/**
* Checks, in the transaction pool, if the outgoing message belongs to a pending
* transaction. If true it runs the transaction, otherwise it creates a new
* transaction.
*
* @param out The output message.
*/
void message_out::operator()(meta_message_ptr& out)
{
out->ackreq(true); // FIXME: read from config file
if (out->opcode() == mih::operation::response) {
dst_transaction_ptr t;
dst_transaction_set::iterator it;
_tpool.find(out->destination(), out->tid(), t);
if (t) {
t->out = out;
t->msg_out_avail = true;
if (t->start_ack_requestor)
t->ack_requestor();
if (t->start_ack_responder)
t->ack_responder();
if(t->transaction_status == ONGOING)
t->run();
if (t->transaction_status != ONGOING && t->ack_requestor_status != ONGOING)
_tpool.del(t);
} else {
new_src_transaction(out);
}
} else if ((out->opcode() == mih::operation::indication) || (out->opcode() == mih::operation::request)) {
src_transaction_ptr t;
_tpool.find(out->destination(), out->tid(), t);
if (t) {
t->out = out;
t->msg_out_avail = true;
if (t->start_ack_requestor)
t->ack_requestor();
if (t->start_ack_responder)
t->ack_responder();
if(t->transaction_status == ONGOING)
t->run();
if (t->transaction_status != ONGOING && t->ack_requestor_status != ONGOING)
_tpool.del(t);
} else {
new_src_transaction(out);
}
}
}
/**
* Run Acknowledge Responder State Machine transaction.
*/
void ack_responder()
{
switch(ack_rsp_state)
{
case ACK_RSP_INIT:
goto _rsp_init_lbl_;
case ACK_RSP_RETURN_ACK:
goto _rsp_return_ack_lbl_;
case ACK_RSP_PIGGYBACKING:
goto _rsp_piggybacking_lbl_;
case ACK_RSP_RETURN_DUPLICATE:
goto _rsp_return_duplicate_lbl_;
}
_rsp_init_lbl_:
{
ack->ackreq(false);
ack->ackrsp(true);
ack->opcode((mih::operation::type)opcode);
ack->tid(tid);
ack->mid(in->mid());
ack->source(my_mihf_id);
ack->destination(peer_mihf_id);
ack->ip(in->ip());
ack->port(in->port());
if (msg_out_avail)
goto _rsp_piggybacking_lbl_;
else
{
_netsap.send(ack);
msg_in_avail = false;
goto _rsp_return_ack_lbl_;
}
return;
}
_rsp_return_ack_lbl_:
{
ack_rsp_state = ACK_RSP_RETURN_ACK;
if(msg_in_avail)
{
_netsap.send(ack);
msg_in_avail = false;
}
else if (msg_out_avail)
goto _rsp_piggybacking_lbl_;
return;
}
_rsp_piggybacking_lbl_:
{
ack_rsp_state = ACK_RSP_PIGGYBACKING;
out->ackrsp(true);
dup = out;
if (msg_in_avail)
goto _rsp_return_duplicate_lbl_;
return;
}
_rsp_return_duplicate_lbl_:
{
ack_rsp_state = ACK_RSP_RETURN_DUPLICATE;
if (msg_in_avail) {
_netsap.send(dup);
msg_in_avail = false;
}
}
}
