Re: Suspending and resuming JNI thread

Gordon Beaton <>
30 Nov 2006 13:36:53 GMT
On 30 Nov 2006 05:01:10 -0800, wrote:

Please explain me .. how i have to change the code inorder to make
working of suspend, resume and stop with ur code...

Create an instance of the Suspend class I posted earlier. Pass the
reference as an argument to your C function (you'll need to change the
native declaration and re-run javah).

Now change your C function, so that it occasionally invokes

  JNIEXPORT void JNICALL Java_Mynative_Cfun(JNIEnv *env1, jobject objj, jobject susp)
    jclass cls = (*env)->GetObjectClass(env1, susp);
    jmethodID mid = (*env)->GetMethodID(env1, cls, "wait_here", "()Z");

    while (!(*env)->CallBooleanMethod(env1, susp, mid)) {
      printf("C code...\n");


From elsewhere, call susp.suspend(), susp.resume(), or susp.cancel()
to control the native method.


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