1 /*
2 * Copyright 2025 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 import io.netty.buffer.ByteBuf;
19
20 /**
21 * Allocator that is responsible to allocate buffers for a buffer ring.
22 */
23 public interface IoUringBufferRingAllocator {
24 /**
25 * Creates a new receive buffer to use by the buffer ring. The returned {@link ByteBuf} must be direct.
26 */
27 ByteBuf allocate();
28
29 /**
30 * Set the bytes that have been read for the last read operation that was full-filled out of the buffer ring.
31 *
32 * @param attempted the attempted bytes to read.
33 * @param actual the number of bytes that could be read.
34 */
35 void lastBytesRead(int attempted, int actual);
36 }