private ACL _UnsafeGetACL(int aclID)
{
if (idList.TryGetValue(aclID, out ACL aCL))
{
return(aCL);
}
else
{ // returns empty ACL!?
var acl = new ACL();
acl.Seal();
return(acl);
}
}
private int _UnsafeAddId(ACL acl)
{
System.Diagnostics.Debug.Assert(locker.IsReadLockHeld || locker.IsUpgradeableReadLockHeld);
id++;
aclList.Add(acl, id);
if (idList.TryAdd(id, acl))
{
}
else
{
throw new ArgumentException($"@ ACLSet.GetID Cannot add Duplicate ACE {acl}");
}
return(id);
}
public int GetId(ACL acl)
{
locker.EnterUpgradeableReadLock();
try
{
return(_UnsafeGetId(acl));
}
catch (Exception)
{
throw;
}
finally
{
locker.ExitUpgradeableReadLock();
}
}
private int _UnsafeGetId(ACL acl)
{
if (aclList.TryGetValue(acl, out int value))
{
return(value);
}
else
{
locker.EnterWriteLock();
try
{
_UnsafeAddId(acl);
return(id);
}
catch (Exception)
{
throw;
}
finally
{
locker.ExitWriteLock();
}
}
}
