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How to display current system state, How to display buffers in use – Gasboy CFN III Manager Manual V3.6 User Manual

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MDE-4871 CFN III Manager’s Manual for Windows® XP Embedded - Version 3.6 · August 2010

Page 25-7

System Status

Diagnostic Commands

How to Display Current System State

The disk-based program WOW displays the current state and history of the system. It must
be run from a CRT terminal. To quit the program, press any character key.

The command WOW -h displays only the current state.

How to Display Buffers in Use

On a CRT display, the disk-based command BUFFERS shows a continually updated display
of buffer usage by type. On a printer, the command prints only the buffers currently in use.

Free = 90 TIPs = 40 Poll = 5
02 #######
04 #######

BUFFERS shows how many of each type of buffer are in use. This command may help spot
Malloc: out of buffers errors (Malloc stands for memory allocator). Use ^C to terminate the
command.

An example of the BUFFERS display is shown. It shows the number of free buffers (Free),
the number of transaction-in-progress (TIP) buffers in use, and the number of polling buffers
in use (Poll). Buffers in use are represented as pound signs (#) next to the type, in
hexadecimal, of the buffer. Pound signs appear and disappear as buffers change type.

The table below shows the types of buffers available.

Buffer Type

Code

Description

01

SITE_POLL

messages to host and loops

02

SCRATCH

temporary scratch buffer

03

WHEN

sent when time limit expires

04

TTY_BUF

tty input buffer

05

COMMAND

command from SCIII to loop device

06

RQST_DATA

data requested from device

07

TIP

transaction in progress buffer

09

LOG_MESS

message to be logged

0A

HOST_AUTH

host authorization message

0B

HOST_ABORT

host abortion message

0C

HOST_COMP

host completion message

0D

COMP_TRANS

completed transaction

0E

LOG_FILE

log this file

0F

PUMP_MESS

command to/from pump driver

10

KEY_REQ

key management request

11

TRANS_COMP

different completed transaction

12

HOST_UP

host is now up

13

ENABLE

tells driver to startup devices

14

LIFE_AND_DEATH

tells driver device came up/down

15

DISABLE

tells driver to kill a device

16

ABORT_TRANS

message to abort a transaction

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