Method Purge

library/cpp/neh/conn_cache.h:91–119

close/remove part of the connections from cache

            //close/remove part of the connections from cache
            size_t Purge(size_t addrId, size_t frac256) {
                TConnList& cl = Lst_.Get(addrId);
                size_t qsize = cl.Size();
                if (!qsize) {
                    return 0;
                }

                size_t purgeCounter = ((qsize * frac256) >> 8);
                if (!purgeCounter && qsize >= 2) {
                    purgeCounter = 1;
                }

                size_t pc = 0;
                {
                    TConn* conn;
                    while (purgeCounter-- && cl.Dequeue(&conn)) {
                        conn->SetCached(false);
                        if (conn->IsValid()) {
                            conn->Close();
                        }
                        CachedConn_.Dec();
                        conn->UnRef();
                        ++pc;
                    }
                }
                pc += Validate(cl);

                return pc;
            }

        private:
            inline TConnList& ConnList(size_t addrId) {