public static StandardCheckRevisionImplementation GetImplementation(IEnumerable <string> formulas)
{
string completeText = JoinWith(formulas, ' ');
StandardCheckRevisionImplementation impl = null;
if (!ActiveFormulaCallbacks.TryGetValue(completeText, out impl))
{
DynamicMethod method = CheckRevisionCompiler.Compile(completeText, formulas);
impl = method.CreateDelegate(typeof(StandardCheckRevisionImplementation)) as StandardCheckRevisionImplementation;
FormulaList.Enqueue(completeText);
ActiveFormulas.Add(completeText, method);
ActiveFormulaCallbacks.Add(completeText, impl);
if (FormulaList.Count > MAX_CURRENT_FORMULAS)
{
ThreadPool.QueueUserWorkItem((WaitCallback) delegate
{
string formulaToRelease = FormulaList.Dequeue();
if (ActiveFormulas.ContainsKey(formulaToRelease))
{
ActiveFormulas.Remove(formulaToRelease);
}
if (ActiveFormulaCallbacks.ContainsKey(formulaToRelease))
{
ActiveFormulaCallbacks.Remove(formulaToRelease);
}
});
}
}
return(impl);
}
// This method assumes all parameters have been sanity checked
private static int DoCheckRevisionCompiled(
uint A,
uint B,
uint C,
IEnumerable <string> crevFormulas,
Stream completeDataStream)
{
StandardCheckRevisionImplementation impl = CheckRevisionFormulaTracker.GetImplementation(crevFormulas);
using (BinaryReader br = new BinaryReader(completeDataStream))
{
uint S;
while (br.BaseStream.Position < br.BaseStream.Length)
{
S = br.ReadUInt32();
impl(ref A, ref B, ref C, ref S);
}
}
return(unchecked ((int)C));
}
