39 lines
963 B
C#
39 lines
963 B
C#
using System;
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using MECF.Framework.Common.Communications.Tcp.Socket.Framing.Base;
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namespace MECF.Framework.Common.Communications.Tcp.Socket.Framing
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{
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public sealed class FixedLengthFrameDecoder : IFrameDecoder
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{
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private readonly int _fixedFrameLength;
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public int FixedFrameLength => _fixedFrameLength;
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public FixedLengthFrameDecoder(int fixedFrameLength)
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{
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if (fixedFrameLength <= 0)
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{
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throw new ArgumentOutOfRangeException("fixedFrameLength");
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}
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_fixedFrameLength = fixedFrameLength;
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}
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public bool TryDecodeFrame(byte[] buffer, int offset, int count, out int frameLength, out byte[] payload, out int payloadOffset, out int payloadCount)
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{
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frameLength = 0;
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payload = null;
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payloadOffset = 0;
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payloadCount = 0;
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if (count < FixedFrameLength)
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{
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return false;
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}
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frameLength = FixedFrameLength;
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payload = buffer;
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payloadOffset = offset;
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payloadCount = FixedFrameLength;
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return true;
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}
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}
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}
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