transaction_::transaction_()
: impl_(current_transaction())
{
if (impl_ == NULL) {
if (transaction_impl::part == nullptr)
transaction_impl::part = new partition;
#if !defined(SODIUM_SINGLE_THREADED)
transaction_impl::part->mx.lock();
#endif
if (!transaction_impl::part->processing_on_start_hooks) {
transaction_impl::part->processing_on_start_hooks = true;
try {
if (!transaction_impl::part->shutting_down) {
for (auto it = transaction_impl::part->on_start_hooks.begin();
it != transaction_impl::part->on_start_hooks.end(); ++it)
(*it)();
}
transaction_impl::part->processing_on_start_hooks = false;
}
catch (...) {
transaction_impl::part->processing_on_start_hooks = false;
throw;
}
}
impl_ = new transaction_impl;
#if !defined(SODIUM_SINGLE_THREADED) && defined(SODIUM_USE_PTHREAD_SPECIFIC)
pthread_setspecific(current_transaction_key, impl_);
#else
global_current_transaction = impl_;
#endif
}
transaction_impl::part->depth++;
}
void
execute ()
{
try
{
sock_.join (addr_);
auto_ptr<LinkListener> ll (new LinkListener (sock_, in_link_data_));
{
AutoLock lock (mutex_);
// Loop
//
//
while (true)
{
cond_.wait (&sync_schedule);
// "Loop of Fairness"
bool done = false;
do
{
// control message
//
//
if (!in_control_.empty ())
{
done = true;
break;
}
// outsync
//
//
if (sync_schedule < ACE_OS::gettimeofday ())
{
// OUTSYNC
outsync ();
// schedule next outsync
sync_schedule =
ACE_OS::gettimeofday () +
ACE_Time_Value (0, Protocol::SYNC_PERIOD);
}
// link message
//
//
if (!in_link_data_.empty ())
{
MessagePtr m (in_link_data_.front ());
in_link_data_.pop ();
std::type_info const* exp = &typeid (*m);
if (exp == typeid (LinkFailure))
{
// cerr << "link failure" << endl;
throw false;
}
else if (exp == typeid (LinkData))
{
LinkData* data = dynamic_cast<LinkData*> (m.get ());
// INSYNC, TL, CT
// Filter out loopback.
//
if (ACE_OS::strcmp (data->header().member_id.id, id_) != 0)
{
insync ();
transaction_list ();
current_transaction (data->header().current,
data->payload (),
data->size ());
}
}
else
{
// cerr << "unknown message type from link listener: "
// << typeid (*m).name () << endl;
ACE_OS::abort ();
}
}
// api message
//
//
if (!in_data_.empty ())
{
// API
api ();
}
} while (!in_link_data_.empty() ||
sync_schedule < ACE_OS::gettimeofday ());
if (done) break;
}
}
}
catch (...)
{
// cerr << "Exception in scheduler loop." << endl;
MessageQueueAutoLock lock (out_control_);
out_control_.push (MessagePtr (new Failure));
}
}