1/*
2 * Copyright (c) 2013, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25
26#include "precompiled.hpp"
27#include "gc/shared/gcId.hpp"
28#include "gc/shared/objectCountEventSender.hpp"
29#include "jfr/jfrEvents.hpp"
30#include "memory/heapInspection.hpp"
31#include "utilities/macros.hpp"
32#include "utilities/ticks.hpp"
33#if INCLUDE_SERVICES
34
35bool ObjectCountEventSender::should_send_event() {
36#if INCLUDE_JFR
37 return _should_send_requestable_event || EventObjectCountAfterGC::is_enabled();
38#else
39 return false;
40#endif // INCLUDE_JFR
41}
42
43bool ObjectCountEventSender::_should_send_requestable_event = false;
44
45void ObjectCountEventSender::enable_requestable_event() {
46 _should_send_requestable_event = true;
47}
48
49void ObjectCountEventSender::disable_requestable_event() {
50 _should_send_requestable_event = false;
51}
52
53template <typename T>
54void ObjectCountEventSender::send_event_if_enabled(Klass* klass, jlong count, julong size, const Ticks& timestamp) {
55 T event(UNTIMED);
56 if (event.should_commit()) {
57 event.set_gcId(GCId::current());
58 event.set_objectClass(klass);
59 event.set_count(count);
60 event.set_totalSize(size);
61 event.set_endtime(timestamp);
62 event.commit();
63 }
64}
65
66void ObjectCountEventSender::send(const KlassInfoEntry* entry, const Ticks& timestamp) {
67 Klass* klass = entry->klass();
68 jlong count = entry->count();
69 julong total_size = entry->words() * BytesPerWord;
70
71 send_event_if_enabled<EventObjectCount>(klass, count, total_size, timestamp);
72 send_event_if_enabled<EventObjectCountAfterGC>(klass, count, total_size, timestamp);
73}
74
75#endif // INCLUDE_SERVICES
76