/// <summary>
/// Remove all memoizer instances having the given Func, from the memoizer registry
/// </summary>
/// <param name="functionToUnMemoize">The memoized function to remove from the memoizer registry</param>
/// <param name="memoizerRegistry">The memoizer registry instance</param>
/// <returns>Number of memoizer instances removed from memoizer registry</returns>
internal static int RemoveRegistryMemoizersHavingFunction <T>(object functionToUnMemoize, Memoizer <MemoizerConfiguration, T> memoizerRegistry) where T : IDisposable
//internal static int RemoveRegistryMemoizersHavingFunction<T>(object functionToUnMemoize, Memoizer<MemoizerConfiguration, T> memoizerRegistry) where T : IMemoizer ...would have been nice
{
//lock (memoizerRegistry)
//{
int numberOfMemoizersRemovedInTotal = 0;
if (MEMOIZER_REGISTRY_INSTRUMENTATION)
{
Interlocked.Increment(ref numberOfTimesInvoked);
}
IEnumerable <string> memoizerKeyList = FindMemoizerKeysInRegistryHavingFunction(functionToUnMemoize, memoizerRegistry);
foreach (var memoizerKey in memoizerKeyList)
{
Task <T> cacheValueTask = (Task <T>)memoizerRegistry.cache.Get(memoizerKey);
IDisposable memoizer = cacheValueTask.Result;
if (memoizerRegistry.cache.Contains(memoizerKey))
{
// TODO: get this data (using reflection, for now)...
//if (MEMOIZER_REGISTRY_INSTRUMENTATION)
//{
// int numbersOfItems = memoizer.GetCount();
//}
memoizer.Dispose();
memoizerRegistry.cache.Remove(memoizerKey);
++numberOfMemoizersRemovedInTotal;
if (MEMOIZER_REGISTRY_INSTRUMENTATION)
{
// TODO: ...
//Console.Write("memoizer [key=" + memoizerKey + "] removed - contaning " + numbersOfItems + " function invocation argument permutation items...");
Console.Write("Memoizer.NET.MemoizerRegistry: Memoizer [key=" + memoizerKey + "] removed!");
long memoizerRegistryCount = memoizerRegistry.cache.GetCount();
switch (memoizerRegistryCount)
{
case 0:
Console.Write(" [Memoizer registry is empty]");
break;
case 1:
Console.Write(" [Memoizer registry still contains " + memoizerRegistry.cache.GetCount() + " memoizer configuration]");
break;
default:
Console.Write(" [Memoizer registry still contains " + memoizerRegistry.cache.GetCount() + " memoizer configurations]");
break;
}
}
}
else
{
if (MEMOIZER_REGISTRY_INSTRUMENTATION)
{
Console.Write("Memoizer.NET.MemoizerRegistry: Memoizer [key=" + memoizerKey + "] does not exist");
}
}
}
if (MEMOIZER_REGISTRY_INSTRUMENTATION)
{
if (numberOfMemoizersRemovedInTotal != memoizerKeyList.Count())
{
throw new InvalidOperationException("Number of cached functions: " + memoizerKeyList.Count() + ", number of items removed from cache: " + numberOfMemoizersRemovedInTotal);
}
Console.WriteLine(" [RemoveRegistryMemoizersHavingFunction() invocation #" + numberOfTimesInvoked + "]");
}
return(numberOfMemoizersRemovedInTotal);
//}
}
/// <summary>
/// Coupled with the <code>MemoizerConfiguration.GetHashCode()</code> method.
/// </summary>
/// <param name="function">The memoized function to look for</param>
/// <param name="memoizerRegistry">The memoizer registry instance to look into</param>
/// <returns>An enumeration of keys pointing to memoizer instances in the memoizer registry, having the given function</returns>
internal static IEnumerable <string> FindMemoizerKeysInRegistryHavingFunction <T>(object function, Memoizer <MemoizerConfiguration, T> memoizerRegistry)
{
IList <string> memoizerKeyList = new List <string>();
foreach (KeyValuePair <string, object> keyValuePair in memoizerRegistry.cache)
{
string funcIdPartOfMemoizerConfigurationHashCode = keyValuePair.Key.PadLeft(10, '0').Substring(0, 5);
bool firstTime = false;
//long funcId_long = MemoizerHelper.GetObjectId(function, ref firstTime);
long funcId_long = HashHelper.GetObjectId(function, ref firstTime);
if (funcId_long > 21474)
{
throw new InvalidOperationException("Memoizer.NET only supports 21474 different Func references at the moment...");
}
string funcIdPartOfFunctionToLookFor = funcId_long.ToString().PadLeft(5, '0');
if (funcIdPartOfFunctionToLookFor == funcIdPartOfMemoizerConfigurationHashCode)
{
memoizerKeyList.Add(keyValuePair.Key);
}
}
return(memoizerKeyList);
}
