1 /*
   2  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include <jni.h>
  27 #include "management.h"
  28 #include "sun_management_GarbageCollectorImpl.h"
  29 
  30 JNIEXPORT jlong JNICALL Java_sun_management_GarbageCollectorImpl_getCollectionCount
  31   (JNIEnv *env, jobject mgr) {
  32     return jmm_interface->GetLongAttribute(env, mgr, JMM_GC_COUNT);
  33 }
  34 
  35 JNIEXPORT jlong JNICALL Java_sun_management_GarbageCollectorImpl_getCollectionTime
  36   (JNIEnv *env, jobject mgr) {
  37     return jmm_interface->GetLongAttribute(env, mgr, JMM_GC_TIME_MS);
  38 }
  39 
  40 
  41 JNIEXPORT void JNICALL Java_sun_management_GarbageCollectorImpl_setNotificationEnabled
  42 (JNIEnv *env, jobject dummy, jobject gc,jboolean enabled) {
  43 
  44     if (gc == NULL) {
  45         JNU_ThrowNullPointerException(env, "Invalid GarbageCollectorMBean");
  46         return;
  47     }
  48     if((jmm_version > JMM_VERSION_1_2)
  49        || (jmm_version == JMM_VERSION_1_2 && ((jmm_version&0xFF)>=1))) {
  50       jmm_interface->SetGCNotificationEnabled(env, gc, enabled);
  51     }
  52 }