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Sorry, I've been away from the list for awhile and forgot we don't have attachments anymore. Code is below.... 0154.00 * Obtain a listening socket descriptor 0155.00 C Eval SD = Socket(AF_INET: SOCK_STREAM: 0) 0156.00 C LogLvl IfEQ LogAll 0157.00 C Eval EventID = 'ServerSocket' 0158.00 C CallP EventLog (EventID) 0159.00 C EndIF 0160.00 0161.00 * If Socket failed - End the server program 0162.00 C If SD < 0 0163.00 C LogLvl IfNE LogNone 0164.00 C Eval EventID = 'Socket Failed' 0165.00 C CallP EventLog (EventID) 0166.00 C EndIF 0167.00 C Eval *InLR = *On 0168.00 C Return 0169.00 C EndIf 0170.00 0171.00 * Allow the socket description to be reusable 0172.00 C Eval RC = SetSockOpt(SD: SOL_SOCKET 0173.00 C : SO_REUSEADDR 0174.00 C : %Addr(OptVal) 0175.00 C : %Size(OptVal)) 0176.00 C LogLvl IfEQ LogAll 0177.00 C Eval EventID = 'SvrSetSckOpt' 0178.00 C CallP EventLog (EventID) 0179.00 C EndIf 0180.00 0181.00 * If SetSockOpt failed - End the server program 0182.00 C If RC < 0 0183.00 C LogLvl IfNE LogNone 0184.00 C Eval EventID = 'SetSockOpt Failed' 0185.00 C CallP EventLog (EventID) 0186.00 C EndIF 0187.00 C Eval *InLR = *On 0188.00 C Return 0189.00 C EndIf 0190.00 0191.00 0192.00 * Bind the socket to a local address 0193.00 C Eval SocketAddr = *LOVAL 0194.00 C Eval SinFamily = AF_INET 0195.00 C Eval SinPort = PortNumber 0196.00 C Eval SinAddr = INADDR_ANY 0197.00 C Eval RC = Bind (SD: %ADDR(SocketAddr) 0198.00 C : %SIZE(SocketAddr)) 0199.00 C LogLvl IfEQ LogAll 0200.00 C Eval EventId ='ServerBind' 0201.00 C CallP EventLog(EventID) 0202.00 C EndIf 0203.00 0204.00 * If Bind failed - End the server program 0205.00 C If RC < 0 0206.00 C LogLvl IfNE LogNone 0207.00 C Eval EventID = 'ServerBind Failed' 0208.00 C CallP EventLog (EventID) 0209.00 C EndIF 0210.00 C Eval *InLR = *On 0211.00 C Return 0212.00 C EndIf 0213.00 0214.00 * Listen to # of clients passed in MaxConnect 0215.00 C Eval RC = listen (SD : MaxConnect) 0216.00 C LogLvl IfEQ LogAll 0217.00 C Eval EventID = 'ServerListen' 0218.00 C CallP EventLog (EventID) 0219.00 C EndIf 0220.00 0221.00 * If Listen failed - End the server program 0222.00 C If RC < 0 0223.00 C LogLvl IfNE LogNone 0224.00 C Eval EventID = 'ServerListen Failed' 0225.00 C CallP EventLog (EventID) 0226.00 C EndIF 0227.00 C Eval *InLR = *On 0228.00 C Return 0229.00 C EndIf 0230.00 0231.00 * Clear readset array 0232.00 C CallP FDZero(FDes) 0233.00 C Eval SckFlags '0' 0234.00 0235.00 * Set on the listening socket in readset and flag array 0236.00 C CallP FDSet(SD: FDes) 0237.00 C Eval SckFlags(SD + 1) = '1' 0238.00 C Eval CurMax = SD 0239.00 0240.00 * - - - - - - - - - - 0241.00 * Processing loop 0242.00 0243.00 C DoW 0 = 0 0244.00 0245.00 * .Restore readset using the flag array 0246.00 * Flag '1' sets on, flag '0' sets off 0247.00 C 0 Do CurMax J 0248.00 C If SckFlags(J + 1) = '1' 0249.00 C CallP FDSet(J: FDes) 0250.00 C Else 0251.00 C CallP FDClr(J: FDes) 0252.00 C EndIf 0253.00 C EndDo 0254.00 0255.00 * .Select the sockets that connect or send data 0256.00 * (deselect other sockets) 0257.00 C Eval RC = Select(CurMax + 1 0258.00 C : FD_Set@: *NULL: *NULL 0259.00 C : %Addr(WaitTime) ) 0260.00 C LogLvl IfEQ LogAll 0261.00 C Eval EventID = 'ServerSelect' 0262.00 C CallP EventLog (EventID) 0263.00 C EndIf 0264.00 0265.00 * .If Select timed out - Restore readset and reenter loop 0266.00 * (there is no incoming request waiting) 0267.00 C If RC = 0 0268.00 C Iter 0269.00 C EndIf 0270.00 0271.00 * .If Select was unsuccessful - End the server program 0272.00 * (a programming error) 0273.00 C If RC < 0 0274.00 C CallP SckClose(SD) 0275.00 C LogLvl IfNE LogNone 0276.00 C Eval EventID = 'ServerSelect Failed' 0277.00 C CallP EventLog (EventID) 0278.00 C EndIF 0279.00 C Eval *InLR = *On 0280.00 C Return 0281.00 C EndIf 0282.00 0283.00 * .Process all incoming requests if Select is successful 0284.00 C If RC > 0 0285.00 0286.00 * ..Inspection loop. Inspect all description bits in readset 0287.00 * up to the current maximum and process those which are set on 0288.00 C 0 Do CurMax I 0289.00 0290.00 * ...If a bit is set on - Process the incoming