comparison src/share/vm/gc_implementation/parallelScavenge/psMarkSweepDecorator.cpp @ 6725:da91efe96a93

6964458: Reimplement class meta-data storage to use native memory Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
author coleenp
date Sat, 01 Sep 2012 13:25:18 -0400
parents d06a2d7fcd5b
children b735136e0d82
comparison
equal deleted inserted replaced
6724:36d1d483d5d6 6725:da91efe96a93
1 /* 1 /*
2 * Copyright (c) 2001, 2011, Oracle and/or its affiliates. All rights reserved. 2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 * 4 *
5 * This code is free software; you can redistribute it and/or modify it 5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as 6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. 7 * published by the Free Software Foundation.
41 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); 41 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
42 42
43 _destination_decorator = heap->old_gen()->object_mark_sweep(); 43 _destination_decorator = heap->old_gen()->object_mark_sweep();
44 } 44 }
45 45
46 void PSMarkSweepDecorator::set_destination_decorator_perm_gen() {
47 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
48 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
49
50 _destination_decorator = heap->perm_gen()->object_mark_sweep();
51 }
52
53 void PSMarkSweepDecorator::advance_destination_decorator() { 46 void PSMarkSweepDecorator::advance_destination_decorator() {
54 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap(); 47 ParallelScavengeHeap* heap = (ParallelScavengeHeap*)Universe::heap();
55 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity"); 48 assert(heap->kind() == CollectedHeap::ParallelScavengeHeap, "Sanity");
56 49
57 assert(_destination_decorator != NULL, "Sanity"); 50 assert(_destination_decorator != NULL, "Sanity");
58 guarantee(_destination_decorator != heap->perm_gen()->object_mark_sweep(), "Cannot advance perm gen decorator");
59 51
60 PSMarkSweepDecorator* first = heap->old_gen()->object_mark_sweep(); 52 PSMarkSweepDecorator* first = heap->old_gen()->object_mark_sweep();
61 PSMarkSweepDecorator* second = heap->young_gen()->eden_mark_sweep(); 53 PSMarkSweepDecorator* second = heap->young_gen()->eden_mark_sweep();
62 PSMarkSweepDecorator* third = heap->young_gen()->from_mark_sweep(); 54 PSMarkSweepDecorator* third = heap->young_gen()->from_mark_sweep();
63 PSMarkSweepDecorator* fourth = heap->young_gen()->to_mark_sweep(); 55 PSMarkSweepDecorator* fourth = heap->young_gen()->to_mark_sweep();