IoUring.java — netty Source File

Source Code

/*
 * Copyright 2024 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:
 *
 *   https://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.uring;

import io.netty.buffer.ByteBuf;
import io.netty.channel.ChannelOption;
import io.netty.channel.unix.Buffer;
import io.netty.channel.unix.Limits;
import io.netty.util.internal.PlatformDependent;
import io.netty.util.internal.SystemPropertyUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.nio.ByteBuffer;

public final class IoUring {

    private static final Throwable UNAVAILABILITY_CAUSE;
    private static final boolean IORING_CQE_F_SOCK_NONEMPTY_SUPPORTED;
    private static final boolean IORING_SPLICE_SUPPORTED;
    private static final boolean IORING_SEND_ZC_SUPPORTED;
    private static final boolean IORING_SENDMSG_ZC_SUPPORTED;
    private static final boolean IORING_ACCEPT_NO_WAIT_SUPPORTED;
    private static final boolean IORING_ACCEPT_MULTISHOT_SUPPORTED;
    private static final boolean IORING_RECV_MULTISHOT_SUPPORTED;
    private static final boolean IORING_RECVSEND_BUNDLE_SUPPORTED;
    private static final boolean IORING_POLL_ADD_MULTISHOT_SUPPORTED;
    private static final boolean IORING_REGISTER_IOWQ_MAX_WORKERS_SUPPORTED;
    private static final boolean IORING_SETUP_SUBMIT_ALL_SUPPORTED;
    private static final boolean IORING_SETUP_CQE_MIXED_SUPPORTED;
    private static final boolean IORING_SETUP_CQ_SIZE_SUPPORTED;
    private static final boolean IORING_SETUP_SINGLE_ISSUER_SUPPORTED;
    private static final boolean IORING_SETUP_DEFER_TASKRUN_SUPPORTED;
    private static final boolean IORING_SETUP_NO_SQARRAY_SUPPORTED;
    private static final boolean IORING_REGISTER_BUFFER_RING_SUPPORTED;
    private static final boolean IORING_REGISTER_BUFFER_RING_INC_SUPPORTED;
    private static final boolean IORING_ACCEPT_MULTISHOT_ENABLED;
    private static final boolean IORING_RECV_MULTISHOT_ENABLED;
    private static final boolean IORING_RECVSEND_BUNDLE_ENABLED;
    private static final boolean IORING_POLL_ADD_MULTISHOT_ENABLED;
    static final int NUM_ELEMENTS_IOVEC;
    static final int DEFAULT_RING_SIZE;
    static final int DEFAULT_CQ_SIZE;
    static final int DISABLE_SETUP_CQ_SIZE = -1;

    private static final InternalLogger logger;

// ... (364 more lines)