private Fork GetOrCreateFork(Fork[] forks, int i)
{
var fork = forks[i];
if (fork != null)
{
return(fork);
}
fork = new Fork(i);
forks[i] = fork;
return(fork);
}
public Philosopher(Fork left, Fork right, string name)
{
_left = left ?? throw new ArgumentNullException(nameof(left));
_right = right ?? throw new ArgumentNullException(nameof(right));
Name = name ?? throw new ArgumentNullException(nameof(name));
var random = new Random();
_thinkDurationMs = random.Next(1, MaxThinkDurationMs);
_eatDurationMs = random.Next(1, MaxEatDurationMs);
var thread = new Thread(Start);
thread.Start();
}
public DiningTable(int philosopherCount)
{
if (philosopherCount < 0)
{
throw new ArgumentException("Must be at least 0", nameof(philosopherCount));
}
_philosophers = new Philosopher[philosopherCount];
var forks = new Fork[philosopherCount];
for (int i = 0; i < _philosophers.Length; i++)
{
var forkLeft = GetOrCreateFork(forks, i > 0 ? i - 1 : philosopherCount - 1);
var forkRight = GetOrCreateFork(forks, i);
var philosopher = new Philosopher(forkLeft, forkRight, i.ToString());
_philosophers[i] = philosopher;
}
}