libjnistress007.cpp

/*
 * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

#include <jni.h>
#include <stdio.h>
#include "jnihelper.h"

extern "C" {

JNIEXPORT void JNICALL
Java_nsk_stress_jni_JNIter007_incCount (JNIEnv *env, jobject jobj, jstring name) {
    jclass clazz;
    jfieldID fld;
    jint value;
    const char *str = env->GetStringUTFChars(name, 0); CE

    if (env->MonitorEnter(jobj))
        printf("Error in monitor lock\n");
    clazz = env->GetObjectClass(jobj); CE
    fld = env->GetStaticFieldID(clazz, "nativeCount", "I"); CE
    value = env->GetStaticIntField(clazz, fld); CE
    env->SetStaticIntField(clazz, fld, (jint)(++value)); CE
    env->MonitorExit(jobj); CE
    if (value % 1000 == 0)
        printf("in %s Count after %u\n", str, value);
}

}