annotate test/compiler/testlibrary/rtm/NestedAbortProvoker.java @ 20304:a22acf6d7598

8048112: G1 Full GC needs to support the case when the very first region is not available Summary: Refactor preparation for compaction during Full GC so that it lazily initializes the first compaction point. This also avoids problems later when the first region may not be committed. Also reviewed by K. Barrett. Reviewed-by: brutisso
author tschatzl
date Mon, 21 Jul 2014 10:00:31 +0200
parents 665bbe93823f
children
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1 /*
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2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
665bbe93823f 8039499: Add all common classes used by tests on RTM support to testlibrary
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 *
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23 */
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24
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25 package rtm;
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26
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27 import java.util.Arrays;
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28
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29 /**
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30 * In order to force nested transaction abort NestedAbortProvoker
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31 * invoke BufferOverflowProvoker from transactional region.
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32 */
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33 class NestedAbortProvoker extends AbortProvoker {
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34 // Following field have to be static in order to avoid escape analysis.
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35 @SuppressWarnings("UnsuedDeclaration")
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36 private static int field = 0;
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37 private final AbortProvoker nestedAbortProvoker;
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38
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39 public NestedAbortProvoker() {
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40 this.nestedAbortProvoker = new XAbortProvoker(monitor);
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41 }
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42
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43 @Override
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44 public void forceAbort() {
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45 synchronized(monitor) {
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46 NestedAbortProvoker.field++;
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47 nestedAbortProvoker.forceAbort();
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48 NestedAbortProvoker.field--;
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49 }
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50 }
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51
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52 @Override
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53 public String[] getMethodsToCompileNames() {
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54 String nestedProvokerMethods[]
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55 = nestedAbortProvoker.getMethodsToCompileNames();
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56 String methods[] = Arrays.copyOf(nestedProvokerMethods,
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57 nestedProvokerMethods.length + 1);
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58 methods[methods.length - 1] = getMethodWithLockName();
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59 return methods;
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60 }
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61 }