1 /*
 2  * Copyright (c) 2018, 2023, Red Hat, Inc. All rights reserved.
 3  * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
 4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 5  *
 6  * This code is free software; you can redistribute it and/or modify it
 7  * under the terms of the GNU General Public License version 2 only, as
 8  * published by the Free Software Foundation.
 9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
17  * 2 along with this work; if not, write to the Free Software Foundation,
18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21  * or visit www.oracle.com if you need additional information or have any
22  * questions.
23  *
24  */
25 
26 #include "precompiled.hpp"
27 
28 #include "gc/shenandoah/mode/shenandoahMode.hpp"
29 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
30 #include "gc/shenandoah/shenandoahThreadLocalData.hpp"
31 
32 ShenandoahThreadLocalData::ShenandoahThreadLocalData() :
33   _gc_state(0),
34   _oom_scope_nesting_level(0),
35   _oom_during_evac(false),
36   _satb_mark_queue(&ShenandoahBarrierSet::satb_mark_queue_set()),
37   _gclab(nullptr),
38   _gclab_size(0),
39   _paced_time(0),
40   _plab(nullptr),
41   _plab_size(0),
42   _plab_evacuated(0),
43   _plab_promoted(0),
44   _plab_preallocated_promoted(0),
45   _plab_allows_promotion(true),
46   _plab_retries_enabled(true),
47   _evacuation_stats(nullptr) {
48   bool gen_mode = ShenandoahHeap::heap()->mode()->is_generational();
49   _evacuation_stats = new ShenandoahEvacuationStats(gen_mode);
50 }
51 
52 ShenandoahThreadLocalData::~ShenandoahThreadLocalData() {
53   if (_gclab != nullptr) {
54     delete _gclab;
55   }
56   if (_plab != nullptr) {
57     ShenandoahHeap::heap()->retire_plab(_plab);
58     delete _plab;
59   }
60 
61   // TODO: Preserve these stats somewhere for mutator threads.
62   delete _evacuation_stats;
63 }