Subversion Repositories openrisc

#include <jni.h>

#include "martin.h"

#include <stdio.h>

JNIEXPORT void JNICALL

Java_martin_myNative(JNIEnv* env, jobject this, jstring s)

{

  jclass cls;

  jfieldID fid;

  jobject obj;

  jmethodID mid;

  printf("From C\n");

  fflush(stdout);

  cls = (*env)->FindClass(env, "java/lang/System");

  if (cls == 0) {

    printf("java/lang/System lookup failed\n");

    return;

  }

  fid = (*env)->GetStaticFieldID(env, cls, "out", "Ljava/io/PrintStream;");

  if (fid == 0) {

    printf("java/lang/System::out lookup failed\n");

    return;

  }

  obj = (*env)->GetStaticObjectField(env, cls, fid);

  if (obj == 0) {

    printf("GetStaticObjectField call failed\n");

    return;

  }

  cls = (*env)->GetObjectClass(env, obj);

  if (cls == 0) {

    printf("GetObjectClass(out) failed\n");

    return;

  }

  mid = (*env)->GetMethodID(env, cls, "println", "(Ljava/lang/String;)V");

  if (mid == 0) {

    printf("println method lookup failed\n");

    return;

  }

  (*env)->CallVoidMethod(env, obj, mid, s);

}