| /* |
| * Copyright (c) 2015, 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * 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 |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include <stdio.h> |
| #include <jni.h> |
| #include "jni_util.h" |
| #include "jvm.h" |
| #include "management_ext.h" |
| |
| #define ERR_MSG_SIZE 128 |
| |
| const JmmInterface* jmm_interface = NULL; |
| JavaVM* jvm = NULL; |
| jint jmm_version = 0; |
| |
| JNIEXPORT jint JNICALL |
| DEF_JNI_OnLoad(JavaVM *vm, void *reserved) { |
| JNIEnv* env; |
| |
| jvm = vm; |
| if ((*vm)->GetEnv(vm, (void**) &env, JNI_VERSION_1_2) != JNI_OK) { |
| return JNI_ERR; |
| } |
| |
| jmm_interface = (JmmInterface*) JVM_GetManagement(JMM_VERSION_1_0); |
| if (jmm_interface == NULL) { |
| JNU_ThrowInternalError(env, "Unsupported Management version"); |
| return JNI_ERR; |
| } |
| |
| jmm_version = jmm_interface->GetVersion(env); |
| return (*env)->GetVersion(env); |
| } |
| |
| void throw_internal_error(JNIEnv* env, const char* msg) { |
| char errmsg[128]; |
| |
| sprintf(errmsg, "errno: %d error: %s\n", errno, msg); |
| JNU_ThrowInternalError(env, errmsg); |
| } |