public static void SynchronizeAtBankLevelInterlocked()
{
var tasks = new List <Task>();
var number = new Random();
var bank = new BankFactory().Build(BankType.InterlockedBank);
tasks.Add(Task.Factory.StartNew(() =>
{
for (int j = 0; j < 1000; j++)
{
bank.Deposit(1);
Console.WriteLine($"Task: {Task.CurrentId} is depositing 1 buck.");
}
}));
tasks.Add(Task.Factory.StartNew(() =>
{
for (int j = 0; j < 1000; j++)
{
bank.Withdraw(1);
Console.WriteLine($"Task: {Task.CurrentId} is withdrawing 1 buck.");
}
}));
Task.WaitAll(tasks.ToArray());
Console.WriteLine($"Final balance: {bank.Balance}");
}
private static void SynchronizeAtTaskLevelSpinLock()
{
var tasks = new List <Task>();
var number = new Random();
var bank = new BankFactory().Build(BankType.Unsafe); // <== !
var spinLock = new SpinLock();
tasks.Add(Task.Factory.StartNew(() =>
{
for (int j = 0; j < 1000; j++)
{
bool lockTaken = false;
try
{
spinLock.Enter(ref lockTaken);
bank.Deposit(1);
}
finally
{
if (lockTaken)
{
spinLock.Exit();
}
}
Thread.Sleep(number.Next(100));
Console.WriteLine($"Task: {Task.CurrentId} is depositing 1 buck.");
}
}));
tasks.Add(Task.Factory.StartNew(() =>
{
for (int j = 0; j < 1000; j++)
{
bool lockTaken = false;
try
{
spinLock.Enter(ref lockTaken);
bank.Withdraw(1);
}
finally
{
if (lockTaken)
{
spinLock.Exit();
}
}
Thread.Sleep(number.Next(100));
Console.WriteLine($"Task: {Task.CurrentId} is withdrawing 1 buck.");
}
}));
Task.WaitAll(tasks.ToArray());
Console.WriteLine($"Final balance: {bank.Balance}");
}
