Mercurial > hg > graal-compiler
view agent/src/share/classes/sun/jvm/hotspot/gc_implementation/g1/HeapRegion.java @ 6010:720b6a76dd9d
7157073: G1: type change size_t -> uint for region counts / indexes
Summary: Change the type of fields / variables / etc. that represent region counts and indeces from size_t to uint.
Reviewed-by: iveresov, brutisso, jmasa, jwilhelm
author | tonyp |
---|---|
date | Wed, 18 Apr 2012 07:21:15 -0400 |
parents | 4f93f0d00802 |
children | 1526a938e670 |
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/* * Copyright (c) 2011, 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.gc_implementation.g1; import java.util.Observable; import java.util.Observer; import sun.jvm.hotspot.debugger.Address; import sun.jvm.hotspot.memory.ContiguousSpace; import sun.jvm.hotspot.runtime.VM; import sun.jvm.hotspot.types.CIntegerField; import sun.jvm.hotspot.types.Type; import sun.jvm.hotspot.types.TypeDataBase; // Mirror class for HeapRegion. Currently we don't actually include // any of its fields but only iterate over it (which we get "for free" // as HeapRegion ultimately inherits from ContiguousSpace). public class HeapRegion extends ContiguousSpace { // static int GrainBytes; static private CIntegerField grainBytesField; static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } static private synchronized void initialize(TypeDataBase db) { Type type = db.lookupType("HeapRegion"); grainBytesField = type.getCIntegerField("GrainBytes"); } static public long grainBytes() { return grainBytesField.getValue(); } public HeapRegion(Address addr) { super(addr); } }