bool ThreadPool::stop() {
if (Thread::CurrentID() != mDriverThread) {
return false;
}
mTasksAccess.lock();
if (mState != TPS_RUNNING) {
// pool is not running
mTasksAccess.unlock();
return true;
}
mState = TPS_STOPPED;
mTasksChanged.notifyAll();
mTasksAccess.unlock();
mRestartWorkersCount = numWorkers();
// wait all workers to be done
mWorkersAccess.lock();
while (mWorkers.size() > 0) {
mWorkersChanged.wait(mWorkersAccess);
}
mWorkersAccess.unlock();
return true;
}
bool
ThreadPool::submitOne(TaskExecutor *executor) {
if (numWorkers() == 0)
return false;
// Find next worker in round-robin fashion.
size_t id = nextId_;
nextId_ = (nextId_ + 1) % workers_.length();
return workers_[id]->submit(executor);
}
