Mercurial > hg > graal-compiler
diff agent/src/share/classes/sun/jvm/hotspot/gc_interface/CollectedHeap.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
---|---|
date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/gc_interface/CollectedHeap.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,86 @@ +/* + * Copyright 2000-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, + * CA 95054 USA or visit www.sun.com if you need additional information or + * have any questions. + * + */ + +package sun.jvm.hotspot.gc_interface; + +import java.io.*; +import java.util.*; + +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.memory.*; +import sun.jvm.hotspot.runtime.*; +import sun.jvm.hotspot.types.*; + +public class CollectedHeap extends VMObject { + private static long reservedFieldOffset; + + static { + VM.registerVMInitializedObserver(new Observer() { + public void update(Observable o, Object data) { + initialize(VM.getVM().getTypeDataBase()); + } + }); + } + + private static synchronized void initialize(TypeDataBase db) { + Type type = db.lookupType("CollectedHeap"); + + reservedFieldOffset = type.getField("_reserved").getOffset(); + } + + public CollectedHeap(Address addr) { + super(addr); + } + + /** Returns the lowest address of the heap. */ + public Address start() { + return reservedRegion().start(); + } + + public long capacity() { return 0; } + public long used() { return 0; } + + public MemRegion reservedRegion() { + return new MemRegion(addr.addOffsetTo(reservedFieldOffset)); + } + + public boolean isIn(Address a) { + return isInReserved(a); + } + + public boolean isInReserved(Address a) { + return reservedRegion().contains(a); + } + + public CollectedHeapName kind() { + return CollectedHeapName.ABSTRACT; + } + + public void print() { printOn(System.out); } + public void printOn(PrintStream tty) { + MemRegion mr = reservedRegion(); + tty.println("unknown subtype of CollectedHeap @ " + getAddress() + " (" + + mr.start() + "," + mr.end() + ")"); + } +}