LINC Programming Reference Manual - Public Support Login - Unisys

Storage of Recovery Data
Syntax
CRITICAL.POINT (CP)
The CRITICAL.POINT; command uses a special Critical Point Group Setup Data item or
Global Setup Data item (CP-GROUP-SD) to store the required recovery data.
The CP-GROUP-SD item is named on the Report Options screen in the Critical Point SD
field, and its characteristics are declared in the logic of the Report. CP-GROUP-SD may
have a maximum size of 2,000 characters.
The required recovery data must be stored in the CP-GROUP-SD item prior to each
CRITICAL.POINT; command. Typically, such data consists of running totals being
accumulated in memory, and details that will enable LINC to identify the record to be
processed.
The Extract file activities related to the CRITICAL.POINT; command are shown in the
following table.
File Status Temporary Extract
File
Not open for
output
Permanent Extract
File
No action No action No action
Existing Extract File
Open for output Closed/Reopened Closed/Reopened Closed/Reopened
D DBDDDDDDDDDDDDDDDDDDBDBDDDDDDDDDDDDDBD4
3 33 3
@ D Y@ Y
SLEEP; seconds
The SLEEP; command option causes the Report to be suspended for the number of
seconds (0 to 9999) specified by either the constant or the numeric data item seconds.
Note: Do not confuse this command option with the SLEEP; command, whichisnot
valid in Reports that contain CRITICAL.POINT; commands.
Suspension occurs immediately the CRITICAL.POINT; command is executed, and this
frees access to the LINC database. The Report is activated after the specified time lapse,
and then performs any activity that may have accumulated for it. The Report is also
activated by an explicit WAKE.UP; command.
If the SLEEP; command option is not specified or has a zero time value, the Report will
continue immediately after the end-of-transaction processing is complete.
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