创建windows服务程序-优快云博客

本文详细介绍了一个Windows服务的C++编程实例，包括服务的启动、停止、日志记录及后台任务执行。通过具体代码展示了如何注册服务控制处理器，处理服务状态，并实现服务的生命周期管理。

// WinService2.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <Windows.h>
#include <stdio.h>

SERVICE_STATUS ServiceStatus; 
SERVICE_STATUS_HANDLE hStatus; 

void WriteLog(char *str){
    FILE *log;
    log =fopen("G://log.txt", "a+");
    if (log ==NULL)
        printf("logfile init failed!");
    fprintf(log,"%s\n", str);
    fclose(log);
}

void InitService(){
    WriteLog("Monitoring started.");
}

/*用来识别服务命令的函数*/
void WINAPI ControlHandler(DWORD request) 
{ 
   switch(request) 
   { 
      case SERVICE_CONTROL_STOP: 
         WriteLog("Monitoring stopped.");
 
         ServiceStatus.dwWin32ExitCode = 0; 
         ServiceStatus.dwCurrentState = SERVICE_STOPPED; 
         SetServiceStatus (hStatus, &ServiceStatus);
         return; 
 
      case SERVICE_CONTROL_SHUTDOWN: 
         WriteLog("Monitoring stopped.");
 
         ServiceStatus.dwWin32ExitCode = 0; 
         ServiceStatus.dwCurrentState = SERVICE_STOPPED; 
         SetServiceStatus (hStatus, &ServiceStatus);
         return; 
        
      default:
         break;
    } 
 
    SetServiceStatus (hStatus, &ServiceStatus);
 
    return; 
}
/*用来后台执行任务的主函数*/
void WINAPI ServiceMain(int argc, char** argv){
    int error;

    ServiceStatus.dwServiceType = SERVICE_WIN32;
    ServiceStatus.dwCurrentState = SERVICE_START_PENDING;
    ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
    ServiceStatus.dwWin32ExitCode = 0;
    ServiceStatus.dwCheckPoint = 0;
    ServiceStatus.dwWaitHint = 0;

    hStatus = RegisterServiceCtrlHandler(
                                        L"logservice",
                                        ControlHandler);

    if (hStatus == (SERVICE_STATUS_HANDLE)0){
        return;
    }

    InitService();
    ServiceStatus.dwCurrentState = SERVICE_RUNNING; 
    SetServiceStatus (hStatus, &ServiceStatus);

    while (ServiceStatus.dwCurrentState == 
          SERVICE_RUNNING)
   {
      WriteLog("windows service");
      Sleep(1000);
   }
   return; 
}

void start(){

    SERVICE_TABLE_ENTRY ServiceTable[2];
    ServiceTable[0].lpServiceName = L"logservice";
    ServiceTable[0].lpServiceProc = (LPSERVICE_MAIN_FUNCTION)ServiceMain;
    
    ServiceTable[1].lpServiceName = NULL;
    ServiceTable[1].lpServiceProc = NULL;

    StartServiceCtrlDispatcher(ServiceTable);
}

int _tmain(int argc, _TCHAR* argv[])
{
    start();
    return 0;
}