Mercurial > hg > graal-compiler
diff agent/src/share/classes/sun/jvm/hotspot/gc_implementation/parallelScavenge/ParallelScavengeHeap.java @ 0:a61af66fc99e jdk7-b24
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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/gc_implementation/parallelScavenge/ParallelScavengeHeap.java Sat Dec 01 00:00:00 2007 +0000 @@ -0,0 +1,108 @@ +/* + * Copyright 2003 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_implementation.parallelScavenge; + +import java.io.*; +import java.util.*; + +import sun.jvm.hotspot.debugger.*; +import sun.jvm.hotspot.gc_interface.*; +import sun.jvm.hotspot.runtime.*; +import sun.jvm.hotspot.types.*; + +public class ParallelScavengeHeap extends CollectedHeap { + 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("ParallelScavengeHeap"); + youngGenField = type.getAddressField("_young_gen"); + oldGenField = type.getAddressField("_old_gen"); + permGenField = type.getAddressField("_perm_gen"); + } + + public ParallelScavengeHeap(Address addr) { + super(addr); + } + + // Fields + private static AddressField youngGenField; + private static AddressField oldGenField; + private static AddressField permGenField; + + // Accessors + public PSYoungGen youngGen() { + return (PSYoungGen) VMObjectFactory.newObject(PSYoungGen.class, youngGenField.getValue()); + } + + public PSOldGen oldGen() { + return (PSOldGen) VMObjectFactory.newObject(PSOldGen.class, oldGenField.getValue()); + } + + public PSPermGen permGen() { + return (PSPermGen) VMObjectFactory.newObject(PSPermGen.class, permGenField.getValue()); + } + + public long capacity() { + return youngGen().capacity() + oldGen().capacity(); + } + + public long used() { + return youngGen().used() + oldGen().used(); + } + + public boolean isIn(Address a) { + if (youngGen().isIn(a)) { + return true; + } + + if (oldGen().isIn(a)) { + return true; + } + + if (permGen().isIn(a)) { + return true; + } + + return false; + } + + public CollectedHeapName kind() { + return CollectedHeapName.PARALLEL_SCAVENGE_HEAP; + } + + public void printOn(PrintStream tty) { + tty.print("ParallelScavengeHeap [ "); + youngGen().printOn(tty); + oldGen().printOn(tty); + permGen().printOn(tty); + tty.print(" ] "); + } +}