/// <summary>
/// Reads a uuid (16-bytes) from the buffer and advance the buffer read cursor.
/// </summary>
/// <param name="buffer">The buffer to read from.</param>
/// <returns></returns>
public static Guid ReadUuid(ByteBuffer buffer)
{
buffer.ValidateRead(FixedWidth.Uuid);
byte[] d = new byte[FixedWidth.Uuid];
if (AmqpBitConverter.IsLittleEndian)
{
int pos = buffer.Offset;
d[3] = buffer.Buffer[pos++];
d[2] = buffer.Buffer[pos++];
d[1] = buffer.Buffer[pos++];
d[0] = buffer.Buffer[pos++];
d[5] = buffer.Buffer[pos++];
d[4] = buffer.Buffer[pos++];
d[7] = buffer.Buffer[pos++];
d[6] = buffer.Buffer[pos++];
Array.Copy(buffer.Buffer, pos, d, 8, 8);
}
else
{
Array.Copy(buffer.Buffer, buffer.Offset, d, 0, FixedWidth.Uuid);
}
buffer.Complete(FixedWidth.Uuid);
return(new Guid(d));
}
/// <summary>
/// Reads a 32-bit signed integer and advance the buffer read cursor.
/// </summary>
/// <param name="buffer">The buffer to read from.</param>
/// <returns></returns>
public static int ReadInt(ByteBuffer buffer)
{
buffer.ValidateRead(FixedWidth.Int);
int data = ReadInt(buffer.Buffer, buffer.Offset);
buffer.Complete(FixedWidth.Int);
return(data);
}
/// <summary>
/// Reads a 16-bit signed integer and advance the buffer read cursor.
/// </summary>
/// <param name="buffer">The buffer to read from.</param>
/// <returns></returns>
public static short ReadShort(ByteBuffer buffer)
{
buffer.ValidateRead(FixedWidth.Short);
short data = (short)((buffer.Buffer[buffer.Offset] << 8) | buffer.Buffer[buffer.Offset + 1]);
buffer.Complete(FixedWidth.Short);
return(data);
}
/// <summary>
/// Reads a signed byte and advance the buffer read cursor.
/// </summary>
/// <param name="buffer">The buffer to read from.</param>
/// <returns></returns>
public static sbyte ReadByte(ByteBuffer buffer)
{
buffer.ValidateRead(FixedWidth.UByte);
sbyte data = (sbyte)buffer.Buffer[buffer.Offset];
buffer.Complete(FixedWidth.UByte);
return(data);
}
/// <summary>
/// Reads a 64-bit signed integer from the buffer and advance the buffer read cursor.
/// </summary>
/// <param name="buffer">The buffer to read from.</param>
/// <returns></returns>
public static long ReadLong(ByteBuffer buffer)
{
buffer.ValidateRead(FixedWidth.Long);
long high = ReadInt(buffer.Buffer, buffer.Offset);
long low = (uint)ReadInt(buffer.Buffer, buffer.Offset + 4);
long data = (high << 32) | low;
buffer.Complete(FixedWidth.Long);
return(data);
}
/// <summary>
/// Reads bytes from one buffer into another.
/// </summary>
/// <param name="buffer">Source buffer.</param>
/// <param name="data">Destination buffer</param>
/// <param name="offset">The start position to write.</param>
/// <param name="count">The number of bytes to read.</param>
public static void ReadBytes(ByteBuffer buffer, byte[] data, int offset, int count)
{
buffer.ValidateRead(count);
Array.Copy(buffer.Buffer, buffer.Offset, data, offset, count);
buffer.Complete(count);
}
