void server_getInfo_callback	(	jobject *	_aDataEncoder,
		void **	address,
		int *	size
	)

Definition at line 1232 of file dim_jni.c.

References DBGx, dim_Dbg_SERVICE_CALLBACK, dim_jni_attachThread(), Java_dim_Server_getClientConnID(), NativeDataEncoder_encodeNativeData, NativeDataMemory_dataAddress, NativeDataMemory_dataSize, and theJavaVM.

Referenced by Java_dim_Server_addService().

{
  /* server_getInfo_callback is invoked when dim needs the data for a service.
   * The data is obtained by calling the encodeData method of the DataEncoder
   * interface which returns us a Memory object. Next we extract the data address
   * and size from the returned Memory object.
   */
  /* Note, the DataEncoder can obtain the identity of the client by calling
   * getClient or getClientConnID */

  /* thou shall not not use volatile storage to return info to dim */
        jobject dataEncoder = *_dataEncoder;
        jobject theMemory;
        JNIEnv* env;
        int doit;

//      DBGe(dim_Dbg_SERVICE_CALLBACK) ; /* no report, only trap */

        doit = dim_jni_attachThread(&env);
//      (*theJavaVM)->AttachCurrentThread(theJavaVM, (void *)&env, NULL);

        theMemory = (*env)->CallObjectMethod(env, dataEncoder, NativeDataEncoder_encodeNativeData);
        if(theMemory == NULL)
        {
                *address  = 0;
                *size     = 0;
        }
        else
        {
                *address  = (void*) (*env)->GetLongField(env, theMemory, NativeDataMemory_dataAddress);
                *size     = (*env)->GetIntField(env, theMemory, NativeDataMemory_dataSize);
//              printf("data address = %x, data size = %d\n",*address, *size);
        }
        DBGx(dim_Dbg_SERVICE_CALLBACK) printf("DimJNI: server_SERVICE_CALLBACK(dataEncoder=%08lx)\n        ==>    data: %08lx size %08x\n", (dim_long)dataEncoder, (dim_long) *address, *size); 

        if ((*env)->ExceptionOccurred(env)) (*env)->ExceptionDescribe(env); // clear any possible exception, if we do not do this, all further methods will fail!!
        if(doit)
                (*theJavaVM)->DetachCurrentThread(theJavaVM);

        return;
}

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