public bool TryEnterRead(out IDisposable engagement)
{
engagement = null;
if (!CanRead())
{
return(false);
}
engagement = DisposableAkin.Create(DoneRead);
return(true);
}
public IDisposable EnterWrite()
{
if (_currentReadingCount.Value > 0)
{
if (WaitUpgrade())
{
return(DisposableAkin.Create(DoneUpgrade));
}
throw new InvalidOperationException();
}
WaitCanWrite();
return(DisposableAkin.Create(DoneWrite));
}
public bool TryEnterWrite(out IDisposable engagement)
{
engagement = null;
if (_currentReadingCount.Value > 0)
{
if (CanUpgrade())
{
engagement = DisposableAkin.Create(DoneUpgrade);
return(true);
}
return(false);
}
if (!CanWrite())
{
return(false);
}
engagement = DisposableAkin.Create(DoneWrite);
return(true);
}
public IDisposable EnterRead()
{
WaitCanRead();
return(DisposableAkin.Create(DoneRead));
}
public IDisposable EnterWrite()
{
WaitCanWrite();
return(DisposableAkin.Create(DoneWrite));
}
public IDisposable TryEnter(out bool didEnter)
{
didEnter = Enter(Id);
return(didEnter ? DisposableAkin.Create(() => Leave(Id)) : NoOpDisposable.Instance);
}