UioBackend.h

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// SPDX-FileCopyrightText: Deutsches Elektronen-Synchrotron DESY, MSK, ChimeraTK Project <chimeratk-support@desy.de>
// SPDX-License-Identifier: LGPL-3.0-or-later
#pragma once
 
#include "NumericAddressedBackend.h"
#include "UioAccess.h"
 
#include <thread>
 
namespace ChimeraTK {
 
  class UioBackend : public NumericAddressedBackend {
   private:
    std::shared_ptr<UioAccess> _uioAccess;
 
    std::thread _interruptWaitingThread;
    std::atomic<bool> _stopInterruptLoop{false}; // Used to shut down thread
 
    void waitForInterruptLoop(std::promise<void> subscriptionDonePromise);
 
    /* data */
   public:
    UioBackend(
        const std::string& deviceName, const std::string& mapFileName, const std::string& dataConsistencyKeyDescriptor);
    ~UioBackend() override;
 
    static boost::shared_ptr<DeviceBackend> createInstance(
        std::string address, std::map<std::string, std::string> parameters);
 
    void open() override;
    void closeImpl() override;
 
    size_t minimumTransferAlignment([[maybe_unused]] uint64_t bar) const override { return 4; }
 
    bool barIndexValid(uint64_t bar) override;
 
    void read(uint64_t bar, uint64_t address, int32_t* data, size_t sizeInBytes) override;
    void write(uint64_t bar, uint64_t address, int32_t const* data, size_t sizeInBytes) override;
    std::future<void> activateSubscription(
        uint32_t interruptNumber, boost::shared_ptr<async::DomainImpl<std::nullptr_t>> asyncDomain) override;
 
    std::string readDeviceInfo() override;
 
    boost::shared_ptr<async::DomainImpl<std::nullptr_t>> _asyncDomain;
  };
 
} // namespace ChimeraTK