FairMQ/examples/qc/qCDispatcher.cxx

/********************************************************************************
 *    Copyright (C) 2014 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH    *
 *                                                                              *
 *              This software is distributed under the terms of the             *
 *              GNU Lesser General Public Licence (LGPL) version 3,             *
 *                  copied verbatim in the file "LICENSE"                       *
 ********************************************************************************/

#include <fairmq/Device.h>
#include <fairmq/runDevice.h>

struct QCDispatcher : fair::mq::Device
{
    QCDispatcher()
        : fDoQC(false)
    {
        OnData("data1", &QCDispatcher::HandleData);
    }

    void InitTask() override
    {
        GetConfig()->Subscribe<std::string>("qcdevice", [&](const std::string& key, std::string value) {
            if (key == "qc") {
                if (value == "active") {
                    fDoQC.store(true);
                } else if (value == "inactive") {
                    fDoQC.store(false);
                }
            }
        });
    }

    bool HandleData(fair::mq::MessagePtr& msg, int)
    {
        if (fDoQC.load() == true) {
            fair::mq::MessagePtr msgCopy(NewMessage());
            msgCopy->Copy(*msg);
            if (Send(msg, "qc") < 0) {
                return false;
            }
        }

        if (Send(msg, "data2") < 0) {
            return false;
        }

        return true;
    }

    void ResetTask() override { GetConfig()->Unsubscribe<std::string>("qcdevice"); }

  private:
    std::atomic<bool> fDoQC;
};

void addCustomOptions(boost::program_options::options_description& /*options*/) {}
std::unique_ptr<fair::mq::Device> getDevice(fair::mq::ProgOptions& /*config*/)
{
    return std::make_unique<QCDispatcher>();
}