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/*
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* Copyright (c) 2019, Red Hat, Inc. All rights reserved.
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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/shenandoah/shenandoahHeap.hpp"
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#include "gc/shenandoah/shenandoahHeapRegion.hpp"
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#include "gc/shenandoah/shenandoahJfrSupport.hpp"
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#include "jfr/jfrEvents.hpp"
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#if INCLUDE_JFR
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#include "jfr/metadata/jfrSerializer.hpp"
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#endif
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#if INCLUDE_JFR
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class ShenandoahHeapRegionStateConstant : public JfrSerializer {
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friend class ShenandoahHeapRegion;
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public:
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virtual void serialize(JfrCheckpointWriter& writer) {
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static const u4 nof_entries = ShenandoahHeapRegion::region_states_num();
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writer.write_count(nof_entries);
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for (u4 i = 0; i < nof_entries; ++i) {
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writer.write_key(i);
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writer.write(ShenandoahHeapRegion::region_state_to_string((ShenandoahHeapRegion::RegionState)i));
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}
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}
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};
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void ShenandoahJFRSupport::register_jfr_type_serializers() {
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JfrSerializer::register_serializer(TYPE_SHENANDOAHHEAPREGIONSTATE,
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true,
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new ShenandoahHeapRegionStateConstant());
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}
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#endif
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class ShenandoahDumpHeapRegionInfoClosure : public ShenandoahHeapRegionClosure {
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public:
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virtual void heap_region_do(ShenandoahHeapRegion* r) {
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EventShenandoahHeapRegionInformation evt;
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evt.set_index((unsigned)r->region_number());
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evt.set_state((u8)r->state());
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evt.set_start((uintptr_t)r->bottom());
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evt.set_used(r->used());
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evt.commit();
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}
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};
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void VM_ShenandoahSendHeapRegionInfoEvents::doit() {
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ShenandoahDumpHeapRegionInfoClosure c;
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ShenandoahHeap::heap()->heap_region_iterate(&c);
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}
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