mixing java & C on Linux

[Drazen Gemic]

I am able to call some C code from Java via JNI.

Is it possible to compile Java with gcj and call the same
C code directly ? What needs to be done ?

DG

 

[puzzlecracker]

I am able to call some C code from Java via JNI.

Is it possible to compile Java with gcj and call the same
C code directly ? What needs to be done ?

DG

sure...

 

[Roedy Green]

Is it possible to compile Java with gcj and call the same
C code directly ? What needs to be done ?

I don't think so. The JNI interface would remain the same. It is not
as though native compilation works by turning Java into C first.
You could do a quick experiment to see if GCJ in expecting a JNI
interface for native methods. There are several native classes
available to download on my website.

I suggest
http://mindprod.com/products1.html#PENTIUM
http://mindprod.com/products1.html#FILETIMES
http://mindprod.com/products1.html#MOUSE

http://mindprod.com/products1.html#SETCLOCK is probably a bit too
complicated.

 

[Roedy Green]

http://mindprod.com/products1.html#PENTIUM

this one would be easiest to port to Linux. It does no system calls.

 

[David N. Welton]

I am able to call some C code from Java via JNI.

Is it possible to compile Java with gcj and call the same
C code directly ? What needs to be done ?

If you are only interested in targeting gcj, you might also look at CNI:

http://gcc.gnu.org/onlinedocs/gcj/About-CNI.html

Ciao,
--
David N. Welton
- http://www.dedasys.com/davidw/

Linux, Open Source Consulting
- http://www.dedasys.com/