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1   /*
2    * Copyright 2015 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;
17  
18  /**
19   * {@link RecvByteBufAllocator} that limits the number of read operations that will be attempted when a read operation
20   * is attempted by the event loop.
21   */
22  public interface MaxMessagesRecvByteBufAllocator extends RecvByteBufAllocator {
23      /**
24       * Returns the maximum number of messages to read per read loop.
25       * a {@link ChannelInboundHandler#channelRead(ChannelHandlerContext, Object) channelRead()} event.
26       * If this value is greater than 1, an event loop might attempt to read multiple times to procure multiple messages.
27       */
28      int maxMessagesPerRead();
29  
30      /**
31       * Sets the maximum number of messages to read per read loop.
32       * If this value is greater than 1, an event loop might attempt to read multiple times to procure multiple messages.
33       */
34      MaxMessagesRecvByteBufAllocator maxMessagesPerRead(int maxMessagesPerRead);
35  }