QNX 6.1 - Network Message Passing
I am trying to get message passing working over a local network with open()
and/or ConnectAttach(). Using ConnectAttach() (and MsgSend, MsgReceive…)
I can set up a simple server/client on one pc, but cannot get it working
over a
local network.
Here are my settings:
- local pc = strider, IP = 192.168.2.18
- remote pc = rivendell, IP = 192.168.2.19
- I can ping, ssh, etc between pc’s
- start qnet, io-net:
io-net -p qnet mount=:,resolve=dns - mount command returns:
/net/strider.myco.priv/dev/hd0t79 on / type qnx4 - the /etc/hosts file includes:
192.168.2.19 rivendell
NOTE: rivendell is configured similarly
I have a /net directory (empty)
When I run sample client/server apps on one machine, everything works fine
(using ConnectAttach(), MsgSend(), …) but when I try it or the
following simple
app (from Rob Krten’s QNX Neutrino 2 book):
#include <sys/neutrino.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/netmgr.h>
int main(void) {
int remote_nd; // node descriptor of target machine (rivendell)
int rivendell_nd; // rivendell’s node id for us (strider)
rivendell_nd = netmgr_strtond("/net/rivendell", NULL);
printf (“rivendell’s ND is %d\n”, rivendell_nd);
// remote_nd = netmgr_remote_nd(rivendell_nd, ND_LOCAL_NODE);
remote_nd = netmgr_remote_nd(rivendell_nd, 0);
printf(“From rivendell’s point of view, we’re ND %d\n”,
remote_nd);
return (EXIT_SUCCESS);
}
… nothing happens.
When I try the ConnectAttach() apps, nothing happens. I’ve read through
the book and the help docs, but can’t get anywhere.
Any help / ideas would be greatly appreciated.
Thanks
Ron
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