Hello,
I observed some thing really surprised me-
if i put a 10000 microsecond sleep between consecutive sendto() then
it sends any no of packets packets continuously.
while (test_time <=180000.0) //Test duration, In millisecond
{
bzero (buffer, 50);
strcpy(buffer, "hello server - xenomai");
n = sendto (sockfd, buffer, 50, 0, (struct sockaddr *) &serv_addr,
(socklen_t) sizeof (serv_addr));
usleep (10000);
if ( n < 0 )
{
perror ("ERROR, Sending Failed....\n");
exit (0);
}
}//end of while
--but if i dont give the usleep(), it sends only 16 packets. More over
if I use usleep(1000), then also after sending some messages the
program exits giving "ERROR, Sending Failed.... No buffer space
available".
Saiful
On 5/3/07, Jan Kiszka <[EMAIL PROTECTED]> wrote:
> Saiful Khan wrote:
> > Hello,
> >
> > I have a very simple client running on xenomai+rtnet, whish is simply
> > sending 50 byte message continuously to server and the server is
> > running on other linux system which is simply continuously receiving
> > it printing. RTmac/TDMA is active. rtping works fine.
>
> For more than 16 messages?
>
> >
> > But the client can able to send (sendto()) only 16 messages to server then
> > it
> > gives error: "No buffer space available".
> >
> > can you please tell me whats the reason.
>
> Ok, this looks a bit more tricky. Please check /proc/xenomai/irq during
> runtime of your test if there is the interrupt counter related to your
> RT-NIC driver (which driver, BTW?) is increasing. If it is not, your
> buffers get sent but will not return to the socket pool, thus you run
> into that error.
>
> Jan
>
>
>
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