#include <string>
#include <cstdio>
#include <chrono>
#include <atomic>
#include <system_error>
#include "error_category_test.h"

constexpr unsigned int loop_count = 100000000u;

int main(int argc, char *argv[])
{
    volatile int err = argc>10;

    std::atomic_signal_fence(std::memory_order_acq_rel);
    auto start = std::chrono::steady_clock::now();
    for (unsigned int i = 0u; i < loop_count; ++i)
    {
        std::atomic_signal_fence(std::memory_order_acq_rel);
        experimental::error_code ec(err, code_category);
        if (ec)
            std::puts("error");
        std::atomic_signal_fence(std::memory_order_acq_rel);
    }
    auto stop = std::chrono::steady_clock::now();
    std::atomic_signal_fence(std::memory_order_acq_rel);

    unsigned long dur = std::chrono::duration_cast< std::chrono::microseconds >(stop - start).count();

    std::printf("Experimental test: %lu usec, %f tests per second\n", dur, static_cast< double >(loop_count) * 1000000.0 / static_cast< double >(dur));

    std::atomic_signal_fence(std::memory_order_acq_rel);
    start = std::chrono::steady_clock::now();
    for (unsigned int i = 0u; i < loop_count; ++i)
    {
        std::atomic_signal_fence(std::memory_order_acq_rel);
        experimental2::error_code ec(err, code_category);
        if (ec)
            std::puts("error");
        std::atomic_signal_fence(std::memory_order_acq_rel);
    }
    stop = std::chrono::steady_clock::now();
    std::atomic_signal_fence(std::memory_order_acq_rel);

    dur = std::chrono::duration_cast< std::chrono::microseconds >(stop - start).count();

    std::printf("Experimental2 test: %lu usec, %f tests per second\n", dur, static_cast< double >(loop_count) * 1000000.0 / static_cast< double >(dur));

    std::atomic_signal_fence(std::memory_order_acq_rel);
    start = std::chrono::steady_clock::now();
    for (unsigned int i = 0u; i < loop_count; ++i)
    {
        std::atomic_signal_fence(std::memory_order_acq_rel);
        std::error_code ec(err, std::system_category());
        if (ec)
            std::puts("error");
        std::atomic_signal_fence(std::memory_order_acq_rel);
    }
    stop = std::chrono::steady_clock::now();
    std::atomic_signal_fence(std::memory_order_acq_rel);

    dur = std::chrono::duration_cast< std::chrono::microseconds >(stop - start).count();

    std::printf("std test: %lu usec, %f tests per second\n", dur, static_cast< double >(loop_count) * 1000000.0 / static_cast< double >(dur));

    return 0;
}