void eat(int p_id)
{
int result = acquire_forks(p_id);
if(result == 1)
{
printf("\nAgent %d is eating\n", p_id);
printf("\nForks %d and %d are locked!\n", get_left_fork(p_id), get_right_fork(p_id));
wait(generate_random_wait(p_id));
printf("OM NOM NOM NOM NOM NOM NOM");
release_forks(p_id);
printf("\nForks %d and %d are unlocked!\n", get_left_fork(p_id), get_right_fork(p_id));
printf("Agent %d is mildly satisfied and is returning to the arts life\n", p_id);
pthread_mutex_lock(&eat_lock);
iterations++;
printf("\niteration #%d\n", iterations);
pthread_mutex_unlock(&eat_lock);
think(p_id);
}
else
{
think(p_id);
}
}
void * philosopher(void * para) {
int mine = (int)para;
int i = 0;
while(i < 2) {
i++;
// usleep(mine);
get_left_fork(mine);
get_right_fork(mine);
eat();
put_left_fork(mine);
put_right_fork(mine);
}
printf("%d is finished\n", mine+1);
return 0L;
}
int acquire_forks(int p_id)
{
printf("\nAgent %d is acquiring forks\n", p_id);
if(pthread_mutex_trylock(&fork[get_left_fork(p_id)]) &&
pthread_mutex_trylock(&fork[get_right_fork(p_id)]))
{
//acquired -- invoke eating
printf("\nAyyy lmao, agent %d is obtaining forks\n", p_id);
//printf("\nid %d, left fork %d, right fork %d\n", p_id, get_left_fork(p_id), get_right_fork(p_id));
return 1;
}
else
{
//already acquired by another agent -- return to thinking
printf("\nAgent %d cannot obtain forks -- thinking\n", p_id);
return 0;
}
}
void release_forks(int p_id)
{
pthread_mutex_unlock(&fork[get_left_fork(p_id)]);
pthread_mutex_unlock(&fork[get_right_fork(p_id)]);
}
