Hello everybody,
I was making some experiments to try to connect to SUMO and retrieving its data
with C#, but I have been experiencing some problems with one of the most basic
commands, which is performing a simulation step.
Looking at the documentation, I see I should send 10 bytes, right? this is: 4
bytes (integer) for the targetTime, which I want to be 0, so it only performs
one timestep, 1 byte for the identifier (0x02), 1 byte for command length (6),
and 4 bytes for the total length(10).
This, in an array of bytes, would be like: [0,0,0,10,6,2,0,0,0,0].
I made this simple code just to test it, but it doesn't work at all. I mean,
the connection with the server is done, but no timestep is performed and no
response is received from the server (rather than an ACK).
This is the code:
public static void step(NetworkStream bw, int j)
{
byte[] bytes = { 0, 0, 0, 10, 6, 2, 0, 0, 0, 0 };
bw.Write(bytes, 0, bytes.Length);
bw.Flush();
}
public static void Main(String[] argv)
{
Socket socket = new Socket(AddressFamily.InterNetwork,
SocketType.Stream, ProtocolType.Tcp);
socket.NoDelay = true;
try
{
socket.Connect(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 60634));
}
catch (Exception localConnectException)
{
Console.WriteLine(localConnectException.StackTrace.ToString());
}
NetworkStream ns = new NetworkStream(socket);
//BinaryWriter bw = new BinaryWriter(ns); (I tried with both,
BinaryWriter and NetworkStream and the result was the same
for (int i = 0; i < 100; i++)
{
step(ns,i);
}
}
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