bool
EventLoop::stopping()
{
MSG msg;
return Scheduler::stopping() &&
!PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE) && nextTimer() == ~0ull;
}
void
EventLoop::onTimerInsertedAtFront()
{
unsigned long long next = nextTimer();
MORDOR_ASSERT(next != ~0ull);
UINT uElapse = (UINT)((next / 1000) + 1);
uElapse = std::max<UINT>(USER_TIMER_MINIMUM, uElapse);
uElapse = std::min<UINT>(USER_TIMER_MAXIMUM, uElapse);
if (!SetTimer(m_messageWindow, 1, uElapse, NULL))
MORDOR_THROW_EXCEPTION_FROM_LAST_ERROR_API("SetTimer");
}
bool
IOManagerEPoll::stopping(unsigned long long &nextTimeout)
{
nextTimeout = nextTimer();
if (nextTimeout == ~0ull && Scheduler::stopping()) {
boost::mutex::scoped_lock lock(m_mutex);
if (m_pendingEvents.empty()) {
return true;
}
}
return false;
}
void EventsManager::pollEvents(bool skipTimers) {
if (checkForNextFrameCounter()) {
nextFrame();
}
if (checkForNextTimerUpdate() && !skipTimers)
nextTimer();
_vm->_sound->checkSoundQueue();
_wheelUp = _wheelDown = false;
Common::Event event;
while (g_system->getEventManager()->pollEvent(event)) {
switch (event.type) {
case Common::EVENT_QUIT:
case Common::EVENT_RTL:
return;
case Common::EVENT_KEYDOWN:
// Check for debugger
if (event.kbd.keycode == Common::KEYCODE_d && (event.kbd.flags & Common::KBD_CTRL)) {
// Attach to the debugger
_vm->_debugger->attach();
_vm->_debugger->onFrame();
} else {
keyControl(event.kbd.keycode, true);
}
return;
case Common::EVENT_KEYUP:
keyControl(event.kbd.keycode, false);
return;
case Common::EVENT_MOUSEMOVE:
_mousePos = event.mouse;
_mouseCol = _mousePos.x / 8;
_mouseRow = _mousePos.y / 8;
break;
case Common::EVENT_LBUTTONDOWN:
_leftButton = true;
return;
case Common::EVENT_LBUTTONUP:
_leftButton = false;
return;
case Common::EVENT_RBUTTONDOWN:
_rightButton = true;
return;
case Common::EVENT_RBUTTONUP:
_rightButton = false;
return;
case Common::EVENT_MBUTTONDOWN:
_middleButton = true;
return;
case Common::EVENT_MBUTTONUP:
_middleButton = false;
return;
case Common::EVENT_WHEELUP:
_wheelUp = true;
return;
case Common::EVENT_WHEELDOWN:
_wheelDown = true;
return;
default:
break;
}
}
}
void
IOManagerEPoll::idle()
{
epoll_event events[64];
while (true) {
unsigned long long nextTimeout;
if (stopping(nextTimeout))
return;
int rc = -1;
errno = EINTR;
while (rc < 0 && errno == EINTR) {
int timeout = -1;
if (nextTimeout != ~0ull)
timeout = (int)(nextTimeout / 1000) + 1;
rc = epoll_wait(m_epfd, events, 64, timeout);
if (rc < 0 && errno == EINTR)
nextTimeout = nextTimer();
}
MORDOR_LOG_LEVEL(g_log, rc < 0 ? Log::ERROR : Log::VERBOSE) << this
<< " epoll_wait(" << m_epfd << "): " << rc << " (" << errno << ")";
if (rc < 0)
MORDOR_THROW_EXCEPTION_FROM_LAST_ERROR_API("epoll_wait");
std::vector<boost::function<void ()> > expired = processTimers();
schedule(expired.begin(), expired.end());
for(int i = 0; i < rc; ++i) {
epoll_event &event = events[i];
if (event.data.fd == m_tickleFds[0]) {
unsigned char dummy;
int rc2 = read(m_tickleFds[0], &dummy, 1);
MORDOR_VERIFY(rc2 == 1);
MORDOR_LOG_VERBOSE(g_log) << this << " received tickle";
continue;
}
bool err = event.events & (EPOLLERR | EPOLLHUP);
boost::mutex::scoped_lock lock(m_mutex);
std::map<int, AsyncEvent>::iterator it =
m_pendingEvents.find(event.data.fd);
if (it == m_pendingEvents.end())
continue;
AsyncEvent &e = it->second;
MORDOR_LOG_TRACE(g_log) << " epoll_event {"
<< (epoll_events_t)event.events << ", " << event.data.fd
<< "}, registered for " << (epoll_events_t)e.event.events;
if ((event.events & EPOLLERR) && (e.event.events & EPOLLERR)) {
if (e.m_dgError)
e.m_schedulerError->schedule(e.m_dgError);
else
e.m_schedulerError->schedule(e.m_fiberError);
// Block other events from firing
e.m_dgError = NULL;
e.m_fiberError.reset();
e.m_dgIn = NULL;
e.m_fiberIn.reset();
e.m_dgOut = NULL;
e.m_fiberOut.reset();
event.events = 0;
e.event.events = 0;
}
if ((event.events & EPOLLHUP) && (e.event.events & EPOLLHUP)) {
if (e.m_dgClose)
e.m_schedulerError->schedule(e.m_dgClose);
else
e.m_schedulerError->schedule(e.m_fiberClose);
// Block write event from firing
e.m_dgOut = NULL;
e.m_fiberOut.reset();
e.m_dgClose = NULL;
e.m_fiberClose.reset();
event.events &= EPOLLOUT;
e.event.events &= EPOLLOUT;
err = false;
}
if (((event.events & EPOLLIN) ||
err) && (e.event.events & EPOLLIN)) {
if (e.m_dgIn)
e.m_schedulerIn->schedule(e.m_dgIn);
else
e.m_schedulerIn->schedule(e.m_fiberIn);
e.m_dgIn = NULL;
e.m_fiberIn.reset();
event.events |= EPOLLIN;
}
if (((event.events & EPOLLOUT) ||
err) && (e.event.events & EPOLLOUT)) {
if (e.m_dgOut)
e.m_schedulerOut->schedule(e.m_dgOut);
else
e.m_schedulerOut->schedule(e.m_fiberOut);
e.m_dgOut = NULL;
e.m_fiberOut.reset();
event.events |= EPOLLOUT;
}
e.event.events &= ~event.events;
int op = e.event.events == 0 ? EPOLL_CTL_DEL : EPOLL_CTL_MOD;
int rc2 = epoll_ctl(m_epfd, op, event.data.fd,
&e.event);
MORDOR_LOG_LEVEL(g_log, rc2 ? Log::ERROR : Log::VERBOSE) << this
<< " epoll_ctl(" << m_epfd << ", " << (epoll_ctl_op_t)op << ", "
<< event.data.fd << ", " << (epoll_events_t)e.event.events << "): " << rc2
<< " (" << errno << ")";
if (rc2)
MORDOR_THROW_EXCEPTION_FROM_LAST_ERROR_API("epoll_ctl");
if (op == EPOLL_CTL_DEL)
m_pendingEvents.erase(it);
}
Fiber::yield();
}
}
