fast rtps run on the qnx

[darbee]

Hi guys:
I have compiled FAST-RTPS for QNX , The step can find at:
https://github.com/eProsima/Fast-RTPS/issues/new

But In one machine which run on qnx system, I compiled a HelloWorld example to test FAST-RTPS.

The HelloWorld example can be found at
https://github.com/eProsima/Fast-RTPS/tree/master/examples/C%2B%2B/HelloWorldExample

I did not change anything in the example code.

In one console I run
./HelloWorldExample publisher

In another console I run
./HelloWorldExample Subscriber

But very sad. Nothing happened. They did not communicate with each other.

In my qnx machine , system info is

ifconfig

`root@# ifconfig
lo0: flags=ffff8049<UP,LOOPBACK,RUNNING,MULTICAST,IP6FORWARDING,ACCEPTRTADV,SHIM> mtu 33136

 inet 127.0.0.1 netmask 0xff000000
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
    ravb0: flags=8a43<UP,BROADCAST,RUNNING,ALLMULTI,SIMPLEX,MULTICAST> mtu 1500
    address: 4a:3b:83:03:38:36
media: Ethernet autoselect (1000baseT full-duplex)
status: active
inet 172.20.102.35 netmask 0xffffff00 broadcast 172.20.102.255
inet6 fe80::483b:83ff:fe03:3836%ravb0 prefixlen 64 scopeid 0x11

`

route show

` root@# route show
Routing tables

   Internet:
  Destination        Gateway            Flags
  default            172.20.102.1       UG
  salvator-xs        127.0.0.1          UH
  172.20.102.0/24    link#17            U
  172.20.102.1       74:1f:4a:92:63:78  UHL
  172.20.102.32      a0:8c:fd:c5:d7:b5  UHL
  172.20.102.35      127.0.0.1          UGH
  172.20.102.153     00:0b:ab:9f:a7:6b  UHL
  224.0.0.0/8        172.20.102.35      UG

  Internet6:
  Destination        Gateway            Flags
  Localhost.localdom localhost.localdom UH
 fe80::%lo0         fe80::1%lo0        U
 fe80::1%lo0        link#1             UHL
 fe80::%ravb0       link#17            U
 fe80::483b:83ff:fe03:3836%ravb0 4a:3b:83:03:38:36  UHL
 ff01:1::           localhost.localdom U
 ff01:11::          link#17            U
 ff02::%lo0         localhost.localdom U
 ff02::%ravb0       link#17            U
`

netstat

` root@:~# netstat

 Active Internet connections

  Proto Recv-Q Send-Q  Local Address          Foreign Address        State
  tcp        0      0  172.20.102.35.ssh      172.24.187.62.55970    ESTABLISHED
  tcp        0      0  172.20.102.35.ssh      172.20.102.32.46004    ESTABLISHED
  tcp        0      0  *.1234                 *.*                    LISTEN
  tcp        0      0  172.20.102.35.ssh      172.20.102.32.45254    ESTABLISHED
 tcp        0      0  *.ssh                  *.*                    LISTEN
 tcp        0      0  *.8000                 *.*                    LISTEN
 tcp        0      0  *.telnet               *.*                    LISTEN
 tcp        0      0  *.ftp                  *.*                    LISTEN
 udp        0      0  *.*                    *.*
udp        0      0  *.65463                *.*
udp        0      0  *.7413                 *.*
udp        0      0  *.7412                 *.*
udp        0      0  *.7402                 *.*
udp        0      0  *.bootpc               *.*
Active Internet6 connections
Proto Recv-Q Send-Q  Local Address          Foreign Address        (state)
tcp6       0      0  *.ssh                  *.*                    LISTEN`

netstat -g
` . root# netstat -g

   Virtual Interface Table is empty
   
    Multicast Forwarding Cache is empty
    IPv6 Multicast Interface Table is empty
    IPv6 Multicast Routing Table is empt. `

please let me know if you need any more information.

address : IN one machine

I really don't know how to solve the problem, any help is appreciated.

thanks all.

[MiguelCompany]

Hi @darbee

Using the info provided on #272, I have created PR #350 to avoid the need of patching asio to enable multicast. That should solve the problem you are having on QNX.

[MiguelCompany]

Closing this as it should have been fixed by #350.