Hi Nanang,
Because my program need to ask external call center program for SDP
answer when I get on_rx_offer() callback. There will be long delay, then sip
thread will be paused at this callback.It isn't acceptable by my design.So I
patched pjsip-ua code to allow my program to handle re-Invite just like
initial invite. But I guess my patch maybe broken to handle UPDATE. Is there
any good advice for me?
/*
* State CONFIRMED is after ACK is sent/received.
*/
static void inv_on_state_confirmed( pjsip_inv_session *inv, pjsip_event *e)
{
....
/* Can not receive re-INVITE while another one is pending. */
status = pjsip_dlg_create_response( inv->dlg, rdata, 500,
&reason, &tdata);
if (status != PJ_SUCCESS)
return;
status = pjsip_dlg_send_response( inv->dlg, tsx, tdata);
return;
}
/* Save the invite transaction. */
inv->invite_tsx = tsx;
/* Modified By Gang Liu, re-Invite*/
if (mod_inv.cb.on_reinvite)
{
status = inv_check_sdp_in_incoming_reInvite(inv, tsx, rdata);
if (status != PJ_SUCCESS) {
/* Not Acceptable */
const pjsip_hdr *accept;
status = pjsip_dlg_create_response(inv->dlg, rdata,
488, NULL, &tdata);
if (status != PJ_SUCCESS)
return;
accept = pjsip_endpt_get_capability(dlg->endpt, PJSIP_H_ACCEPT,
NULL);
if (accept) {
pjsip_msg_add_hdr(tdata->msg, (pjsip_hdr*)
pjsip_hdr_clone(tdata->pool, accept));
}
status = pjsip_dlg_send_response(dlg, tsx, tdata);
return;
}
(*mod_inv.cb.on_reinvite)(inv, rdata);
}
else {
/* Process SDP in incoming message. */
status = inv_check_sdp_in_incoming_msg(inv, tsx, rdata);
if (status != PJ_SUCCESS) {
/* Not Acceptable */
const pjsip_hdr *accept;
regards,
Gang
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