Fw: [rtl] RTLinux and Java

Subject: Fw: [rtl] RTLinux and Java
From: "Till Franitza" <xfa-at-isw.uni-stuttgart.de>
Date: Mon, 28 Aug 2000 08:03:46 +0200


-----Ursprüngliche Nachricht-----
Von: Robert Reid <robreid-at-INAME.COM>
An: rtl-at-rtlinux.org <rtl-at-rtlinux.org>
Datum: Sonntag, 27. August 2000 12:15
Betreff: [rtl] RTLinux and Java


>Dear forum,
>
>We are working on a set of Java Native Interface hooks to allow java
>programs to have access to shared memory and realtime FIFO's to allow
>communication between RTLinux space and a Java VM.
>
>We have currently implemented code that allows java to read and write to
>a integer held in shared memory.  The code to do this and some sample
>java code is attached.
>
>This could allow people to create networked / graphical front ends to
>RTLinux programs very easily.  For many high level, non realtime tasks
>the java environment provides the easiest and quickest development
>environment.
>
>We are interested to find out if there is any interest / demand for this
>code as it could easily be written to allow access to all type of
>RTLinux / Linux communications paths.  We would also appreciate any
>comments regarding to the structure of the code and improvements that
>could be made.
>
>The files are as follows:
>RTL_SharedMemInt.java - Java library for accessing shared memory
>integers
>RTL_SharedMemInt.h - Header file for implementing Java Native Calls
>RTL_SharedMemInt.c - Header file for implementing Java Native Calls, to
>be compiled to libRTL_SharedMemInt.so
>realtime_module.c - A test realtime module
>SharedMemTest.java - A terminal based java test program
>SharedMemApplet.java - A applet based java test program
>Makefile - makefile for compiling RTL_SharedMemInt.c (check library
>locations to suit your machine for realtime and java paths)
>
>The sample program creates a thread that increments an int variable
>every second (realtime) and the value of this variable is accessed from
>java space.
>
>
>Kelvin Proctor & Robert Reid
>University of NSW
>Sydney, Australia
>


begin 666 Makefile.txt
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`
end

begin 666 RTL_SharedMemInt.c
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`
end

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`
end

begin 666 RTL_SharedMemInt.java
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`
end

begin 666 ShareMemTest.java
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`
end

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`
end

begin 666 ShareMemApplet.java
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end
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