Method synchronized

3rdparty/libprocess/src/run_queue.hpp:56–66

  bool extract(ProcessBase* process)
  {
    synchronized (mutex) {
      std::list<ProcessBase*>::iterator it = std::find(
          processes.begin(),
          processes.end(),
          process);

      if (it != processes.end()) {
        processes.erase(it);
        return true;
      }
    }

    return false;
  }