01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: package org.apache.tomcat.jni;
19:
20: /** Multicast
21: *
22: * @author Mladen Turk
23: * @version $Revision: 467222 $, $Date: 2006-10-24 05:17:11 +0200 (mar., 24 oct. 2006) $
24: */
25:
26: public class Multicast {
27:
28: /**
29: * Join a Multicast Group
30: * @param sock The socket to join a multicast group
31: * @param join The address of the multicast group to join
32: * @param iface Address of the interface to use. If NULL is passed, the
33: * default multicast interface will be used. (OS Dependent)
34: * @param source Source Address to accept transmissions from (non-NULL
35: * implies Source-Specific Multicast)
36: */
37: public static native int join(long sock, long join, long iface,
38: long source);
39:
40: /**
41: * Leave a Multicast Group. All arguments must be the same as
42: * apr_mcast_join.
43: * @param sock The socket to leave a multicast group
44: * @param addr The address of the multicast group to leave
45: * @param iface Address of the interface to use. If NULL is passed, the
46: * default multicast interface will be used. (OS Dependent)
47: * @param source Source Address to accept transmissions from (non-NULL
48: * implies Source-Specific Multicast)
49: */
50: public static native int leave(long sock, long addr, long iface,
51: long source);
52:
53: /**
54: * Set the Multicast Time to Live (ttl) for a multicast transmission.
55: * @param sock The socket to set the multicast ttl
56: * @param ttl Time to live to Assign. 0-255, default=1
57: * <br /><b>Remark :</b> If the TTL is 0, packets will only be seen
58: * by sockets on the local machine,
59: * and only when multicast loopback is enabled.
60: */
61: public static native int hops(long sock, int ttl);
62:
63: /**
64: * Toggle IP Multicast Loopback
65: * @param sock The socket to set multicast loopback
66: * @param opt false=disable, true=enable
67: */
68: public static native int loopback(long sock, boolean opt);
69:
70: /**
71: * Set the Interface to be used for outgoing Multicast Transmissions.
72: * @param sock The socket to set the multicast interface on
73: * @param iface Address of the interface to use for Multicast
74: */
75: public static native int ointerface(long sock, long iface);
76:
77: }
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