Solved

Tuxedo client memory allocation

Posted on 2006-06-29
3
308 Views
Last Modified: 2013-12-10
Hi,

We are calling EJB from VC++ client through tuxedo call (tpcall).
Client (VC++ 6.0)/Windows Tuxedo Client ----> Tuxedo Domain/Gateway/Broker (V 8.0) ----> Weblogic domain (8.1 SP5) ----> EJB (running in different application server).

We are having the following problem:

From the VC++ client we are calling a EJB which will return a search result. We don't know the number of results (i.e. size) that will be returned to the client. The prblem is we are allocating the output buffer (tpalloc) in the client to hold the result that will be returned by the EJB before calling the service.  So we are not able to display the results if it exceeds the the size of output buffer.

Can anyone let me know what to do in this situation so that we will be able to display the whole result always.

Thanks
0
Comment
Question by:pbsmbc
  • 2
3 Comments
 
LVL 3

Accepted Solution

by:
yuseungkim earned 500 total points
ID: 17011235
What is buffer type you're using ?

did you try to check the size of olen from tpcall and compare it with initial size allocated and if olen is bigger than what initially allocated by tpalloc, try to resize it using tprealloc ?

int tpcall(char *svc, char *idata, long ilen, char **odata, long *olen, long flags)

As you know, odata is the address of a pointer to the buffer where a reply is read into, and olen points to the length of that reply. *odata must point to a buffer originally allocated by tpalloc(). If the same buffer is to be used for both sending and receiving, odata should be set to the address of idata. FML and FML32 buffers often assume a minimum size of 4096 bytes; if the reply is larger than 4096, the size of the buffer is increased to a size large enough to accommodate the data being returned.

Cheers

Andy K

0
 

Author Comment

by:pbsmbc
ID: 17011441
Thanks Andy.
We are using FML32 buffer and we not using same buffer for sending and receiving the request.


0
 
LVL 3

Expert Comment

by:yuseungkim
ID: 17012461
Did you try to resize it based on olen using tprealloc ?
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Verbose logging is used to diagnose garbage collector problems. By default, -verbose:gc output is written to either native_stderr.log or native_stdout.log.   It is also possible to redirect the logs to a user-specified file. This article will de…
This article is about some of the basic and important steps to be used to improve the performance in web-sphere commerce application development. 1) Always leverage the Dyna-caching facility provided by the product 2) Remove the unwanted code …
This Micro Tutorial will teach you how to censor certain areas of your screen. The example in this video will show a little boy's face being blurred. This will be demonstrated using Adobe Premiere Pro CS6.
Microsoft Active Directory, the widely used IT infrastructure, is known for its high risk of credential theft. The best way to test your Active Directory’s vulnerabilities to pass-the-ticket, pass-the-hash, privilege escalation, and malware attacks …

803 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question