Spooler Programmer's Guide

Using the Spooler Interface Procedures
Spooler Programmer’s Guide—522287-002
2-22
Spooling—Levels 1 and 2
! getline --this procedure returns a line of data for spooling.
! It is an INT procedure that returns a zero (FALSE) value when
! it has no data to spool. It has two parameters: line and
! length. line is a reference to a 40-word (80-byte) array.
! The array is filled with the line of data to be spooled.
! length is a reference to an INT that is set to the number of
! bytes to be written from line.
! root --this is the main procedure. It performs all the file
! management to the collector and calls the other procedures in
! the program as needed.
?nolist
INT counter := 0;
?SOURCE $SYSTEM.SYSTEM.EXTDECS(OPEN, CLOSE, WRITE, STOP,
? SPOOLSTART, CHECKOPEN, CHECKPOINT)
PROC cherror (george);
INT george;
BEGIN
CALL STOP;
END;
PROC stbackup;
BEGIN
counter := counter;
END;
PROC error;
BEGIN
CALL STOP;
END;
PROC sperror (errnum);
INT errnum;
BEGIN
CALL STOP;
END;
INT PROC getline( line, length);
INT .line,
.length;
BEGIN
int temp, done;
temp :=0;
temp := counter.<13:15> ;
temp := temp * 5;
line [0] ':=' " ";
line [1] ':=' line[0] for 39;
line [temp] ':=' "0123456789";
length := 80;
Example 2-6. Annotated Example of Level-2 Spooling From a NonStop Process
Pair With a Nonzero Sync Depth
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