1 /*
   2  * Copyright (c) 2014, 2019, 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.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package compiler.testlibrary.rtm;
  25 
  26 /**
  27  * Current RTM locking implementation force transaction abort
  28  * before native method call by explicit xabort(0) call.
  29  */
  30 public class XAbortProvoker extends AbortProvoker {
  31 
  32     static {
  33         try {
  34             System.loadLibrary("XAbortProvoker");
  35         } catch (UnsatisfiedLinkError e) {
  36             System.out.println("Could not load native library: " + e);
  37         }
  38     }
  39 
  40     public native int doAbort();
  41 
  42     // Following field have to be static in order to avoid escape analysis.
  43     @SuppressWarnings("UnsuedDeclaration")
  44     private static int field = 0;
  45 
  46     public XAbortProvoker() {
  47         this(new Object());
  48     }
  49 
  50     public XAbortProvoker(Object monitor) {
  51         super(monitor);
  52     }
  53 
  54     @Override
  55     public void forceAbort() {
  56         synchronized(monitor) {
  57             XAbortProvoker.field = doAbort();
  58         }
  59     }
  60 
  61     @Override
  62     public String[] getMethodsToCompileNames() {
  63         return new String[] {
  64                 getMethodWithLockName(),
  65                 XAbortProvoker.class.getName() + "::doAbort"
  66         };
  67     }
  68 }