// Queue for sending.
public void SendQueued(Packet cpPacket)
{
IPacketCache cache = this.Cache.Request(cpPacket);
if (cache == null)
{
// QueueUnqueuePacket
Packet cpNullPacket = null;
if (cpPacket.OriginatedFromServer == true && cpPacket.IsResponse == true)
{
this.SendAsync(cpPacket);
}
else
{
// Null return because we're not popping a packet, just checking to see if this one needs to be queued.
if (this.QueueUnqueuePacket(true, cpPacket, out cpNullPacket) == false)
{
// No need to queue, queue is empty. Send away..
this.SendAsync(cpPacket);
}
// Shutdown if we're just waiting for a response to an old packet.
this.RestartConnectionOnQueueFailure();
}
}
else if (this.PacketCacheIntercept != null)
{
Packet cloned = (Packet)cache.Response.Clone();
cloned.SequenceNumber = cpPacket.SequenceNumber;
// Fake a response to this packet
this.PacketCacheIntercept(this, cpPacket, cloned);
}
}
public IPacketCache Request(Packet request)
{
IPacketCache cache = null;
if (request.IsResponse == false)
{
var key = request.ToString();
lock (this.CacheLock) {
// Have we got it cached and is it valid?
if (this.Cache.ContainsKey(key) == true)
{
if (this.Cache[key].Response != null)
{
// Yes, we do. Return this.
cache = this.Cache[key];
}
// else return null
}
// No, check if we should cache it.
else
{
this.CacheIfApplicable(key, request);
}
}
}
return(cache);
}
public void Response(Packet response)
{
if (response.IsResponse == true)
{
lock (this.CacheLock) {
IPacketCache cache = this.Cache.Where(item => item.Value.Request.SequenceNumber == response.SequenceNumber).Select(item => item.Value).FirstOrDefault();
if (cache != null)
{
cache.Response = response;
}
}
}
}
/// <summary>
/// Checks if a packet should be cached, if so it will cache on a key
/// </summary>
/// <param name="key">The key to cache on</param>
/// <param name="request">The request being made to the server</param>
/// <returns>A new cache object if the request was cachable, false otherwise.</returns>
protected IPacketCache CacheIfApplicable(String key, Packet request)
{
IPacketCache cache = null;
var config = this.Configurations.FirstOrDefault(c => c.Matching.IsMatch(key));
if (config != null)
{
cache = new PacketCache()
{
Request = request,
Expiry = DateTime.Now.Add(config.Ttl)
};
this.Cache.Add(key, cache);
}
return(cache);
}
