1 /*
   2  * Copyright (c) 2017, 2019, 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
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef SHARE_GC_G1_G1FULLGCSCOPE_HPP
  26 #define SHARE_GC_G1_G1FULLGCSCOPE_HPP
  27 
  28 #include "gc/g1/g1CollectedHeap.hpp"
  29 #include "gc/g1/g1HeapTransition.hpp"
  30 #include "gc/g1/g1Trace.hpp"
  31 #include "gc/shared/gcId.hpp"
  32 #include "gc/shared/gcTraceTime.hpp"
  33 #include "gc/shared/gcTimer.hpp"
  34 #include "gc/shared/gcVMOperations.hpp"
  35 #include "gc/shared/isGCActiveMark.hpp"
  36 #include "memory/allocation.hpp"
  37 #include "services/memoryService.hpp"
  38 
  39 class GCMemoryManager;
  40 
  41 // Class used to group scoped objects used in the Full GC together.
  42 class G1FullGCScope : public StackObj {
  43   ResourceMark            _rm;
  44   bool                    _explicit_gc;
  45   G1CollectedHeap*        _g1h;
  46   GCIdMark                _gc_id;
  47   SvcGCMarker             _svc_marker;
  48   STWGCTimer              _timer;
  49   G1FullGCTracer          _tracer;
  50   IsGCActiveMark          _active;
  51   GCTraceCPUTime          _cpu_time;
  52   ClearedAllSoftRefs      _soft_refs;
  53   G1MonitoringScope       _monitoring_scope;
  54   G1HeapTransition        _heap_transition;
  55 
  56 public:
  57   G1FullGCScope(G1MonitoringSupport* monitoring_support, bool explicit_gc, bool clear_soft);
  58   ~G1FullGCScope();
  59 
  60   bool is_explicit_gc();
  61   bool should_clear_soft_refs();
  62 
  63   STWGCTimer* timer();
  64   G1FullGCTracer* tracer();
  65   G1HeapTransition* heap_transition();
  66 };
  67 
  68 #endif // SHARE_GC_G1_G1FULLGCSCOPE_HPP