How to display current system state, How to display buffers in use – Gasboy CFN III Manager Manual V3.6 User Manual
Page 247
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