public void ReleaseAfterDisposed()
{
var counter = new ScopeCounter(Mock.Of <ILifetimeScope>());
counter.Release();
counter.Release();
}
public void Create()
{
var scope = Mock.Of <ILifetimeScope>();
var counter = new ScopeCounter(scope);
Assert.AreSame(scope, counter.Scope);
}
/// <summary>Performs a spinlock until all reference counts are zero.</summary>
/// <param name="t1">The first scope to check</param>
/// <param name="t2">The second scope to check</param>
public static void WaitForZero(ScopeCounter t1, ScopeCounter t2)
{
while (!(IsZero(t1, t2)))
{
;
}
}
/// <summary>Performs a spinlock until all reference counts are zero.</summary>
/// <param name="t1">The first scope to check</param>
/// <param name="t2">The second scope to check</param>
/// <param name="t3">The third scope to check</param>
public static void WaitForZero(ScopeCounter t1, byte t2, byte t3)
{
while (!(IsZero(t1, t2, t3)))
{
;
}
}
/// <summary>Performs a spinlock until the reference count of a local scope is zero, then increments the reference count</summary>
/// <param name="scope">The local scope</param>
/// <returns>The updated scope</returns>
public static ScopeCounter AcquireWhenZero(ScopeCounter scope)
{
while (!(Interlocked.CompareExchange(ref scope._count, 1, 0) == 0))
{
;
}
return(scope);
}
public void Dispose()
{
if (counter != null)
{
counter.count--;
this.counter = null;
}
}
private ScopeCounter Counter(Node <UriOrBlank>?scope)
{
var found = _scopedCounters.FirstOrDefault(x => x.Scope == scope);
if (found is null)
{
found = new ScopeCounter(scope);
_scopedCounters.Add(found);
}
return(found);
}
public void AddAndRelease()
{
var scope = new Mock <ILifetimeScope>(MockBehavior.Strict);
scope.Setup(_ => _.Dispose());
var counter = new ScopeCounter(scope.Object);
counter.Add();
counter.Add();
counter.Release();
counter.Release();
counter.Release();
Assert.IsNull(counter.Scope);
scope.VerifyAll();
}
/// <summary>Decrements the reference count of a local scope</summary>
/// <param name="scope">The local scope</param>
private static void ReleaseOne(ScopeCounter scope)
{
Interlocked.Decrement(ref scope._count);
}
/// <summary>Resets the reference count of a global scope to zero</summary>
/// <param name="scope">The local scope</param>
public static void Reset(ScopeCounter scope)
{
Interlocked.Exchange(ref scope._count, 0);
}
/// <summary>Increments the reference count of a local scope, then returns the updated scope</summary>
/// <param name="scope">The local scope</param>
/// <returns>The updated scope</returns>
public static ScopeCounter Acquire(ScopeCounter scope)
{
Interlocked.Increment(ref scope._count); return(scope);
}
/// <summary>Gets the reference count of a local scope</summary>
/// <param name="scope">The local scope</param>
/// <returns>The reference count of the scope</returns>
public static int Get(ScopeCounter scope)
{
return(scope._count);
}
/// <summary>Returns if the reference count of all scopes is zero</summary>
/// <param name="t1">The first scope to check</param>
/// <param name="t2">The second scope to check</param>
/// <param name="t3">The third scope to check</param>
/// <returns>True if all reference counts are zero, false otherwise</returns>
public static bool IsZero(ScopeCounter t1, byte t2, byte t3)
{
return(Get(t1) == 0 && Get(t2) == 0 && Get(t3) == 0);
}
/// <summary>Returns if the reference count of all scopes is zero</summary>
/// <param name="t1">The first scope to check</param>
/// <param name="t2">The second scope to check</param>
/// <returns>True if all reference counts are zero, false otherwise</returns>
public static bool IsZero(ScopeCounter t1, ScopeCounter t2)
{
return(Get(t1) == 0 && Get(t2) == 0);
}
/// <summary>Increments the reference count of a local scope only if the count is zero</summary>
/// <param name="scope">The local scope</param>
/// <returns>True if acquired, false otherwise</returns>
public static bool AcquireIfZero(ScopeCounter scope)
{
return(Interlocked.CompareExchange(ref scope._count, 1, 0) == 0);
}
