Hello, the protocol used is TCP, the POS terminal sends to the server is a string of ASCII characters like this "ACTION=VENDA&ID_TERMINAL=528-533-378&ID_EVENTO=00001579&ID_SETOR=00018087&QTDE=01&TPEMISSAO=0&TIPO=0&MAG=0" what happens is that after some transactions by sending the string to the server, the event OnDataAvailable is no longer triggered, the connection is opened the data sent from the POS terminal to the server and the event is not fired, I do not know why what reason, this happens only with the component TWSocketServer, since the component TWSocket this problem never happens whenever the event is triggered OnDataAvailable, doing the same operation with the two components could be some component configuration TWSocketServer? I also did the test with TMagIpLog and the same problem happens after some reports the event to receive the data is no longer fired, now what I do not understand is that the component TWSocket the problem does not happen and now with TWSocketServer it happens, and as you said I should use TWSocketServer not the TWSocket, I am unsure of using it.
thanks again! 2013/5/1 Angus Robertson - Magenta Systems Ltd <an...@magsys.co.uk> > > Could use ThrdServer example, the problem was solved with > > "WSocketServer1.Banner: ='';" now I can not receive data, by > > setting longer just LINEMODE = FALSE, and after a few connections, > > does not enter the event "OnDataAvailable" when LINEMODE = TRUE event > > "OnDataAvailable" is never triggered > > OnDataAvailable is identical in all ICS components, does not matter which > client or server demos you look at. > > You have not told us what protocol your POS terminals are using, > specifically whether it is ASCII line oriented or binary packets, and > LINEMODE=TRUE will only work with the former. > > In practice, I rarely use LINEMODE=true even for line oriented protocols, > because sometimes those lines may be thousands of characters long and > exceed the buffers. I usually use Receive or ReceiveFrom to accept data > into a buffer, and then loop through the buffer character by character > checking for line endings and other control characters and writing a > simple string for further processing. The loop can check for long lines > and have a timeout if data stops half way through a line. > > For an example look at procedure TMagIpLog.SocketDataAvailable in the > component I recommended you use for testing yesterday, you are simply > trying to reinvent stuff that others have done already. > > Angus > > -- > To unsubscribe or change your settings for TWSocket mailing list > please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket > Visit our website at http://www.overbyte.be > -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
