protected void SetResource(T resource)
{
if (ReferenceEquals(this._Resource, resource))
{
return;
}
bool oldResource = (this._Resource is object);
bool newResource = (resource is object);
using (var r = this._Resource) {
this._Resource = resource;
}
if (oldResource && !newResource)
{
if (InterlockedUtilty.BitwiseSet(ref this._DisposeState, (int)(DisposeState.FinalizeSuppressed)))
{
System.GC.SuppressFinalize(this);
}
}
else if (!oldResource && newResource)
{
if (InterlockedUtilty.BitwiseClear(ref this._DisposeState, (int)(DisposeState.FinalizeSuppressed)))
{
System.GC.ReRegisterForFinalize(this);
}
}
}
public void BitwiseClearTest()
{
{
int a = 0;
Assert.False(InterlockedUtilty.BitwiseClear(ref a, 1));
Assert.Equal(0, a);
}
{
int a = 0;
Assert.False(InterlockedUtilty.BitwiseClear(ref a, 2));
Assert.Equal(0, a);
}
{
int b = 1;
Assert.True(InterlockedUtilty.BitwiseClear(ref b, 1));
Assert.Equal(0, b);
}
{
int b = 1;
Assert.False(InterlockedUtilty.BitwiseClear(ref b, 2));
Assert.Equal(1, b);
}
}