Hi, We're building a phone application which is using pjsip as the sip stack. Everytime the connection changes, (i.e. you change from a WiFi connection to a 3G connection), we need to recreate the transport, because of the previous transport is no longer valid. Right now, whenever we detect that connection change, we're "destroying" the full pjsip stack (calling pjsua_destroy()) and proceeding the same as the first start. This works perfectly but pjsua_destroy() blocks the thread (which happens to be the main thread) for a while. We would like to be able to destroy the transport without destroy the full stack of pjsip. To achieve this, we have replaced the pjsua_destroy() with pjsip_transport_shutdown(), but this replacement have some implications: * How can we get the transport reference in this "transport_destroy()" function?. Right now, we are saving the transport in a static variable which is set in the "on_transport_state" callback. * When we call pjsip_init again, this Assert fails: Assertion failed: (pj_list_find_node(&endpt->module_list, mod) == mod), function pjsip_endpt_unregister_module, file ../src/pjsip/sip_endpoint.c, line 229. * As Benny told in this email ( http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2008-February/001868.html) the transport is not destroyed at that time. What happens if we try to connect to the same server? Do pjsip try to reuse the "shutdown-but-not-destroyed" transport, which is no longer valid? Which is the best method to create a new transport (and send a new REGISTER message) everytime the connection of the phone changes? Thanks in advance. Roberto. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20120416/b81dc899/attachment-0001.html>
