below is my original post, culled from the list archive,
http://www.indexinfocus.com/.
Until the manual is updated, I hope this documentation is good enough.
-----Original Message-----
From: HENDERSON MIKE, MR
Kevin,
System(1009)
But the data is very strangely formatted, someone contributed a
subroutine to display it nicely, see the list archives
Mike
--------------------------
Subject: [UV] SYSTEM(9001) tells you what program you are in & where you
came from!
From: Stevenson, Charles ([EMAIL PROTECTED])
Date: 03/20/03
After whining about this for, lo, these many years let me be quick to
praise the Universe team for giving us this. This will be a wonderful
debugging tool!
UV 10.0.6 Patchlist says:
2621 The UniVerse BASIC SYSTEM(9001) function now returns the
@LEVEL in correct order, and returns correct addresses.
SYSTEM(9001) will return a dynamic array that contains roughly the same
info that PORT.STATUS LAYER.STACK or RAID "T" command coughs up.
Here is a sample subroutine that displays the data and a dummy program
that calls it.
Then from the menu, I get to pseudo-TCL and execute the dummy program.
>CT CDS.BP SYS9001 DUMMY
SYS9001
0001 SUBROUTINE SYS9001
0002 CRT "Depth Executing.......................... Address"
0003 S = SYSTEM(9001)
0004 FOR A = 1 TO COUNT( S, @AM )
0005 CRT S<A,1> "4R##: ": S<A,2> "40L#40": S<A,3>
0006 NEXT A
0007 CRT QUOTE( S )
0008 RETURN
DUMMY
0001 CALL SYS9001
>ED VOC LIST
8 lines long.
----: XEQ RUN CDS.BP DUMMY
Executing the command "RUN CDS.BP DUMMY".
Depth Executing.......................... Address
3: CDS.BP.O/SYS9001 0x6
2: CDS.BP.O/DUMMY 0x0
1: /dbms/uv/catdir/*UVPRINTMSG 0x4b40
0: /dbms/uv/catdir/-MATBLOCK 0x0
-1: /dbms/uv/catdir/-PERMISSIONS 0x0
-2: /dbms/uv/catdir/-GET.FILE.NAME 0x0
-3: /dbms/uv/BP.O/ED.B 0x0
"3}CDS.BP.O/SYS9001}0x6~2}CDS.BP.O/DUMMY}0x0~1}/dbms/uv/catdir/*UVPRINTM
SG}0x4b40~0}/dbms/uv/catdir/-MATBLOCK}0x0~-1}/dbms/uv/catdir/-PERMISSION
S}0x0~-2}/dbms/uv/catdir/-GET.FILE.NAME}0x0~-3}/dbms/uv/BP.O/ED.B}0x0~"
One caution: the data is turned 90 degrees from the conventional way MV
data is handled (?what were they thinking?)
- Value 1 of each attribute is the depth in the return stack,
The non-negative numbers mean that those programs are all part
of the return stack.
The negative numbers below simply mean those subroutines were
called and returned from in the past.
I don't think @LEVEL has anything to do with it,
contrary to the patchlist text.
That's as much as I've figured out so far.
- Value 2 is the program
- Value 3 is the hex address (the obj address you see when you VLIST a
program)
For the negative depths, n/a.
(0x0 on DUMMY is real. They are small programs.)
- The number of values is constant,
the number of attributes grows or shrinks. Oh well.
SYSTEM(9001) is not in the 10.0 doc set that came with my upgrade pack
from IBM, so I figured after all the complaining I have done I at least
owe this post.
Thank-you LeRoy & company,
Charles Stevenson
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