reactos/modules/rosapps/templates/skel_service/ServiceMain.c

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/*
* PROJECT: ReactOS services
* LICENSE: GPL - See COPYING in the top level directory
* FILE:
* PURPOSE: skeleton service
* COPYRIGHT: Copyright 2008 Ged Murphy <gedmurphy@reactos.org>
*
*/
#include "myservice.h"
volatile BOOL bShutDown = FALSE;
volatile BOOL bPause = FALSE;
LPTSTR ServiceName = _T("skel_service");
typedef struct _ServiceInfo
{
SERVICE_STATUS servStatus;
SERVICE_STATUS_HANDLE hStatus;
} SERVICEINFO, *PSERVICEINFO;
/********* To be moved to new file **********/
typedef struct _ServiceData
{
INT val1;
INT val2;
} SERVICEDATA, *PSERVICEDATA;
DWORD WINAPI ThreadProc(LPVOID lpParam)
{
while (!bShutDown)
Sleep(1000);
return 0;
}
/*******************************************/
static VOID
UpdateStatus(PSERVICEINFO pServInfo,
DWORD NewStatus,
DWORD Check)
{
TCHAR szSet[50];
if (Check > 0)
pServInfo->servStatus.dwCheckPoint += Check;
else
pServInfo->servStatus.dwCheckPoint = Check;
if (NewStatus > 0)
pServInfo->servStatus.dwCurrentState = NewStatus;
_sntprintf(szSet,
49,
_T("Service state 0x%lx, CheckPoint %lu"),
pServInfo->servStatus.dwCurrentState,
pServInfo->servStatus.dwCheckPoint);
LogEvent(szSet, 0, 0, LOG_FILE);
if (!SetServiceStatus(pServInfo->hStatus, &pServInfo->servStatus))
LogEvent(_T("Cannot set service status"), GetLastError(), 0, LOG_ALL);
}
static BOOL
CreateServiceThread(PSERVICEINFO pServInfo)
{
HANDLE hThread;
PSERVICEDATA servData;
UpdateStatus(pServInfo, 0, 1);
LogEvent(_T("Creating service thread"), 0, 0, LOG_FILE);
hThread = CreateThread(NULL,
0,
ThreadProc,
&servData,
0,
NULL);
if (!hThread)
{
LogEvent(_T("Failed to start service thread"), GetLastError(), 101, LOG_ALL);
return FALSE;
}
UpdateStatus(pServInfo, 0, 1);
LogEvent(_T("setting service status to running"), 0, 0, LOG_FILE);
UpdateStatus(pServInfo, SERVICE_RUNNING, 0);
WaitForSingleObject(hThread, INFINITE);
if (hThread)
CloseHandle(hThread);
return TRUE;
}
DWORD WINAPI
ServerCtrlHandler(DWORD dwControl,
DWORD dwEventType,
LPVOID lpEventData,
LPVOID lpContext)
{
PSERVICEINFO pServInfo = (PSERVICEINFO)lpContext;
switch (dwControl)
{
case SERVICE_CONTROL_SHUTDOWN:
case SERVICE_CONTROL_STOP:
LogEvent(_T("\nSetting the service to SERVICE_STOP_PENDING"), 0, 0, LOG_FILE);
InterlockedExchange((LONG *)&bShutDown, TRUE);
pServInfo->servStatus.dwWin32ExitCode = 0;
pServInfo->servStatus.dwWaitHint = 0;
UpdateStatus(pServInfo, SERVICE_STOP_PENDING, 1);
return ERROR_SUCCESS;
case SERVICE_CONTROL_PAUSE:
LogEvent(_T("Setting the service to SERVICE_PAUSED"), 0, 0, LOG_FILE);
InterlockedExchange((LONG *)&bPause, TRUE);
UpdateStatus(pServInfo, SERVICE_PAUSED, 0);
return ERROR_SUCCESS;
case SERVICE_CONTROL_CONTINUE:
LogEvent(_T("Setting the service to SERVICE_RUNNING"), 0, 0, LOG_FILE);
InterlockedExchange((LONG *)&bPause, FALSE);
UpdateStatus(pServInfo, SERVICE_RUNNING, 0);
return ERROR_SUCCESS;
case SERVICE_CONTROL_INTERROGATE:
return ERROR_SUCCESS;
default:
if (dwControl >= 128 && dwControl <= 255) /* User defined */
{
LogEvent(_T("User defined control code"), 0, 0, LOG_FILE);
return ERROR_SUCCESS;
}
else
{
LogEvent(_T("ERROR: Bad control code"), 0, 0, LOG_FILE);
return ERROR_INVALID_SERVICE_CONTROL;
}
}
}
VOID WINAPI
ServiceMain(DWORD argc, LPTSTR argv[])
{
SERVICEINFO servInfo;
LogEvent(_T("Entering ServiceMain"), 0, 0, LOG_FILE);
servInfo.servStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
servInfo.servStatus.dwCurrentState = SERVICE_STOPPED;
servInfo.servStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN | SERVICE_ACCEPT_PAUSE_CONTINUE;
servInfo.servStatus.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR;
servInfo.servStatus.dwServiceSpecificExitCode = 0;
servInfo.servStatus.dwCheckPoint = 0;
servInfo.servStatus.dwWaitHint = 1000;
LogEvent(_T("Registering service control handler"), 0, 0, LOG_FILE);
servInfo.hStatus = RegisterServiceCtrlHandlerEx(ServiceName, ServerCtrlHandler, &servInfo);
if (!servInfo.hStatus)
LogEvent(_T("Failed to register service"), GetLastError(), 100, LOG_ALL);
UpdateStatus(&servInfo, SERVICE_START_PENDING, 1);
if (!CreateServiceThread(&servInfo))
{
servInfo.servStatus.dwServiceSpecificExitCode = 1;
UpdateStatus(&servInfo, SERVICE_STOPPED, 0);
return;
}
LogEvent(_T("Service thread shut down. Set SERVICE_STOPPED status"), 0, 0, LOG_FILE);
UpdateStatus(&servInfo, SERVICE_STOPPED, 0);
LogEvent(_T("Leaving ServiceMain"), 0, 0, LOG_FILE);
}
int _tmain(int argc, LPTSTR argv[])
{
SERVICE_TABLE_ENTRY ServiceTable[] =
{
{ServiceName, ServiceMain},
{NULL, NULL }
};
InitLogging();
if (!StartServiceCtrlDispatcher(ServiceTable))
LogEvent(_T("failed to start the service control dispatcher"), GetLastError(), 101, LOG_ALL);
return 0;
}