public void Should_encode_szx()
{
var szx1 = BlockOption.EncodeSzx(16);
var szx2 = BlockOption.EncodeSzx(1024);
Assert.AreEqual(0, szx1);
Assert.AreEqual(6, szx2);
}
public void Should_construct_block2_option()
{
var option = new BlockOption(OptionNumber.Block2, 2, 0, BlockOption.EncodeSzx(32));
Assert.AreEqual(33, ByteConverter.GetInt(option.Value));
Assert.AreEqual(2, option.Num);
Assert.AreEqual(0, option.M);
Assert.AreEqual(32, BlockOption.DecodeSzx(option.Szx));
}
public void Should_construct_block1_option()
{
var option = new BlockOption(OptionNumber.Block1, 3, 1, BlockOption.EncodeSzx(128));
Assert.AreEqual(59, ByteConverter.GetInt(option.Value));
Assert.AreEqual(3, option.Num);
Assert.AreEqual(1, option.M);
Assert.AreEqual(128, BlockOption.DecodeSzx(option.Szx));
}
public static Response Simple_atomic_blockwise_put_response(int num)
{
var m = num < 2 ? 1 : 0;
var response = new Response(MessageType.Acknowledgement, CodeRegistry.Changed)
{
Id = 1234, Token = ByteConverter.GetBytes(0x17)
};
response.AddOption(new BlockOption(OptionNumber.Block1, num, m, BlockOption.EncodeSzx(128)));
return(response);
}
public TransferLayer(ILayer lowerLayer, int blockSize)
: base(lowerLayer)
{
_tokenManager = new TokenManager();
_incomplete = new Dictionary <string, Message>();
if (blockSize > 0)
{
_szx = BlockOption.EncodeSzx(blockSize);
}
}
// example 2 (figure 3): Blockwise GET with early negotiation
public static Request Blockwise_get_with_early_negotiation(int num)
{
var id = 1234 + num;
var uri = new Uri("coap://server/status");
var request = new Request(CodeRegistry.Get, true)
{
Id = id, Uri = uri
};
request.AddOption(new BlockOption(OptionNumber.Block2, num, 0, BlockOption.EncodeSzx(64)));
return(request);
}
public static Response Simple_blockwise_get_block(int num)
{
var id = 1234 + num;
var m = num < 2 ? 1 : 0;
var block = new Response(MessageType.Acknowledgement, CodeRegistry.Content)
{
Id = id, Payload = new byte[128]
};
block.AddOption(new BlockOption(OptionNumber.Block2, num, m, BlockOption.EncodeSzx(128)));
return(block);
}
