src/hotspot/share/gc/g1/g1FullGCScope.cpp
author stefank
Thu, 22 Feb 2018 18:36:07 +0100
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permissions -rw-r--r--
8198515: Extract SoftReferencePolicy code out of CollectorPolicy Reviewed-by: pliden, sjohanss
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/*
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 * Copyright (c) 2017, 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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#include "precompiled.hpp"
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#include "gc/g1/g1FullGCScope.hpp"
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G1FullGCScope::G1FullGCScope(GCMemoryManager* memory_manager, bool explicit_gc, bool clear_soft) :
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    _rm(),
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    _explicit_gc(explicit_gc),
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    _g1h(G1CollectedHeap::heap()),
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    _gc_id(),
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    _svc_marker(SvcGCMarker::FULL),
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    _timer(),
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    _tracer(),
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    _active(),
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    _cpu_time(),
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    _soft_refs(clear_soft, _g1h->soft_ref_policy()),
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    _memory_stats(memory_manager, _g1h->gc_cause()),
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    _collector_stats(_g1h->g1mm()->full_collection_counters()),
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    _heap_transition(_g1h) {
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  _timer.register_gc_start();
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  _tracer.report_gc_start(_g1h->gc_cause(), _timer.gc_start());
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  _g1h->pre_full_gc_dump(&_timer);
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  _g1h->trace_heap_before_gc(&_tracer);
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}
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G1FullGCScope::~G1FullGCScope() {
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  // We must call G1MonitoringSupport::update_sizes() in the same scoping level
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  // as an active TraceMemoryManagerStats object (i.e. before the destructor for the
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  // TraceMemoryManagerStats is called) so that the G1 memory pools are updated
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  // before any GC notifications are raised.
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  _g1h->g1mm()->update_sizes();
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  _g1h->trace_heap_after_gc(&_tracer);
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  _g1h->post_full_gc_dump(&_timer);
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  _timer.register_gc_end();
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  _tracer.report_gc_end(_timer.gc_end(), _timer.time_partitions());
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}
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bool G1FullGCScope::is_explicit_gc() {
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  return _explicit_gc;
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}
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bool G1FullGCScope::should_clear_soft_refs() {
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  return _soft_refs.should_clear();
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}
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STWGCTimer* G1FullGCScope::timer() {
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  return &_timer;
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}
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G1FullGCTracer* G1FullGCScope::tracer() {
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  return &_tracer;
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}
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G1HeapTransition* G1FullGCScope::heap_transition() {
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  return &_heap_transition;
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}