Spooler Programmer's Guide

Sample Print Process
Spooler Programmer’s Guide—522287-002
A-13
error)
ELSE
CALL tell^super (end^job, device, error);
RETURN;
END;
! *===================================================================*
PROC init^job;
BEGIN
!---Beginning of code--------------------------------------------------
data^file^fnum := 0;
busy^flag := 0;
suspend := 0;
suspended := 0;
msg^type := 0;
successful^op := 0;
end^of^job^flag := 0;
header^index := 0;
END;
! *===================================================================*
! CONTROL NUMBER = 0: OPEN DEVICE
!- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
! procedure name: OPEN^DEV
! parameters: DEVICE - name of device to be opened
! description: This procedure services the spooler supervisor command
! to open a device (exclusive and nowaited). If the open
! is unsuccessful, a PRINTSTATUS message, type 3 (unable
! to open device), will be sent to the spooler supervisor.
!- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
PROC open^dev (device);
INT .device;
BEGIN
INT exclusive^and^nowait := %21,
error;
!---Beginning of code--------------------------------------------------
error := openfile (device, dev^fnum, exclusive^and^nowait);
IF error THEN
BEGIN
CALL tell^super (cant^open^device, device, device^file^error +
error);
END;
RETURN;
END;
! *===================================================================*
! CONTROL NUMBER = 1: CLOSE DEVICE
!- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
! procedure name: CLOSE^DEV
! parameters: DEVICE - name of device to be closed
! description: This procedure services the spooler supervisor command
! to close a device. If device is currently printing a
! job, the spooler supervisor is notified that the close
! command is invalid.
!- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -