#include <semaphore.h>
#include <unistd.h>
#include "list.hpp"
#include "globals.hpp" // freelist list1 list2
#include "producer.hpp"

#define wait(x) sem_wait(&x)
#define sgnl(x) sem_post(&x)

void produce(block* b);

void *producer (void *) {
   while (true) {
      wait(semfl); // wait for freelist not empty
      wait(mutfl); // lock freelist
      block *b = list_unlink(freelist);
      sgnl(mutfl); // unlock freelist
      //* Produce information in block b
      produce(b);
      wait(mutl1); // lock l1
      list_link(list1, b);
      sgnl(mutl1); // unlock l1
      sgnl(seml1);
   }
   return nullptr;
}

void produce(block *b) {
   b->data++;
   usleep(65);
   return;
}