Humm, Markus wrote: > The DLL has a data module which has one single TWSocket for all incomming > data and for each outgoing connection a TWSocket is created dynamically. > The instance of this socket is stored in a TObjectList together with > other relevant information.
Sounds like you re-invented TWSocketServer. > When the first connection is opened a > seperate thread within the DLL is created for handling of the windows > messages (needed by TWSocket and other components as well). I guess your listening socket runs in one thread and all client sockets in a single second thread, do I understand that right? > > This works so far until the point is reached where the DLL is freed. > The DLL is used statically in another DLL which has a thread for each > connection too. Hm, "too" sounds like each client connection runs in it's own thread? This 2nd dll is loaded dynamically. When it is freed via > free library, its finalization checks if there are any open connections > thus threads) left. If yes, they all get freed and by freeing them each > connection in the first dll should get closed too. > With TWSocket this doesn't work, because socket.close seems to hang and > the 1st DLL never reaches the statement after the close. > > Pseudo code is like this: > > - write a marker to the windows eventlog (debug output) > - call socket.close; > - sleep(25); > - write a marker to the windows eventlog (debug output) > - call socket.free; As Dod already said, using sleep with TWsocket is mostly not suggested, since messages need to be processed. If you _must wait nevertheless, MsgWaitForMultipleObjects() may be an alternative. However I haven't understood your DLL/thread design, and in which threads your sockets run. If you don't get a better answer give it another trial with a more detailed description of the thread design and how sockets are created/attached to threads. Arno -- To unsubscribe or change your settings for TWSocket mailing list please goto http://www.elists.org/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be