private static UIntPtr WriteCallback(IntPtr pointer, UIntPtr size, UIntPtr nmemb, Curl curl)
{
int length = (int)size * (int)nmemb;
if (curl._buffer.Length < curl._offset + length)
{
Array.Resize(ref curl._buffer, Math.Max(2 * curl._buffer.Length, curl._offset + length));
}
Marshal.Copy(pointer, curl._buffer, curl._offset, length);
curl._offset += length;
return(new UIntPtr((uint)length));
}
internal static extern CurlCode EasySetOpt(IntPtr handle, CurlOption option, Curl value);