This graph shows which files directly or indirectly include this file:

Classes
struct	_USER_REFERENCE_ENTRY

Typedefs
typedef struct _USER_REFERENCE_ENTRY	USER_REFERENCE_ENTRY

typedef struct _USER_REFERENCE_ENTRY *	PUSER_REFERENCE_ENTRY

Functions
VOID FASTCALL	UserReferenceObject (PVOID obj)

PVOID FASTCALL	UserReferenceObjectByHandle (HANDLE handle, HANDLE_TYPE type)

BOOL FASTCALL	UserDereferenceObject (PVOID obj)

PVOID FASTCALL	UserCreateObject (PUSER_HANDLE_TABLE ht, struct _DESKTOP pDesktop, PTHREADINFO pti, HANDLE h, HANDLE_TYPE type, ULONG size)

BOOL FASTCALL	UserDeleteObject (HANDLE h, HANDLE_TYPE type)

PVOID	UserGetObject (PUSER_HANDLE_TABLE ht, HANDLE handle, HANDLE_TYPE type)

PVOID	UserGetObjectNoErr (PUSER_HANDLE_TABLE, HANDLE, HANDLE_TYPE)

BOOL FASTCALL	UserCreateHandleTable (VOID)

BOOL FASTCALL	UserObjectInDestroy (HANDLE)

BOOL FASTCALL	UserMarkHandleGranted (HANDLE)

void	DbgUserDumpHandleTable ()

PVOID FASTCALL	ValidateHandle (HANDLE handle, HANDLE_TYPE type)

BOOLEAN	UserDestroyObjectsForOwner (PUSER_HANDLE_TABLE Table, PVOID Owner)

BOOL FASTCALL	UserMarkObjectDestroy (PVOID)

PVOID FASTCALL	UserAssignmentLock (PVOID *ppvObj, PVOID pvNew)

PVOID FASTCALL	UserAssignmentUnlock (PVOID *ppvObj)

static __inline VOID	UserRefObjectCo (PVOID obj, PUSER_REFERENCE_ENTRY UserReferenceEntry)

static __inline VOID	UserDerefObjectCo (PVOID obj)

void	FreeProcMarkObject (_In_ PVOID Object)

Variables
PUSER_HANDLE_TABLE	gHandleTable

Typedef Documentation

◆ PUSER_REFERENCE_ENTRY

typedef struct _USER_REFERENCE_ENTRY * PUSER_REFERENCE_ENTRY

◆ USER_REFERENCE_ENTRY

typedef struct _USER_REFERENCE_ENTRY USER_REFERENCE_ENTRY

Function Documentation

◆ DbgUserDumpHandleTable()

void DbgUserDumpHandleTable ( )

Referenced by alloc_user_entry(), UserDeleteW32Process(), and UserProcessDestroy().

◆ FreeProcMarkObject()

void FreeProcMarkObject ( _In_ PVOID Object )

Definition at line 175 of file object.c.

{
    PPROCESSINFO ppi = ((PPROCMARKHEAD)Object)->ppi;
 
    UserHeapFree(Object);
 
    ppi->UserHandleCount--;
    IntDereferenceProcessInfo(ppi);
}

Referenced by FreeCurIconObject().

◆ UserAssignmentLock()

PVOID FASTCALL UserAssignmentLock	(	PVOID *	ppvObj,
		PVOID	pvNew
	)

Definition at line 861 of file object.c.

{
    PVOID pvOld = *ppvObj;
    *ppvObj = pvNew;
 
    if (pvOld && pvOld == pvNew)
        return pvOld;
 
    if (pvNew)
        UserReferenceObject(pvNew);
 
    if (pvOld)
    {
        if (UserDereferenceObject(pvOld))
            pvOld = NULL;
    }
 
    return pvOld;
}

Referenced by co_IntSetKeyboardLayoutForProcess(), co_UserActivateKeyboardLayout(), co_UserCreateWindowEx(), InitThreadCallback(), IntImmActivateLayout(), IntTranslateKbdMessage(), NtUserSetThreadLayoutHandles(), and UserCreateInputContext().

