public void Dispose()
{
var lockSlot = Interlocked.Exchange(ref _lockSlot, null);
if (lockSlot == null)
{
return;
}
var context = Interlocked.Exchange(ref _context, null);
if (context != null)
{
context.Slot = _parent;
}
var needleLocks = Interlocked.Exchange(ref _needleLocks, null);
if (needleLocks != null)
{
foreach (var needleLock in needleLocks)
{
needleLock.Release(lockSlot);
needleLock.Release();
}
needleLocks.Clear();
}
lockSlot.Close();
ThreadingHelper.MemoryBarrier();
_parent = null;
GC.SuppressFinalize(this);
}
public void Dispose()
{
var lockslot = Interlocked.Exchange(ref _lockSlot, null);
if (lockslot == null)
{
return;
}
var context = Interlocked.Exchange(ref _context, null);
if (context != null)
{
context.Slot = _parent;
}
var needleLocks = Interlocked.Exchange(ref _needleLocks, null);
if (needleLocks != null)
{
foreach (var needleLock in needleLocks)
{
needleLock.Uncapture(lockslot);
needleLock.Release();
}
needleLocks.Clear();
}
lockslot.Close();
Thread.MemoryBarrier();
_parent = null;
GC.SuppressFinalize(this);
}
private void CaptureAndWait(LockableSlot slot)
{
Capture(slot);
var thread = Thread.CurrentThread;
// The reason while I cannot make an smarter wait function:
// If another thread changed _needleLock.Value after the check but before the starting to wait, the wait will not finish.
ThreadingHelper.SpinWaitUntil(() => _needleLock.Value == thread);
}
private void Capture(LockableSlot slot)
{
var lockslot = slot.LockSlot;
if (ReferenceEquals(lockslot, null))
{
throw new InvalidOperationException("The current thread has not entered the LockableContext of this LockableNeedle.");
}
_needleLock.Capture(lockslot);
slot.Add(_needleLock);
}
internal LockableSlot(LockableContext context)
{
_context = context;
_parent = _context.Slot;
_context.Slot = this;
// --
LockSlot<Thread> lockSlot = null;
ThreadingHelper.SpinWaitUntil(() => _context.Context.ClaimSlot(out lockSlot));
lockSlot.Value = Thread.CurrentThread;
_lockSlot = lockSlot;
_needleLocks = new List<NeedleLock<Thread>>();
}
internal LockableSlot(LockableContext context)
{
_context = context;
_parent = _context.Slot;
_context.Slot = this;
// --
LockSlot <Thread> lockSlot = null;
ThreadingHelper.SpinWaitUntil(() => _context.Context.ClaimSlot(out lockSlot));
lockSlot.Value = Thread.CurrentThread;
_lockSlot = lockSlot;
_needleLocks = new List <NeedleLock <Thread> >();
}
internal bool TryGetSlot(out LockableSlot slot)
{
return(_slots.Value.TryGetValue(Thread.CurrentThread, out slot) && slot != null);
}