Window Service Question

[aman2006]

hi I wrote a window service in which i am using the SOCKET API who listens to the clinet. This service runs fine on win2000 but if i run this on win2003 Server, it stop with some access violation error c0000005. I don't know whats is the problem. If i run my code without service means i make the console application and run this it does not show any error on win2003. I have this code like: int _tmain(int argc, TCHAR* argv[], TCHAR* envp[]) { int nRetCode = 0; if(FillParams()) _chdir(DIR_PATH); else return 0; SERVICE_TABLE_ENTRY ServiceTable[2]; ServiceTable[0].lpServiceName = "TibcoTCPServer"; ServiceTable[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTION)ServiceMain; ServiceTable[1].lpServiceName = NULL; ServiceTable[1].lpServiceProc = NULL; // Start the control dispatcher thread for our service StartServiceCtrlDispatcher(ServiceTable); return nRetCode; } void ServiceMain(int argc, char** argv) { int error; ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS; // SERVICE_WIN32_SHARE_PROCESS;// SERVICE_WIN32; ServiceStatus.dwCurrentState = SERVICE_START_PENDING; ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN; ServiceStatus.dwWin32ExitCode = 0; ServiceStatus.dwServiceSpecificExitCode = 0; ServiceStatus.dwCheckPoint = 0; ServiceStatus.dwWaitHint = 0; hStatus = RegisterServiceCtrlHandler( "TibcoTCPServer", (LPHANDLER_FUNCTION)ControlHandler); if (hStatus == (SERVICE_STATUS_HANDLE)0) { // Registering Control Handler failed WriteToLog("Registring Control Handler failed"); return; } // Initialize Service error = InitService(); if (error) { // Initialization failed ServiceStatus.dwCurrentState = SERVICE_STOPPED; ServiceStatus.dwWin32ExitCode = -1; SetServiceStatus(hStatus, &ServiceStatus); return; } // WriteToLog("Service Started _2."); // We report the running status to SCM. ServiceStatus.dwCurrentState = SERVICE_RUNNING; SetServiceStatus (hStatus, &ServiceStatus); AfxBeginThread(MTServerThread,0); return; } UINT MTServerThread(LPVOID pParam) { WSADATA wsaData; sockaddr_in local; int wsaret=WSAStartup(0x101,&wsaData); if(wsaret!=0) { return 0; } local.sin_family=AF_INET; local.sin_addr.s_addr=INADDR_ANY; int nPort = atoi(PORT); local.sin_port=htons((u_short)nPort); server=s

[Milton Karimbekallil]

hi Shailesh, If ur code works well as a console app and not as a service, do one thing, goto SCM, take the properties of ur service, goto log on tab and click on "Run As" option button - enter ur username and password. Because, it seems in win2003 the local system account doens't have the same set of rights as it has in 2000. But I have noted some other issues in the code. First of don't use AfxBeginthread in a console app, instead of this, use createthread. Use of AfxBeginthread will cause serious memory leak. chk msdn, very gud explanation is there.. Second thing, in ServiceMain in the last line there is no WaitForSingleObject call. So After u call AfxBeginthread serviceMain will terminate. i don't understand how it worked on win2000. chk thease two things first and try again in 2003. rgds...mil10

[Stlan]

I'm a bit worried. I often use AfxBeginthread and it's the first time I hear about memory leaks while using this function. I would like to know more. Could you please provide a link or any reference ?

[aman2006]

Hello Mil Service is started now on win2003, Now i am using the createthread and waitforsingleobject. There is no memory error but now i got one more problem it is giving me the clinet Socket error from the function below. I don't know what is the problem now i did not change any part of code for client request. can u suggest me something. UINT ClientThread(LPVOID pParam) { char buff[MAX_BUFFER_LENGTH]; CString cmd; CString params; int n; BOOL auth=false; SOCKET client=(SOCKET)pParam; // send(client,buff,strlen(buff),0); int nCounter = 0; CString strData; CString strFileName; SYSTEMTIME sysTime; while(true) { n=recv(client,buff,MAX_BUFFER_LENGTH,0); if(n==SOCKET_ERROR ) { WriteToLog("Client Socket Error"); break; } if(n == 0) { //continue; //if no data recieve exit the loop and close the connection and Client Thread break; } buff[n]=0; params = (char*)buff; if(nCounter == 0) { nCounter += n; WriteToLog((LPSTR)(LPCTSTR)params); GetLocalTime(&sysTime); strFileName.Format("%s\\User%d%d%d%d%d%d%d.xml",DataFolder,sysTime.wMonth,sysTime.wDay ,sysTime.wYear ,sysTime.wHour ,sysTime.wMinute ,sysTime.wSecond ,sysTime.wMilliseconds ); if(!xmlFile.Open(strFileName,CFile::modeWrite | CFile::modeCreate,NULL)) { errorMsg.Format("Unable to create %s file",strFileName); WriteToLog((LPSTR)(LPCTSTR)errorMsg); } int nRetVal = params.Find(";",0); if(nRetVal != -1) { cmd = params.Left(nRetVal); if(n > nRetVal) { strData = params.Mid(nRetVal + 1); { LPSTR lpstr = (LPSTR)(LPCTSTR)(strData); xmlFile.Write((PVOID)lpstr,strlen(lpstr)); } } }//end nRetVal else { // USES_CONVERSION; LPSTR lpstr = (LPSTR)(LPCTSTR)(params); xmlFile.Write((PVOID)lpstr,strlen(lpstr)); } if(params.Find(ENDXMLTAG) != -1) { xmlFile.Close (); nCounter = 0; ExecuteDosent(cmd,strFileName); cmd.MakeUpper(); if(cmd.Compare("DRUSER")) ExecuteInvokeBat(strFileName); //break; } }//End nCounter else { nCounter += n; LPSTR lpstr = (LPSTR)(LPCTSTR)(params); xmlFile.Write((PVOID)lpstr,strlen(lpstr)); if(params.Find(ENDXMLTAG) != -1) { xmlFile.Close (); nCounter = 0; WriteToLog((LPSTR)(LPCTSTR)params); ExecuteDosent(cmd,strFileName); cmd.MakeUpper(); if(cmd.Com