◆ UserAssignmentUnlock()

PVOID FASTCALL UserAssignmentUnlock ( PVOID * ppvObj )

Definition at line 881 of file object.c.

{
    PVOID pvOld = *ppvObj;
    *ppvObj = NULL;
 
    if (pvOld)
    {
        if (UserDereferenceObject(pvOld))
            pvOld = NULL;
    }
 
    return pvOld;
}

Referenced by co_UserFreeWindow(), ExitThreadCallback(), and IntWinStaObjectDelete().

◆ UserCreateHandleTable()

BOOL FASTCALL UserCreateHandleTable ( VOID )

Definition at line 540 of file object.c.

{
   PVOID mem;
   INT HandleCount = 1024 * 4;
 
   // FIXME: Don't alloc all at once! Must be mapped into umode also...
   mem = UserHeapAlloc(sizeof(USER_HANDLE_ENTRY) * HandleCount);
   if (!mem)
   {
      ERR("Failed creating handle table\n");
      return FALSE;
   }
 
   gHandleTable = UserHeapAlloc(sizeof(USER_HANDLE_TABLE));
   if (gHandleTable == NULL)
   {
       UserHeapFree(mem);
       ERR("Failed creating handle table\n");
       return FALSE;
   }
 
   // FIXME: Make auto growable
   UserInitHandleTable(gHandleTable, mem, sizeof(USER_HANDLE_ENTRY) * HandleCount);
 
   return TRUE;
}

Referenced by InitUserImpl().

◆ UserCreateObject()

PVOID FASTCALL UserCreateObject	(	PUSER_HANDLE_TABLE	ht,
		struct _DESKTOP *	pDesktop,
		PTHREADINFO	pti,
		HANDLE *	h,
		HANDLE_TYPE	type,
		ULONG	size
	)

◆ UserDeleteObject()

BOOL FASTCALL UserDeleteObject	(	HANDLE	h,
		HANDLE_TYPE	type
	)

Definition at line 740 of file object.c.

{
   PVOID body = UserGetObject(gHandleTable, h, type);
 
   if (!body) return FALSE;
 
   ASSERT( ((PHEAD)body)->cLockObj >= 1);
   ASSERT( ((PHEAD)body)->cLockObj < 0x10000);
 
   return UserFreeHandle(gHandleTable, h);
}

Referenced by co_UserFreeWindow(), co_UserLoadKbdLayout(), DestroyCallProc(), IntDestroyCurIconObject(), IntDestroyInputContext(), IntDestroyMenuObject(), IntDestroyMonitorObject(), IntEndDeferWindowPosEx(), IntFreeElementData(), IntFreeHook(), IntRemoveEvent(), NtUserCallOneParam(), NtUserConvertMemHandle(), NtUserCreateAcceleratorTable(), RemoveTimer(), UnloadKbdFile(), UserDestroyAccelTable(), UserDestroyInputContext(), UserLoadKbdFile(), and UserUnloadKbl().

◆ UserDereferenceObject()

BOOL FASTCALL UserDereferenceObject ( PVOID obj )

Definition at line 647 of file object.c.

{
    PHEAD ObjHead = Object;
 
    ASSERT(ObjHead->cLockObj >= 1);
    ASSERT(ObjHead->cLockObj < 0x10000);
 
    if (--ObjHead->cLockObj == 0)
    {
        PUSER_HANDLE_ENTRY entry;
        HANDLE_TYPE type;
 
        entry = handle_to_entry(gHandleTable, ObjHead->h);
 
        ASSERT(entry != NULL);
        /* The entry should be marked as in deletion */
        ASSERT(entry->flags & HANDLEENTRY_INDESTROY);
 
        type = entry->type;
        ASSERT(type != TYPE_FREE);
        ASSERT(type < TYPE_CTYPES);
 
        /* We can now get rid of everything */
        free_user_entry(gHandleTable, entry );
 
#if 0
        /* Call the object destructor */
        ASSERT(ObjectCallbacks[type].ObjectCleanup != NULL);
        ObjectCallbacks[type].ObjectCleanup(Object);
#endif
 
