Method GetVersions

library/cpp/par/par_context.cpp:394–407

    }

    void TContextDistributor::GetVersions(int envId, int* hostIdCount, THashMap<int, int>* envId2version) {
        CHROMIUM_TRACE_FUNCTION();
        TGuard<TMutex> g(Sync);
        Y_ASSERT(EnvId2Info.find(envId) != EnvId2Info.end() && "unregistered envId");
        const TFullCtxInfo& dst = EnvId2Info[envId];
        *hostIdCount = dst.Data.ysize();
        Y_ASSERT(dst.Data.ysize() == dst.HostId2Computer.ysize());
        envId2version->clear();
        for (int curEnvId = envId; curEnvId;) {
            const TFullCtxInfo& parent = EnvId2Info[curEnvId];
            (*envId2version)[curEnvId] = parent.MaxVersion;
            curEnvId = parent.ParentEnvId;
        }
    }

    bool TContextDistributor::GetReadyMask(const THashMap<int, int>& envId2Version,
                                           TVector<TVector<int>>* hostId2Computer,