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1   /*
2    * Copyright 2024 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   https://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  package io.netty.channel.uring;
17  
18  
19  final class RingBuffer {
20      private final SubmissionQueue ioUringSubmissionQueue;
21      private final CompletionQueue ioUringCompletionQueue;
22      private final int features;
23      RingBuffer(SubmissionQueue ioUringSubmissionQueue, CompletionQueue ioUringCompletionQueue, int features) {
24          this.ioUringSubmissionQueue = ioUringSubmissionQueue;
25          this.ioUringCompletionQueue = ioUringCompletionQueue;
26          this.features = features;
27      }
28  
29      int fd() {
30          return ioUringCompletionQueue.ringFd;
31      }
32  
33      int features() {
34          return features;
35      }
36  
37      SubmissionQueue ioUringSubmissionQueue() {
38          return this.ioUringSubmissionQueue;
39      }
40  
41      CompletionQueue ioUringCompletionQueue() {
42          return this.ioUringCompletionQueue;
43      }
44  
45      void close() {
46          ioUringSubmissionQueue.release();
47          Native.ioUringExit(
48                  ioUringSubmissionQueue.submissionQueueArrayAddress,
49                  ioUringSubmissionQueue.ringEntries,
50                  ioUringSubmissionQueue.ringAddress,
51                  ioUringSubmissionQueue.ringSize,
52                  ioUringCompletionQueue.ringAddress,
53                  ioUringCompletionQueue.ringSize,
54                  ioUringCompletionQueue.ringFd);
55      }
56  }