import org.apache.tomcat.jni.Library; //导入依赖的package包/类
private long createAprSocket(int port, long pool)
             throws Exception {
    /**
     * Server socket "pointer".
     */
    long serverSock = 0;

    String address = InetAddress.getByName("localhost").getHostAddress();

    // Create the APR address that will be bound
    int family = Socket.APR_INET;
    if (Library.APR_HAVE_IPV6) {
        if (!OS.IS_BSD && !OS.IS_WIN32 && !OS.IS_WIN64)
            family = Socket.APR_UNSPEC;
     }

    long inetAddress = 0;
    try {
        inetAddress = Address.info(address, family,
                                   port, 0, pool);
        // Create the APR server socket
        serverSock = Socket.create(Address.getInfo(inetAddress).family,
                                   Socket.SOCK_STREAM,
                                   Socket.APR_PROTO_TCP, pool);
    } catch (Exception ex) {
        log.error("Could not create socket for address '" + address + "'");
        return 0;
    }

    if (OS.IS_UNIX) {
        Socket.optSet(serverSock, Socket.APR_SO_REUSEADDR, 1);
    }
    // Deal with the firewalls that tend to drop the inactive sockets
    Socket.optSet(serverSock, Socket.APR_SO_KEEPALIVE, 1);
    // Bind the server socket
    int ret = Socket.bind(serverSock, inetAddress);
    if (ret != 0) {
        log.error("Could not bind: " + Error.strerror(ret));
        throw (new Exception(Error.strerror(ret)));
    }
    return serverSock;
}
 

import org.apache.tomcat.jni.Library; //导入依赖的package包/类
private long createAprSocket(int port, long pool) 
             throws Exception {
    /**
     * Server socket "pointer".
     */
    long serverSock = 0;

    String address = null;
    // Create the APR address that will be bound
    int family = Socket.APR_INET;
    if (Library.APR_HAVE_IPV6) {
        if (!OS.IS_BSD && !OS.IS_WIN32 && !OS.IS_WIN64)
            family = Socket.APR_UNSPEC;
     }

    long inetAddress = 0;
    try {
        inetAddress = Address.info(address, family,
                                   port, 0, pool);
        // Create the APR server socket
        serverSock = Socket.create(Address.getInfo(inetAddress).family,
                                   Socket.SOCK_STREAM,
                                   Socket.APR_PROTO_TCP, pool);
    } catch (Exception ex) {
        log.error("Could not create socket for address '" + address + "'");
        return 0;
    }

    if (OS.IS_UNIX) {
        Socket.optSet(serverSock, Socket.APR_SO_REUSEADDR, 1);
    }
    // Deal with the firewalls that tend to drop the inactive sockets
    Socket.optSet(serverSock, Socket.APR_SO_KEEPALIVE, 1);
    // Bind the server socket
    int ret = Socket.bind(serverSock, inetAddress);
    if (ret != 0) {
        log.error("Could not bind: " + Error.strerror(ret));
        throw (new Exception(Error.strerror(ret)));
    }
    return serverSock;
}