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1   /*
2    * Copyright 2016 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.buffer;
17  
18  import io.netty.util.internal.PlatformDependent;
19  
20  import java.nio.ByteBuffer;
21  
22  class UnpooledUnsafeNoCleanerDirectByteBuf extends UnpooledUnsafeDirectByteBuf {
23  
24      UnpooledUnsafeNoCleanerDirectByteBuf(ByteBufAllocator alloc, int initialCapacity, int maxCapacity,
25                                           boolean allowSectionedInternalNioBufferAccess) {
26          super(alloc, initialCapacity, maxCapacity, allowSectionedInternalNioBufferAccess);
27      }
28  
29      @Override
30      protected ByteBuffer allocateDirect(int initialCapacity) {
31          return PlatformDependent.allocateDirectNoCleaner(initialCapacity);
32      }
33  
34      ByteBuffer reallocateDirect(ByteBuffer oldBuffer, int initialCapacity) {
35          return PlatformDependent.reallocateDirectNoCleaner(oldBuffer, initialCapacity);
36      }
37  
38      @Override
39      protected void freeDirect(ByteBuffer buffer) {
40          PlatformDependent.freeDirectNoCleaner(buffer);
41      }
42  
43      @Override
44      public ByteBuf capacity(int newCapacity) {
45          checkNewCapacity(newCapacity);
46  
47          int oldCapacity = capacity();
48          if (newCapacity == oldCapacity) {
49              return this;
50          }
51  
52          trimIndicesToCapacity(newCapacity);
53          setByteBuffer(reallocateDirect(buffer, newCapacity), false);
54          return this;
55      }
56  }