Changes between Version 15 and Version 16 of IPAddressChange

Timestamp:

Mar 24, 2017 2:56:23 AM (8 years ago)

Author:

ming

Comment:

--

IPAddressChange

@@ -231 +231 @@
  4. And finally, once unregistration in 2b) above is complete, re-register (with TCP). 
 
+== Disconnection detection ==
+For TCP/TLS, you can enable socket keep-alive parameters via {{{pjsua_transport_config.sockopt_params}}} to detect if there is a disconnection. The below code has been reported to work on iOS (30s timeout).
+{{{
+static int time=30, probe=5, interval=1, enable=1;
+cfg.sockopt_params.cnt = 4;
+cfg.sockopt_params.options[0].level     = pj_SOL_TCP();
+cfg.sockopt_params.options[0].optname   = TCP_KEEPIDLE;
+cfg.sockopt_params.options[0].optval    = &time;
+cfg.sockopt_params.options[0].optlen    = sizeof(time);
+
+cfg.sockopt_params.options[1].level     = pj_SOL_TCP();
+cfg.sockopt_params.options[1].optname   = TCP_KEEPINTVL;
+cfg.sockopt_params.options[1].optval    = &interval;
+cfg.sockopt_params.options[1].optlen    = sizeof(interval);
+
+cfg.sockopt_params.options[2].level     = pj_SOL_TCP();
+cfg.sockopt_params.options[2].optname   = TCP_KEEPCNT;
+cfg.sockopt_params.options[2].optval    = &probe;
+cfg.sockopt_params.options[2].optlen    = sizeof(probe);
+
+cfg.sockopt_params.options[3].level     = pj_SOL_SOCKET();
+cfg.sockopt_params.options[3].optname   = SO_KEEPALIVE;
+cfg.sockopt_params.options[3].optval    = &enable;
+cfg.sockopt_params.options[3].optlen    = sizeof(enable);
+}}}
 
 == Symbian specific issues and solution == #sym