Passing a cluster with array to a dll

Hi,
I'll trying to call GetVersionEX Function from kernel32.dll. (trying to determien OS version)
One of the parameters is OSVERSIONINFOEX with the following definition:
typedef struct _OSVERSIONINFOEX {
DWORD dwOSVersionInfoSize;
DWORD dwMajorVersion;
DWORD dwMinorVersion;
DWORD dwBuildNumber;
DWORD dwPlatformId;
TCHAR szCSDVersion[128];
WORD wServicePackMajor;
WORD wServicePackMinor;
WORD wSuiteMask;
BYTE wProductType;
BYTE wReserved;
} OSVERSIONINFOEX, *POSVERSIONINFOEX, *LPOSVERSIONINFOEX;
I am using the Call Library Function Node in Labview with a parameter defined as Type-> Adapt to Type, and Data Format->Handles by Value. (please correct me if this is incorrect).
I'm trying to define the OSVERSIONINFOEX structure as a cluster but I'm having trouble on how to define the fixed array szCSDVersion[128] so that it is not a pointer. I've tried it as a byte array initialied to 128 elements and string with 128 dummy chars but both end up being pointers.
Attached is my cluster (which doesn't work).
Any help would be greatly appreciated in defining this cluster and ultimately calling the dll function to get the OS version info.
Thanks,
James
Message Edited by James@Prolucid on 02-01-2010 11:29 AM
Solved!
Go to Solution.
Attachments:
OSVERSIONINFOEX.ctl ‏10 KB

Thanks!! That did it.
Here's a simple copy of what I'm using for anyone interested.
Thanks,
James
Attachments:
WinOSVersion.vi ‏31 KB
OSVERSIONINFOEX.ctl ‏12 KB

Similar Messages

How I pass a cluster with array of various data type (double, I32, string)

I have to pass from a VI to a Microsoft Visual C++ DLL, a cluster with some arrays of various data type. The problem is with Double array, that during Visual C debug is incorrect:the dimension is correct passed, but not array data. In the DLL I have inserted the C code genereted by LabVIEW. I tried to pass a cluster of only one array of double, and the results is the same. Then, I tried to pass a cluster with scalar number and the result is correct in only one case. If the double data is the first in the cluster, the result is correct; if the first is another data type, such as integer or boolean, the double data is incorrect during the debug of the DLL.
This is the code of my DLL:
// LabViewP
aram.cpp : Defines the entry point for the DLL application.
#include "stdafx.h"
#include "LabViewParam.h"
#include "extcode.h"
BOOL APIENTRY DllMain( HANDLE hModule,
DWORD ul_reason_for_call,
LPVOID lpReserved
switch (ul_reason_for_call)
case DLL_PROCESS_ATTACH:
case DLL_THREAD_ATTACH:
case DLL_THREAD_DETACH:
case DLL_PROCESS_DETACH:
break;
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typedef struct {
long dimSize;
double elt[1];
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typedef TD2 **TD2Hdl;
typedef struct {
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// This is an example of an exported variable
LABVIEWPARAM_API int nLabViewParamPass=0;
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double parametro;
int i;
for (i=0;i<(**(*pparam).elt1).dimSize;i++)
parametro=(**(*pparam).elt1).elt[i];
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I use LabVIEW 7.0 and Windows XP.
Sorry for my english.
Thanks to every one for your suggestions.
Filippo

> I have to pass from a VI to a Microsoft Visual C++ DLL, a cluster with
> some arrays of various data type. The problem is with Double array,
> that during Visual C debug is incorrect:the dimension is correct
> passed, but not array data. In the DLL I have inserted the C code
> genereted by LabVIEW. I tried to pass a cluster of only one array of
> double, and the results is the same. Then, I tried to pass a cluster
> with scalar number and the result is correct in only one case. If the
> double data is the first in the cluster, the result is correct; if the
> first is another data type, such as integer or boolean, the double
> data is incorrect during the debug of the DLL.
It is hard tell for sure, but you might have alignment problems. The
key symptom
is that you can pass a cluster of big and small fine, but
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Create dll with arrays and call it

