1/*
2 * Copyright (c) 1996, 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.rmi.transport;
27
28public class TransportConstants {
29    /** Transport magic number: "JRMI"*/
30    public static final int Magic = 0x4a524d49;
31    /** Transport version number */
32    public static final short Version = 2;
33
34    /** Connection uses stream protocol */
35    public static final byte StreamProtocol = 0x4b;
36    /** Protocol for single operation per connection; no ack required */
37    public static final byte SingleOpProtocol = 0x4c;
38    /** Connection uses multiplex protocol */
39    public static final byte MultiplexProtocol = 0x4d;
40
41    /** Ack for transport protocol */
42    public static final byte ProtocolAck = 0x4e;
43    /** Negative ack for transport protocol (protocol not supported) */
44    public static final byte ProtocolNack = 0x4f;
45
46    /** RMI call */
47    public static final byte Call = 0x50;
48    /** RMI return */
49    public static final byte Return = 0x51;
50    /** Ping operation */
51    public static final byte Ping = 0x52;
52    /** Acknowledgment for Ping operation */
53    public static final byte PingAck = 0x53;
54    /** Acknowledgment for distributed GC */
55    public static final byte DGCAck = 0x54;
56
57    /** Normal return (with or without return value) */
58    public static final byte NormalReturn = 0x01;
59    /** Exceptional return */
60    public static final byte ExceptionalReturn = 0x02;
61}
62