| /* |
| * Copyright (c) 2001, 2017, 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 sun.jvm.hotspot.runtime; |
| |
| import java.util.Observer; |
| import sun.jvm.hotspot.types.TypeDataBase; |
| |
| |
| /** Encapsulates the BasicTypeSize enum in globalDefinitions.hpp in |
| the VM. */ |
| |
| public class BasicTypeSize { |
| private static int tBooleanSize; |
| private static int tCharSize; |
| private static int tFloatSize; |
| private static int tDoubleSize; |
| private static int tByteSize; |
| private static int tShortSize; |
| private static int tIntSize; |
| private static int tLongSize; |
| private static int tObjectSize; |
| private static int tArraySize; |
| private static int tNarrowOopSize; |
| private static int tNarrowKlassSize; |
| private static int tVoidSize; |
| |
| static { |
| VM.registerVMInitializedObserver( |
| (o, d) -> initialize(VM.getVM().getTypeDataBase())); |
| } |
| |
| private static synchronized void initialize(TypeDataBase db) { |
| tBooleanSize = db.lookupIntConstant("T_BOOLEAN_size").intValue(); |
| tCharSize = db.lookupIntConstant("T_INT_size").intValue(); |
| tFloatSize = db.lookupIntConstant("T_FLOAT_size").intValue(); |
| tDoubleSize = db.lookupIntConstant("T_DOUBLE_size").intValue(); |
| tByteSize = db.lookupIntConstant("T_BYTE_size").intValue(); |
| tShortSize = db.lookupIntConstant("T_SHORT_size").intValue(); |
| tIntSize = db.lookupIntConstant("T_INT_size").intValue(); |
| tLongSize = db.lookupIntConstant("T_LONG_size").intValue(); |
| tObjectSize = db.lookupIntConstant("T_OBJECT_size").intValue(); |
| tArraySize = db.lookupIntConstant("T_ARRAY_size").intValue(); |
| tNarrowOopSize = db.lookupIntConstant("T_NARROWOOP_size").intValue(); |
| tNarrowKlassSize = db.lookupIntConstant("T_NARROWKLASS_size").intValue(); |
| tVoidSize = db.lookupIntConstant("T_VOID_size").intValue(); |
| } |
| |
| public static int getTBooleanSize() { |
| return tBooleanSize; |
| } |
| |
| public static int getTCharSize() { |
| return tCharSize; |
| } |
| |
| public static int getTFloatSize() { |
| return tFloatSize; |
| } |
| |
| public static int getTDoubleSize() { |
| return tDoubleSize; |
| } |
| |
| public static int getTByteSize() { |
| return tByteSize; |
| } |
| |
| public static int getTShortSize() { |
| return tShortSize; |
| } |
| |
| public static int getTIntSize() { |
| return tIntSize; |
| } |
| |
| public static int getTLongSize() { |
| return tLongSize; |
| } |
| |
| public static int getTObjectSize() { |
| return tObjectSize; |
| } |
| |
| public static int getTArraySize() { |
| return tArraySize; |
| } |
| |
| public static int getTNarrowOopSize() { |
| return tNarrowOopSize; |
| } |
| |
| public static int getTNarrowKlassSize() { |
| return tNarrowKlassSize; |
| } |
| |
| public static int getTVoidSize() { |
| return tVoidSize; |
| } |
| } |