/// <summary>
/// Reads bytes from the stream.
/// </summary>
/// <param name="stream">The stream.</param>
/// <param name="buffer">The buffer.</param>
/// <param name="offset">The offset.</param>
/// <param name="count">The count.</param>
public static void ReadBytes(this BsonStream stream, byte[] buffer, int offset, int count)
{
if (stream == null)
{
throw new ArgumentNullException("stream");
}
if (buffer == null)
{
throw new ArgumentNullException("buffer");
}
if (offset < 0 || offset > buffer.Length)
{
throw new ArgumentOutOfRangeException("offset");
}
if (count < 0 || offset + count > buffer.Length)
{
throw new ArgumentOutOfRangeException("count");
}
if (count == 1)
{
var b = stream.ReadByte();
if (b == -1)
{
throw new EndOfStreamException();
}
buffer[offset] = (byte)b;
}
else
{
while (count > 0)
{
var bytesRead = stream.Read(buffer, offset, count);
if (bytesRead == 0)
{
throw new EndOfStreamException();
}
offset += bytesRead;
count -= bytesRead;
}
}
}
