Mercurial > hg > graal-jvmci-8
diff agent/src/share/classes/sun/jvm/hotspot/memory/GenerationFactory.java @ 0:a61af66fc99e jdk7-b24
Initial load
author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | c18cbe5936b8 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/agent/src/share/classes/sun/jvm/hotspot/memory/GenerationFactory.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,88 @@ +/* + * 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.memory; + +import java.util.*; + +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.runtime.*; +import sun.jvm.hotspot.types.*; + +/** Factory containing a VirtualConstructor suitable for instantiating + wrapper objects for all types of generations */ + +public class GenerationFactory { + private static VirtualConstructor ctor; + + static { + VM.registerVMInitializedObserver(new Observer() { + public void update(Observable o, Object data) { + initialize(VM.getVM().getTypeDataBase()); + } + }); + } + + private static synchronized void initialize(TypeDataBase db) { + ctor = new VirtualConstructor(db); + + ctor.addMapping("CompactingPermGenGen", CompactingPermGenGen.class); + ctor.addMapping("CMSPermGenGen", CMSPermGenGen.class); + ctor.addMapping("DefNewGeneration", DefNewGeneration.class); + ctor.addMapping("ParNewGeneration", ParNewGeneration.class); + ctor.addMapping("TenuredGeneration", TenuredGeneration.class); + ctor.addMapping("ConcurrentMarkSweepGeneration", ConcurrentMarkSweepGeneration.class); + } + + public static Generation newObject(Address addr) { + try { + return (Generation) ctor.instantiateWrapperFor(addr); + } catch (WrongTypeException e) { + return new Generation(addr) { + public String name() { + return "unknown generation type"; + } + public void spaceIterate(SpaceClosure blk, boolean usedOnly) { + } + public void printOn(java.io.PrintStream tty) { + tty.println("unknown subtype of Generation @ " + getAddress() + " (" + + virtualSpace().low() + "," + virtualSpace().high() + ")"); + } + public long used() { + return 0; + } + public long free() { + return 0; + } + public long capacity() { + return 0; + } + public long contiguousAvailable() { + return 0; + } + + }; + } + } +}