condition variable loop removed

Just initial check required, every notify (task added/thread stopped) makes further checks useless

Author: Youka

ThreadPool.hpp

@@ -59,8 +59,8 @@ class ThreadPool {
 
                         {
                             std::unique_lock<std::mutex> lock(this->queue_mutex);
-                            this->condition.wait(lock,
-                                [this]{ return this->stop || !this->tasks.empty(); });
+                            if(!this->stop && this->tasks.empty())
+                                this->condition.wait(lock);
                             if(this->stop && this->tasks.empty())
                                 return;
                             task = std::move(this->tasks.front());