1 /*
 2  * Copyright (c) 2013, 2021, Red Hat, Inc. 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
21  * questions.
22  *
23  */
24 
25 #include "precompiled.hpp"
26 
27 #include "gc/shenandoah/shenandoahConcurrentGC.hpp"
28 #include "gc/shenandoah/shenandoahDegeneratedGC.hpp"
29 #include "gc/shenandoah/shenandoahFullGC.hpp"
30 #include "gc/shenandoah/shenandoahGeneration.hpp"
31 #include "gc/shenandoah/shenandoahHeap.inline.hpp"
32 #include "gc/shenandoah/shenandoahMark.inline.hpp"
33 #include "gc/shenandoah/shenandoahOopClosures.inline.hpp"
34 #include "gc/shenandoah/shenandoahUtils.hpp"
35 #include "gc/shenandoah/shenandoahVMOperations.hpp"
36 #include "memory/universe.hpp"
37 
38 bool VM_ShenandoahReferenceOperation::doit_prologue() {
39   Heap_lock->lock();
40   return true;
41 }
42 
43 void VM_ShenandoahReferenceOperation::doit_epilogue() {
44   if (Universe::has_reference_pending_list()) {
45     Heap_lock->notify_all();
46   }
47   Heap_lock->unlock();
48 }
49 
50 void VM_ShenandoahInitMark::doit() {
51   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
52   _gc->entry_init_mark();
53 }
54 
55 void VM_ShenandoahFinalMarkStartEvac::doit() {
56   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
57   _gc->entry_final_mark();
58 }
59 
60 void VM_ShenandoahFullGC::doit() {
61   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::FULL);
62   _full_gc->entry_full(_gc_cause);
63 }
64 
65 void VM_ShenandoahDegeneratedGC::doit() {
66   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
67   _gc->entry_degenerated();
68 }
69 
70 void VM_ShenandoahInitUpdateRefs::doit() {
71   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
72   _gc->entry_init_updaterefs();
73 }
74 
75 void VM_ShenandoahFinalUpdateRefs::doit() {
76   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
77   _gc->entry_final_updaterefs();
78 }
79 
80 void VM_ShenandoahFinalRoots::doit() {
81   ShenandoahGCPauseMark mark(_gc_id, SvcGCMarker::CONCURRENT);
82   _gc->entry_final_roots();
83 }