protected void EnsureSessionIsValid()
{
if (_session == null)
{
return;
}
bool nearExpiry = Platform.Time.Add(TimeSpan.FromMinutes(SessionRenewalOffsetMinutes)) > _session.SessionToken.ExpiryTime;
TimeSpan timeSinceLastCheck = TimeSpan.FromMilliseconds(Environment.TickCount - _lastSessionCheckTicks);
if (nearExpiry || timeSinceLastCheck > _sessionPollingIntervalSeconds)
{
_lastSessionCheckTicks = Environment.TickCount;
_session = UserAuthentication.RenewSession(_session);
OnSessionRenewed();
}
}
