/// <summary>
/// Begin encoding headers in the first HEADERS frame.
/// </summary>
public static bool BeginEncodeHeaders(int statusCode, IEnumerator <KeyValuePair <string, string> > headersEnumerator, Span <byte> buffer, out int length)
{
if (!HPackEncoder.EncodeStatusHeader(statusCode, buffer, out var statusCodeLength))
{
throw new HPackEncodingException(SR.net_http_hpack_encode_failure);
}
if (!headersEnumerator.MoveNext())
{
length = statusCodeLength;
return(true);
}
// We're ok with not throwing if no headers were encoded because we've already encoded the status.
// There is a small chance that the header will encode if there is no other content in the next HEADERS frame.
var done = EncodeHeaders(headersEnumerator, buffer.Slice(statusCodeLength), throwIfNoneEncoded: false, out var headersLength);
length = statusCodeLength + headersLength;
return(done);
}
