BoardReaderApp.cc

#define TRACE_NAME (app_name + "_BoardReaderApp").c_str()
#include "artdaq/DAQdata/Globals.hh"
#include "artdaq/Application/BoardReaderApp.hh"

artdaq::BoardReaderApp::BoardReaderApp()
    : fragment_receiver_ptr_(nullptr)
{
}

// *******************************************************************
// *** The following methods implement the state machine operations.
// *******************************************************************

bool artdaq::BoardReaderApp::do_initialize(fhicl::ParameterSet const& pset, uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = true;

    // in the following block, we first destroy the existing BoardReader
    // instance, then create a new one.  Doing it in one step does not
    // produce the desired result since that creates a new instance and
    // then deletes the old one, and we need the opposite order.
    TLOG(TLVL_DEBUG) << "Initializing first deleting old instance " << (void*)fragment_receiver_ptr_.get();
    fragment_receiver_ptr_.reset(nullptr);
    fragment_receiver_ptr_.reset(new BoardReaderCore(*this));
    TLOG(TLVL_DEBUG) << "Initializing new BoardReaderCore at " << (void*)fragment_receiver_ptr_.get() << " with pset " << pset.to_string();
    external_request_status_ = fragment_receiver_ptr_->initialize(pset, timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error initializing ";
        report_string_.append(app_name + " ");
        report_string_.append("with ParameterSet = \"" + pset.to_string() + "\".");
    }

    TLOG(TLVL_DEBUG) << "do_initialize(fhicl::ParameterSet, uint64_t, uint64_t): "
        << "Done initializing.";
    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_start(art::RunID id, uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->start(id, timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error starting ";
        report_string_.append(app_name + " ");
        report_string_.append("for run number ");
        report_string_.append(boost::lexical_cast<std::string>(id.run()));
        report_string_.append(", timeout ");
        report_string_.append(boost::lexical_cast<std::string>(timeout));
        report_string_.append(", timestamp ");
        report_string_.append(boost::lexical_cast<std::string>(timestamp));
        report_string_.append(".");
    }

    boost::thread::attributes attrs;
    attrs.set_stack_size(4096 * 2000); // 8 MB
    try {
        fragment_processing_thread_ = boost::thread(attrs, boost::bind(&BoardReaderCore::process_fragments, fragment_receiver_ptr_.get()));
    }
    catch (const boost::exception& e)
    {
        TLOG(TLVL_ERROR) << "Caught boost::exception starting Fragment Processing thread: " << boost::diagnostic_information(e) << ", errno=" << errno;
        std::cerr << "Caught boost::exception starting Fragment Processing thread: " << boost::diagnostic_information(e) << ", errno=" << errno << std::endl;
        exit(5);
    }
    /*
    fragment_processing_future_ =
    std::async(std::launch::async, &BoardReaderCore::process_fragments,
    fragment_receiver_ptr_.get());*/

    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_stop(uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->stop(timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error stopping ";
        report_string_.append(app_name + ".");
        return false;
    }
    if (fragment_processing_thread_.joinable())
    {
        TLOG(TLVL_DEBUG) << "Joining fragment processing thread";
        fragment_processing_thread_.join();
    }

    TLOG(TLVL_DEBUG) << "BoardReader Stopped. Getting run statistics";
    int number_of_fragments_sent = -1;
    if(fragment_receiver_ptr_) number_of_fragments_sent = fragment_receiver_ptr_->GetFragmentsProcessed();
    TLOG(TLVL_DEBUG) << "do_stop(uint64_t, uint64_t): "
        << "Number of fragments sent = " << number_of_fragments_sent
        << ".";

    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_pause(uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->pause(timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error pausing ";
        report_string_.append(app_name + ".");
    }

    if(fragment_processing_thread_.joinable()) fragment_processing_thread_.join();
    int number_of_fragments_sent = fragment_receiver_ptr_->GetFragmentsProcessed();
    TLOG(TLVL_DEBUG) << "do_pause(uint64_t, uint64_t): "
        << "Number of fragments sent = " << number_of_fragments_sent
        << ".";

    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_resume(uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->resume(timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error resuming ";
        report_string_.append(app_name + ".");
    }

    boost::thread::attributes attrs;
    attrs.set_stack_size(4096 * 2000); // 8 MB
    fragment_processing_thread_ = boost::thread(attrs, boost::bind(&BoardReaderCore::process_fragments, fragment_receiver_ptr_.get()));
    /*
        fragment_processing_future_ =
            std::async(std::launch::async, &BoardReaderCore::process_fragments,
                       fragment_receiver_ptr_.get());*/

    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_shutdown(uint64_t timeout)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->shutdown(timeout);
        // 02-Jun-2018, ELF & KAB: it's very, very unlikely that the following call is needed,
        // but just in case...
    if (fragment_processing_thread_.joinable()) fragment_processing_thread_.join();
    if (!external_request_status_)
    {
        report_string_ = "Error shutting down ";
        report_string_.append(app_name + ".");
    }
    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_soft_initialize(fhicl::ParameterSet const& pset, uint64_t timeout, uint64_t timestamp)
{
    report_string_ = "";
    external_request_status_ = fragment_receiver_ptr_->soft_initialize(pset, timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error soft-initializing ";
        report_string_.append(app_name + " ");
        report_string_.append("with ParameterSet = \"" + pset.to_string() + "\".");
    }
    return external_request_status_;
}

bool artdaq::BoardReaderApp::do_reinitialize(fhicl::ParameterSet const& pset, uint64_t timeout, uint64_t timestamp)
{
    external_request_status_ = fragment_receiver_ptr_->reinitialize(pset, timeout, timestamp);
    if (!external_request_status_)
    {
        report_string_ = "Error reinitializing ";
        report_string_.append(app_name + " ");
        report_string_.append("with ParameterSet = \"" + pset.to_string() + "\".");
    }
    return external_request_status_;
}

void artdaq::BoardReaderApp::BootedEnter()
{
    TLOG(TLVL_DEBUG) << "Booted state entry action called.";

    // the destruction of any existing BoardReaderCore has to happen in the
    // Booted Entry action rather than the Initialized Exit action because the
    // Initialized Exit action is only called after the "init" transition guard
    // condition is executed.
    fragment_receiver_ptr_.reset(nullptr);
}

bool artdaq::BoardReaderApp::do_meta_command(std::string const& command, std::string const& arg)
{
    external_request_status_ = fragment_receiver_ptr_->metaCommand(command, arg);
    if (!external_request_status_)
    {
        report_string_ = "Error running meta-command on ";
        report_string_.append(app_name + " ");
        report_string_.append("with command = \"" + command + "\", arg = \"" + arg + "\".");
    }
    return external_request_status_;
}

std::string artdaq::BoardReaderApp::report(std::string const& which) const
{
    std::string resultString;

    // if all that is requested is the latest state change result, return it
    if (which == "transition_status")
    {
        if (report_string_.length() > 0) { return report_string_; }
        else { return "Success"; }
    }

    //if (report_string_.length() > 0) {
    //  resultString.append("*** Overall status message:\r\n");
    //  resultString.append(report_string_ + "\r\n");
    //  resultString.append("*** Requested report response:\r\n");
    //}

    // pass the request to the BoardReaderCore instance, if it's available
    if (fragment_receiver_ptr_.get() != 0)
    {
        resultString.append(fragment_receiver_ptr_->report(which));
    }
    else
    {
        resultString.append("This BoardReader has not yet been initialized and ");
        resultString.append("therefore can not provide reporting.");
    }

    return resultString;
}