public void UnregisterFirstLevelCache(IWritableCache firstLevelCache, CacheFactoryDirective cacheFactoryDirective, bool foreignThreadAware, String name)
{
// cacheFactoryDirective and foreignThreadAware will be intentionally ignored at unregister
unboundWriteLock.Lock();
try
{
CheckCachesForCleanup();
int cacheId = firstLevelCache.CacheId;
FlcEntry flcEntry = DictionaryExtension.ValueOrDefault(allFLCs, cacheId);
if (flcEntry == null)
{
throw new Exception("CacheId is not mapped to a valid cache instance");
}
IWritableCache existingChildCache = flcEntry.GetFirstLevelCache();
if (existingChildCache == null)
{
throw new Exception("Fatal error occured. Reference lost to cache");
}
if (existingChildCache != firstLevelCache)
{
throw new Exception("Fatal error occured. CacheId invalid - it is not mapped to the specified cache instance");
}
allFLCs.Remove(cacheId);
foreignThreadAware = flcEntry.IsForeignThreadAware();
cacheFactoryDirective = flcEntry.GetCacheFactoryDirective();
LogFLC(firstLevelCache, cacheFactoryDirective, foreignThreadAware, name, flcEntry, false);
firstLevelCache.CacheId = 0;
}
finally
{
unboundWriteLock.Unlock();
}
}
public void RegisterFirstLevelCache(IWritableCache firstLevelCache, CacheFactoryDirective cacheFactoryDirective, bool foreignThreadAware, String name)
{
WeakReference firstLevelCacheR = CreateReferenceEntry(firstLevelCache);
Thread thread = Thread.CurrentThread;
WeakReference owningThreadR = !foreignThreadAware?CreateReferenceEntry(thread) : null;
FlcEntry flcEntry = new FlcEntry(cacheFactoryDirective, firstLevelCacheR, owningThreadR);
unboundWriteLock.Lock();
try
{
int cacheId;
int nextCacheId = lastCacheId;
while (true)
{
if (nextCacheId == Int32.MaxValue)
{
nextCacheId = 0;
}
cacheId = ++nextCacheId;
if (!allFLCs.ContainsKey(cacheId))
{
allFLCs.Add(cacheId, flcEntry);
lastCacheId = cacheId;
break;
}
}
firstLevelCache.CacheId = cacheId;
LogFLC(firstLevelCache, cacheFactoryDirective, foreignThreadAware, name, flcEntry, true);
}
finally
{
unboundWriteLock.Unlock();
}
}
protected void LogFLC(IWritableCache firstLevelCache, CacheFactoryDirective cacheFactoryDirective, bool foreignThreadAware, String name,
FlcEntry flcEntry, bool isRegister)
{
if (!Log.DebugEnabled)
{
return;
}
StringBuilder sb = new StringBuilder();
if (isRegister)
{
sb.Append("Registered");
}
else
{
sb.Append("Unregistered");
}
sb.Append(" FLC");
if (name != null)
{
sb.Append(" '").Append(name).Append("'");
}
sb.Append(" with id: ").Append(firstLevelCache.CacheId);
if (firstLevelCache.Privileged)
{
sb.Append(", privileged");
}
else
{
sb.Append(", non-privileged");
}
if (CacheFactoryDirective.SubscribeTransactionalDCE.Equals(flcEntry.GetCacheFactoryDirective()))
{
sb.Append(", transactional");
if (foreignThreadAware)
{
sb.Append(", multithreaded");
}
else
{
Thread thread = flcEntry.GetOwningThread();
sb.Append(", to thread ").Append(thread.ManagedThreadId).Append(':').Append(thread.Name);
}
}
else if (CacheFactoryDirective.SubscribeGlobalDCE.Equals(flcEntry.GetCacheFactoryDirective()))
{
sb.Append(", non-transactional");
if (foreignThreadAware)
{
sb.Append(", multithreaded");
}
else
{
Thread thread = flcEntry.GetOwningThread();
sb.Append(", to thread ").Append(thread.ManagedThreadId).Append(':').Append(thread.Name);
}
}
else
{
sb.Append(", traced");
}
Log.Debug(sb.ToString());
}
