util/cxx_config/stats.cc

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/**
 * @file
 *
 *  C++-only configuration stats handling example
 *
 *  Register with: Stats::registerHandlers(statsReset, statsDump)
 */

#include "base/statistics.hh"
#include "stats.hh"

namespace CxxConfig
{

void statsPrepare()
{
    std::list<Stats::Info *> stats = Stats::statsList();

    /* gather_stats -> prepare */
    for (auto i = stats.begin(); i != stats.end(); ++i)
        (*i)->prepare();
}

void statsDump()
{
    std::cerr << "Stats dump\n";

    Stats::processDumpQueue();

    std::list<Stats::Info *> stats = Stats::statsList();

    statsPrepare();

    /* gather_stats -> convert_value */
    for (auto i = stats.begin(); i != stats.end(); ++i) {
        Stats::Info *stat = *i;

        Stats::ScalarInfo *scalar = dynamic_cast<Stats::ScalarInfo *>(stat);
        Stats::VectorInfo *vector = dynamic_cast<Stats::VectorInfo *>(stat);

        if (scalar) {
            std::cerr << "SCALAR " << stat->name << ' '
                << scalar->value() << '\n';
        } else if (vector) {
            Stats::VResult results = vector->value();

            unsigned int index = 0;
            for (auto e = results.begin(); e != results.end(); ++e) {
                std::cerr << "VECTOR " << stat->name << '[' << index
                    << "] " << (*e) << '\n';
                index++;
            }
            std::cerr << "VTOTAL " << stat->name << ' '
                << vector->total() << '\n';
        } else {
            std::cerr << "?????? " << stat->name << '\n';
        }
    }
}

void statsReset()
{
    std::cerr << "Stats reset\n";

    Stats::processResetQueue();
}

void statsEnable()
{
    std::list<Stats::Info *> stats = Stats::statsList();

    for (auto i = stats.begin(); i != stats.end(); ++i)
        (*i)->enable();
}

}