int add_phony_uac( struct cell *t)
{
str dummy_buffer = str_init("DUMMY");
unsigned short branch;
utime_t timer;
branch=t->nr_of_outgoings;
if (branch==MAX_BRANCHES) {
LM_ERR("maximum number of branches exceeded\n");
return E_CFG;
}
/* check existing buffer -- rewriting should never occur */
if (t->uac[branch].request.buffer.s) {
LM_CRIT("buffer rewrite attempt\n");
ser_error=E_BUG;
return E_BUG;
}
/* we attach a dummy buffer just to pass all the "tests" for a
* valid branch */
t->uac[branch].request.buffer.s = (char*)shm_malloc(dummy_buffer.len);
if (t->uac[branch].request.buffer.s==NULL) {
LM_ERR("failed to alloc dummy buffer for phony branch\n");
/* there is nothing to reset on the branch */
return E_OUT_OF_MEM;
}
memcpy( t->uac[branch].request.buffer.s, dummy_buffer.s, dummy_buffer.len);
t->uac[branch].request.buffer.len = dummy_buffer.len;
t->uac[branch].request.my_T = t;
t->uac[branch].request.branch = branch;
t->uac[branch].flags = T_UAC_IS_PHONY;
/* in invalid proto will prevent adding this retransmission buffer
* to the retransmission timer (there is nothing to retransmit here :P */
t->uac[branch].request.dst.proto = PROTO_NONE;
t->nr_of_outgoings++;
/* we set here only FR (final response) timer, to be sure this branch
* comes to an end - as timeout value we use exactly the same value the
* transaction has set as FR_INV_TIMEOUT */
if (is_timeout_set(t->fr_inv_timeout)) {
timer = t->fr_inv_timeout;
set_1timer(&t->uac[branch].request.fr_timer, FR_INV_TIMER_LIST,&timer);
} else {
set_1timer(&t->uac[branch].request.fr_timer, FR_INV_TIMER_LIST, NULL);
}
set_kr(REQ_FWDED);
return 0;
}
void put_on_wait( struct cell *Trans )
{
#ifdef EXTRA_DEBUG
LM_DBG("put on WAIT \n");
#endif
/* we put the transaction on wait timer; we do it only once
in transaction's timelife because putting it multiple-times
might result in a second instance of a wait timer to be
set after the first one fired; on expiration of the second
instance, the transaction would be re-deleted
PROCESS1 PROCESS2 TIMER PROCESS
0. 200/INVITE rx;
put_on_wait
1. 200/INVITE rx;
2. WAIT fires; transaction
about to be deleted
3. avoid putting
on WAIT again
4. WAIT timer executed,
transaction deleted
*/
set_1timer( &Trans->wait_tl, WT_TIMER_LIST, 0 );
}
inline void _set_fr_retr( struct retr_buf *rb, int retr )
{
utime_t timer;
if (retr && !rb->retr_timer.deleted) {
rb->retr_list=RT_T1_TO_1;
set_timer( &rb->retr_timer, RT_T1_TO_1, NULL );
}
if (!rb->my_T || !is_timeout_set(rb->my_T->fr_timeout))
set_1timer(&rb->fr_timer, FR_TIMER_LIST, NULL);
else {
timer = rb->my_T->fr_timeout;
set_1timer(&rb->fr_timer, FR_TIMER_LIST, &timer);
}
}
