[tcljava-user] Java error when using Tcl Blend

[Jerry S. <je...@vs...>]

After I switched to Tcl Blend, I could run tcl script successfully from my
Java program.

However, after the executing tcl script, this error message pops up:

 

Title of the window:  java.exe - Application Error

The instruction at "0x6D801115" referenced memory at "0x00000144". The
memory could not be written.

Click on OK to terminate the program.

 

Does anybody have idea why I have this error ?

 

Thanks.

 

 

From: Patrick Finnegan [mailto:fin...@gm...] 
Sent: Wednesday, September 09, 2009 4:11 PM
To: tcl...@li...
Cc: Jerry Sugiarto
Subject: Re: [tcljava-user] Loading native tcl Library

 

On Wednesday 09 September 2009 19:54:32 Jerry Sugiarto wrote:

> I found this email thread, and wonder if this is still true with Jacl

> 1.4.1.

> 

> I could run the tcl script from Jacl shell, however I can't do that from

> 

> my Java program. It will cause exception when this command is encounter:

> 

> load abc.dll struct

> 

> 

> 

> Does this mean I have to switch to Tcl Blend ?

> 

> Thanks.

> 

> 

> 

> 

> 

> Hi,

> 

> > I have a tcl script that performs the following statement:

> >

> > load tclx83.dll Tclx

> >

> >

> >

> > When I run my tcl script, using tcl84 shell, the tcl script works fine.

> >

> >

> >

> > I want to use jacl to run my tcl script from my java application.

> 

> You can't load native Tcl libs into a Jacl application. If you

> 

> want to do that, you will need to use Tcl Blend not Jacl.

> 

> Tcl Blend 1.3 supports loading both Tcl and Tcl Blend into

> 

> an existing JVM.

> 

> 

> 

> Mo DeJong

> 

> Red Hat Inc

> 

> 

> 

> 

> 

> Jerry Sugiarto

> 

> QA Engineer

> 

> VSS Monitoring, Inc.

> 

> 38 Adrian Court

> 

> Burlingame, CA 94010

> 

> 

> 

> + 1.650.697.8770 t

> 

> + 1.650.697.8779 f

> 

> 

> 

> http://www.vssmonitoring.com l Silicon Valley, USA l Tokyo, Japan l

> Beijing, China

> 

> V SS Monitoring's Distributed Traffic Capture SystemsT fundamentally

> improve price-performance and network analyzer efficiency, as well as

> increase network visibility and reduce response times. Only VSS Monitoring

> offers a single vendor total traffic capture solution, encompassing small

> deployments requiring basic network taps, through large, complex

> deployments with multiple monitoring solutions that become highly
leveraged

> through its unique distributed systems.

The answer is yes. 

Jacl is written in Java.

TclBlend is written in C.

A java runtime will not execute C dlls natively. The Java runtime needs to
load a C runtime(TclBlend) which can then call a C dll.