public void Transfer()
{
object _lock1, _lock2;
if (FromAccount.Id < ToAccount.Id)
{
_lock1 = FromAccount;
_lock2 = ToAccount;
}
else
{
_lock1 = ToAccount;
_lock2 = FromAccount;
}
Console.WriteLine($"{Thread.CurrentThread.Name} trying to acquire lock on {((Account)_lock1).Id.ToString()}");
lock (_lock1)
{
Console.WriteLine($"{Thread.CurrentThread.Name} acquired lock on {((Account)_lock1).Id.ToString()}");
Console.WriteLine($"{Thread.CurrentThread.Name} suspende for 1 sec");
Thread.Sleep(1000);
Console.WriteLine($"{Thread.CurrentThread.Name} back on action and trying to acquire lock on {((Account)_lock2).Id.ToString()}");
lock (_lock2)
{
Console.WriteLine($"{Thread.CurrentThread.Name} acquired lock on {((Account)_lock2).Id.ToString()}");
FromAccount.Withdraw(AmountToTransfer);
ToAccount.Deposit(AmountToTransfer);
Console.WriteLine($"{Thread.CurrentThread.Name} Transfered {AmountToTransfer} From {FromAccount.Id} to {ToAccount.Id}");
}
}
}
public void Transfer(decimal amount)
{
Console.WriteLine($"Initializing transfer #{FromAccount.Id}:{FromAccount.Balance} -{amount}-> #{ToAccount.Id}:{ToAccount.Balance}");
using (var transaction = Services.AccountRepository.BeginTransaction())
{
FromAccount = FromAccount.Withdraw(amount, Services.AccountRepository.Persist);
ToAccount = ToAccount.Deposit(amount, Services.AccountRepository.Persist);
transaction.Commit();
Console.WriteLine("End of transaction.");
}
}
public TransactionResult Execute()
{
TransactionResult result = FromAccount.Withdraw(this);
if (result == TransactionResult.SUCCESS)
{
return(ToAccount.Deposit(this));
}
else
{
return(result);
}
}