COBOL Manual for TNS and TNS/R Programs

Libraries and Utility Routines
HP COBOL Manual for TNS and TNS/R Programs—522555-006
13-132
PUTASSIGNVALUE
cplist
is a checkpoint list in which the routine records the changes to the message
storage data space. Example:
01 CP-LIST-1.
05 MAX-COUNT PIC 9999 COMP VALUE IS 100.
05 CURRENT-COUNT PIC 9999 COMP VALUE IS 0.
05 ELEMENT PIC 9(9) COMP OCCURS 100 TIMES.
The initial value of MAX-COUNT must be the same as the number of occurrences
of ELEMENT.
In the non-CRE environment, the initial value of MAX-COUNT is the maximum
number of elements that cplist can contain. In the CRE, the maximum number
of elements that cplist can contain is the initial value of MAX-COUNT divided
by 2.5. The cplist in the preceding example can contain 100 elements in the
non-CRE environment, but only 40 in the CRE.
The required number of table elements depends on the number of operations the
list must record. The worst-case situation uses six elements.
A complete checkpoint list is required only when a program has a backup that must
be kept current. When a record of changes is not required, a null checkpoint list
can be used. This is an example description:
77 CP-LIST-1 PIC 9(9) COMP VALUE IS 0.
message-number
identifies a specific ASSIGN message. message-number can be a DISPLAY or
COMPUTATIONAL numeric data item, a numeric literal, or an expression enclosed
in parentheses. The value must evaluate to a positive integer. Example:
22 MESSAGE-NUMBER PIC S9999 COMPUTATIONAL.
Because each saved ASSIGN message is identified by a positive integer,
message-number refers to the integer value of the specific message. The set of
numbers associated with the ASSIGN messages are integers from 1 to N, where N
is normally the number of ASSIGN messages saved during the initial process
creation.
result
is a DISPLAY or COMPUTATIONAL numeric data item assigned the result
returned by PUTASSIGNVALUE. Example:
05 RESULT PIC S9999 COMPUTATIONAL.
PUTASSIGNVALUE operates on the saved ASSIGN messages. The program must
have included a SAVE directive to save the message.