public void UnregisterRemoteCacheDependency(string cacheKey)
{
if (!string.IsNullOrEmpty(cacheKey))
{
lock (_remoteCacheKeys)
{
if (_remoteCacheKeys.ContainsKey(cacheKey))
{
CacheKeyStats cacheKeyCounter = _remoteCacheKeys[cacheKey];
if (cacheKeyCounter != null)
{
cacheKeyCounter.refCount--;
if (cacheKeyCounter.refCount == 0)
{
_remoteCacheKeys.Remove(cacheKey);
}
}
}
}
lock (_registerCallbackQueue)
{
ThreadTask registerThread = new ThreadTask(cacheKey, false, true);
_registerCallbackQueue.Enqueue(registerThread);
Monitor.Pulse(_registerCallbackQueue);
}
}
}
public void RegisterRemoteCacheDependency(string cacheKey)
{
if (!string.IsNullOrEmpty(cacheKey))
{
bool isNewKey = false;
lock (_remoteCacheKeys)
{
if (_remoteCacheKeys.ContainsKey(cacheKey))
{
CacheKeyStats cacheStats = _remoteCacheKeys[cacheKey];
if (cacheStats != null)
{
cacheStats.refCount++;
cacheStats.HasExpired = false;
}
else
{
cacheStats = new CacheKeyStats();
cacheStats.refCount = 1;
cacheStats.HasExpired = false;
}
}
else
{
CacheKeyStats cacheStats = new CacheKeyStats();
cacheStats.refCount = 1;
cacheStats.HasExpired = false;
_remoteCacheKeys.Add(cacheKey, cacheStats);
isNewKey = true;
}
}
if (isNewKey)
{
lock (_registerCallbackQueue)
{
ThreadTask registerThread = new ThreadTask(cacheKey, true, false);
_registerCallbackQueue.Enqueue(registerThread);
Monitor.Pulse(_registerCallbackQueue);
}
}
}
}
private void RegUnRegRemoteCacheDependency()
{
while (true)
{
try
{
if (_registerCallbackQueue.Count > 0)
{
object cacheKey = null;
lock (_registerCallbackQueue)
{
cacheKey = _registerCallbackQueue.Dequeue();
}
if (cacheKey == null)
{
continue;
}
ThreadTask threadTask = (ThreadTask)cacheKey;
if (threadTask.cacheKey == null)
{
throw new Exception(" cache key null");
}
if (threadTask.register)
{
try
{
_cache.RegisterKeyNotificationCallback(threadTask.cacheKey, null, _removeCallback);
}
catch (Exception e)
{
SetItemExpiration(cacheKey.ToString(), "Event Registration faliure");
}
}
else if (threadTask.unRegister)
{
_cache.UnRegisterKeyNotificationCallback(threadTask.cacheKey, null, _removeCallback);
}
}
else
{
lock (_registerCallbackQueue)
{
if (_registerCallbackQueue.Count == 0)
{
Monitor.Wait(_registerCallbackQueue);
}
}
}
}
catch (ThreadAbortException t)
{
break;
}
catch (ThreadInterruptedException i)
{
break;
}
catch (Exception ex)
{
}
}
}
