TCP streams - Socoder

-=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- (c) WidthPadding Industries 1987 0\|631\|0 -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=- -=+=-
Socoder -> Blitz -> TCP streams
Sat, 22 Sep 2007, 16:39
dna	In this code: Graphics 400,600,0,2:AppTitle"TestServer":SeedRnd MilliSecs() the_server=CreateTCPServer(8080) If the_server=0 Then End Print"THE SERVER IS RUNNING . . . ." While Not KeyDown(1) a_stream=AcceptTCPStream(THE_SERVER) If A_STREAM A_MSG$=ReadLine(A_STREAM) If A_MSG$="GOOGLE PLEX" Print "MSG RECEIVED":WaitKey:End EndIf EndIf Wend End --v As the program scans for streams, does the program assign a unique number to each different stream? -=-=- DNA
Sun, 23 Sep 2007, 13:31
Phoenix	Yes, it does.
Wed, 26 Sep 2007, 13:47
dna	. . . Then how do I differentiate between more than one stream, and check for a unique stream so that it can be blocked? -=-=- DNA
Wed, 26 Sep 2007, 13:49
dna	Also, in this code: AppTitle "TEST_CLIENT":SeedRnd MilliSecs() THE_SERVER=OpenTCPStream("127.0.0.1",8080) If THE_SERVER=0 Then Print"THERE WAS NO SERVER":Delay 2000:End While Not KeyDown(1) If KeyDown(57) If THE_SERVER<>0 WriteLine(THE_SERVER,"DFHDSFH"):Print THE_SERVER:Delay 50:FlushKeys() EndIf EndIf Wend Print THE_SERVER End --v why is the 127.0.0.1 necessary? -=-=- DNA
Wed, 26 Sep 2007, 13:51
mole	I believe that is because the OpenTCPStream needs a server IP to connect to. 127.0.0.1 is your own computer. So it connects to the server which is running on your computer.
Wed, 26 Sep 2007, 14:30
Phoenix	The stream IDs are different every time you connect, so you can't just store them in a file and then use them later to block the same user. You could record their IP address and block them instead.
Wed, 26 Sep 2007, 20:26
Teasy	You can check if there is more data available in the stream using ReadAvail( stream ). And you can check if the other side disconnected in the middle of a transmission using EOF( stream ). Const TCPPort = 1024 Type Connection Field TCPStream End Type Local Hosting Local ServerHandle Local TCPStream Local Connection.Connection Graphics 400,300 , 0,3 ClsColor 64,0,0 Cls Color 192,192,192 If Lower( Input( "(H)ost/(C)lient: " ) ) = "h" Hosting = True Else Hosting = False End If If Hosting ServerHandle = CreateTCPServer( TCPPort ) If ServerHandle Print "Server created" Else RuntimeError "Unable to create server" End If Else ; Not hosting ; Connection to server TCPStream = OpenTCPStream( Input( "IP: " ) , TCPPort ) If TCPStream Print "Connection established" Else RuntimeError "Unable to establish connection" End If End If Repeat If Hosting ; New client connecting to server TCPStream = AcceptTCPStream( ServerHandle ) If TCPStream Print "Client "+DottedIP( TCPStreamIP( TCPStream ) )+":"+TCPStreamPort( TCPStream )+" connected" Connection = New Connection Connection\TCPStream = TCPStream End If ; Check for messages from clients For Connection = Each Connection If Eof( Connection\TCPStream ) Print "Client "+DottedIP( TCPStreamIP( Connection\TCPStream ) )+":"+TCPStreamPort( Connection\TCPStream )+" disconnected" Delete Connection Else ; Read messages While ReadAvail( Connection\TCPStream ) Wend End If Next Else ; Not hosting ; Check for messages from server If Eof( TCPStream ) Print "Connection to host lost" Exit Else ; Read messages While ReadAvail( TCPStream ) Wend End If End If ; Debug Delay 100 Until KeyHit( 1 ) ; Esc If Hosting For Connection = Each Connection If Not Eof( Connection\TCPStream ) CloseTCPStream Connection\TCPStream EndIf Delete Connection Next ;CloseTCPServer ServerHandle Else CloseTCPStream TCPStream End If ; Debug FlushKeys Print "Press any key" WaitKey EndGraphics End --v
Mon, 01 Oct 2007, 17:56
dna	Thanks Teasy. My version of BB has the commands but no docs for the use of it. -=-=- DNA
Tue, 23 Oct 2007, 19:31
Teasy	In that case the online docs will come in handy
Thu, 25 Oct 2007, 10:56
Afr0	I hope you're not trying to make an MMORPG with Blitz? Or any MMO game for that matter. If so, I wouldn't reccommend it. Blitz uses the select() command internally to accept new connections. Without going into too much detail, chances are you're not going to be able to get a larger throughput than 64 players online at the same time before your server crashes. If you use BlitzMax, you can go up to 900 players if you compile and run your server on Linux, but that's still not a whole lot. I'd reccommend you use C# or C++.NET for the easy route, or C++ for the difficult route. If you wanna use C++, here's some things to look into: A simple IOCP client/server class Writing IOCP Winsock Application - forum thread A simple application using I/O Completion Ports and WinSock Writing scalable server applications using IOCP Winsock tutorial Edit: Or was it 90 players on Linux? o.O Either way, I wouldn't take the chance if I were you. -=-=- Afr0 Games Project Dollhouse on Github - Please fork!
Sat, 27 Oct 2007, 17:37
dna	You're probably right.