/** @internal Remove dialog usage.
*
* Zap dialog state (leg, tag and route) if no usages remain.
*/
static void
nua_dialog_usage_remove_at(nua_owner_t *own,
nua_dialog_state_t *ds,
nua_dialog_usage_t **at,
nua_client_request_t *cr0,
nua_server_request_t *sr0)
{
if (*at) {
nua_dialog_usage_t *du = *at;
sip_event_t const *o = NULL;
nua_client_request_t *cr, *cr_next;
nua_server_request_t *sr, *sr_next;
*at = du->du_next;
o = du->du_event;
SU_DEBUG_5(("nua(%p): removing %s usage%s%s\n",
(void *)own, nua_dialog_usage_name(du),
o ? " with event " : "", o ? o->o_type :""));
du->du_class->usage_remove(own, ds, du, cr0, sr0);
/* Clean reference to saved client request */
if (du->du_cr)
nua_client_bind(du->du_cr, NULL);
/* Clean references from queued client requests */
for (cr = ds->ds_cr; cr; cr = cr_next) {
cr_next = cr->cr_next;
if (cr->cr_usage == du)
cr->cr_usage = NULL;
}
/* Clean references from queued server requests */
for (sr = ds->ds_sr; sr; sr = sr_next) {
sr_next = sr->sr_next;
if (sr->sr_usage == du) {
sr->sr_usage = NULL;
if (sr != sr0)
nua_server_request_destroy(sr);
}
}
su_home_unref(own);
su_free(own, du);
}
/* Zap dialog if there are no more usages */
if (ds->ds_terminating)
;
else if (ds->ds_usage == NULL) {
nua_dialog_remove(own, ds, NULL);
ds->ds_has_events = 0;
return;
}
else {
nua_dialog_log_usage(own, ds);
}
}
void nh_destroy(nua_t *nua, nua_handle_t *nh)
{
assert(nh); assert(nh != nua->nua_dhandle);
if (nh->nh_notifier)
nea_server_destroy(nh->nh_notifier), nh->nh_notifier = NULL;
while (nh->nh_ds->ds_cr)
nua_client_request_complete(nh->nh_ds->ds_cr);
while (nh->nh_ds->ds_sr)
nua_server_request_destroy(nh->nh_ds->ds_sr);
nua_dialog_deinit(nh, nh->nh_ds);
if (nh_is_inserted(nh))
nh_remove(nua, nh);
nua_handle_unref(nh); /* Remove stack reference */
}
