1 /* 2 * Copyright (c) 2019, 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_implementation/shared/gcId.hpp" 28 #include "gc_implementation/shared/objectCountEventSender.hpp" 29 #include "memory/heapInspection.hpp" 30 #include "trace/tracing.hpp" 31 #include "utilities/globalDefinitions.hpp" 32 #include "utilities/macros.hpp" 33 #include "utilities/ticks.hpp" 34 #if INCLUDE_SERVICES 35 bool ObjectCountEventSender::should_send_event() { 36 #if INCLUDE_TRACE 37 return _should_send_requestable_event || 38 Tracing::is_event_enabled(EventObjectCountAfterGC::eventId); 39 #else 40 return false; 41 #endif // INCLUDE_TRACE 42 } 43 44 bool ObjectCountEventSender::_should_send_requestable_event = false; 45 46 void ObjectCountEventSender::enable_requestable_event() { 47 _should_send_requestable_event = true; 48 } 49 50 void ObjectCountEventSender::disable_requestable_event() { 51 _should_send_requestable_event = false; 52 } 53 54 template <typename T> 55 void ObjectCountEventSender::send_event_if_enabled(Klass* klass, jlong count, julong size, GCId gc_id, const Ticks& timestamp) { 56 T event(UNTIMED); 57 if (event.should_commit()) { 58 event.set_gcId(gc_id.id()); 59 event.set_objectClass(klass); 60 event.set_count(count); 61 event.set_totalSize(size); 62 event.set_endtime(timestamp); 63 event.commit(); 64 } 65 } 66 67 void ObjectCountEventSender::send(const KlassInfoEntry* entry, GCId gc_id, const Ticks& timestamp) { 68 Klass* klass = entry->klass(); 69 jlong count = entry->count(); 70 julong total_size = entry->words() * BytesPerWord; 71 72 send_event_if_enabled<EventObjectCount>(klass, count, total_size, gc_id, timestamp); 73 send_event_if_enabled<EventObjectCountAfterGC>(klass, count, total_size, gc_id, timestamp); 74 } 75 #endif // INCLUDE_SERVICES