1/*
2 * Copyright (c) 2012, 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.
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23 */
24
25#ifndef SHARE_JFR_RECORDER_REPOSITORY_JFRCHUNKWRITER_HPP
26#define SHARE_JFR_RECORDER_REPOSITORY_JFRCHUNKWRITER_HPP
27
28#include "jfr/writers/jfrStorageAdapter.hpp"
29#include "jfr/writers/jfrStreamWriterHost.inline.hpp"
30#include "jfr/writers/jfrWriterHost.inline.hpp"
31
32typedef MallocAdapter<M> JfrStreamBuffer; // 1 mb buffered writes
33typedef StreamWriterHost<JfrStreamBuffer, JfrCHeapObj> JfrBufferedStreamWriter;
34typedef WriterHost<BigEndianEncoder, CompressedIntegerEncoder, JfrBufferedStreamWriter> JfrChunkWriterBase;
35
36class JfrChunkState;
37
38class JfrChunkWriter : public JfrChunkWriterBase {
39 friend class JfrRepository;
40 private:
41 JfrChunkState* _chunkstate;
42
43 bool open();
44 size_t close(int64_t metadata_offset);
45 void write_header(int64_t metadata_offset);
46 void set_chunk_path(const char* chunk_path);
47
48 public:
49 JfrChunkWriter();
50 bool initialize();
51 int64_t size_written() const;
52 int64_t previous_checkpoint_offset() const;
53 void set_previous_checkpoint_offset(int64_t offset);
54 void time_stamp_chunk_now();
55};
56
57#endif // SHARE_JFR_RECORDER_REPOSITORY_JFRCHUNKWRITER_HPP
58