public void LockConversionTest1()
{
MyLM target = new MyLM();
target.setDeadlockTimeout(1000);
Transaction context = new Transaction();
Lockable resource = new RID(RID.Type.CAR, "test");
target.LockForUpdate(context, resource);
target.LockForWrite(context, resource);
}
public void LockConversionTest2()
{
MyLM target = new MyLM();
target.setDeadlockTimeout(1000);
Transaction context = new Transaction();
Transaction context2 = new Transaction();
Lockable resource = new RID(RID.Type.CAR, "test");
target.setDeadlockTimeout(10);
target.LockForUpdate(context, resource);
target.LockForRead(context2, resource);
target.LockForWrite(context, resource);
Assert.Fail("shall not reach this line");
}
public void LockConversionTest3()
{
MyLM target = new MyLM();
target.setDeadlockTimeout(1000);
Transaction context = new Transaction();
Transaction context2 = new Transaction();
Lockable resource = new RID(RID.Type.CAR, "test");
target.LockForUpdate(context, resource);
target.LockForRead(context2, resource);
ManualResetEvent e = new ManualResetEvent(false);
ThreadPool.QueueUserWorkItem((obj) =>
{
Thread.Sleep(200);
target.UnlockRead(context2, resource);
e.Set();
});
target.LockForWrite(context, resource);
if (!e.WaitOne(2000))
{
Assert.Fail("Failed");
}
}