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java/org/apache/tomcat/jni/Multicast.java

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+/*
+ *  Licensed to the Apache Software Foundation (ASF) under one or more
+ *  contributor license agreements.  See the NOTICE file distributed with
+ *  this work for additional information regarding copyright ownership.
+ *  The ASF licenses this file to You under the Apache License, Version 2.0
+ *  (the "License"); you may not use this file except in compliance with
+ *  the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+package org.apache.tomcat.jni;
+
+/** Multicast
+ *
+ * @author Mladen Turk
+ */
+public class Multicast {
+
+    /**
+     * Join a Multicast Group
+     * @param sock The socket to join a multicast group
+     * @param join The address of the multicast group to join
+     * @param iface Address of the interface to use.  If NULL is passed, the
+     *              default multicast interface will be used. (OS Dependent)
+     * @param source Source Address to accept transmissions from (non-NULL
+     *               implies Source-Specific Multicast)
+     * @return the operation status
+     */
+    public static native int join(long sock, long join,
+                                  long iface, long source);
+
+    /**
+     * Leave a Multicast Group.  All arguments must be the same as
+     * apr_mcast_join.
+     * @param sock The socket to leave a multicast group
+     * @param addr The address of the multicast group to leave
+     * @param iface Address of the interface to use.  If NULL is passed, the
+     *              default multicast interface will be used. (OS Dependent)
+     * @param source Source Address to accept transmissions from (non-NULL
+     *               implies Source-Specific Multicast)
+     * @return the operation status
+     */
+    public static native int leave(long sock, long addr,
+                                   long iface, long source);
+
+    /**
+     * Set the Multicast Time to Live (ttl) for a multicast transmission.
+     * @param sock The socket to set the multicast ttl
+     * @param ttl Time to live to Assign. 0-255, default=1
+     * <br><b>Remark :</b> If the TTL is 0, packets will only be seen
+     * by sockets on the local machine,
+     * and only when multicast loopback is enabled.
+     * @return the operation status
+     */
+    public static native int hops(long sock, int ttl);
+
+    /**
+     * Toggle IP Multicast Loopback
+     * @param sock The socket to set multicast loopback
+     * @param opt false=disable, true=enable
+     * @return the operation status
+     */
+    public static native int loopback(long sock, boolean opt);
+
+
+    /**
+     * Set the Interface to be used for outgoing Multicast Transmissions.
+     * @param sock The socket to set the multicast interface on
+     * @param iface Address of the interface to use for Multicast
+     * @return the operation status
+     */
+    public static native int ointerface(long sock, long iface);
+
+}