A Dijous 05 Abril 2007 19:30, Jan Kiszka va escriure:
> Leopold Palomo-Avellaneda wrote:
> > Hi,
> >
> > probably I'm doing some big mistake but I'm a bit lost in a trouble with
> > rtnet. I have rtnet compiled, installed and running without rtmac/tdma.
> >
> > I have configured the interface and the routes:
> >
> > $:~/robotica/orocos/rtnet-proves$ sudo /usr/local/rtnet/sbin/rtifconfig
> > rteth0 Medium: Ethernet Hardware address: 00:A0:C9:1D:52:B9
> > IP address: 192.168.1.3 Broadcast address: 192.168.1.255
> > UP BROADCAST RUNNING MTU: 1500
> >
> > rtlo Medium: Local Loopback
> > IP address: 127.0.0.1
> > UP LOOPBACK RUNNING MTU: 1500
> >
> > $:~/robotica/orocos/rtnet-proves$ sudo /usr/local/rtnet/sbin/rtroute
> > Host Routing Table
> > Hash Destination HW Address Device
> > 00 0.0.0.0 00:00:00:00:00:00 rtlo
> > 01 127.0.0.1 00:00:00:00:00:00 rtlo
> > 03 192.168.1.3 00:00:00:00:00:00 rtlo
> > 3F 192.168.1.255 FF:FF:FF:FF:FF:FF rteth0
> >
> >
> > I can do a ping to my rteth0:
> > $:~/robotica/orocos/rtnet-proves$ sudo /usr/local/rtnet/sbin/rtping
> > 192.168.1.3
> > Real-time PING 192.168.1.3 56(84) bytes of data.
> > 64 bytes from 127.0.0.1: icmp_seq=1 time=22.9 us
> > 64 bytes from 127.0.0.1: icmp_seq=2 time=14.0 us
> > .....
> >
> > if I run the examples of the rtai directory, both run. However I don't
> > see the expected result because the server run:
> > $:~/robotica/orocos$ sudo /usr/local/rtnet/examples/rtai/simpleserver
> > 5000 RTnet, simpleserver for LXRT
> >
> > and the client runs:
> > $:~/robotica/orocos/rtnet-proves$
> > sudo /usr/local/rtnet/examples/rtai/simpleclient 5001 192.168.1.3 5000
> > RTnet, simpleclient for LXRT
> >
> > and exit and no message is printed in the server side.
> >
> > Someone could tell me how can I test what is wrong or what I'm doing bad?
>
> Not immediately. I must admit, the RTAI examples are in bad shape. I
> would start checking the return codes of all involved RTnet service
> requests. One of them should/must fail. Maybe the information which one
> and with what code will help.
ok, I had done it in a modified version of the examples. In the server
program, I added some printf to the return values of the functions, and so,
the important parts:
.....
char *a1;
a1= inet_ntoa(local_addr.sin_addr);
printf("Running the server in the ip: %s\n", a1 );
.....
this print:
Running the server in the ip: 0.0.0.0
..............
/* Switch over to hard realtime mode. */
rt_make_hard_real_time();
printf("Ret after the rt = %d \n", ret );
.........
this print:
Ret after the rt = 0
..........
/* Bind socket to local address specified as parameter. */
ret = rt_dev_bind(sockfd, (struct sockaddr *) &local_addr,
sizeof(struct sockaddr_in));
printf("Ret = %d \n", ret );
...........
here, the print:
Ret = 0
so, I understand that open the socket without any problem
............
/* Block until packet is received. */
ret = rt_dev_recv(sockfd, msg, sizeof(msg), 0);
...............
but the program is blocked here.
In the client side:
sudo ./simpleclient 5001 127.0.0.1 5000
RTnet, simpleclient for LXRT
The connection says : 0
.............
/* Bind socket to local address specified as parameter. */
ret = rt_dev_bind(sockfd, (struct sockaddr *) &local_addr,
sizeof(struct sockaddr_in));
printf("Ret after the rt_dev_bind = %d \n", ret );
...........
print:
Ret after the rt_dev_bind = 0
......................
/* Specify destination address for socket; needed for rt_socket_send(). */
int value = rt_dev_connect(sockfd, (struct sockaddr *) &server_addr,
sizeof(struct sockaddr_in));
printf("The connection says : %i\n", value);
..................
The connection says : 0
really I'm blocked now ....
> BTW, I'm always open to apply cleanup patches for the RTAI examples, or
> new and better ones. But I depend on RTAI users here, I don't have that
> test environment anymore.
Ok, I take note.
regards,
Leo
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