| /* |
| * Copyright (c) 2014, 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. |
| * |
| * 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. |
| * |
| */ |
| |
| package rtm; |
| |
| import com.oracle.java.testlibrary.Asserts; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| /** |
| * Type of transactional execution abort. |
| * For more details on different abort types please see |
| * shared/vm/runtime/rtmLocking.hpp |
| */ |
| public enum AbortType { |
| XABORT(0), |
| RETRIABLE(1), |
| MEM_CONFLICT(2), |
| BUF_OVERFLOW(3), |
| DEBUG_BREAKPOINT(4), |
| NESTED_ABORT(5); |
| |
| private final int type; |
| private static final Map<Integer, AbortType> LOOKUP_MAP = new HashMap<>(); |
| |
| static { |
| for (AbortType abortType : AbortType.values()) { |
| Asserts.assertFalse(LOOKUP_MAP.containsKey(abortType.type), |
| "Abort type values should be unique."); |
| LOOKUP_MAP.put(abortType.type, abortType); |
| } |
| } |
| |
| private AbortType(int type) { |
| this.type = type; |
| } |
| |
| /** |
| * Returns AbortProvoker for aborts represented by this abort type. |
| * |
| * @return an AbortProvoker instance |
| */ |
| public AbortProvoker provoker() { |
| return AbortType.createNewProvoker(this); |
| } |
| |
| public static AbortType lookup(int type) { |
| Asserts.assertLT(type, AbortType.values().length, |
| "Unknown abort type."); |
| return LOOKUP_MAP.get(type); |
| } |
| |
| /** |
| * Returns transaction execution abort provoker for specified abortion type. |
| * |
| * @param type a type of abort which will be forced by returned |
| * AbortProvoker instance. |
| * @return AbortProvoker instance that will force abort of specified type |
| * @throws RuntimeException if there is no provoker for specified type |
| */ |
| private static AbortProvoker createNewProvoker(AbortType type) { |
| switch (type) { |
| case XABORT: |
| return new XAbortProvoker(); |
| case MEM_CONFLICT: |
| return new MemoryConflictProvoker(); |
| case BUF_OVERFLOW: |
| return new BufferOverflowProvoker(); |
| case NESTED_ABORT: |
| return new NestedAbortProvoker(); |
| default: |
| throw new RuntimeException("No provoker exists for type " |
| + type.name()); |
| } |
| } |
| |
| @Override |
| public String toString() { |
| return Integer.toString(type); |
| } |
| } |