request 0291.00 C If FDIsSet(I: FDes) > 0 0292.00 0293.00 * ....If bit represents a listening socket - Accept a Connect 0294.00 C If I = SD 0295.00 0296.00 * .....Try to accept the first client in queue 0297.00 * and create a new client's socket - SD2 0298.00 C Eval SD2 = Accept(SD: SockAddr: AddrLen) 0299.00 C LogLvl IfEQ LogAll 0300.00 C Eval EventID = 'ServerAccept' 0301.00 C CallP EventLog (EventID) 0302.00 C EndIf 0303.00 0304.00 * .....Accept OK - Add the socket to readset 0305.00 C If SD2 >= 0 0306.00 C CallP FDSet (SD2: FDes) 0307.00 C Eval SckFlags(SD2 + 1) = '1' 0308.00 0309.00 * .....Set a new current maximum of used sockets 0310.00 C If SD2 > CurMax 0311.00 C Eval CurMax = SD2 0312.00 C EndIf 0313.00 0314.00 * ....End of Accept 0315.00 C EndIf 0316.00 0317.00 * ....Else (not a listening socket)-Receive and Process data 0318.00 C Else 0318.01 C Eval SocketData = *Blanks 0319.00 0320.00 * ....Receive first 8 bytes of header length 0321.00 C Eval RC = Recv(I: SocketData@ 0322.00 C : 8: 0) 0323.00 * If no data received, then reset RC 0324.00 C Eval SockDtaLen = %Len(%Trim(SocketData)) 0325.00 C If SockDtaLen = 0 0326.00 C Eval RC = 0 0326.01 C Else 0326.02 * ....Use header length to receive request message 0326.03 C Eval MsgLen = SocketData 0326.04 0326.05 * Test for End of Server job 0326.06 C If MsgLen = 'ENDSERVE' 0326.08 C CallP SckClose(SD) 0326.09 C Eval *INLR = *ON 0326.10 C Return 0326.11 C EndIf 0326.12 0326.13 * ....Convert socket data from ASCII to EBCDIC 0326.15 C CallP Translate(8: MsgLen: 'EBCDIC') 0326.17 0326.18 C Move MsgLen MsgLenVar 0326.19 * ....Receive from current socket up to header length 0326.20 C Eval RC = Recv(I: SocketData@ 0326.21 C : MsgLenVar: 0) 0326.22 0326.23 C LogLvl IfEQ LogAll 0326.24 C Eval EventID = 'ServerRecv' 0326.25 C CallP EventLog (EventID) 0326.26 C EndIf 0326.27 0326.28 * .....If Recv failed - End the server program 0326.29 C If RC < 0 0326.30 C**** Eval *InLR = *On 0326.31 C**** Return 0326.32 C LogLvl IfNE LogNone 0326.33 C Eval EventID = 'Recv Ended' 0326.34 C CallP EventLog (EventID) 0326.35 C EndIf 0326.36 C Leave 0326.37 C EndIf 0326.38 0326.39 C Eval SockDtaLen = %Len(%Trim(SocketData)) 0326.40 * If no data received, then reset RC 0326.41 C If SockDtaLen = 0 0326.42 C Eval RC = 0 0326.43 C Eval MsgLenVar = 0 0326.44 C Else 0326.46 * If header length equal data length received 0326.47 C If SockDtaLen = MsgLenVar 0326.48 * .....Recv OK - Process data 0326.49 C ExSr ProcData 0326.50 C Else 0326.51 * .....Recv Not OK - Create and send an error message 0326.52 C ExSr MsgLenErr 0326.53 C EndIf 0326.55 C Endif 0326.56 0327.00 C EndIf 0328.00 0348.00 * ...End of Accept or Receive (current socket processing) 0349.00 C EndIf 0350.00 0351.00 * ..End of Process incoming request 0352.00 C EndIf 0353.00 0354.00 * ..End of Inspection loop 0355.00 C EndDo 0356.00 0357.00 * .End of Process all incoming requests 0358.00 C EndIf 0359.00 0360.00 * End of Processing loop 0361.00 C EndDo 0362.00 ----Original Message Follows------ Hi all, I have a sockets application that I'm having a problem with, and wonder if anyone can point me in the right direction. The system is working, but it is also eating up the machine. When I run the server program in debug, I find that the return code from the select() statement is always coming back with a value of '1'. In this particular case I sent one message from the client. The server recognized the activity on the socket and issued a read against it, and processed the incomming message. It then wrote the response back to the socket. From that point on, with every loop through the code, it continues to show a return code of '1' for that socket, even though there are zero bytes read. Because of this it appears the select is never sleeping as it should, and the result is a fast running loop that is eating all the machine's resources. I've attached the main part of the code. The select() is at 257. I would appreciate any pointers you might have. Thanks in advance! Jim Whalen PH 972 429-8238 jimw2001@hotmail.com _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com
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