On Mon, 3 Jun 2002, jean-frederic clere wrote: > > BTW, I'll need more informations on how to use > > JNI use stuff in apache 1.3 and 2.0. > > > > We'll have also to comment the fact that at least > > under Linux there is need to update by hand LD_LIBRARY_PATH > > to have jni shared libs loaded ....
We can add it in the tomcat.sh script. It's a bit tricky since the PATH depends on VM, but we can include more ( JAVA_HOME/jre/lib/`arch`/classic, ... ) to be sure. Note that JNI doesn't work with 1.3 ( or it doesn't make sense, even if it works ) - 1.3 is single threaded. I also expect JNI to be more used for out-of-process connections and operations ( unix socket, signals, chuid, shmem ), from the java process. In this case you only need libapr.so and libjkjni.so in the LD_LIBRARY_PATH ( i.e. easier to put in the script ). Regarding 'how to use' - I'll write some more docs. Workers2.properties is where you have to configure it. Also - I don't consider JNI worker one of the 'supported' features, there are still many things to tests and is too tricky. I think the socket remains the 'default' and what we should support for most users. > Will it work to load them before? I am thinking of adding some dlopen in the > jakarta-commons-sandbox/daemon to load native libraries. (jsvc is what I use to > start the TC). I don't know. Depends on Java, that's where things go bad. In theory you shouldn't need to set LD_LIBRARY_PATH, but it's extremely unconsistent. If you find that adding dlopen solves the problem for jni worker, it would be better to add it to jk_vm.c - since tomcat is started by the apache process, you can't start it with jsvc ( or I don't know how you would do it ). If you want to use the libjkjni without setting LD_LIBRARY_PATH, you could also do it in the jk_jni code ( for example a small loader function ). You can already specify the full path to libjkjni.so, and if libapr.so is installed in the same dir it'll work. Costin -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
