/*
 *  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;

/**
 * Local socket.
 *
 * @author Mladen Turk
 */
public class Local {

    /**
     * Create a socket.
     * @param path The address of the new socket.
     * @param cont The parent pool to use
     * @return The new socket that has been set up.
     * @throws Exception If socket creation failed
     */
    public static native long create(String path, long cont)
        throws Exception;

    /**
     * Bind the socket to its associated port
     * @param sock The socket to bind
     * @param sa The socket address to bind to
     * This may be where we will find out if there is any other process
     *      using the selected port.
     * @return the operation status
     */
    public static native int bind(long sock, long sa);

    /**
     * Listen to a bound socket for connections.
     * @param sock The socket to listen on
     * @param backlog The number of outstanding connections allowed in the sockets
     *                listen queue.  If this value is less than zero, for NT pipes
     *                the number of instances is unlimited.
     * @return the operation status
     */
    public static native int listen(long sock, int backlog);

    /**
     * Accept a new connection request
     * @param sock The socket we are listening on.
     * @return  A copy of the socket that is connected to the socket that
     *          made the connection request.  This is the socket which should
     *          be used for all future communication.
     * @throws Exception If accept failed
     */
    public static native long accept(long sock)
        throws Exception;

    /**
     * Issue a connection request to a socket either on the same machine
     * or a different one.
     * @param sock The socket we wish to use for our side of the connection
     * @param sa The address of the machine we wish to connect to.
     *           Unused for NT Pipes.
     * @return the operation status
     */
    public static native int connect(long sock, long sa);

}