jni_rs/java_src/me/ehlxr/HelloWorld.java

52 lines
1.7 KiB
Java

package me.ehlxr;
class HelloWorld {
private static native String hello(String input);
private static native byte[] helloByte(byte[] input);
private static native void factAndCallMeBack(int n, HelloWorld callback);
private static native long counterNew(HelloWorld callback);
private static native void counterIncrement(long counter_ptr);
private static native void counterDestroy(long counter_ptr);
private static native void asyncComputation(HelloWorld callback);
static {
// Linux: export LD_LIBRARY_PATH=/Users/ehlxr/Desktop/jni_rs/mylib/target/debug
// Mac: export JAVA_LIBRARY_PATH=/Users/ehlxr/Desktop/jni_rs/mylib/target/debug
System.loadLibrary("mylib");
}
public static void main(String[] args) {
String output = HelloWorld.hello("Java");
System.out.println(output);
byte[] outputByte = HelloWorld.helloByte("byte".getBytes());
System.out.println(outputByte);
HelloWorld.factAndCallMeBack(6, new HelloWorld());
long counter_ptr = counterNew(new HelloWorld());
for (int i = 0; i < 5; i++) {
counterIncrement(counter_ptr);
}
counterDestroy(counter_ptr);
System.out.println("Invoking asyncComputation (thread id = " + Thread.currentThread().getId() + ")");
asyncComputation(new HelloWorld());
}
public void factCallback(int res) {
System.out.println("factCallback: res = " + res);
}
public void counterCallback(int count) {
System.out.println("counterCallback: count = " + count);
}
public void asyncCallback(int progress) {
System.out.println("asyncCallback: thread id = " + Thread.currentThread().getId() + ", progress = " + progress + "%");
}
}