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)里建了一個進(jìn)程,所以當(dāng)服務(wù)停止時需要將建的進(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, //這個參數(shù)必不可少,而且要是絕對路徑,不然服務(wù)會找不到創(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
希望本文所述對大家的C語言程序設(shè)計(jì)有所幫助。
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