win32u: Use syscall interface for NtUserMsgWaitForMultipleObjectsEx.

dlls/user32/user_main.c

@@ -133,7 +133,6 @@ static NTSTATUS try_finally( NTSTATUS (CDECL *func)( void *), void *arg,
 
 static const struct user_callbacks user_funcs =
 {
-    NtWaitForMultipleObjects,
     try_finally,
 };
 

dlls/win32u/driver.c

@@ -811,12 +811,8 @@ static NTSTATUS nulldrv_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *
                                                      DWORD mask, DWORD flags )
 {
     if (!count && timeout && !timeout->QuadPart) return WAIT_TIMEOUT;
-
-    if (!user_callbacks)
     return NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                      !!(flags & MWMO_ALERTABLE), timeout );
-    return user_callbacks->pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
-                                                      !!(flags & MWMO_ALERTABLE), timeout );
 }
 
 static void nulldrv_ReleaseDC( HWND hwnd, HDC hdc )

dlls/win32u/gdiobj.c

@@ -1200,7 +1200,6 @@ static struct unix_funcs unix_funcs =
     NtUserMapVirtualKeyEx,
     NtUserMessageCall,
     NtUserMoveWindow,
-    NtUserMsgWaitForMultipleObjectsEx,
     NtUserOpenClipboard,
     NtUserPeekMessage,
     NtUserPostMessage,

dlls/win32u/ntuser_private.h

@@ -32,7 +32,6 @@ struct hardware_msg_data;
 
 struct user_callbacks
 {
-    NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,BOOLEAN,const LARGE_INTEGER*);
     NTSTATUS (CDECL *try_finally)( NTSTATUS (CDECL *func)( void *), void *arg,
                                    void (CALLBACK *finally_func)( BOOL ));
 };

dlls/win32u/syscall.c

@@ -163,6 +163,7 @@ static void * const syscalls[] =
     NtUserKillTimer,
     NtUserLockWindowUpdate,
     NtUserMenuItemFromPoint,
+    NtUserMsgWaitForMultipleObjectsEx,
     NtUserNotifyWinEvent,
     NtUserOpenDesktop,
     NtUserOpenInputDesktop,

dlls/win32u/win32u.spec

@@ -1085,7 +1085,7 @@
 @ stub NtUserModifyUserStartupInfoFlags
 @ stub NtUserModifyWindowTouchCapability
 @ stdcall NtUserMoveWindow(long long long long long long)
-@ stdcall NtUserMsgWaitForMultipleObjectsEx(long ptr long long long)
+@ stdcall -syscall NtUserMsgWaitForMultipleObjectsEx(long ptr long long long)
 @ stub NtUserNavigateFocus
 @ stub NtUserNotifyIMEStatus
 @ stub NtUserNotifyProcessCreate

dlls/win32u/win32u_private.h

@@ -265,8 +265,6 @@ struct unix_funcs
     LRESULT  (WINAPI *pNtUserMessageCall)( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam,
                                            void *result_info, DWORD type, BOOL ansi );
     BOOL     (WINAPI *pNtUserMoveWindow)( HWND hwnd, INT x, INT y, INT cx, INT cy, BOOL repaint );
-    DWORD    (WINAPI *pNtUserMsgWaitForMultipleObjectsEx)( DWORD count, const HANDLE *handles,
-                                                           DWORD timeout, DWORD mask, DWORD flags );
     BOOL     (WINAPI *pNtUserOpenClipboard)( HWND hwnd, ULONG unk );
     BOOL     (WINAPI *pNtUserPeekMessage)( MSG *msg_out, HWND hwnd, UINT first, UINT last, UINT flags );
     BOOL     (WINAPI *pNtUserPostMessage)( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam );

dlls/win32u/wrappers.c

@@ -1110,13 +1110,6 @@ LRESULT WINAPI NtUserMessageCall( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lpa
     return unix_funcs->pNtUserMessageCall( hwnd, msg, wparam, lparam, result_info, type, ansi );
 }
 
-DWORD WINAPI NtUserMsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
-                                                DWORD timeout, DWORD mask, DWORD flags )
-{
-    if (!unix_funcs) return 0;
-    return unix_funcs->pNtUserMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
-}
-
 BOOL WINAPI NtUserOpenClipboard( HWND hwnd, ULONG unk )
 {
     if (!unix_funcs) return FALSE;

dlls/wineandroid.drv/android.h

@@ -120,8 +120,6 @@ extern NTSTATUS android_java_init( void *arg ) DECLSPEC_HIDDEN;
 extern NTSTATUS android_java_uninit( void *arg ) DECLSPEC_HIDDEN;
 extern NTSTATUS android_register_window( void *arg ) DECLSPEC_HIDDEN;
 extern PNTAPCFUNC register_window_callback;
-extern NTSTATUS (WINAPI *pNtWaitForMultipleObjects)( ULONG,const HANDLE*,BOOLEAN,
-                                                     BOOLEAN,const LARGE_INTEGER* ) DECLSPEC_HIDDEN;
 
 extern unsigned int screen_width DECLSPEC_HIDDEN;
 extern unsigned int screen_height DECLSPEC_HIDDEN;

dlls/wineandroid.drv/dllmain.c

@@ -130,7 +130,6 @@ BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
         return FALSE;
 
