//-----------------------------------------------------
// interruptor2.cc: stallings implementado con un interruptor
//-----------------------------------------------------

#include "interruptor2.h"

#include <chrono>
#include <iostream>
#include <latch>
#include <mutex>
#include <thread>

//-----------------------------------------------------

using namespace std::literals;

//-----------------------------------------------------

const size_t N = 1;

//-----------------------------------------------------

std::latch latch(2 * N);
std::mutex no_escritor;  // exclusion mutua
interruptor2 i; // protección lectores frente a escritores

//-----------------------------------------------------

void seccion_critica(char c)
{
    for (char i = 0; i < 10; ++i)
        std::cout << c;
    std::cout << '\n';
}

//-----------------------------------------------------

void lector(char c)
{
    latch.arrive_and_wait();
    while (true)
    {
        i.lock(no_escritor);
        seccion_critica(c);
        i.unlock(no_escritor);
    }
}

//-----------------------------------------------------

void escritor(char c)
{
    latch.arrive_and_wait();
    while (true)
    {
        no_escritor.lock();
        seccion_critica(c);
        no_escritor.unlock();
    }
}

//-----------------------------------------------------

int main()
{
    for (size_t i = 0; i < N; ++i)
    {
        std::thread(lector, '0' + i).detach();
        std::thread(escritor, 'a' + i).detach();
    }

    std::this_thread::sleep_for(10ms);
}

//-----------------------------------------------------