I am trying to create dll with labview in order to pass a 2d array to the main program. The problem is that I don't really know how to create the function to call it (I don't know much about pointers)
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Attachments:
Untitled 1.vi ‏7 KB

The code you've provided doesn't do anything (just a control wired to an indicator) so I'm not sure what you're asking here.
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Hi justyou,
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Hi,
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Hi
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Hi
I found some outer Forum entries about this topic.
Look at this links:
http://forums.ni.com/ni/board/message?board.id=170&message.id=49553&requireLogin=False
http://forums.ni.com/ni/board/message?board.id=170&message.id=51526&requireLogin=False
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How can I write a 1d array of cluster with 3 elements to a file?

Hi,
I have to make a "Power spectral densities" analyse from my waveform data. The results from this VI is an array of cluuster with 3 elemments. Now I want to write this array of cluster with 3 elements to a file. And later it must be able to use this file with EXCEL!!
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Hello schloronzo,
make a for loop feeded with your array. Inside the for loop unbundle
the cluster, "format into string" the 3 values, adding the result to
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Kudos are welcome

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If you are already using waveforms you can simply wire right up to "Write Waveforms to File.vi" in the Waveform palette under Waveform File I/O.
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Array to cluster with adjustable cluster size

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Here I have a dynamic 1D array and I need to convert it into cluster. So I use Array to Cluster function. But I notice that the cluster size is a fix value. How can I adjust the cluster size according to the 1D array size?
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Thanks....

I won't disagree with any of the previous posters, but would point out a conversion technique I just recently tried and found to work well for my own particular purposes. I've given the method a pretty good workout and not found any obvious flaws yet, but can't 100% guarantee the behavior in all settings.
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I found I could instead use the "Typecast" primitive to convert the output array back to my cluster. I simply fed the input cluster into the middle terminal to defin! the datatype. Then the output cluster is automatically the right size and right datatype.
This still is NOT an adjustable cluster size, but it had the following benefits:
1. If the size of my typedef'ed cluster changes during development by adding or removing boolean elements, none of the code breaks! I don't have to go searching through my code for all the "Array to Cluster" primitives, identifying the ones I need to inspect, and then manually changing the cluster size on them one at a time!
2. Some of my processing functions were quite similar to one another. This method allowed me to largely reuse code. I merely had to replace the input and output clusters with the appropriate new typedef. Again, no hardcoded cluster sizes hidden in "Array to Cluster" primitives, and no broken code.
Dunno if your situation is similar, but it gave me something similar to auto-sizing at programming time. (You should test the behavior when you feed arrays of the wrong size into the "Typecast" primitive. It worked for my app's needs, but you should make sure it's right for yours.)
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Array of cluster to array of element - or - Cluster of arrays?

Hi all,
I have a large cluster (lets call it C_data) containing measured data e.g. 10 Temperatures, Pressure, (Temp_1, ...).....
All these data are measured once per second. I now collect all data
measured over a certain time in an array of the aforementioned cluster,
that is
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In a text based programming language this could look like the following:
Struct C_data {Temp_1, Temp_2, P_1.....}
ar_C_data is an array of C_data
now I want to do something like:
array_of_Temp_1 = ar_C_data[*].Temp_1
In some programming languages this works but I cannot unbundle_by_name the array of Temp_1 from ar_data in Labview.
Since my cluster is large and may change in structure (for this reason I use a typedef) a generic solution would be the best.
I know that I could: loop over all elements of ar_C_data, unbundle by
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Olaf

You can minimize the overhead of scanning through all elements and extracting if you pre-define the array and use "replace array subset". This avoide having to re-size the array which is costly.
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I don't see a way to do this other than either search through the array and pick the elements you need -or-
keep a copy of the data in a form you can use.
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What might be of interest is to change the "Array" - "Cluster" order and have a single cluster C-Data with arrays of each element required. Might be a bit more difficult to use, it depends on your application.
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Data Logging a programmatically created shared variable of cluster or array datatype into citadel DB

