cloud/blockstore/libs/service/device_handler.h - main - githubmirror/nbs

cloud/blockstore/libs/service/device_handler.h

65 строк2 KB

Kirill Pleshivtsev

Remove outdated TChecksumStorageWrapper (#5264)

20 фев 2026, 12:25

20 фев 2026, 12:25fc7f2c2

#pragma once

#include "public.h"

#include "request.h"

#include <cloud/storage/core/libs/common/guarded_sglist.h>

namespace NCloud::NBlockStore {

////////////////////////////////////////////////////////////////////////////////

struct IDeviceHandler
{
    virtual ~IDeviceHandler() = default;

    virtual NThreading::TFuture<NProto::TReadBlocksLocalResponse> Read(
        TCallContextPtr callContext,
        ui64 from,
        ui64 length,
        TGuardedSgList sgList,
        const TString& checkpointId) = 0;

    virtual NThreading::TFuture<NProto::TWriteBlocksLocalResponse> Write(
        TCallContextPtr callContext,
        ui64 from,
        ui64 length,
        TGuardedSgList sgList) = 0;

    virtual NThreading::TFuture<NProto::TZeroBlocksResponse> Zero(
        TCallContextPtr callContext,
        ui64 from,
        ui64 length) = 0;

    virtual TStorageBuffer AllocateBuffer(size_t bytesCount) = 0;
};

////////////////////////////////////////////////////////////////////////////////

struct TDeviceHandlerParams
{
    IStoragePtr Storage;
    TString DiskId;
    TString ClientId;
    ui32 BlockSize = 0;
    ui32 MaxZeroBlocksSubRequestSize = 0;
    bool UnalignedRequestsDisabled = false;
    NProto::EStorageMediaKind StorageMediaKind = NProto::STORAGE_MEDIA_DEFAULT;
};

struct IDeviceHandlerFactory
{
    virtual ~IDeviceHandlerFactory() = default;

    virtual IDeviceHandlerPtr CreateDeviceHandler(
        TDeviceHandlerParams params) = 0;
};

////////////////////////////////////////////////////////////////////////////////

IDeviceHandlerFactoryPtr CreateDefaultDeviceHandlerFactory();
IDeviceHandlerFactoryPtr CreateDeviceHandlerFactoryForTesting(
    ui32 maxSubRequestSize);

}   // namespace NCloud::NBlockStore