Re: Client failed to connect to local server on VxWorks and Pharlap

[Andrew Johnson <anj@aps.anl.gov>]

Hi,

On Thursday 21 October 2010 23:35:04 lorna.zhang@ni.com wrote:
>
> I wrote an EPICS Server and an EPICS Client based on EPICS Base. They work
> well on Windows platform. Now I'm porting them to VxWorks and Pharlap.

Please confirm that you are using the Channel Access Client (libca) and Server 
(libcas) libraries provided with EPICS Base.

Which version of EPICS Base are you using?

What were the EPICS target architecture names for all three builds?

We don't currently support Pharlap in Base, so I assume you added your own 
build configuration files for this target.  Does it pass all of the test 
programs found in src/libCom/test and built in src/libCom/test/O.<arch>?

Please also run the libCom test programs on your vxWorks target and confirm 
that they all pass.  You do that by loading the vxTestHarness.munch file into 
a clean vxWorks system (with no other applications running), cd to a directory 
that vxWorks can create a file in if possible, then execute the command 
'epicsRunLibComTests'.  If the vxWorks system can't create a file it will fail 
and skip a few tests in epicsStdioTest, but that's benign.

> During porting, I found the issue that, if the client and server are on a
> single host (no matter VxWorks or Pharlap), the connection couldn't be
> established.

Have you tried running the client on the same platform but a different host to 
the server?

How are you running both the client and server on the same vxWorks host â do 
you have them linked into a single .munch file that you are loading?

> At the time the issue happens, I can create a client on a different
> platform to successfully connect to/communicate with the issuing server, I
> can also point the issuing client to connect to/communicate with another
> server on a different platform.
>
> Do you have any clue what the issue might be?

Not yet, but the information I've asked for above might allow us to help you.

- Andrew

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