        /* And free it */
        ASSERT(ObjectCallbacks[type].ObjectFree != NULL);
        ObjectCallbacks[type].ObjectFree(Object);
 
        return TRUE;
    }
    return FALSE;
}

Referenced by _Success_(), co_UserCreateWindowEx(), co_UserFreeWindow(), co_UserLoadKbdLayout(), co_UserSetParent(), co_WinPosSearchChildren(), CreateCallProc(), DefWndDoSizeMove(), DesktopWindowProc(), ExitThreadCallback(), FreeCurIconObject(), IntAddSynthesizedFormats(), IntCleanupCurIconCache(), IntCreateCurIconHandle(), IntCreateWindow(), IntDefWindowProc(), IntDestroyClass(), IntDestroyMonitorObject(), IntEndDeferWindowPosEx(), IntRemoveCursorFromList(), IntSetAconData(), IntSetOwner(), IntSynthesizeDib(), IntSystemSetCursor(), MENU_DrawBitmapItem(), MsqCleanupMessageQueue(), NtUserConvertMemHandle(), NtUserCreateAcceleratorTable(), NtUserDestroyCursor(), NtUserDrawIconEx(), NtUserGetCursorFrameInfo(), NtUserGetIconSize(), NtUserSetCursor(), NtUserSetWindowsHookEx(), NtUserSetWinEventHook(), NtUserUnhookWindowsHookEx(), RemoveTimer(), ReplaceWndPtr(), UserAssignmentLock(), UserAssignmentUnlock(), UserAttachThreadInput(), UserCreateInputContext(), UserCreateMenu(), UserDerefObjectCo(), UserDrawCaption(), UserDrawSysMenuButton(), UserFreeHandle(), UserLoadKbdFile(), UserSetClassLongPtr(), and UserSetCursorIconData().

◆ UserDerefObjectCo()

static __inline VOID UserDerefObjectCo ( PVOID obj )

static

Definition at line 44 of file object.h.

{
    PTHREADINFO W32Thread;
    PSINGLE_LIST_ENTRY ReferenceEntry;
    PUSER_REFERENCE_ENTRY UserReferenceEntry;
 
    ASSERT(obj != NULL);
    W32Thread = PsGetCurrentThreadWin32Thread();
    ASSERT(W32Thread != NULL);
    ReferenceEntry = PopEntryList(&W32Thread->ReferencesList);
    ASSERT(ReferenceEntry != NULL);
    UserReferenceEntry = CONTAINING_RECORD(ReferenceEntry, USER_REFERENCE_ENTRY, Entry);
    ASSERT(UserReferenceEntry != NULL);
 
    ASSERT(obj == UserReferenceEntry->obj);
    UserDereferenceObject(obj);
#if DBG
    W32Thread->cRefObjectCo--;
#endif
}

