Abstract sockets (linux)

[Ali Çehreli via Digitalmars-d-learn]

On 06/25/2015 08:56 AM, freeman wrote:
> I am having trouble using abstract sockets on Linux.
>
> Here is sample python code that works, which works:
>      ptm_sockname = "\0/var/run/ptmd.socket"
>      sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
>      sock.connect(ptm_sockname)
>      sock.setblocking(1)
>      sock.sendall('get-status detail')
>
> Similar code in D, which does not work:
>      string socket_name = "\0/var/run/ptmd.socket";
>      auto address = new UnixAddress(socket_name);
>      auto sock = new Socket(AddressFamily.UNIX, SocketType.STREAM);
>      scope(exit) sock.close();
>      sock.blocking = true;
>      sock.connect(address);
>      sock.send("get-status detail");
>
> This is the equivalent with socat, which works:
>      $ echo "get-status detail" | socat -
> ABSTRACT-CLIENT:/var/run/ptmd.socket
>
> My test D program exits on connect:
> std.socket.SocketOSException at runtime/phobos/std/socket.d(2674): Unable
> to connect socket: Connection refused
>
> Any pointers?

I've found an old example of mine, which uses abstract sockets. 
Apparently, it was a concurrency experiment as well. Just translated 
from Turkish to English:

   http://ddili.org/ornek_kod/client_server.d

One difference I see is that mine doesn't set blocking. You can use it 
like this:

1) Start it as a server:

   ./deneme --role=server

2) Start as many clients as needed:

   ./deneme --role=client

Ali

P.S. And here is the original Turkish version:

   http://ddili.org/ornek_kod/istemci_sunucu.d