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
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23 */
24
25#ifndef SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP
26#define SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP
27
28#include "memory/allocation.hpp"
29#include "jfr/utilities/jfrTime.hpp"
30
31typedef u8 traceid;
32
33class EdgeStore;
34class JfrThreadLocal;
35class ObjectSample;
36class ObjectSampler;
37class Thread;
38
39class EventEmitter : public CHeapObj<mtTracing> {
40 friend class LeakProfiler;
41 friend class PathToGcRootsOperation;
42 private:
43 const JfrTicks& _start_time;
44 const JfrTicks& _end_time;
45 Thread* _thread;
46 JfrThreadLocal* _jfr_thread_local;
47 traceid _thread_id;
48
49 EventEmitter(const JfrTicks& start_time, const JfrTicks& end_time);
50 ~EventEmitter();
51
52 void write_event(const ObjectSample* sample, EdgeStore* edge_store);
53 size_t write_events(ObjectSampler* sampler, EdgeStore* store, bool emit_all);
54
55 static void emit(ObjectSampler* sampler, int64_t cutoff_ticks, bool emit_all);
56};
57
58#endif // SHARE_JFR_LEAKPROFILER_CHECKPOINT_EVENTEMITTER_HPP
59