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src/hotspot/share/gc/shared/objectCountEventSender.cpp
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rev 49619 : JEP 328 : Flight Recorder open source preview
@@ -1,7 +1,7 @@
/*
- * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
+ * 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.
@@ -26,34 +26,51 @@
#include "precompiled.hpp"
#include "gc/shared/gcId.hpp"
#include "gc/shared/objectCountEventSender.hpp"
#include "memory/heapInspection.hpp"
#include "trace/tracing.hpp"
-#include "utilities/globalDefinitions.hpp"
#include "utilities/macros.hpp"
#include "utilities/ticks.hpp"
#if INCLUDE_SERVICES
-void ObjectCountEventSender::send(const KlassInfoEntry* entry, const Ticks& timestamp) {
+bool ObjectCountEventSender::should_send_event() {
#if INCLUDE_TRACE
- assert(Tracing::is_event_enabled(EventObjectCountAfterGC::eventId),
- "Only call this method if the event is enabled");
+ return _should_send_requestable_event ||
+ Tracing::is_event_enabled(EventObjectCountAfterGC::eventId);
+#else
+ return false;
+#endif // INCLUDE_TRACE
+}
+
+bool ObjectCountEventSender::_should_send_requestable_event = false;
- EventObjectCountAfterGC event(UNTIMED);
+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(entry->klass());
- event.set_count(entry->count());
- event.set_totalSize(entry->words() * BytesPerWord);
+ event.set_objectClass(klass);
+ event.set_count(count);
+ event.set_totalSize(size);
event.set_endtime(timestamp);
event.commit();
-#endif // INCLUDE_TRACE
+ }
}
-bool ObjectCountEventSender::should_send_event() {
-#if INCLUDE_TRACE
- return Tracing::is_event_enabled(EventObjectCountAfterGC::eventId);
-#else
- return false;
-#endif // INCLUDE_TRACE
+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
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