g1OopClosures.cpp revision 8413:92457dfb91bd 
1/*
2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
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
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25#include "precompiled.hpp"
26#include "gc/g1/g1CollectedHeap.inline.hpp"
27#include "gc/g1/g1OopClosures.inline.hpp"
28#include "gc/g1/g1ParScanThreadState.hpp"
29#include "gc/g1/g1_specialized_oop_closures.hpp"
30#include "memory/iterator.inline.hpp"
31#include "utilities/stack.inline.hpp"
32
33G1ParCopyHelper::G1ParCopyHelper(G1CollectedHeap* g1,  G1ParScanThreadState* par_scan_state) :
34  G1ParClosureSuper(g1, par_scan_state), _scanned_klass(NULL),
35  _cm(_g1->concurrent_mark()) {}
36
37G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1) :
38  _g1(g1), _par_scan_state(NULL), _worker_id(UINT_MAX) { }
39
40G1ParClosureSuper::G1ParClosureSuper(G1CollectedHeap* g1, G1ParScanThreadState* par_scan_state) :
41  _g1(g1), _par_scan_state(NULL),
42  _worker_id(UINT_MAX) {
43  set_par_scan_thread_state(par_scan_state);
44}
45
46void G1ParClosureSuper::set_par_scan_thread_state(G1ParScanThreadState* par_scan_state) {
47  assert(_par_scan_state == NULL, "_par_scan_state must only be set once");
48  assert(par_scan_state != NULL, "Must set par_scan_state to non-NULL.");
49
50  _par_scan_state = par_scan_state;
51  _worker_id = par_scan_state->queue_num();
52
53  assert(_worker_id < MAX2((uint)ParallelGCThreads, 1u),
54         err_msg("The given worker id %u must be less than the number of threads %u", _worker_id, MAX2((uint)ParallelGCThreads, 1u)));
55}
56
57// Generate G1 specialized oop_oop_iterate functions.
58SPECIALIZED_OOP_OOP_ITERATE_CLOSURES_G1(ALL_KLASS_OOP_OOP_ITERATE_DEFN)
59