public void CompositeDisposable_Clear()
{
var disp1 = false;
var disp2 = false;
var d1 = Disposable.Create(() => { disp1 = true; });
var d2 = Disposable.Create(() => { disp2 = true; });
var g = new CompositeDisposable(d1, d2);
Assert.AreEqual(2, g.Count);
g.Clear();
Assert.IsTrue(disp1);
Assert.IsTrue(disp2);
Assert.AreEqual(0, g.Count);
var disp3 = false;
var d3 = Disposable.Create(() => { disp3 = true; });
g.Add(d3);
Assert.IsFalse(disp3);
Assert.AreEqual(1, g.Count);
}
public virtual bool TryLockChildren(LockTypes lockType, TimeSpan timeout, out IDisposable childDisposables)
{
var all_child_disposables = new CompositeDisposable();
childDisposables = all_child_disposables;
bool all_good = true;
foreach(var child in ChildLocks)
{
if (!all_good)
break;
if (lockType == LockTypes.Read)
{
var acqusition = (IReadLockAcquisition)null;
if (child.TryAcquireReadLock(timeout, out acqusition))
{
all_child_disposables.AddIfNotNull(acqusition);
}
else
{
all_good = false;
}
}
else if (lockType == LockTypes.UpgradeableRead)
{
var acqusition = (IUpgradeableReadLockAcquisition)null;
if (child.TryAcquireUpgradeableReadLock(timeout, out acqusition))
{
all_child_disposables.AddIfNotNull(acqusition);
}
else
{
all_good = false;
}
}
else if (lockType == LockTypes.Write)
{
var acqusition = (IWriteLockAcquisition)null;
if (child.TryAcquireWriteLock(timeout, out acqusition))
{
all_child_disposables.AddIfNotNull(acqusition);
}
else
{
all_good = false;
}
}
else
{
throw new NotSupportedException(lockType.ToString());
}
}
if(all_good)
{
return true;
}
else
{
all_child_disposables.Clear();
return false;
}
}
