void AIHTTPView::draw()
{
for_each(mServiceBars.begin(), mServiceBars.end(), KillView());
mServiceBars.clear();
if (mGLHTTPHeaderBar)
{
removeChild(mGLHTTPHeaderBar);
mGLHTTPHeaderBar->die();
}
CreateServiceBar functor(this);
AIPerService::copy_forEach(functor);
sTime_40ms = get_clock_count() * AICurlPrivate::curlthread::HTTPTimeout::sClockWidth_40ms;
mGLHTTPHeaderBar = new AIGLHTTPHeaderBar("gl httpheader bar", this);
addChild(mGLHTTPHeaderBar);
reshape(mWidth, getRect().getHeight(), TRUE);
for (child_list_const_iter_t child_iter = getChildList()->begin(); child_iter != getChildList()->end(); ++child_iter)
{
LLView* viewp = *child_iter;
if (viewp->getRect().mBottom < 0)
{
viewp->setVisible(FALSE);
}
}
LLContainerView::draw();
}
void AIStateMachine::yield_ms(unsigned int ms)
{
DoutEntering(dc::statemachine(mSMDebug), "AIStateMachine::yield_ms(" << ms << ") [" << (void*)this << "]");
mSleep = get_clock_count() + calc_clock_frequency() * ms / 1000;
// Sleeping is always done from the main thread.
yield(&gMainThreadEngine);
}
// MAIN-THREAD
void AIEngine::mainloop(void)
{
queued_type::iterator queued_element, end;
{
engine_state_type_wat engine_state_w(mEngineState);
end = engine_state_w->list.end();
queued_element = engine_state_w->list.begin();
}
U64 total_clocks = 0;
#if STATE_MACHINE_PROFILING
queued_type::value_type slowest_element(NULL);
AIStateMachine::StateTimerRoot::TimeData slowest_timer;
#endif
while (queued_element != end)
{
AIStateMachine& state_machine(queued_element->statemachine());
AIStateMachine::StateTimerBase::TimeData time_data;
if (!state_machine.sleep(get_clock_count()))
{
AIStateMachine::StateTimerRoot timer(state_machine.getName());
state_machine.multiplex(AIStateMachine::normal_run);
time_data = timer.GetTimerData();
}
if (U64 delta = time_data.GetDuration())
{
state_machine.add(delta);
total_clocks += delta;
#if STATE_MACHINE_PROFILING
if (delta > slowest_timer.GetDuration())
{
slowest_element = *queued_element;
slowest_timer = time_data;
}
#endif
}
bool active = state_machine.active(this); // This locks mState shortly, so it must be called before locking mEngineState because add() locks mEngineState while holding mState.
engine_state_type_wat engine_state_w(mEngineState);
if (!active)
{
Dout(dc::statemachine(state_machine.mSMDebug), "Erasing state machine [" << (void*)&state_machine << "] from " << mName);
engine_state_w->list.erase(queued_element++);
}
else
{
++queued_element;
}
if (total_clocks >= sMaxCount)
{
#if STATE_MACHINE_PROFILING
print_statemachine_diagnostics(total_clocks, slowest_timer, slowest_element);
#endif
Dout(dc::statemachine, "Sorting " << engine_state_w->list.size() << " state machines.");
engine_state_w->list.sort(QueueElementComp());
break;
}
}
}
// static
void AIStateMachine::dowork(void)
{
llassert(!active_statemachines.empty());
// Run one or more state machines.
U64 total_clocks = 0;
for (active_statemachines_type::iterator iter = active_statemachines.begin(); iter != active_statemachines.end(); ++iter)
{
AIStateMachine& statemachine(iter->statemachine());
if (!statemachine.mIdle)
{
U64 start = get_clock_count();
// This might call idle() and then pass the statemachine to another thread who then may call cont().
// Hence, after this isn't not sure what mIdle is, and it can change from true to false at any moment,
// if it is true after this function returns.
statemachine.multiplex(start);
U64 delta = get_clock_count() - start;
iter->add(delta);
total_clocks += delta;
if (total_clocks >= sMaxCount)
{
#ifndef LL_RELEASE_FOR_DOWNLOAD
llwarns << "AIStateMachine::mainloop did run for " << (total_clocks * 1000 / calc_clock_frequency()) << " ms." << llendl;
#endif
std::sort(active_statemachines.begin(), active_statemachines.end(), QueueElementComp());
break;
}
}
}
// Remove idle state machines from the loop.
active_statemachines_type::iterator iter = active_statemachines.begin();
while (iter != active_statemachines.end())
{
AIStateMachine& statemachine(iter->statemachine());
// Atomic test mIdle and change mActive.
bool locked = statemachine.mIdleActive.tryLock();
// If the lock failed, then another thread is in the middle of calling cont(),
// thus mIdle will end up false. So, there is no reason to block here; just
// treat mIdle as false already.
if (locked && statemachine.mIdle)
{
// Without the lock, it would be possible that another thread called cont() right here,
// changing mIdle to false again but NOT adding the statemachine to continued_statemachines,
// thinking it is in active_statemachines (and it is), while immediately below it is
// erased from active_statemachines.
statemachine.mActive = as_idle;
// Now, calling cont() is ok -- as that will cause the statemachine to be added to
// continued_statemachines, so it's fine in that case-- even necessary-- to remove it from
// active_statemachines regardless, and we can release the lock here.
statemachine.mIdleActive.unlock();
Dout(dc::statemachine, "Erasing " << (void*)&statemachine << " from active_statemachines");
iter = active_statemachines.erase(iter);
if (statemachine.mState == bs_killed)
{
Dout(dc::statemachine, "Deleting " << (void*)&statemachine);
delete &statemachine;
}
}
else
{
if (locked)
{
statemachine.mIdleActive.unlock();
}
llassert(statemachine.mActive == as_active); // It should not be possible that another thread called cont() and changed this when we are we are not idle.
llassert(statemachine.mState == bs_run || statemachine.mState == bs_initialize);
++iter;
}
}
if (active_statemachines.empty())
{
// If this was the last state machine, remove mainloop from the IdleCallbacks.
AIReadAccess<csme_type> csme_r(sContinuedStateMachinesAndMainloopEnabled, true);
if (csme_r->continued_statemachines.empty() && csme_r->mainloop_enabled)
{
Dout(dc::statemachine, "Deactivating AIStateMachine::mainloop: no active state machines left.");
AIWriteAccess<csme_type>(csme_r)->mainloop_enabled = false;
}
}
}
U64 get_cpu_clock_count()
{
return get_clock_count();
}
