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Implemented SetServiceStatus, QueryServiceStatus.

This commit is contained in:
Alexander Yaworsky 2004-12-06 11:35:22 +00:00 committed by Alexandre Julliard
parent e3ba250034
commit bb1466e861
1 changed files with 88 additions and 32 deletions
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120
dlls/advapi32/service.c
View File

@ -42,9 +42,12 @@ static const WCHAR szServiceShmemNameFmtW[] = {'A','D','V','A','P','I','_',
'S','E','B','_','%','s',0};
static const WCHAR szServiceDispEventNameFmtW[] = {'A','D','V','A','P','I','_',
'D','I','S','P','_','%','s',0};
static const WCHAR szServiceMutexNameFmtW[] = {'A','D','V','A','P','I','_',
'M','U','X','_','%','s',0};
struct SEB /* service environment block */
{ /* resides in service's shared memory object */
SERVICE_STATUS status;
DWORD argc;
/* variable part of SEB contains service arguments */
};
@ -325,6 +328,7 @@ struct service_thread_data
HANDLE hServiceShmem;
struct SEB *seb;
HANDLE thread_handle;
HANDLE mutex; /* provides serialization of control request */
};
static DWORD WINAPI service_thread( LPVOID arg )
@ -343,6 +347,7 @@ static DWORD WINAPI service_thread( LPVOID arg )
*/
static void dispose_service_thread_data( struct service_thread_data* thread_data )
{
if( thread_data->mutex ) CloseHandle( thread_data->mutex );
if( thread_data->argv ) HeapFree( GetProcessHeap(), 0, thread_data->argv );
if( thread_data->seb ) UnmapViewOfFile( thread_data->seb );
if( thread_data->hServiceShmem ) CloseHandle( thread_data->hServiceShmem );
@ -359,6 +364,7 @@ start_new_service( LPSERVICE_MAIN_FUNCTIONW service_main, BOOL ascii )
{
struct service_thread_data *thread_data;
unsigned int i;
WCHAR object_name[ MAX_PATH ];
thread_data = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct service_thread_data) );
if( NULL == thread_data )
@ -410,6 +416,24 @@ start_new_service( LPSERVICE_MAIN_FUNCTIONW service_main, BOOL ascii )
}
}
/* init status according to docs for StartService */
thread_data->seb->status.dwCurrentState = SERVICE_START_PENDING;
thread_data->seb->status.dwControlsAccepted = 0;
thread_data->seb->status.dwCheckPoint = 0;
thread_data->seb->status.dwWaitHint = 2000;
/* create service mutex; mutex is initially owned */
snprintfW( object_name, MAX_PATH, szServiceMutexNameFmtW, thread_data->service_name );
thread_data->mutex = CreateMutexW( NULL, TRUE, object_name );
if( NULL == thread_data->mutex )
goto error;
if( ERROR_ALREADY_EXISTS == GetLastError() )
{
SetLastError( ERROR_SERVICE_ALREADY_RUNNING );
goto error;
}
/* create service thread in suspended state
* to avoid race while caller handles return value */
thread_data->service_main = service_main;
@ -457,6 +481,9 @@ static BOOL service_ctrl_dispatcher( LPSERVICE_TABLE_ENTRYW servent, BOOL ascii
return FALSE;
}
/* ready to accept control requests */
ReleaseMutex( service->mutex );
/* dispatcher loop */
for(;;)
{
@ -601,15 +628,27 @@ RegisterServiceCtrlHandlerW( LPCWSTR lpServiceName,
*/
BOOL WINAPI
SetServiceStatus( SERVICE_STATUS_HANDLE hService, LPSERVICE_STATUS lpStatus )
{ FIXME("0x%lx %p\n",hService, lpStatus);
TRACE("\tType:%lx\n",lpStatus->dwServiceType);
TRACE("\tState:%lx\n",lpStatus->dwCurrentState);
TRACE("\tControlAccepted:%lx\n",lpStatus->dwControlsAccepted);
TRACE("\tExitCode:%lx\n",lpStatus->dwWin32ExitCode);
