public static int GetMediumLE(this IByteBuffer buf, int index) { uint value = (uint)buf.GetUnsignedMediumLE(index); if ((value & 0x800000) != 0) { value |= 0xff000000; } return((int)value); }
/// <summary> /// Decodes the specified region of the buffer into an unadjusted frame length. The default implementation is /// capable of decoding the specified region into an unsigned 8/16/24/32/64 bit integer. Override this method to /// decode the length field encoded differently. /// Note that this method must not modify the state of the specified buffer (e.g. /// <see cref="IByteBuffer.ReaderIndex" />, /// <see cref="IByteBuffer.WriterIndex" />, and the content of the buffer.) /// </summary> /// <param name="buffer">The buffer we'll be extracting the frame length from.</param> /// <param name="offset">The offset from the absolute <see cref="IByteBuffer.ReaderIndex" />.</param> /// <param name="length">The length of the framelenght field. Expected: 1, 2, 3, 4, or 8.</param> /// <param name="order">The preferred <see cref="ByteOrder" /> of buffer.</param> /// <returns>A long integer that represents the unadjusted length of the next frame.</returns> protected long GetUnadjustedFrameLength(IByteBuffer buffer, int offset, int length, ByteOrder order) { long frameLength; switch (length) { case 1: frameLength = buffer.GetByte(offset); break; case 2: frameLength = order == ByteOrder.BigEndian ? buffer.GetUnsignedShort(offset) : buffer.GetUnsignedShortLE(offset); break; case 3: frameLength = order == ByteOrder.BigEndian ? buffer.GetUnsignedMedium(offset) : buffer.GetUnsignedMediumLE(offset); break; case 4: frameLength = order == ByteOrder.BigEndian ? buffer.GetInt(offset) : buffer.GetIntLE(offset); break; case 8: frameLength = order == ByteOrder.BigEndian ? buffer.GetLong(offset) : buffer.GetLongLE(offset); break; default: throw new DecoderException("unsupported lengthFieldLength: " + this.lengthFieldLength + " (expected: 1, 2, 3, 4, or 8)"); } byte[] bytes = BitConverter.GetBytes(frameLength); string slength = Encoding.UTF8.GetString(bytes); frameLength = long.Parse(slength); return(frameLength); }
public virtual int GetUnsignedMediumLE(int index) => Buf.GetUnsignedMediumLE(index);
/// <summary> /// Decodes the specified region of the buffer into an unadjusted frame length. The default implementation is /// capable of decoding the specified region into an unsigned 8/16/24/32/64 bit integer. Override this method to /// decode the length field encoded differently. /// Note that this method must not modify the state of the specified buffer (e.g. /// <see cref="IByteBuffer.ReaderIndex" />, /// <see cref="IByteBuffer.WriterIndex" />, and the content of the buffer.) /// </summary> /// <param name="buffer">The buffer we'll be extracting the frame length from.</param> /// <param name="offset">The offset from the absolute <see cref="IByteBuffer.ReaderIndex" />.</param> /// <param name="length">The length of the framelenght field. Expected: 1, 2, 3, 4, or 8.</param> /// <param name="order">The preferred <see cref="ByteOrder" /> of buffer.</param> /// <returns>A long integer that represents the unadjusted length of the next frame.</returns> protected virtual long GetUnadjustedFrameLength(IByteBuffer buffer, int offset, int length, ByteOrder order) { long frameLength; switch (length) { case 1: frameLength = buffer.GetByte(offset); break; case 2: frameLength = order == ByteOrder.BigEndian ? buffer.GetUnsignedShort(offset) : buffer.GetUnsignedShortLE(offset); break; case 3: frameLength = order == ByteOrder.BigEndian ? buffer.GetUnsignedMedium(offset) : buffer.GetUnsignedMediumLE(offset); break; case 4: frameLength = order == ByteOrder.BigEndian ? buffer.GetInt(offset) : buffer.GetIntLE(offset); break; case 8: frameLength = order == ByteOrder.BigEndian ? buffer.GetLong(offset) : buffer.GetLongLE(offset); break; default: throw new DecoderException("unsupported lengthFieldLength: " + this.lengthFieldLength + " (expected: 1, 2, 3, 4, or 8)"); } return(frameLength); }
public int GetUnsignedMediumLE(int index) { CheckIndex(index, 3); return(_buffer.GetUnsignedMediumLE(index)); }
/// <summary> /// Decodes the specified region of the buffer into an unadjusted frame length. The default implementation is /// capable of decoding the specified region into an unsigned 8/16/24/32/64 bit integer. Override this method to /// decode the length field encoded differently. /// Note that this method must not modify the state of the specified buffer (e.g. /// <see cref="IByteBuffer.ReaderIndex" />, /// <see cref="IByteBuffer.WriterIndex" />, and the content of the buffer.) /// </summary> /// <param name="buffer">The buffer we'll be extracting the frame length from.</param> /// <param name="offset">The offset from the absolute <see cref="IByteBuffer.ReaderIndex" />.</param> /// <param name="length">The length of the framelenght field. Expected: 1, 2, 3, 4, or 8.</param> /// <param name="order">The preferred <see cref="ByteOrder" /> of buffer.</param> /// <returns>A long integer that represents the unadjusted length of the next frame.</returns> protected static long GetUnadjustedFrameLength(IByteBuffer buffer, int offset, int length, ByteOrder order) { return(length switch { 1 => buffer.GetByte(offset), 2 => order == ByteOrder.BigEndian ? buffer.GetUnsignedShort(offset) : buffer.GetUnsignedShortLE(offset), 3 => order == ByteOrder.BigEndian ? buffer.GetUnsignedMedium(offset) : buffer.GetUnsignedMediumLE(offset), 4 => order == ByteOrder.BigEndian ? buffer.GetInt(offset) : buffer.GetIntLE(offset), 8 => order == ByteOrder.BigEndian ? buffer.GetLong(offset) : buffer.GetLongLE(offset), _ => CThrowHelper.ThrowDecoderException(length), });