377dcd10b9
Former-commit-id:9f19e3f712[formerly9f19e3f712[formerly 64fa9254b946eae7e61bbc3f513b7c3696c4f54f]] Former-commit-id:06a8b51d6dFormer-commit-id:3360eb6c5f
86 lines
2.4 KiB
C#
86 lines
2.4 KiB
C#
/*
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*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*
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*/
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using System;
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namespace Apache.Qpid.Buffer
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{
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internal sealed class SlicedByteBuffer : ByteBuffer
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{
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private ByteBuffer _buffer;
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private int _capacity;
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private int _startPos;
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public override int Capacity
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{
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get { return _capacity; }
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}
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public override byte[] Array
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{
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get { return _buffer.Array; }
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}
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/// <summary>
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/// Initialize a new instance
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/// </summary>
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/// <param name="buffer">Underlying byte buffer</param>
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internal SlicedByteBuffer(ByteBuffer buffer)
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{
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_buffer = buffer;
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_startPos = buffer.Position;
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Position = 0;
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_capacity = buffer.Remaining;
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Limit = Capacity;
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// cannot autoexpand
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IsAutoExpand = false;
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}
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protected override void DoWrite(int position, byte value)
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{
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_buffer.Put(_startPos + position, value);
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}
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protected override void DoWrite(int position, byte[] src, int offset, int length)
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{
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_buffer.Put(_startPos + position, src, offset, length);
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}
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protected override byte DoReadByte(int position)
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{
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return _buffer.GetByte(_startPos + position);
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}
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protected override void DoReadBytes(int position, byte[] dest, int offset, int length)
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{
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_buffer.GetBytes(_startPos + position, dest, offset, length);
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}
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protected override void DoCompact()
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{
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throw new NotSupportedException();
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}
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protected override void DoResize(int newSize)
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{
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throw new NotSupportedException();
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}
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} // class SlicedByteBuffer
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}
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