TRACE("\tServiceExitCode:%lx\n",lpStatus->dwServiceSpecificExitCode);
TRACE("\tCheckPoint:%lx\n",lpStatus->dwCheckPoint);
TRACE("\tWaitHint:%lx\n",lpStatus->dwWaitHint);
return TRUE;
{
DWORD r;
TRACE("\tType:%lx\n",lpStatus->dwServiceType);
TRACE("\tState:%lx\n",lpStatus->dwCurrentState);
TRACE("\tControlAccepted:%lx\n",lpStatus->dwControlsAccepted);
TRACE("\tExitCode:%lx\n",lpStatus->dwWin32ExitCode);
TRACE("\tServiceExitCode:%lx\n",lpStatus->dwServiceSpecificExitCode);
TRACE("\tCheckPoint:%lx\n",lpStatus->dwCheckPoint);
TRACE("\tWaitHint:%lx\n",lpStatus->dwWaitHint);
/* FIXME: find service thread data by status handle */
/* acquire mutex; note that mutex may already be owned
* when service handles control request
*/
r = WaitForSingleObject( service->mutex, 0 );
memcpy( &service->seb->status, lpStatus, sizeof(SERVICE_STATUS) );
if( WAIT_OBJECT_0 == r || WAIT_ABANDONED == r )
ReleaseMutex( service->mutex );
return TRUE;
}
/******************************************************************************
@ -1209,11 +1248,47 @@ QueryServiceStatus( SC_HANDLE hService, LPSERVICE_STATUS lpservicestatus )
struct sc_handle *hsvc = hService;
LONG r;
DWORD type, val, size;
WCHAR str[MAX_PATH];
HANDLE hServiceShmem = NULL;
WCHAR object_name[ MAX_PATH ];
HANDLE mutex, shmem = NULL;
struct SEB *seb = NULL;
BOOL ret = FALSE, mutex_owned = FALSE;
FIXME("(%p,%p) partial\n",hService,lpservicestatus);
/* try to open service mutex */
snprintfW( object_name, MAX_PATH, szServiceMutexNameFmtW, hsvc->u.service.name );
mutex = OpenMutexW( MUTEX_ALL_ACCESS, FALSE, object_name );
if( NULL == mutex )
goto stopped;
/* hold mutex */
r = WaitForSingleObject( mutex, 30000 );
if( WAIT_FAILED == r )
goto done;
if( WAIT_TIMEOUT == r )
{
SetLastError( ERROR_SERVICE_REQUEST_TIMEOUT );
goto done;
}
mutex_owned = TRUE;
/* get service environment block */
seb = open_seb_shmem( hsvc->u.service.name, &shmem );
if( NULL == seb )
goto done;
/* get status */
memcpy( lpservicestatus, &seb->status, sizeof(SERVICE_STATUS) );
ret = TRUE;
done:
if( seb ) UnmapViewOfFile( seb );
if( shmem ) CloseHandle( shmem );
if( mutex_owned ) ReleaseMutex( mutex );
CloseHandle( mutex );
return ret;
stopped:
/* service stopped */
/* read the service type from the registry */
size = sizeof(val);
r = RegQueryValueExA(hsvc->u.service.hkey, "Type", NULL, &type, (LPBYTE)&val, &size);
@ -1223,26 +1298,7 @@ QueryServiceStatus( SC_HANDLE hService, LPSERVICE_STATUS lpservicestatus )
return FALSE;
}
lpservicestatus->dwServiceType = val;
/* FIXME: how are these determined or read from the registry? */
/* SERVICE: unavailable=0, stopped=1, starting=2, running=3? */
/* Determine if currently running via named shared memory */
snprintfW( str, MAX_PATH, szServiceShmemNameFmtW, hsvc->u.service.name );
hServiceShmem = CreateFileMappingW( INVALID_HANDLE_VALUE,
NULL, PAGE_READWRITE, 0, size, str );
if( NULL == hServiceShmem )
{
lpservicestatus->dwCurrentState = 1;
} else {
if( GetLastError() == ERROR_ALREADY_EXISTS )
{
lpservicestatus->dwCurrentState = 3;
} else {
lpservicestatus->dwCurrentState = 1;
}
CloseHandle( hServiceShmem );
}
lpservicestatus->dwCurrentState = 1; /* stopped */
lpservicestatus->dwControlsAccepted = 0;
lpservicestatus->dwWin32ExitCode = NO_ERROR;
lpservicestatus->dwServiceSpecificExitCode = 0;