I've dug further into this, and it seems (as mentioned in the FRC game sample article) that BroadcastToAllSessions currently is the proper method to use for doing this after all. I had a look at the code, and it is very simple: void AbstractReflectSession :: BroadcastToAllSessions(MessageRef msgRef, void * userData, bool toSelf) { HashtableIterator<const char *, AbstractReflectSessionRef> iter = GetSessions(); AbstractReflectSessionRef * next; while((next = iter.GetNextValue()) != NULL) { AbstractReflectSession * session = next->GetItemPointer(); if ((session)&&((toSelf)||(session != this))) session->MessageReceivedFromSession(*this, msgRef, userData); } } By simply having the PlayerSession ignore the "MessageReceivedFromSession" calls (which is the default behaviour AFAIK) and only having the GameState session picking them up, it sortof acts like a "direct message" to the GameState session. When/if the "broadcast" method becomes a bottleneck, it should be fairly simple to reimplement this functionality of only sending to a destination session and probably implementing a random access method for finding sessions. Regards, Marius K. On Wednesday 10 December 2003 13:20, you wrote: > I have clients connected to a server. Each client is able to update their > own subtrees in the database. For authentication purposes (and probably > other state stuff that I want to keep server side), I want the server to be > able to write into its own subtrees in the database ("gamestate" tree). > > When a client sends some infomation this is received by the corresponding > StorageReflectSession subclass server side. Depending on how that > information was treated, I want to store information in another > StorageReflectSession subclass (typically the one instance holding the > common gamestate). > > So, in short, after processing some data from the client in a "player" > subclass of StorageReflectSession subclass, I want to send a message to the > "gamestate" subclass of StorageReflectSession. > > Unfortunately, I have not found an easy way to do this. I have looked at > the SendMessageToSessions method found in the MessageTransceiverThread > class (and subclasses), but on the server I have no explicit instance of > any message transceiver class. I have not found any easy way to get to one > either from StorageReflectSession. > > So what am I missing? Is there any easy way to send messages from one > server side session to another? > > Thanks, > > Marius Kjeldahl