86 lines
2.5 KiB
Java
86 lines
2.5 KiB
Java
/*
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* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package jvmti;
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public class JVMTIUtils {
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public static int JVMTI_ERROR_NONE = 0;
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public static int JVMTI_ERROR_THREAD_NOT_SUSPENDED = 13;
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public static int JVMTI_ERROR_THREAD_SUSPENDED = 14;
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public static int JVMTI_ERROR_THREAD_NOT_ALIVE = 15;
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public static int JVMTI_ERROR_WRONG_PHASE = 112;
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public static class JvmtiException extends RuntimeException {
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private int code;
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public JvmtiException(int code) {
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this.code = code;
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}
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public int getCode() {
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return code;
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}
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@Override
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public String getMessage(){
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return "JVMTI ERROR: " + code;
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}
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}
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private static native int init();
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static {
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System.loadLibrary("JvmtiUtils");
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if (init() != 0) {
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throw new RuntimeException("Error during native lib utilization.");
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}
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}
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private static native void stopThread(Thread t, Throwable ex);
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public static void stopThread(Thread t) {
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stopThread(t, new ThreadDeath());
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}
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private static native int suspendThread0(Thread t);
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private static native int resumeThread0(Thread t);
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public static void suspendThread(Thread t) {
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int err = suspendThread0(t);
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if (err != JVMTI_ERROR_NONE) {
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throw new JvmtiException(err);
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}
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}
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public static void resumeThread(Thread t) {
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int err = resumeThread0(t);
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if (err != JVMTI_ERROR_NONE) {
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throw new JvmtiException(err);
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}
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}
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}
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