ydb/library/cpp/actors/core/cpu_manager.h

#pragma once

#include "actorsystem.h"
#include "executor_pool_basic.h"
#include "executor_pool_io.h"
#include "executor_pool_united.h"

namespace NActors {
    class TCpuManager : public TNonCopyable {
        const ui32 ExecutorPoolCount;
        TArrayHolder<TAutoPtr<IExecutorPool>> Executors;
        THolder<TUnitedWorkers> UnitedWorkers;
        THolder<IBalancer> Balancer;
        TCpuManagerConfig Config;
    public:
        explicit TCpuManager(THolder<TActorSystemSetup>& setup)
            : ExecutorPoolCount(setup->GetExecutorsCount())
            , Balancer(setup->Balancer)
            , Config(setup->CpuManager)
        {
            if (setup->Executors) { // Explicit mode w/o united pools
                Executors.Reset(setup->Executors.Release());
                for (ui32 excIdx = 0; excIdx != ExecutorPoolCount; ++excIdx) {
                    IExecutorPool* pool = Executors[excIdx].Get();
                    Y_VERIFY(dynamic_cast<TUnitedExecutorPool*>(pool) == nullptr,
                        "united executor pool is prohibited in explicit mode of NActors::TCpuManager");
                }
            } else {
                Setup();
            }
        }

        void Setup();
        void PrepareStart(TVector<NSchedulerQueue::TReader*>& scheduleReaders, TActorSystem* actorSystem);
        void Start();
        void PrepareStop();
        void Shutdown();
        void Cleanup();

        ui32 GetExecutorsCount() const {
            return ExecutorPoolCount;
        }

        IExecutorPool* GetExecutorPool(ui32 poolId) {
            return Executors[poolId].Get();
        }

        void GetPoolStats(ui32 poolId, TExecutorPoolStats& poolStats, TVector<TExecutorThreadStats>& statsCopy) const {
            if (poolId < ExecutorPoolCount) {
                Executors[poolId]->GetCurrentStats(poolStats, statsCopy);
            }
        }

    private:
        IExecutorPool* CreateExecutorPool(ui32 poolId);
    };
}