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/*
 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.libuv;

import static java.util.Objects.requireNonNull;

import java.util.EnumSet;

public class TCPHandle extends StreamHandle {

    TCPHandle(final LoopHandle loop) {
        super(_new(loop.pointer()), loop);
    }

    public int bind(final String  address,
                    final int     port,
                    final boolean ipv6) {
        return bind(address, port,
                    ipv6, EnumSet.noneOf(TcpFlags.class));
    }

    public int bind(final String      address,
                    final int         port,
                    final boolean     ipv6,
                    EnumSet flags) {
        requireNonNull(address);
        int flagValue = 0;
        for (TcpFlags next : flags) {
            flagValue |= next.value;
        }
        return bind(address, port,
                    ipv6, flagValue);
    }

    public int bind(final String  address,
                    final int     port,
                    final boolean ipv6,
                    final int     flags) {
        return _bind(pointer, address,
                     port, ipv6, flags);
    }

    public int connect(final String  address,
                       final int     port,
                       final boolean ipv6) {
        requireNonNull(address);
        return _connect(pointer, address,
                        port, loop.getContext(),
                        ipv6);
    }

    @Override
    public int listen(final int backlog) {
        return super.listen(backlog);
    }

    @Override
    public int accept(final StreamHandle client) {
        requireNonNull(client);
        assert client instanceof TCPHandle;
        final int accepted = super.accept(client);
        return accepted;
    }

    public Address getSocketName() {
        return _socket_name(pointer);
    }

    public Address getPeerName() {
        return _peer_name(pointer);
    }

    public int setNoDelay(final boolean enable) {
        return _no_delay(pointer, enable ? 1 : 0);
    }

    public int setKeepAlive(final boolean enable, final int delay) {
        return _keep_alive(pointer, enable ? 1 : 0, delay);
    }

    public int setSimultaneousAccepts(final boolean enable) {
        return _simultaneous_accepts(pointer, enable ? 1 : 0);
    }

    // ------------------------------------------------------------------------
    // ~ Native
    // ------------------------------------------------------------------------

    private static native long _new(final long loop);

    private native int _bind(final long    ptr,
                             final String  address,
                             final int     port,
                             final boolean ipv6,
                             final int     flags);

    private native int _connect(final long    ptr,
                                final String  address,
                                final int     port,
                                final Object  context,
                                final boolean ipv6);

    private native int _open(final long ptr,
                             final long socket);

    private native Address _socket_name(final long ptr);

    private native Address _peer_name(final long ptr);

    private native int _no_delay(final long ptr,
                                 final int enable);

    private native int _keep_alive(final long ptr,
                                   final int  enable,
                                   final int  delay);

    private native int _simultaneous_accepts(final long ptr,
                                             final int enable);
}