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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  
23      RingBuffer(SubmissionQueue ioUringSubmissionQueue, CompletionQueue ioUringCompletionQueue) {
24          this.ioUringSubmissionQueue = ioUringSubmissionQueue;
25          this.ioUringCompletionQueue = ioUringCompletionQueue;
26      }
27  
28      int fd() {
29          return ioUringCompletionQueue.ringFd;
30      }
31  
32      SubmissionQueue ioUringSubmissionQueue() {
33          return this.ioUringSubmissionQueue;
34      }
35  
36      CompletionQueue ioUringCompletionQueue() {
37          return this.ioUringCompletionQueue;
38      }
39  
40      void close() {
41          ioUringSubmissionQueue.release();
42          Native.ioUringExit(
43                  ioUringSubmissionQueue.submissionQueueArrayAddress,
44                  ioUringSubmissionQueue.ringEntries,
45                  ioUringSubmissionQueue.ringAddress,
46                  ioUringSubmissionQueue.ringSize,
47                  ioUringCompletionQueue.ringAddress,
48                  ioUringCompletionQueue.ringSize,
49                  ioUringCompletionQueue.ringFd);
50      }
51  }