80     return static_cast<int>(bgthreads_.size()) > total_threads_limit_;  in HasExcessiveThread()
87     return HasExcessiveThread() && thread_id == bgthreads_.size() - 1;  in IsLastExcessiveThread()
126   std::vector<port::Thread> bgthreads_;  member
144       bgthreads_() {  in Impl()
148 ThreadPoolImpl::Impl::~Impl() { assert(bgthreads_.size() == 0U); }  in ~Impl()
165   for (auto& th : bgthreads_) {  in JoinThreads()
169   bgthreads_.clear();  in JoinThreads()
212       auto& terminating_thread = bgthreads_.back();  in BGThread()
214       bgthreads_.pop_back();  in BGThread()
335   while ((int)bgthreads_.size() < total_threads_limit_) {  in StartBGThreads()
338       new BGThreadMetadata(this, bgthreads_.size()));  in StartBGThreads()
350     thread_name_stream << bgthreads_.size();  in StartBGThreads()
354     bgthreads_.push_back(std::move(p_t));  in StartBGThreads()