Hi,
Is there a way to log a programmatically created shared variable of cluster or array datatype into citadel DB?
I have attempted to programmatically create a shared variable of type 'double' and was able to successfully log the same into Citadel DB. In the attachment, Please refer to the attached project SV_TC.lvproj and specifically to SV_W.vi for the code that i have used (W.png file shows the dB in MAX and shared variable in NI Distributed System Manager)
However when i tried the same approach to create a shared variable 'array of double', i noticed that traces are not getting created and hence data logging isn't happening into the Citadel DB. I was however able to write and read the shared variable array without issues. The same is true with cluster datatype also. Please refer to SN_NW.vi for the code that i have used - only difference from SV_W.vi is that i have tried to create a shared variable of type 'array of double'
One observation is that if i create an 'array of double' or cluster in a shared variable library using the project explorer and deploy, i could see that these being logged into Citadel DB.
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Regards,
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Attachments:
SV_TC.zip ‏3925 KB

Why is the transaction happening over remote?
Because we need the information to be on our database immediately when they submit it.
I don't know anything about streams or replication.....
The web database is run by the company that hosts our web site. We use PL/SQL to show the pages and output the html. It fetches the data the customer is requesting from our database, but I'm struggling to get the best way to insert into our database from there.

How to set multple values in cluster with local variable?

Hello all,
Ok, I've made my way through Labview for everyone, and have some basic concepts down. I can see with a cluster, if acting directly upon it, you can unbundle, change values, rebundle, etc.
I'm trying something a bit more complex...and just not sure how to get started on this.
I have a drop down menu ring. I have set this up as a typedef, with 4 values. I have used this typedef 7 times, plus some LED bools, in a cluster. I have made this cluster a typedef.
So, in my main vi I"m starting to design, I've set up an example posted here....and in it, I have two instantiations of the cluster typedef, Left Selector and Right Selector.
I have dropped into this vi, a copy of the menu ring typedef (same typedef as in the clusters, same values)....called reset all tubes.
I'm trying now, to figure out how, with an event on the change of value for 'reset all tubes'....that I can start with the left selector, and change all the tubes (these are the menu ring selector) to the same value as what has been selected with the 'reset all tubes' menu ring.
I've created a local variable for the left selector. It is set to read values. (I'll be doing the same with the right one too, but just starting with the left).
In examples I've seen where directly accessing a cluster, you could unbundle the cluster...loop through and change the values...maybe pull out all of the 'tubes' into an array and move through that to update the values. And when you bundle or unbundle the cluster...you can see the values, etc, when you stretch them out on the block diagram.
With the local variable..I can't see to 'stretch' it out like I was expecting..so I can access the values for the 'tubes'...and set them all to the value of the 'reset all tubes' ring menu value.
Can someone put me on the path on the best way to do this....or is there a structure of component I'm missing here ? Am I on the right track to begin with here?
This would seem pretty basic to me, but I'm just missing something here on how to start...
Thank you in advance,
cayenne
Solved!
Go to Solution.
Attachments:
example_select_dropdown.ctl ‏5 KB
public_selector_cluster.ctl ‏6 KB
laptop_test_public.vi ‏12 KB

nathand wrote:
You can't do this with a for loop the way the cluster is structured, but why make it so complicated? Just bundle the new value into the cluster as shown below:
If you do want to use a for loop, consider restructuring your cluster. Group the ring and a boolean into a cluster, then drop 7 of those into the selector cluster. Then you can use "cluster to array" and "array to cluster" since all elements in the outer cluster will be of the same type.
Also, be careful using rings as type definitions. You probably want to use an enumeration instead. The items in a ring do not update when you update the type definition because they're considered to be cosmetic; the items in an enumeration type definition do update, because the items in an enumeration are considered part of the data type.
Oh my goodness!!
What was MUCH easier than I was trying to make it!!
I was attempting to do this reset, in an incremental fashion, as that later, I'm going to need to change values in this cluster by individual elements....and was using this as a way to try to understand how to iterate between cluster elements, and change the values of each one.
This solution works much better for this 'reset' all solution.
One question on this....with regard to the enum vs the ring menu.
I was actually going to go with the enum, however, I could not find a way to make it LOOK like the ring menu...with the arrow to the side that a user would know to click to present the menu list of choices.
I see with the enum, that you can remove the increment/decrement indicator.....and if the user clicks the control, it will indeed pop up a menu of choices...but there is no 'arrow' on that control to indicate to the user that it is a menu choice there.....
Is there a way to make and enum look like a ring with the "drop down menu" control look?
Again, thank you !!
This helps!
C

