private void updateCache(string uuid, string url, int cacheValidity)
{
YSSDPCacheEntry entry;
if (cacheValidity <= 0)
{
cacheValidity = 1800;
}
cacheValidity *= 1000;
if (_cache.ContainsKey(uuid))
{
entry = _cache[uuid];
if (!entry.URL.Equals(url))
{
_callbacks.HubDiscoveryCallback(entry.Serial, url, entry.URL);
entry.URL = url;
}
else
{
_callbacks.HubDiscoveryCallback(entry.Serial, url, null);
}
entry.resetExpiration(cacheValidity);
return;
}
entry = new YSSDPCacheEntry(uuid, url, cacheValidity);
_cache[uuid] = entry;
_callbacks.HubDiscoveryCallback(entry.Serial, entry.URL, null);
}
private void checkCacheExpiration()
{
List<string> to_remove = new List<string>();
foreach (YSSDPCacheEntry entry in _cache.Values) {
if (entry.hasExpired()) {
_callbacks.HubDiscoveryCallback(entry.Serial, null, entry.URL);
to_remove.Add(entry.UUID);
}
}
foreach (string uuid in to_remove) {
_cache.Remove(uuid);
}
}