-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 2013-07-04 13:55, Antoine Villeret wrote: > 2013/7/3 IOhannes m zmoelnig <zmoel...@iem.at> > > On 2013-07-03 17:33, Antoine Villeret wrote: >>>> so it could be difficult to use a server which doesn't accept >>>> more than one connection... >>>> > > no that's not what i meant. you can have as many connections as you > want, but they cannot be maintained at the same time. > > simple example: - both clientA and clientB send a a query to the > server - to complicate things, they do so at exactly the same time > - but since IP is a serial protocol, they will somehow arrive one > after each other - let's assume clientB was faster - [udpserver] > will output the query from clientB - if the server-patch now > immediately responds to that query, the response will be sent back > to clientB - then [udpserver] will output the query from clientA. - > [udpserver] will forget everything about clientB - if the > server-patch responds immediately to that query, the response will > be sent back to clientB - if you later "send" something from the > server, it will still be sent to clientB (because clientB is the > last known connection) > > >> so in this case, if I understand correctly, udpserver never send >> an answer to clientA ?
no, it does send and answer back. >> I have to disconnect clientB *before* connecting clientA ? no. UDP doesn't know about "connections". >> but how clientA will know this is time to connect ? should it try >> until the connection is accepted ? again, UDP is connection-less so there is no connection. i think the main problem here comes from the use of the symbol "connect" for interfacing with e.g. [udpsend]. this message is named "connect" mainly for consistency with the tcp/ip objects. anyhow, when you "connect" a client to server, the client will open a socket for this connection. the server won't know anything about this "connection", but it will receive data on a it's listening socket. it can use the socket to send data back (if you have routers/switches/... inbetween, this sending back will only work for a limited amount of time). since the server doesn't know anything about the "connection"-state of the clients, you don't have to disconnect anything. fgmasdr IOhannes -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Icedove - http://www.enigmail.net/ iEYEARECAAYFAlHVZt0ACgkQkX2Xpv6ydvS1DQCg3OWfgTqDbH6P52s+1S5FOoJt q3IAn3fxytsJlhVAmepjfXsakZIYGFiT =djBg -----END PGP SIGNATURE----- _______________________________________________ Pd-dev mailing list Pd-dev@iem.at http://lists.puredata.info/listinfo/pd-dev