An abend on NW65SP8 cluster with N65NSS8b

Hello.
We have got an abend on one node of Netware 6.5SP8 cluster with
N65NSS8b. Some one could explain this abend.
Here is cut of abend.log. We could provide more information if it is needed.
Thank in advance.
Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.08
Server NODE2 halted Wednesday, April 28, 2010 10:12:35.677 pm
Abend 1 on P00: Server-5.70.08: Page Fault Processor Exception (Error
code 00000000)
Registers:
CS = 0008 DS = 0010 ES = 0010 FS = 0023 GS = 0023 SS = 0010
EAX = 00000000 EBX = 00000002 ECX = 00000000 EDX = 9CFE17B4
ESI = 93399720 EDI = 00000002 EBP = 9CFE17D8 ESP = 9CFE17CC
EIP = 8F599087 FLAGS = 00010246
8F599087 FF7498F8 PUSH dword ptr [EAX+EBX*4-08]=?
EIP in LOGEVENT.NLM at code start +00002087h
Access Location: 0x00000000
The violation occurred while processing the following instruction:
8F599087 FF7498F8 PUSH dword ptr [EAX+EBX*4-08]
8F59908B 56 PUSH ESI
8F59908C E8A4EEFFFF CALL 8F597F35
8F599091 83C40C ADD ESP, 0000000C
8F599094 85C0 TEST EAX, EAX
8F599096 740D JZ 8F5990A5
8F599098 53 PUSH EBX
8F599099 56 PUSH ESI
8F59909A E8B2EFFFFF CALL 8F598051
8F59909F 85C0 TEST EAX, EAX
Running process: LogEvents Loop Process
Thread Owned by NLM: AUDITNW.NLM
Stack pointer: 9CFE1610
OS Stack limit: 9CFD9A00
Scheduling priority: 67371008
Wait state: 5050190 Blocked on a kernel CV
Stack: --00000002 (LOADER.NLM|KernelAddressSpace+2)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--93399720 ?
--9CFE1944 ?
8F59BCC4 (LOGEVENT.NLM|LogEventExt+9F9)
--93399720 ?
--00000002 (LOADER.NLM|KernelAddressSpace+2)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--9339C3EC ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--000000AD (LOADER.NLM|KernelAddressSpace+AD)
--9339C3F4 ?
--0000028C (LOADER.NLM|KernelAddressSpace+28C)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00001580 (LOADER.NLM|KernelAddressSpace+1580)
--00000005 (LOADER.NLM|KernelAddressSpace+5)
--00000006 (LOADER.NLM|KernelAddressSpace+6)
--0000002C (LOADER.NLM|KernelAddressSpace+2C)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000006 (LOADER.NLM|KernelAddressSpace+6)
--72617453 ?
--6F4C2074 ?
--76652067 ?
--20746E65 ?
--3A726F66 ?
