C language implements a new process in Windows Services _c language

The example in this article describes how the C language implementation creates a new process in a Windows service. Share to everyone for your reference. Specifically as follows:

Operating environment: Visual Stdio 2008

FileName: testservice.c

#include <windows.h> #include <stdio.h> #include <time.h> #include <tchar.h> HANDLE Hmutex; 
Service_status ServiceStatus; 
Service_status_handle Servicestatushandle; 
Process_information Pi; Service control Handler Function void WINAPI Cmdcontrol (DWORD dwcode) {switch (dwcode) {case Service_control 
    _pause:servicestatus.dwcurrentstate = service_paused; 
  Break 
    Case SERVICE_CONTROL_CONTINUE:ServiceStatus.dwCurrentState = service_running; 
  Break 
    Case Service_control_stop:waitforsingleobject (Hmutex,infinite); if (WaitForSingleObject (pi.hprocess, 5000)!= wait_object_0) terminateprocess (pi.hprocess,0); 
    Because I have built a process in the service, it is necessary to stop the process when the service is stopped servicestatus.dwcurrentstate = service_stopped; 
    Servicestatus.dwwin32exitcode = 0; 
    Servicestatus.dwcheckpoint = 0; 
    Servicestatus.dwwaithint = 0; if (SetServiceStatus (servicestatushandle,&servicestatus) ==0) {printf ("setservicesTatus in Cmdcontrol in Switch Error!\n "); 
  } return; 
  Case Service_control_interrogate:break; 
  Default:break; } if (SetServiceStatus (servicestatushandle,&servicestatus) ==0) {printf ("SetServiceStatus in Cmdcontrol out 
  Switch Error!\n "); 
} return; 
 int WriteToLog (char* str) {file* log; 
 Log = fopen ("Dma_ws.log", "A +"); 
 if (log = = NULL) return-1;  
 fprintf (log, "%s\n", str);  
 fclose (log); 
return 0;    //service servicemain Function void WINAPI Cmdstart (DWORD dwargc,lptstr *lpargv) {Servicestatus.dwservicetype 
  = Service_win32; 
  Servicestatus.dwcurrentstate = service_start_pending; servicestatus.dwcontrolsaccepted = Service_accept_stop | 
  Service_accept_pause_continue; 
  Servicestatus.dwservicespecificexitcode = 0; 
  Servicestatus.dwwin32exitcode = 0; 
  Servicestatus.dwcheckpoint = 0; 
  Servicestatus.dwwaithint = 0; Servicestatushandle=registerservicectrlhandler (TEXT ("Ntkrnl"), Cmdcontrol); 
    Registration Control Responder if (Servicestatushandle = 0) {printf ("RegisterServiceCtrlHandler Error!\n"); 
  return; 
  } servicestatus.dwcurrentstate = service_running; 
  Servicestatus.dwcheckpoint = 0; 
  Servicestatus.dwwaithint = 0; if (SetServiceStatus (servicestatushandle,&servicestatus) ==0) {printf ("SetServiceStatus in Cmdstart Error!\n") 
    ; 
  return; 
  //Next you can do what you want to do, I have a new process here startupinfo si; 
  ZeroMemory (&si, sizeof (SI)); 
  SI.CB = sizeof (SI); 
  Si.wshowwindow = true; 
  ZeroMemory (&pi, sizeof (PI)); 
  Char buf[100] ={0}; TCHAR szcommandline[] = TEXT ("C:\\Program Files (x86) \\IronPython 2.7.1\\ipy.exe-c:\\dxmonitorsystem\\dxhttpserver.py 
  "); 
  TCHAR cwd[] = TEXT ("C:\\dxmonitorsystem"); if (! 
   CreateProcess (NULL,//Create a new process after the service runs, the actual work is done by the newly created process szcommandline, NULL, NULL, FALSE, 0, NULL, CWD,//This parameter is necessary, and if the absolute path, otherwise the service will not find the file that creates the new process the directory &si, &pi)) {sprintf (buf, CreAteprocess failed (%d). \ n ", GetLastError ()); 
  WriteToLog (BUF); 
   The else {//unused handle is best to turn off//closehandle (Pi.hthread); 
   CloseHandle (pi.hprocess); 
   sprintf (BUF, "New process id:%d\n", pi.dwprocessid); 
   sprintf (Buf+strlen (BUF), "New process Master Thread id:%d\n", pi.dwthreadid); 
  WriteToLog (BUF); 
  } writetolog ("hello,world\n"); 
return; 
  int main () {service_table_entry dispatchtable[] = {{TEXT ("NTKRNL"), Cmdstart}, {null, NULL}};
  StartServiceCtrlDispatcher (dispatchtable); 
Note: Cmdstart function return 0; 

 }

How to use:

Installation Services: SC create testservice binpath= c:\testService.exe

Delete Service: SC delete testservice

I hope this article will help you with the C language program.