Sweden-Number/dlls/wiaservc/service.c

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/*
* ServiceMain function for wiaservc running within svchost
*
* Copyright 2009 Damjan Jovanovic
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "windef.h"
#include "objbase.h"
#include "winsvc.h"
#include "wia_lh.h"
#include "wiaservc_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wia);
static HANDLE stop_event = NULL;
static SERVICE_STATUS_HANDLE status_handle;
static SERVICE_STATUS status;
static DWORD dwReg;
static VOID
UpdateStatus(DWORD dwCurrentState, DWORD dwWin32ExitCode, DWORD dwWaitHint)
{
status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
status.dwCurrentState = dwCurrentState;
if (dwCurrentState == SERVICE_START_PENDING)
status.dwControlsAccepted = 0;
else
status.dwControlsAccepted
= (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_PAUSE_CONTINUE
| SERVICE_ACCEPT_SHUTDOWN);
status.dwWin32ExitCode = 0;
status.dwServiceSpecificExitCode = 0;
status.dwCheckPoint = 0;
status.dwWaitHint = dwWaitHint;
if (!SetServiceStatus(status_handle, &status)) {
ERR("failed to set service status\n");
SetEvent(stop_event);
}
}
/* Handle incoming ControlService signals */
static DWORD WINAPI
ServiceHandler(DWORD ctrl, DWORD event_type, LPVOID event_data, LPVOID context)
{
switch (ctrl) {
case SERVICE_CONTROL_STOP:
case SERVICE_CONTROL_SHUTDOWN:
TRACE("shutting down service\n");
UpdateStatus(SERVICE_STOP_PENDING, NO_ERROR, 0);
SetEvent(stop_event);
break;
default:
FIXME("ignoring handle service ctrl %lx\n", ctrl);
UpdateStatus(status.dwCurrentState, NO_ERROR, 0);
break;
}
return NO_ERROR;
}
static BOOL
StartCount(void)
{
HRESULT hr;
TRACE("\n");
hr = CoInitializeEx(NULL, COINIT_MULTITHREADED);
if (FAILED(hr))
return FALSE;
hr = CoInitializeSecurity(NULL, -1, NULL, NULL, RPC_C_AUTHN_LEVEL_NONE,
RPC_C_IMP_LEVEL_IMPERSONATE, NULL, EOAC_NONE,
NULL);
if (FAILED(hr))
return FALSE;
hr = CoRegisterClassObject(&CLSID_WiaDevMgr,
(IUnknown *) &WIASERVC_ClassFactory.IClassFactory_iface,
CLSCTX_LOCAL_SERVER, REGCLS_MULTIPLEUSE, &dwReg);
if (FAILED(hr))
return FALSE;
return TRUE;
}
/* Service entry point */
VOID WINAPI
ServiceMain(DWORD dwArgc, LPWSTR *lpszArgv)
{
TRACE("(%ld, %p)\n", dwArgc, lpszArgv);
stop_event = CreateEventW(NULL, TRUE, FALSE, NULL);
if (!stop_event) {
ERR("failed to create stop_event\n");
return;
}
status_handle = RegisterServiceCtrlHandlerExW(L"stisvc", ServiceHandler, NULL);
if (!status_handle) {
ERR("failed to register handler: %lu\n", GetLastError());
return;
}
UpdateStatus(SERVICE_START_PENDING, NO_ERROR, 3000);
if (!StartCount()) {
ERR("failed starting service thread\n");
UpdateStatus(SERVICE_STOPPED, NO_ERROR, 0);
return;
}
UpdateStatus(SERVICE_RUNNING, NO_ERROR, 0);
WaitForSingleObject(stop_event, INFINITE);
CoRevokeClassObject(dwReg);
UpdateStatus(SERVICE_STOPPED, NO_ERROR, 0);
CloseHandle(stop_event);
TRACE("service stopped\n");
CoUninitialize();
}