--74654E20 ?
--65726157 ?
--74736E49 ?
--32333120 ?
--30003130 ?
--00000030 (LOADER.NLM|KernelAddressSpace+30)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--956302A0 ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--952C51E0 ?
--FE301020 ?
--97143620 ?
0021CE3F (SERVER.NLM|SchedResumeDisabled+F)
--97143620 ?
--11111111 ?
0020DDCB (SERVER.NLM|kSemaphoreValidate+D7)
--97143620 ?
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--92B7509C ?
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--98A9E7C8 ?
00205FF4 (SERVER.NLM|PerformCallOuts+148)
00205FFC (SERVER.NLM|PerformCallOuts+150)
-97A5EA36 ?
8F59C2F0 (LOGEVENT.NLM|LogEventExt+1025)
--0000038F (LOADER.NLM|KernelAddressSpace+38F)
--9CFE1930 ?
00229F50 (SERVER.NLM|SchedTimerISR+D8)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--000002C9 (LOADER.NLM|KernelAddressSpace+2C9)
--9CFE1944 ?
-0013D020 (LOADER.NLM|interruptVectorPool+0)
-00145E00 (LOADER.NLM|kVirtualInterruptTable0+0)
00110824 (LOADER.NLM|kTimer1Interrupt+28)
--FE00C380 (LOADER.NLM|OSAllocMemory+C380)
0010FE49 (LOADER.NLM|kProcessProtectedModeInterrupt+39)
0010FE51 (LOADER.NLM|kProcessProtectedModeInterrupt+41)
-00145E00 (LOADER.NLM|kVirtualInterruptTable0+0)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
-97A5E51D ?
0010F7AB (LOADER.NLM|kProtectedModeInterruptContinue+65)
--00000023 (LOADER.NLM|KernelAddressSpace+23)
--00000023 (LOADER.NLM|KernelAddressSpace+23)
--00000023 (LOADER.NLM|KernelAddressSpace+23)
936BE44F (AUDITNW.NLM|(Code Start)+344F)
--00000000 (LOADER.NLM|KernelAddressSpace+0)
--9CFE1944 ?
--00000001 (LOADER.NLM|KernelAddressSpace+1)
--93399720 ?
--0000028C (LOADER.NLM|KernelAddressSpace+28C)
--938E9001 ?
8F59C2F0 (LOGEVENT.NLM|LogEventExt+1025)
--00000008 (LOADER.NLM|KernelAddressSpace+8)
936BE44F (AUDITNW.NLM|(Code Start)+344F)
--938F9380 ?
--8F7C74E0 ?
--9CFE19A0 ?
936BE51A (AUDITNW.NLM|(Code Start)+351A)
--93399720 ?
-936C3084 (AUDITNW.NLM|(Data Start)+1084)
--000A0006 ?
--00000007 (LOADER.NLM|KernelAddressSpace+7)
Additional Information:
The CPU encountered a problem executing code in LOGEVENT.NLM.
The problem may be in that module or in data passed to that module by a
process owned by AUDITNW.NLM.

