hi,
Is there a way to use a native JNI method as the run method of a
Thread object?
The following example works with the Sun JDK but it won't work with
kaffe. If I use kaffe in the example below, the start method of the
Thread object will never return.
Test.java:
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
class Test extends Thread
{
public native void run ();
static
{
try
{
System.loadLibrary ("test");
}
catch (Exception e)
{
System.err.println ("System.loadLibrary (): " + e);
System.exit (1);
}
}
}
class Main
{
public static void main (String args[])
{
Test test = new Test ();
test.start ();
System.out.println ("## ok");
try
{
while (true)
{
System.out.println ("main");
Thread.sleep (1000);
}
}
catch (Exception e)
{
System.err.println (e);
System.exit (1);
}
}
}
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
test_jni.c:
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <jni.h>
#include "Test.h"
JNIEXPORT void JNICALL Java_Test_run (JNIEnv *env, jobject object)
{
for (;;)
{
printf ("run\n");
sleep (2);
}
}
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
This is how I build the example with kaffe:
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
zero:~$ export PATH=~/kaffe-cvs/bin:$PATH
zero:~$ export CLASSPATH=.:~/kaffe-cvs/lib/Klasses.jar
zero:~$ javac Test.java
zero:~$ kaffeh -jni Test
zero:~$ gcc -Wall -I$HOME/kaffe-cvs/include/ \
-I$HOME/kaffe-cvs/include/kaffe/ \
-c test_jni.c
zero:~$ gcc -shared -Wl,-soname,libtest.so -o libtest.so test_jni.o
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
kaffe produces the following output:
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
zero:~$ export LD_LIBRARY_PATH=.
zero:~$ kaffe Main
run
run
run
run
run
run
^C
zero:~$
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
Sun JDK 1.3.1/1.4.0:
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
zero:~$ export LD_LIBRARY_PATH=.
zero:~$ java Main
## ok
run
main
main
run
main
main
run
main
main
run
^C
zero:~$
-=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-= -=-=
--
_______________________________________________
kaffe mailing list
[EMAIL PROTECTED]
http://kaffe.org/cgi-bin/mailman/listinfo/kaffe
