--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/hotspot/share/gc/g1/g1FullGCScope.cpp	Tue Sep 12 19:03:39 2017 +0200
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+#include "precompiled.hpp"
+#include "gc/g1/g1FullGCScope.hpp"
+
+G1FullGCScope* G1FullGCScope::_instance = NULL;
+
+G1FullGCScope* G1FullGCScope::instance() {
+  assert(_instance != NULL, "Must be setup already");
+  return _instance;
+}
+
+G1FullGCScope::G1FullGCScope(bool explicit_gc, bool clear_soft) :
+    _rm(),
+    _explicit_gc(explicit_gc),
+    _g1h(G1CollectedHeap::heap()),
+    _gc_id(),
+    _svc_marker(SvcGCMarker::FULL),
+    _timer(),
+    _tracer(),
+    _active(),
+    _cpu_time(),
+    _soft_refs(clear_soft, _g1h->collector_policy()),
+    _memory_stats(true, _g1h->gc_cause()),
+    _collector_stats(_g1h->g1mm()->full_collection_counters()),
+    _heap_transition(_g1h) {
+  assert(_instance == NULL, "Only one scope at a time");
+  _timer.register_gc_start();
+  _tracer.report_gc_start(_g1h->gc_cause(), _timer.gc_start());
+  _g1h->pre_full_gc_dump(&_timer);
+  _g1h->trace_heap_before_gc(&_tracer);
+  _instance = this;
+}
+
+G1FullGCScope::~G1FullGCScope() {
+  // We must call G1MonitoringSupport::update_sizes() in the same scoping level
+  // as an active TraceMemoryManagerStats object (i.e. before the destructor for the
+  // TraceMemoryManagerStats is called) so that the G1 memory pools are updated
+  // before any GC notifications are raised.
+  _g1h->g1mm()->update_sizes();
+  _g1h->trace_heap_after_gc(&_tracer);
+  _g1h->post_full_gc_dump(&_timer);
+  _timer.register_gc_end();
+  _tracer.report_gc_end(_timer.gc_end(), _timer.time_partitions());
+  _instance = NULL;
+}
+
+bool G1FullGCScope::is_explicit_gc() {
+  return _explicit_gc;
+}
+
+bool G1FullGCScope::should_clear_soft_refs() {
+  return _soft_refs.should_clear();
+}
+
+STWGCTimer* G1FullGCScope::timer() {
+  return &_timer;
+}
+
+SerialOldTracer* G1FullGCScope::tracer() {
+  return &_tracer;
+}
+
+G1HeapTransition* G1FullGCScope::heap_transition() {
+  return &_heap_transition;
+}