03.05.2010 15:40, Rodion пишет:
> 03.05.2010 2:16, ataubman wrote:
>>
>
>> Just to confirm that we're
>> on the same page: 'Novell Login'
>> (http://download.novell.com/protected...d=feuRIrrVHBQ~)
>> contains newer versions of both the above modules.
>>
>>
>
> We will try newer version of Novell Audit platform agent 2.0.2 FP7 and
> inform you about results.
>
We have updated audit agents to version 2.0.2 FP7 on two nodes of the NW
cluster and NW servers. Also we disable file close event of audit agents
on nodes of the NW cluster.
We noticed some messages, which were appearing on Logger Screen, when
backup job worked with huge amount network traffic. Messages like these:
Novell Audit Platform Agent: Failing primary connection for application
NetWareInst.
Novell Audit Platform Agent: Ack Not received - Going to end the
connection
Novell Audit Platform Agent: Failing primary connection for application
NetWareInst.
Novell Audit Platform Agent: ACK Failure for File
Novell Audit Platform Agent: Server reports logging protocol version: 4
Novell Audit Platform Agent: NetWareInst connecting to Log Server via
CLEAR TEXT
Novell Audit Platform Agent: Authentication Successful
Novell Audit Platform Agent: Switching application NetWareInst to
failover log server, 192.168.175.71.
Novell Audit Platform Agent: Failing failover connection for application
NetWareInst.
Novell Audit Platform Agent: Ack Not received - Going to end the
connection
Novell Audit Platform Agent: Failing failover connection for application
NetWareInst.
Novell Audit Platform Agent: ACK Failure for File
Novell Audit Platform Agent: Switching application NetWareInst from
failover log server to cache.
Novell Audit Platform Agent: This is from EndClientConnection
Novell Audit Platform Agent: LCache could not process event for the
application NetWareInst. Reconnecting LCache Again.
Novell Audit Platform Agent: Ack Not received - Going to end the
connection
Novell Audit Platform Agent: This is from EndClientConnection
Novell Audit Platform Agent: LCache could not process event for the
application NetWareInst. Reconnecting LCache Again.
Novell Audit Platform Agent: ACK Failure for File
Novell Audit Platform Agent: LCache could not process, Going to
restart/connect again
Novell Audit Cache: Removed application NetWareInst cache file
sys:/etc/logcache/lc934755c293b98b926e915cb0890823dd.
Novell Audit Cache: Removed application NetWareInst cache file
sys:/etc/logcache/lc934755c293b98b926e915cb0890823dd.
Novell Audit Cache: Removed application NetWareInst cache file
sys:/etc/logcache/lc934755c293b98b926e915cb0890823dd.
Novell Audit Cache: Removed application NetWareInst cache file
sys:/etc/logcache/lc934755c293b98b926e915cb0890823dd.
Novell Audit Platform Agent: ain.
Novell Audit Platform Agent: Server reports logging protocol version: 4
Novell Audit Platform Agent: NetWareInst connecting to Log Server via
CLEAR TEXT
Novell Audit Platform Agent: Authentication Successful
Novell Audit Platform Agent: NetWareInst.
Novell Audit Cache: Removed application NetWareInst cache file
sys:/etc/logcache/lc934755c293b98b926e915cb0890823dd
In other words NW Audit agent lost connection to Audit server.
There were several anends on NW server that was not a node of cluster
when audit agent was trying to reconnect to Audit server.
Novell Open Enterprise Server, NetWare 6.5
PVER: 6.50.08
Server MAIN1 halted Friday, May 7, 2010 5:03:36.526 am
Abend 1 on P00: Server-5.70.08: Page Fault Processor Exception (Error
code 00000000)
Registers:
CS = 0008 DS = 0023 ES = 0023 FS = 0023 GS = 0023 SS = 0010
EAX = 00000000 EBX = 00000002 ECX = 00000000 EDX = AEB9E1A4
ESI = 90216260 EDI = 9D33A0E2 EBP = AEB9E1C8 ESP = AEB9E1BC
EIP = 9D33A0B0 FLAGS = 00010246
9D33A0B0 FF7498F8 PUSH dword ptr [EAX+EBX*4-08]=?
EIP in LOGEVENT.NLM at code start +000020B0h
Access Location: 0x00000000
The violation occurred while processing the following instruction:
9D33A0B0 FF7498F8 PUSH dword ptr [EAX+EBX*4-08]
9D33A0B4 56 PUSH ESI
9D33A0B5 E8A3EEFFFF CALL 9D338F5D
9D33A0BA 83C40C ADD ESP, 0000000C
9D33A0BD 85C0 TEST EAX, EAX
9D33A0BF 740D JZ 9D33A0CE
9D33A0C1 53 PUSH EBX
9D33A0C2 56 PUSH ESI
9D33A0C3 E8B1EFFFFF CALL 9D339079
9D33A0C8 85C0 TEST EAX, EAX
Running process: ReconnectToServer Thread Process
Thread Owned by NLM: LOGEVENT.NLM
Stack pointer: AEB9DBBC
OS Stack limit: AEB8E240
Scheduling priority: 67371008
Wait state: 5050190 Blocked on a kernel CV
Stack: --00000002 (LOADER.NLM|KernelAddressSpace+2)
--00000002 (LOADER.NLM|KernelAddressSpace+2)
Additional Information:
The CPU encountered a problem executing code in LOGEVENT.NLM. The
problem may be in that module or in data passed to that module by a
process owned by LOGEVENT.NLM.
Thanks for time and help.

Passing a cluster with array to a dll

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