1 /*
 2  * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
 3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 4  *
 5  * This code is free software; you can redistribute it and/or modify it
 6  * under the terms of the GNU General Public License version 2 only, as
 7  * published by the Free Software Foundation.  Oracle designates this
 8  * particular file as subject to the "Classpath" exception as provided
 9  * by Oracle in the LICENSE file that accompanied this code.
10  *
11  * This code is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14  * version 2 for more details (a copy is included in the LICENSE file that
15  * accompanied this code).
16  *
17  * You should have received a copy of the GNU General Public License version
18  * 2 along with this work; if not, write to the Free Software Foundation,
19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20  *
21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22  * or visit www.oracle.com if you need additional information or have any
23  * questions.
24  */
25 
26 package sun.nio.ch.iouring;
27 
28 /**
29  * Completion Q entry (user view)
30  *
31  * @param user_data the same value that was supplied in the {@link Sqe}
32  *                  that was submitted with IOUringImpl#submit(Sqe)}
33  *
34  * @param res if {@code res >=0} signifies success, {@code res < 0}
35  *            means error occurred where -res == errno
36  * @param flags
37  */
38 public record Cqe(long user_data, int res, int flags) {
39     public String toString() {
40         return "[user_data: " + String.format("0x%X ", user_data)
41                 + "res: " + res + " flags: " + flags + "]";
42     }
43 };