/** @interal Shut down NOTIFY usage.
*
* @retval >0 shutdown done
* @retval 0 shutdown in progress
* @retval <0 try again later
*/
static int nua_notify_usage_shutdown(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du)
{
struct notifier_usage *nu = nua_dialog_usage_private(du);
nua_client_request_t *cr = du->du_cr;
nu->nu_substate = nua_substate_terminated;
if (cr) {
SU_DEBUG_5(("%s(%p, %p, %p): using existing cr=%p\n",
"nua_notify_usage_shutdown",
(void *)nh, (void *)ds, (void *)du, (void *)cr));
if (nua_client_resend_request(cr, 1) >= 0)
return 0;
}
else {
SU_DEBUG_5(("%s(%p, %p, %p): new NOTIFY cr for %s\n",
"nua_notify_usage_shutdown",
(void *)nh, (void *)ds, (void *)du,
du->du_event ? du->du_event->o_type : "<implicit>"));
if (nua_client_tcreate(nh, nua_r_notify,
&nua_notify_client_methods,
SIPTAG_EVENT(du->du_event),
NUTAG_SUBSTATE(nua_substate_terminated),
TAG_END()) >= 0)
return 0;
}
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
return 200;
}
static int nua_notify_client_report(nua_client_request_t *cr,
int status, char const *phrase,
sip_t const *sip,
nta_outgoing_t *orq,
tagi_t const *tags)
{
nua_handle_t *nh = cr->cr_owner;
nua_dialog_usage_t *du = cr->cr_usage;
struct notifier_usage *nu = nua_dialog_usage_private(du);
enum nua_substate substate = nua_substate_terminated;
if (nu && !cr->cr_terminated)
substate = nu->nu_substate;
nua_stack_tevent(nh->nh_nua, nh,
nta_outgoing_getresponse(orq),
(enum nua_event_e)cr->cr_event,
status, phrase,
NUTAG_SUBSTATE(substate),
SIPTAG_EVENT(du ? du->du_event : NULL),
TAG_NEXT(tags));
if (du && du->du_cr == cr && !cr->cr_terminated) {
if (nu->nu_requested) {
/* Re-SUBSCRIBEd while NOTIFY was in progress, resend NOTIFY */
nua_client_resend_request(cr, 0);
}
else if (nu->nu_expires) {
nua_dialog_usage_set_refresh_at(du, nu->nu_expires);
}
}
return 0;
}
static void nua_notify_usage_refresh(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du,
sip_time_t now)
{
struct notifier_usage *nu = nua_dialog_usage_private(du);
nua_client_request_t *cr = du->du_cr;
nua_event_t e = nua_r_notify;
if (cr) {
int terminating = 0;
if (nu->nu_expires && nu->nu_expires <= now)
terminating = 1;
else if (nu->nu_requested && nu->nu_requested <= now)
terminating = 1;
if (nua_client_resend_request(cr, terminating) >= 0)
return;
}
else {
if (nua_client_create(nh, e, &nua_notify_client_methods, NULL) >= 0)
return;
}
nua_stack_tevent(nh->nh_nua, nh, NULL, e, NUA_ERROR_AT(__FILE__, __LINE__),
NUTAG_SUBSTATE(nua_substate_terminated),
TAG_END());
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
}
/** Refresh subscription */
static void nua_subscribe_usage_refresh(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du,
sip_time_t now)
{
nua_client_request_t *cr = du->du_cr;
struct event_usage *eu = nua_dialog_usage_private(du);
assert(eu);
if (eu->eu_final_wait) {
/* Did not receive NOTIFY for fetch */
sip_event_t const *o = du->du_event;
char const *id = o ? o->o_id : NULL;
SU_DEBUG_3(("nua(%p): event %s%s%s fetch timeouts\n",
(void *)nh, o ? o->o_type : "(empty)",
id ? "; id=" : "", id ? id : ""));
nua_stack_tevent(nh->nh_nua, nh, NULL,
nua_i_notify, 408, "Fetch Timeouts without NOTIFY",
NUTAG_SUBSTATE(nua_substate_terminated),
SIPTAG_EVENT(du->du_event),
TAG_END());
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
return;
}
if (cr) {
if (nua_client_resend_request(cr, 0) >= 0)
return;
}
else if (eu->eu_refer) {
/*
* XXX - If we have received a NOTIFY, we should try to terminate
* subscription
*/
}
if (!eu->eu_unsolicited)
nua_stack_tevent(nh->nh_nua, nh, NULL,
nua_i_notify, NUA_ERROR_AT(__FILE__, __LINE__),
NUTAG_SUBSTATE(nua_substate_terminated),
SIPTAG_EVENT(du->du_event),
TAG_END());
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
}
/** @interal Shut down PUBLISH usage.
*
* @retval >0 shutdown done
* @retval 0 shutdown in progress
* @retval <0 try again later
*/
static int nua_publish_usage_shutdown(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du)
{
nua_client_request_t *cr = du->du_cr;
if (cr) {
if (nua_client_resend_request(cr, 1) >= 0)
return 0;
}
/* XXX - report to user */
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
return 200;
}
/** Terminate subscription.
*
* @retval >0 shutdown done
* @retval 0 shutdown in progress
* @retval <0 try again later
*/
static int nua_subscribe_usage_shutdown(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du)
{
struct event_usage *eu = nua_dialog_usage_private(du);
nua_client_request_t *cr = du->du_cr;
assert(eu); (void)eu;
if (cr) {
if (nua_client_resend_request(cr, 1) >= 0)
return 0;
}
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
return 200;
}
static void nua_publish_usage_refresh(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du,
sip_time_t now)
{
nua_client_request_t *cr = du->du_cr;
if (cr) {
if (nua_client_resend_request(cr, 0) >= 0)
return;
}
nua_stack_event(nh->nh_nua, nh, NULL,
nua_r_publish, NUA_ERROR_AT(__FILE__, __LINE__),
NULL);
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
}
static void nua_notify_usage_refresh(nua_handle_t *nh,
nua_dialog_state_t *ds,
nua_dialog_usage_t *du)
{
struct notifier_usage *nu = nua_dialog_usage_private(du);
nua_client_request_t *cr = du->du_cr;
nua_event_t e = nua_r_notify;
if (cr) {
int terminating = 0;
sip_time_t now = sip_now();
SU_DEBUG_7(("%s(%p, %p, %p): using existing cr=%p\n",
"nua_notify_usage_refresh",
(void *)nh, (void *)ds, (void *)du, (void *)cr));
if (nu->nu_expires && nu->nu_expires <= now)
terminating = 1;
else if (nu->nu_requested && nu->nu_requested <= now)
terminating = 1;
if (nua_client_resend_request(cr, terminating) >= 0)
return;
}
else {
SU_DEBUG_7(("%s(%p, %p, %p): new NOTIFY cr for %s\n",
"nua_notify_usage_refresh",
(void *)nh, (void *)ds, (void *)du,
du->du_event ? du->du_event->o_type : "<implicit>"));
if (nua_client_create(nh, e, &nua_notify_client_methods, NULL) >= 0)
return;
}
nua_stack_tevent(nh->nh_nua, nh, NULL, e, NUA_ERROR_AT(__FILE__, __LINE__),
NUTAG_SUBSTATE(nua_substate_terminated),
TAG_END());
nua_dialog_usage_remove(nh, ds, du, NULL, NULL);
}
