/*

 * Copyright (c) 2013, 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/shared/gcId.hpp"

#include "gc/shared/objectCountEventSender.hpp"

#include "jfr/jfrEvents.hpp"

#include "memory/heapInspection.hpp"

#include "utilities/macros.hpp"

#include "utilities/ticks.hpp"

#if INCLUDE_SERVICES

bool ObjectCountEventSender::should_send_event() {

#if INCLUDE_JFR

  return _should_send_requestable_event || EventObjectCountAfterGC::is_enabled();

#else

  return false;

#endif // INCLUDE_JFR

}

bool ObjectCountEventSender::_should_send_requestable_event = false;

void ObjectCountEventSender::enable_requestable_event() {

  _should_send_requestable_event = true;

}

void ObjectCountEventSender::disable_requestable_event() {

  _should_send_requestable_event = false;

}

template <typename T>

void ObjectCountEventSender::send_event_if_enabled(Klass* klass, jlong count, julong size, const Ticks& timestamp) {

  T event(UNTIMED);

  if (event.should_commit()) {

    event.set_gcId(GCId::current());

    event.set_objectClass(klass);

    event.set_count(count);

    event.set_totalSize(size);

    event.set_endtime(timestamp);

    event.commit();

  }

}

void ObjectCountEventSender::send(const KlassInfoEntry* entry, const Ticks& timestamp) {

  Klass* klass = entry->klass();

  jlong count = entry->count();

  julong total_size = entry->words() * BytesPerWord;

  send_event_if_enabled<EventObjectCount>(klass, count, total_size, timestamp);

  send_event_if_enabled<EventObjectCountAfterGC>(klass, count, total_size, timestamp);

}

#endif // INCLUDE_SERVICES