/*

 * Copyright (c) 2016, 2018, 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/g1CollectedHeap.hpp"

#include "gc/g1/heapRegion.hpp"

#include "g1HeapRegionEventSender.hpp"

#include "jfr/jfrEvents.hpp"

#include "runtime/vmThread.hpp"

class DumpEventInfoClosure : public HeapRegionClosure {

public:

  bool do_heap_region(HeapRegion* r) {

    EventG1HeapRegionInformation evt;

    evt.set_index(r->hrm_index());

    evt.set_type(r->get_trace_type());

    evt.set_start((uintptr_t)r->bottom());

    evt.set_used(r->used());

    evt.commit();

    return false;

  }

};

class VM_G1SendHeapRegionInfoEvents : public VM_Operation {

  virtual void doit() {

    DumpEventInfoClosure c;

    G1CollectedHeap::heap()->heap_region_iterate(&c);

  }

  virtual VMOp_Type type() const { return VMOp_HeapIterateOperation; }

};

void G1HeapRegionEventSender::send_events() {

  if (UseG1GC) {

    VM_G1SendHeapRegionInfoEvents op;

    VMThread::execute(&op);

  }

}