1 /*
   2  * Copyright (c) 2005, 2010, 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 "jni_util.h"
  28 #include "jlong.h"
  29 #include "jvm.h"
  30 #include "jdk_util.h"
  31 
  32 #include "sun_misc_VMSupport.h"
  33 
  34 typedef jobject (JNICALL *INIT_AGENT_PROPERTIES_FN)(JNIEnv *, jobject);
  35 
  36 static INIT_AGENT_PROPERTIES_FN InitAgentProperties_fp = NULL;
  37 
  38 JNIEXPORT jobject JNICALL
  39 Java_sun_misc_VMSupport_initAgentProperties(JNIEnv *env, jclass cls, jobject props)
  40 {
  41     if (InitAgentProperties_fp == NULL) {
  42         if (!JDK_InitJvmHandle()) {
  43             JNU_ThrowInternalError(env,
  44                  "Handle for JVM not found for symbol lookup");
  45         }
  46         InitAgentProperties_fp = (INIT_AGENT_PROPERTIES_FN)
  47             JDK_FindJvmEntry("JVM_InitAgentProperties");
  48         if (InitAgentProperties_fp == NULL) {
  49             JNU_ThrowInternalError(env,
  50                  "Mismatched VM version: JVM_InitAgentProperties not found");
  51             return NULL;
  52         }
  53     }
  54     return (*InitAgentProperties_fp)(env, props);
  55 }
  56 
  57 JNIEXPORT jstring JNICALL
  58 Java_sun_misc_VMSupport_getVMTemporaryDirectory(JNIEnv *env, jclass cls)
  59 {
  60     return JVM_GetTemporaryDirectory(env);
  61 }