C語言實(shí)現(xiàn)在windows服務(wù)中新建進(jìn)程的方法
本文實(shí)例講述了C語言實(shí)現(xiàn)在windows服務(wù)中新建進(jìn)程的方法。分享給大家供大家參考。具體如下:
運(yùn)行環(huán)境:visual stdio 2008
文件名: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); //由于我自己在服務(wù)里建了一個(gè)進(jìn)程,所以當(dāng)服務(wù)停止時(shí)需要將建的進(jìn)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); //注冊(cè)控制響應(yīng)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 ; } // 接下來可以做你要做的事了,我這里新建了一個(gè)進(jìn)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, //在服務(wù)運(yùn)行后新建了一個(gè)進(jìn)程,實(shí)際的工作都由新建的進(jìn)程完成 szCommandLine, NULL, NULL, FALSE, 0, NULL, cwd, //這個(gè)參數(shù)必不可少,而且要是絕對(duì)路徑,不然服務(wù)會(huì)找不到創(chuàng)建新進(jìn)程所需文件所在目錄 &si, &pi)) { sprintf(buf, "CreateProcess failed (%d).\n", GetLastError()); WriteToLog(buf); } else { // 不使用的句柄最好關(guān)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函數(shù) return 0; }
使用方法:
安裝服務(wù):sc create testService binpath= c:\testService.exe
刪除服務(wù): sc delete testService
希望本文所述對(duì)大家的C語言程序設(shè)計(jì)有所幫助。
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