bool SchedulingAgent::onTrigger(std::shared_ptr<core::Processor> processor, core::ProcessContext *processContext, core::ProcessSessionFactory *sessionFactory) {
if (processor->isYield())
return false;
// No need to yield, reset yield expiration to 0
processor->clearYield();
if (!hasWorkToDo(processor))
// No work to do, yield
return true;
if (hasTooMuchOutGoing(processor))
// need to apply backpressure
return true;
processor->incrementActiveTasks();
try {
processor->onTrigger(processContext, sessionFactory);
processor->decrementActiveTask();
} catch (Exception &exception) {
// Normal exception
logger_->log_debug("Caught Exception %s", exception.what());
processor->decrementActiveTask();
} catch (std::exception &exception) {
logger_->log_debug("Caught Exception %s", exception.what());
processor->yield(admin_yield_duration_);
processor->decrementActiveTask();
} catch (...) {
logger_->log_debug("Caught Exception during SchedulingAgent::onTrigger");
processor->yield(admin_yield_duration_);
processor->decrementActiveTask();
}
return false;
}
void
EventLoop::messagePump()
{
MORDOR_LOG_DEBUG(g_log) << m_messageWindow << " starting message pump";
while (!hasWorkToDo() && !stopping()) {
MSG msg;
BOOL bRet = GetMessageW(&msg, NULL, 0, 0);
if (bRet < 0)
MORDOR_THROW_EXCEPTION_FROM_LAST_ERROR_API("GetMessageW");
if (bRet == 0) {
stop();
return;
}
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
MORDOR_LOG_DEBUG(g_log) << m_messageWindow << " exiting message pump";
}