2 * Copyright (C) 2015 - EfficiOS Inc., Alexandre Montplaisir <alexmonthy@efficios.com>
3 * Copyright (C) 2013 - David Goulet <dgoulet@efficios.com>
5 * This library is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU Lesser General Public License, version 2.1 only,
7 * as published by the Free Software Foundation.
9 * This library 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 Lesser General Public License
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this library; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 package org
.lttng
.ust
.agent
.client
;
21 import java
.nio
.ByteBuffer
;
22 import java
.nio
.ByteOrder
;
24 import org
.lttng
.ust
.agent
.client
.SessiondCommand
.CommandType
;
27 * Header of session daemon commands.
29 * @author Alexandre Montplaisir
30 * @author David Goulet
32 class SessiondCommandHeader
{
34 /** ABI size of command header. */
35 public static final int HEADER_SIZE
= 16;
37 /** Payload size in bytes following this header. */
38 private final long dataSize
;
41 private final CommandType cmd
;
43 public SessiondCommandHeader(byte[] data
) {
44 ByteBuffer buf
= ByteBuffer
.wrap(data
);
45 buf
.order(ByteOrder
.BIG_ENDIAN
);
47 dataSize
= buf
.getLong();
48 cmd
= CommandType
.values()[buf
.getInt() - 1];
49 buf
.getInt(); // command version, currently unused
52 public long getDataSize() {
56 public CommandType
getCommandType() {
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