<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div>I solved the problem myself...</div><div> </div>I have registered my service in the "Client Registering" state and then the avahi_service_browser_new call does not fail in assertion.<div> </div><div>It is a little bit strange and I don't understand it but now it works...</div><div>Can somebody explain this?</div><div> </div><div>Correct working version:</div><div><blockquote type="cite"><div> + create a Avahi client (with flag AVAHI_CLIENT_NO_FAIL) + create a service browser for _printer._tcp + get browser callbacks for printers found </div></blockquote> <blockquote type="cite"><div> + restart avahi daemon </div></blockquote> <blockquote type="cite"><div> + upon connection lost client callback free the client and create a new Avahi client + upon client in state AVAHI_CLIENT_S_REGISTERING: I create a new service browser for _printer._tcp.  </div></blockquote></div><div><blockquote type="cite"><div> + get browser callbacks for printers found </div></blockquote></div><div><div> </div></div><div>Version that runs into assertion:</div><div><blockquote type="cite"><div> + create a Avahi client (with flag AVAHI_CLIENT_NO_FAIL) + create a service browser for _printer._tcp</div></blockquote><blockquote type="cite"><div> + get browser callback for printers found</div></blockquote> <blockquote type="cite"><div> + restart avahi daemon </div></blockquote> <blockquote type="cite"><div> + upon connection lost client callback free the client and create a new Avahi client + upon client in state AVAHI_CLIENT_S_RUNNING: I create a new service browser for _printer._tcp.</div></blockquote><blockquote type="cite"><div> + then I get a assertion "AvahiTest: browser.c:583: avahi_service_browser_new: Assertion `client' failed." </div></blockquote></div><div> </div><div> </div><div>E-J <div> <div><div>Op 12 mei 2011, om 22:04 heeft E-J van der Linden het volgende geschreven:</div> <blockquote type="cite"><div>My test is according to this: + create a Avahi client (with flag AVAHI_CLIENT_NO_FAIL) + create a service browser + get browser callback + restart avahi daemon + upon connection lost client callback free the client and create a new Avahi client + upon client in state AVAHI_CLIENT_S_RUNNING: I create a new service browser. + then I get a assertion "AvahiTest: browser.c:583: avahi_service_browser_new: Assertion `client' failed." Could somebody tell me how I register for new services after the daemon was down and coming up again? Here are the details: I create a client  glib_poll = avahi_glib_poll_new (NULL, G_PRIORITY_DEFAULT); // Create the GLIB Adaptor  poll_api = avahi_glib_poll_get (glib_poll);  // Create a new AvahiClient instance  gClient = avahi_client_new ( poll_api,                                           AVAHI_CLIENT_NO_FAIL,           avahi_client_callback,           NULL,                         &error);               ** Message: Avahi Client State Change: 2 ** Message: Client running; connected to the Avahi Daemon Then I create a service browser gSb = avahi_service_browser_new(gClient, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_printer._tcp", NULL, 0, browse_callback, gClient ); Now I get browse callbacks for services of type _printer._tcp which I can resolve. Now I restart the avahi daemon and I get client callbacks from the different states: ** Message: Avahi Client State Change: 100 ** Message: Disconnected from the Avahi Daemon: Daemon connection failed ** Message: Avahi Client State Change: 101 ** Message: Client is connecting to the Avahi Daemon ** Message: Avahi Client State Change: 1 ** Message: Client registering ** Message: Avahi Client State Change: 2 ** Message: Client running; connected to the Avahi Daemon I release the client upon disconnection and then I start a new one. glib_poll = avahi_glib_poll_new (NULL, G_PRIORITY_DEFAULT); // Create the GLIB Adaptor  poll_api = avahi_glib_poll_get (glib_poll);  // Create a new AvahiClient instance  gClient = avahi_client_new ( poll_api,                                           AVAHI_CLIENT_NO_FAIL,           avahi_client_callback,           NULL,                 &error);               When the client is again in state AVAHI_CLIENT_S_RUNNING, I start a new browser for the _printer._tcp service when we are connected to the daemon Then I get the following assertion: AvahiTest: browser.c:583: avahi_service_browser_new: Assertion `client' failed. This is my client callback: switch (state) { case AVAHI_CLIENT_FAILURE: { g_message ("Disconnected from the Avahi Daemon: %s", avahi_strerror(avahi_client_errno(client)));    avahi_client_free (gClient);   lResult = AvahiLibStartClient(); break; } case AVAHI_CLIENT_CONNECTING: {   g_message ("Client is connecting to the Avahi Daemon"); break; } case AVAHI_CLIENT_S_RUNNING: {   g_message ("Client running; connected to the Avahi Daemon"); gSb = avahi_service_browser_new(gClient, AVAHI_IF_UNSPEC, AVAHI_PROTO_UNSPEC, "_printer._tcp", NULL, 0, browse_callback, gClient ); break; } case AVAHI_CLIENT_S_REGISTERING: {   g_message ("Client registering");   break; } case AVAHI_CLIENT_S_COLLISION: {   g_message ("Client collision");   break; } default: {   g_message ("Client to an undefined state?"); // no action } } </div></blockquote></div> </div></div></body></html>