src/hotspot/share/gc/g1/g1FullGCScope.hpp
author tschatzl
Wed, 17 Jul 2019 16:33:19 +0200
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permissions -rw-r--r--
8227084: Add timing information for merge heap root preparation Reviewed-by: sangheki, kbarrett
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/*
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 * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef SHARE_GC_G1_G1FULLGCSCOPE_HPP
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#define SHARE_GC_G1_G1FULLGCSCOPE_HPP
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#include "gc/g1/g1CollectedHeap.hpp"
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#include "gc/g1/g1HeapTransition.hpp"
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#include "gc/shared/gcId.hpp"
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#include "gc/shared/gcTrace.hpp"
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#include "gc/shared/gcTraceTime.hpp"
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#include "gc/shared/gcTimer.hpp"
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#include "gc/shared/gcVMOperations.hpp"
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#include "gc/shared/isGCActiveMark.hpp"
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#include "memory/allocation.hpp"
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#include "services/memoryService.hpp"
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class GCMemoryManager;
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// Class used to group scoped objects used in the Full GC together.
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class G1FullGCScope : public StackObj {
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  ResourceMark            _rm;
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  bool                    _explicit_gc;
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  G1CollectedHeap*        _g1h;
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  GCIdMark                _gc_id;
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  SvcGCMarker             _svc_marker;
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  STWGCTimer              _timer;
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  G1FullGCTracer          _tracer;
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  IsGCActiveMark          _active;
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  GCTraceCPUTime          _cpu_time;
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  ClearedAllSoftRefs      _soft_refs;
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  G1MonitoringScope       _monitoring_scope;
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  G1HeapTransition        _heap_transition;
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public:
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  G1FullGCScope(G1MonitoringSupport* monitoring_support, bool explicit_gc, bool clear_soft);
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  ~G1FullGCScope();
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  bool is_explicit_gc();
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  bool should_clear_soft_refs();
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  STWGCTimer* timer();
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  G1FullGCTracer* tracer();
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  G1HeapTransition* heap_transition();
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};
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#endif // SHARE_GC_G1_G1FULLGCSCOPE_HPP