Spooler Programmer's Guide

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Using the Spooler Interface Procedures

Spooler Programmer’s Guide—522287-002

2-23

Spooling—Levels 1 and 2

IF counter > 120 THEN done := 0 ELSE done := 1;

counter := counter + 1;

RETURN done;

END;

?list

PROC root MAIN;

BEGIN

! Declarations

INT collector [0:11] := "$S #LP3 LP3 ",

! contains the collector and location name in

! internal format

collectnum,

! contains the collector's file number returned from OPEN

flags := %B0100100000000000,

! contains the bit pattern for the flags parameter to OPEN

! and CHECKOPEN

location [0:7] := "#LPRMT3 ",

! contains the job's new location

line [0:39],

! contains the line of data to spool

length,

! contains the number of bytes to write from line

chcount := 0,

! contains the number of uncheckpointed writes pending

err,

! contains the CHECKOPEN back error or the CHECKPOINT

! status word

sperrnum;

! receives SPOOLSTART error code

! Open file to collector

! flags

! receive messages on

! access mode write only

! open process nowait off

! exclusion mode shared

! wait/nowait wait

! sync depth 5

CALL OPEN( collector, collectnum, flags, 5);

! Check for errors

IF <> THEN CALL error;

! CHECKOPEN the successful open to the collector

CALL CHECKOPEN(collector,collectnum, flags, 5,,, err);

! Check for a CHECKOPEN error

IF <> THEN CALL cherror(err);

Example 2-6. Annotated Example of Level-2 Spooling From a NonStop Process

Pair With a Nonzero Sync Depth

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