondary extent
size defaults to the primary extent size.
file-code
is 101 (for an EDIT file) or an unsigned integer in the range 0 through 99 or in the range 1000
through 32767, which specifies a file code for disk file creation. If the CODE clause is omitted,
a file-code of 0 is used.
EXCLUSIVE, SHARED, PROTECTED
specify an exclusion mode for disk file reading or writing. This can override an implied exclusion
mode, but not an explicit exclusion mode specification in the OPEN statement.
I-O, INPUT, OUTPUT
specify an access mode for the disk file; however, the run-time routines ignore the value. The
COBOL OPEN statement controls the access mode entirely.
record-size
is an integer accepted by TACL as specifying record length, but the run-time routines ignore
the value. The record declaration in the COBOL program controls the record size entirely.
block-size
is an integer accepted by TACL as specifying block size. block-size determines the block
size.
584 Program Execution