Method releaseSecondaryThread

src/UtilsCtrl/ThreadPool/UThreadPool.cpp:186–206

CStatus UThreadPool::releaseSecondaryThread(CInt size) {
    CGRAPH_FUNCTION_BEGIN

    // 先将所有已经结束的，给删掉
    CGRAPH_LOCK_GUARD lock(st_mutex_);
    for (auto iter = secondary_threads_.begin(); iter != secondary_threads_.end(); ) {
        !(*iter)->done_ ? secondary_threads_.erase(iter++) : iter++;
    }

    CGRAPH_RETURN_ERROR_STATUS_BY_CONDITION((size > static_cast<CInt>(secondary_threads_.size())),    \
                                            "cannot release [" + std::to_string(size) + "] secondary thread,"    \
                                            + "only [" + std::to_string(secondary_threads_.size()) + "] left.")

    // 再标记几个需要删除的信息
    for (auto iter = secondary_threads_.begin();
         iter != secondary_threads_.end() && size-- > 0; ) {
        (*iter)->done_ = false;
        ++iter;
    }
    CGRAPH_FUNCTION_END
}


CIndex UThreadPool::dispatch(const CIndex origIndex) {