C语言实现在windows服务中新建进程的方法

#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); //由于我自己在服务里建了一个进程，所以当服务停止时需要将建的进程也停掉     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); //注册控制响应程序   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 ;   }   // 接下来可以做你要做的事了，我这里新建了一个进程   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, //在服务运行后新建了一个进程，实际的工作都由新建的进程完成    szCommandLine,    NULL,    NULL,    FALSE,    0,    NULL,    cwd, //这个参数必不可少，而且要是绝对路径，不然服务会找不到创建新进程所需文件所在目录    &si,    &pi))   {    sprintf(buf, "CreateProcess failed (%d)./n", GetLastError());    WriteToLog(buf);   }   else   {    // 不使用的句柄最好关掉    //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);  //注意：CmdStart函数  return 0; }