Referenced by ActivateOtherWindowMin(), co_HOOK_CallHooks(), co_IntCreateDefaultImeWindow(), co_IntPaintWindows(), co_IntProcessKeyboardMessage(), co_IntSendActivateMessages(), co_IntSendDeactivateMessages(), co_IntSendMessageTimeoutSingle(), co_IntSendMessageWithCallBack(), co_IntSnapWindow(), co_IntUnloadKeyboardLayoutEx(), co_IntUpdateWindows(), co_UserActivateKeyboardLayout(), co_UserCreateWindowEx(), co_UserFreeWindow(), co_UserGetUpdateRect(), co_UserGetUpdateRgn(), co_UserSetParent(), co_UserTrackSystemMenu(), co_VIS_WindowLayoutChanged(), co_WinPosActivateOtherWindow(), co_WinPosArrangeIconicWindows(), co_WinPosWindowFromPoint(), DefWndHandleSetCursor(), DefWndHandleSysCommand(), IntActivateWindow(), IntCheckImeShowStatus(), IntDeactivateWindow(), IntDefWindowProc(), IntDestroyOwnedWindows(), IntEndDeferWindowPosEx(), IntFocusSetInputContext(), IntImeWindowPosChanged(), IntImmActivateLayout(), IntNotifyWinEvent(), IntScrollWindowEx(), IntSendChildNCPaint(), IntSendFocusMessages(), IntSendMessageToUI(), IntSendOpenStatusNotify(), IntSendParentNotify(), MENU_EnsureMenuItemVisible(), MENU_ShowPopup(), NtGdiUpdateColors(), NtUserBeginPaint(), NtUserCallHwndLock(), NtUserCallHwndParam(), NtUserCallHwndParamLock(), NtUserDestroyWindow(), NtUserEnableScrollBar(), NtUserEndPaint(), NtUserFillWindow(), NtUserGetMenuBarInfo(), NtUserGetScrollBarInfo(), NtUserHideCaret(), NtUserMessageCall(), NtUserNotifyWinEvent(), NtUserRedrawWindow(), NtUserSBGetParms(), NtUserScrollWindowEx(), NtUserSetActiveWindow(), NtUserSetFocus(), NtUserSetInternalWindowPos(), NtUserSetMenu(), NtUserSetScrollBarInfo(), NtUserSetScrollInfo(), NtUserSetShellWindowEx(), NtUserSetWindowPlacement(), NtUserSetWindowPos(), NtUserShowCaret(), NtUserShowScrollBar(), NtUserShowWindow(), NtUserShowWindowAsync(), NtUserTrackPopupMenuEx(), NtUserTranslateAccelerator(), NtUserWindowFromPoint(), SpiNotifyNCMetricsChanged(), and WinPosDoOwnedPopups().

◆ UserDestroyObjectsForOwner()

BOOLEAN UserDestroyObjectsForOwner	(	PUSER_HANDLE_TABLE	Table,
		PVOID	Owner
	)

Definition at line 777 of file object.c.

{
    int i;
    PUSER_HANDLE_ENTRY Entry;
    BOOLEAN Ret = TRUE;
 
    /* Sweep the whole handle table */
    for (i = 0; i < Table->allocated_handles; i++)
    {
        Entry = &Table->handles[i];
 
        if (Entry->pi != Owner)
            continue;
 
        /* Do not destroy if it's already been done */
        if (Entry->flags & HANDLEENTRY_INDESTROY)
            continue;
 
        /* Call destructor */
        if (!ObjectCallbacks[Entry->type].ObjectDestroy(Entry->ptr))
        {
            ERR("Failed destructing object %p, type %u.\n", Entry->ptr, Entry->type);
            /* Don't return immediately, we must continue destroying the other objects */
            Ret = FALSE;
        }
    }
 
    return Ret;
}

Referenced by ExitThreadCallback(), and UserProcessDestroy().

◆ UserGetObject()

PVOID UserGetObject	(	PUSER_HANDLE_TABLE	ht,
		HANDLE	handle,
		HANDLE_TYPE	type
	)

Definition at line 499 of file object.c.

{
   PUSER_HANDLE_ENTRY entry;
 
   ASSERT(ht);
 
   if (!(entry = handle_to_entry(ht, handle )) || entry->type != type)
   {
      EngSetLastError(ERROR_INVALID_HANDLE);
      return NULL;
   }
   return entry->ptr;
}

Referenced by co_HOOK_CallHooks(), IntCreateWindow(), IntDeferWindowPos(), IntEndDeferWindowPosEx(), IntGetHookObject(), IntImmProcessKey(), IntSetClassWndProc(), IntSetWindowProc(), IntSynthesizeBitmap(), NtUserCreateLocalMemHandle(), NtUserQueryInputContext(), NtUserUnhookWinEvent(), NtUserUpdateInputContext(), UserDeleteObject(), UserGetAccelObject(), UserGetCallProcInfo(), UserGetMenuObject(), UserGetMonitorObject(), UserGetWindowObject(), and UserReferenceObjectByHandle().

◆ UserGetObjectNoErr()

PVOID UserGetObjectNoErr	(	PUSER_HANDLE_TABLE	ht,
		HANDLE	handle,
		HANDLE_TYPE	type
	)

Definition at line 485 of file object.c.

