| /* |
| * Copyright (c) 2014, 2015, 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. |
| * |
| */ |
| |
| #include "precompiled.hpp" |
| #include "gc/g1/g1CollectedHeap.inline.hpp" |
| #include "gc/g1/g1OopClosures.inline.hpp" |
| #include "gc/g1/g1ParScanThreadState.hpp" |
| #include "gc/g1/g1_specialized_oop_closures.hpp" |
| #include "memory/iterator.inline.hpp" |
| #include "utilities/stack.inline.hpp" |
| |
| G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : |
| _g1(g1), |
| _par_scan_state(par_scan_state), |
| _worker_id(par_scan_state->worker_id()), |
| _scanned_klass(NULL), |
| _cm(_g1->concurrent_mark()) |
| { } |
| |
| G1ScanClosureBase::G1ScanClosureBase(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) : |
| _g1(g1), _par_scan_state(par_scan_state), _from(NULL) |
| { } |
| |
| void G1KlassScanClosure::do_klass(Klass* klass) { |
| // If the klass has not been dirtied we know that there's |
| // no references into the young gen and we can skip it. |
| if (!_process_only_dirty || klass->has_modified_oops()) { |
| // Clean the klass since we're going to scavenge all the metadata. |
| klass->clear_modified_oops(); |
| |
| // Tell the closure that this klass is the Klass to scavenge |
| // and is the one to dirty if oops are left pointing into the young gen. |
| _closure->set_scanned_klass(klass); |
| |
| klass->oops_do(_closure); |
| |
| _closure->set_scanned_klass(NULL); |
| } |
| _count++; |
| } |
| |
| // Generate G1 specialized oop_oop_iterate functions. |
| SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN) |