/** Save nua event and its arguments.
*
* @sa #nua_event_e, nua_event_data() nua_saved_event_request(), nua_destroy_event()
*/
int nua_save_event(nua_t *nua, nua_saved_event_t return_saved[1])
{
if (return_saved) {
if (nua && nua->nua_current) {
su_msg_save(return_saved, nua->nua_current->nf_saved);
return su_msg_is_non_null(return_saved);
}
else
*return_saved = NULL;
}
return 0;
}
/** Get current request message. @NEW_1_12_4.
*
* @note A response message is returned when processing response message.
*
* @sa #nua_event_e, nua_respond(), NUTAG_WITH_CURRENT()
*/
msg_t *nua_current_request(nua_t const *nua)
{
if (nua && nua->nua_current && su_msg_is_non_null(nua->nua_current->nf_saved))
return su_msg_data(nua->nua_current->nf_saved)->ee_data->e_msg;
return NULL;
}
/**Create a client request.
*
* @retval 0 if request is pending
* @retval > 0 if error event has been sent
* @retval < 0 upon an error
*/
int nua_client_create(nua_handle_t *nh,
int event,
nua_client_methods_t const *methods,
tagi_t const * const tags)
{
su_home_t *home = nh->nh_home;
nua_client_request_t *cr;
sip_method_t method;
char const *name;
method = methods->crm_method, name = methods->crm_method_name;
if (!name) {
tagi_t const *t = tl_find_last(tags, nutag_method);
if (t)
name = (char const *)t->t_value;
}
cr = su_zalloc(home, sizeof *cr + methods->crm_extra);
if (!cr) {
return nua_stack_event(nh->nh_nua, nh,
NULL,
(enum nua_event_e)event,
NUA_ERROR_AT(__FILE__, __LINE__),
NULL);
}
cr->cr_methods = methods;
cr->cr_event = event;
cr->cr_method = method;
cr->cr_method_name = name;
cr->cr_contactize = methods->crm_flags.target_refresh;
cr->cr_dialog = methods->crm_flags.create_dialog;
cr->cr_auto = 1;
if (su_msg_is_non_null(nh->nh_nua->nua_signal)) {
nua_event_data_t *e = su_msg_data(nh->nh_nua->nua_signal)->ee_data;
if (tags == e->e_tags && event == e->e_event) {
cr->cr_auto = 0;
if (tags) {
nua_move_signal(cr->cr_signal, nh->nh_nua->nua_signal);
if (cr->cr_signal) {
/* Steal reference from signal */
cr->cr_owner = e->e_nh, e->e_nh = NULL;
cr->cr_tags = tags;
}
}
}
}
if (cr->cr_owner == NULL)
cr->cr_owner = nua_handle_ref(nh);
if (tags && cr->cr_tags == NULL)
cr->cr_tags = tl_tlist(nh->nh_home, TAG_NEXT(tags));
#if HAVE_MEMLEAK_LOG
SU_DEBUG_0(("%p %s() for %s\n", cr, __func__, cr->cr_methods->crm_method_name));
#endif
if (nua_client_request_queue(cr))
return 0;
return nua_client_init_request(cr);
}
