private uint GetNextFreeIndex()
{
uint idx = 0;
if (m_values.Count > 0)
{
idx = (uint)m_values[m_values.Count - 1] + 1;
// overflow - collapse indexes
if (idx == 0)
{
for (int i = 0; i < m_values.Count; i++)
{
// if the current index matches the lookup value then we are already in the correct position
if (idx == (uint)m_values[i])
{
idx++;
}
else
{
// collapse cert indexes
ExtendedWeakReference ewr = ExtendedWeakReference.Recover(typeof(_CertStore_), (uint)m_values[i]);
if (ewr != null)
{
X509Certificate cert = ewr.Target as X509Certificate;
ewr.Target = null;
ewr = new ExtendedWeakReference(cert, typeof(_CertStore_), idx, ExtendedWeakReference.c_SurvivePowerdown);
ewr.Priority = (int)ExtendedWeakReference.PriorityLevel.Critical;
ewr.Target = cert;
ewr.PushBackIntoRecoverList();
m_values[i] = (uint)idx;
// increment active index count only if we have a valid EWR certificate
idx++;
}
}
}
}
}
return idx;
}
