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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 2014 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.epoll;

import io.netty.buffer.CompositeByteBuf;
import io.netty.channel.ChannelOutboundBuffer;
import io.netty.util.concurrent.FastThreadLocal;

/**
 * Allow to obtain {@link IovArray} instances.
 */
final class IovArrayThreadLocal {

    private static final FastThreadLocal ARRAY = new FastThreadLocal() {
        @Override
        protected IovArray initialValue() throws Exception {
            return new IovArray();
        }

        @Override
        protected void onRemoval(IovArray value) throws Exception {
            // free the direct memory now
            value.release();
        }
    };

    /**
     * Returns a {@link IovArray} which is filled with the flushed messages of {@link ChannelOutboundBuffer}.
     */
    static IovArray get(ChannelOutboundBuffer buffer) throws Exception {
        IovArray array = ARRAY.get();
        array.clear();
        buffer.forEachFlushedMessage(array);
        return array;
    }

    /**
     * Returns a {@link IovArray} which is filled with the {@link CompositeByteBuf}.
     */
    static IovArray get(CompositeByteBuf buf) throws Exception {
        IovArray array = ARRAY.get();
        array.clear();
        array.add(buf);
        return array;
    }

    private IovArrayThreadLocal() { }
}