{
   PUSER_HANDLE_ENTRY entry;
 
   ASSERT(ht);
 
   if (!(entry = handle_to_entry(ht, handle )) || entry->type != type)
   {
      return NULL;
   }
   return entry->ptr;
}

Referenced by IntDestroyInputContext(), NC_IconForWindow(), NtUserAssociateInputContext(), NtUserDestroyInputContext(), NtUserSetCursor(), and ValidateHwndNoErr().

◆ UserMarkHandleGranted()

BOOL FASTCALL UserMarkHandleGranted ( HANDLE h )

Definition at line 726 of file object.c.

{
    PUSER_HANDLE_ENTRY entry;
 
    entry = handle_to_entry(gHandleTable, h);
    if (entry == NULL)
        return FALSE;
 
    entry->flags |= HANDLEENTRY_GRANTED;
    return TRUE;
}

◆ UserMarkObjectDestroy()

BOOL FASTCALL UserMarkObjectDestroy ( PVOID Object )

Definition at line 624 of file object.c.

{
    PUSER_HANDLE_ENTRY entry;
    PHEAD ObjHead = Object;
 
    entry = handle_to_entry(gHandleTable, ObjHead->h);
 
    ASSERT(entry != NULL);
 
    entry->flags |= HANDLEENTRY_DESTROY;
 
    if (ObjHead->cLockObj > 1)
    {
        entry->flags &= ~HANDLEENTRY_INDESTROY;
        TRACE("Count %d\n",ObjHead->cLockObj);
        return FALSE;
    }
 
    return TRUE;
}

Referenced by co_IntUnloadKeyboardLayoutEx(), co_UserFreeWindow(), IntDestroyMenuObject(), and UserDestroyInputContext().

◆ UserObjectInDestroy()

BOOL FASTCALL UserObjectInDestroy ( HANDLE h )

Definition at line 707 of file object.c.

{
  PUSER_HANDLE_ENTRY entry;
 
  if (!(entry = handle_to_entry( gHandleTable, h )))
  {
     SetLastNtError( STATUS_INVALID_HANDLE );
     return TRUE;
  }
  return (entry->flags & HANDLEENTRY_INDESTROY);
}

Referenced by co_CallHook(), IntDestroyClass(), IntSetMenuItemInfo(), NtUserSetCursor(), UserAttachThreadInput(), UserGetCurIconObject(), VerifyMenu(), and VerifyWnd().

◆ UserReferenceObject()

VOID FASTCALL UserReferenceObject ( PVOID obj )

Definition at line 754 of file object.c.

{
   PHEAD ObjHead = obj;
   ASSERT(ObjHead->cLockObj < 0x10000);
 
   ObjHead->cLockObj++;
}

Referenced by co_IntSetParent(), co_WinPosSearchChildren(), DefWndDoSizeMove(), IntDefWindowProc(), IntGetClassForDesktop(), IntGetHookObject(), IntInsertCursorIntoList(), IntLoadSystenIcons(), IntMoveClassToSharedHeap(), IntSetMenuItemInfo(), IntSystemSetCursor(), MENU_DrawBitmapItem(), MsqInitializeMessageQueue(), NtUserGetIconSize(), PopupMenuWndProc(), ReplaceWndPtr(), UserAllocHandle(), UserAssignmentLock(), UserAttachThreadInput(), UserCreateObject(), UserDrawCaption(), UserDrawSysMenuButton(), UserReferenceObjectByHandle(), UserRefObjectCo(), and UserSetClassLongPtr().

◆ UserReferenceObjectByHandle()

PVOID FASTCALL UserReferenceObjectByHandle	(	HANDLE	handle,
		HANDLE_TYPE	type
	)

Definition at line 764 of file object.c.

{
    PVOID object;
 
    object = UserGetObject(gHandleTable, handle, type);
    if (object)
    {
       UserReferenceObject(object);
    }
    return object;
}

Referenced by UserGetCurIconObject().

◆ UserRefObjectCo()

static __inline VOID UserRefObjectCo	(	PVOID	obj,
		PUSER_REFERENCE_ENTRY	UserReferenceEntry
	)