void TaskQueue::TaskThreadPool::AddQueueTask(TaskQueue *queue, Task &&task) {
QMutexLocker lock(&queues_mutex_);
queue->tasks_.push_back(new Task(std_::move(task)));
auto list_was_empty = queue_list_.Empty(kAllQueuesList);
auto threads_count = threads_.size();
auto all_threads_processing = (threads_count == tasks_in_process_);
auto some_threads_are_vacant = !all_threads_processing && list_was_empty;
auto will_create_thread = !some_threads_are_vacant && (threads_count < MaxThreadsCount);
if (!queue->SerialTaskInProcess()) {
if (!queue_list_.IsInList(queue)) {
queue_list_.Register(queue);
}
}
if (will_create_thread) {
threads_.push_back(MakeThread([this]() {
ThreadFunction();
}));
threads_.back()->start();
} else if (some_threads_are_vacant) {
t_assert(threads_count > tasks_in_process_);
thread_condition_.wakeOne();
}
}
// Default Run implementation
int Thread::Run()
{
if (!ThreadFunction)
return 0;
int ret = ThreadFunction(this, UserHandle);
return ret;
}
// Default Run implementation
int Thread::Run()
{
// Call pointer to function, if available.
return (ThreadFunction) ? ThreadFunction(this, UserHandle) : 0;
}
