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This artifact provides a single jar that contains all classes required to use remote Jakarta Enterprise Beans and Jakarta Messaging, including all dependencies. It is intended for use by those not using maven, maven users should just import the Jakarta Enterprise Beans and Jakarta Messaging BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2016 The Netty Project
 *
 * The Netty Project 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 io.netty.channel.kqueue;

import io.netty.channel.DefaultFileRegion;
import io.netty.channel.unix.PeerCredentials;
import io.netty.channel.unix.Socket;

import java.io.IOException;

import static io.netty.channel.kqueue.AcceptFilter.PLATFORM_UNSUPPORTED;
import static io.netty.channel.unix.Errors.ioResult;

/**
 * A socket which provides access BSD native methods.
 */
final class BsdSocket extends Socket {

    // These limits are just based on observations. I couldn't find anything in header files which formally
    // define these limits.
    private static final int APPLE_SND_LOW_AT_MAX = 1 << 17;
    private static final int FREEBSD_SND_LOW_AT_MAX = 1 << 15;
    static final int BSD_SND_LOW_AT_MAX = Math.min(APPLE_SND_LOW_AT_MAX, FREEBSD_SND_LOW_AT_MAX);

    BsdSocket(int fd) {
        super(fd);
    }

    void setAcceptFilter(AcceptFilter acceptFilter) throws IOException {
        setAcceptFilter(intValue(), acceptFilter.filterName(), acceptFilter.filterArgs());
    }

    void setTcpNoPush(boolean tcpNoPush) throws IOException {
        setTcpNoPush(intValue(), tcpNoPush ? 1 : 0);
    }

    void setSndLowAt(int lowAt) throws IOException {
        setSndLowAt(intValue(), lowAt);
    }

    boolean isTcpNoPush() throws IOException  {
        return getTcpNoPush(intValue()) != 0;
    }

    int getSndLowAt() throws IOException {
        return getSndLowAt(intValue());
    }

    AcceptFilter getAcceptFilter() throws IOException {
        String[] result = getAcceptFilter(intValue());
        return result == null ? PLATFORM_UNSUPPORTED : new AcceptFilter(result[0], result[1]);
    }

    PeerCredentials getPeerCredentials() throws IOException {
        return getPeerCredentials(intValue());
    }

    long sendFile(DefaultFileRegion src, long baseOffset, long offset, long length) throws IOException {
        // Open the file-region as it may be created via the lazy constructor. This is needed as we directly access
        // the FileChannel field via JNI.
        src.open();

        long res = sendFile(intValue(), src, baseOffset, offset, length);
        if (res >= 0) {
            return res;
        }
        return ioResult("sendfile", (int) res);
    }

    public static BsdSocket newSocketStream() {
        return new BsdSocket(newSocketStream0());
    }

    public static BsdSocket newSocketDgram() {
        return new BsdSocket(newSocketDgram0());
    }

    public static BsdSocket newSocketDomain() {
        return new BsdSocket(newSocketDomain0());
    }

    private static native long sendFile(int socketFd, DefaultFileRegion src, long baseOffset,
                                        long offset, long length) throws IOException;

    private static native String[] getAcceptFilter(int fd) throws IOException;
    private static native int getTcpNoPush(int fd) throws IOException;
    private static native int getSndLowAt(int fd) throws IOException;
    private static native PeerCredentials getPeerCredentials(int fd) throws IOException;

    private static native void setAcceptFilter(int fd, String filterName, String filterArgs) throws IOException;
    private static native void setTcpNoPush(int fd, int tcpNoPush) throws IOException;
    private static native void setSndLowAt(int fd, int lowAt) throws IOException;
}