     params.register_window_callback = register_window_callback;
-    params.pNtWaitForMultipleObjects = NtWaitForMultipleObjects;
     if (__wine_unix_call( unix_handle, unix_init, &params )) return FALSE;
 
     callback_table = NtCurrentTeb()->Peb->KernelCallbackTable;

dlls/wineandroid.drv/init.c

@@ -563,8 +563,6 @@ jobject *p_java_object = NULL;
 unsigned short *p_java_gdt_sel = NULL;
 
 static NTSTATUS CDECL unix_call( enum android_funcs code, void *params );
-NTSTATUS (WINAPI *pNtWaitForMultipleObjects)( ULONG,const HANDLE*,BOOLEAN,
-                                              BOOLEAN,const LARGE_INTEGER* );
 
 static HRESULT android_init( void *arg )
 {
@@ -611,7 +609,6 @@ static HRESULT android_init( void *arg )
 #endif
     }
     __wine_set_user_driver( &android_drv_funcs, WINE_GDI_DRIVER_VERSION );
-    pNtWaitForMultipleObjects = params->pNtWaitForMultipleObjects;
     params->unix_call = unix_call;
     return STATUS_SUCCESS;
 }

dlls/wineandroid.drv/unixlib.h

@@ -37,7 +37,6 @@ enum android_funcs
 struct init_params
 {
     PNTAPCFUNC register_window_callback;
-    NTSTATUS (WINAPI *pNtWaitForMultipleObjects)( ULONG,const HANDLE*,BOOLEAN,BOOLEAN,const LARGE_INTEGER* );
     NTSTATUS (CDECL *unix_call)( enum android_funcs code, void *params );
 };
 

dlls/wineandroid.drv/window.c

@@ -1212,7 +1212,7 @@ NTSTATUS ANDROID_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles
         if (current_event) mask = 0;
         if (process_events( mask )) return count - 1;
     }
-    return pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
+    return NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                      !!(flags & MWMO_ALERTABLE), timeout );
 }
 

dlls/winemac.drv/dllmain.c

@@ -414,7 +414,6 @@ static BOOL process_attach(void)
         str->len = LoadStringW(macdrv_module, str->id, (WCHAR *)&str->str, 0);
     params.strings = strings;
 
-    params.pNtWaitForMultipleObjects = NtWaitForMultipleObjects;
     if (__wine_unix_call(macdrv_handle, unix_init, &params)) return FALSE;
 
     callback_table = NtCurrentTeb()->Peb->KernelCallbackTable;

dlls/winemac.drv/event.c

@@ -525,7 +525,7 @@ NTSTATUS macdrv_MsgWaitForMultipleObjectsEx(DWORD count, const HANDLE *handles,
     if (!data)
     {
         if (!count && timeout && !timeout->QuadPart) return WAIT_TIMEOUT;
-        return pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
+        return NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                          !!(flags & MWMO_ALERTABLE), timeout );
     }
 
@@ -538,7 +538,7 @@ NTSTATUS macdrv_MsgWaitForMultipleObjectsEx(DWORD count, const HANDLE *handles,
     if (process_events(data->queue, event_mask)) ret = count - 1;
     else if (count || !timeout || timeout->QuadPart)
     {
-        ret = pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
+        ret = NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                         !!(flags & MWMO_ALERTABLE), timeout );
         if (ret == count - 1) process_events(data->queue, event_mask);
     }

dlls/winemac.drv/macdrv.h

@@ -42,9 +42,6 @@ extern BOOL allow_set_gamma DECLSPEC_HIDDEN;
 extern BOOL allow_software_rendering DECLSPEC_HIDDEN;
 extern BOOL disable_window_decorations DECLSPEC_HIDDEN;
 
-extern NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,
-                                                    BOOLEAN,const LARGE_INTEGER*) DECLSPEC_HIDDEN;
-
 extern const char* debugstr_cf(CFTypeRef t) DECLSPEC_HIDDEN;
 
 static inline CGRect cgrect_from_rect(RECT rect)

dlls/winemac.drv/macdrv_main.c

@@ -69,8 +69,6 @@ int enable_app_nap = FALSE;
 
 CFDictionaryRef localized_strings;
 
-NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,
-                                             BOOLEAN,const LARGE_INTEGER*);
 
 /**************************************************************************
  *              debugstr_cf
@@ -461,7 +459,6 @@ static NTSTATUS macdrv_init(void *arg)
     init_user_driver();
     macdrv_init_display_devices(FALSE);
 
-    pNtWaitForMultipleObjects = params->pNtWaitForMultipleObjects;
     params->unix_call = unix_call;
     return STATUS_SUCCESS;
 }

dlls/winemac.drv/unixlib.h

@@ -83,7 +83,6 @@ struct localized_string
 
 struct init_params
 {
-    NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,BOOLEAN,const LARGE_INTEGER*);
     struct localized_string *strings;
     NTSTATUS (CDECL *unix_call)(enum macdrv_funcs code, void *params);
 };

dlls/winex11.drv/dllmain.c

@@ -67,7 +67,6 @@ BOOL WINAPI DllMain( HINSTANCE instance, DWORD reason, void *reserved )
     void **callback_table;
     struct init_params params =
     {
-        NtWaitForMultipleObjects,
         foreign_window_proc,
     };
 

dlls/winex11.drv/event.c

@@ -483,7 +483,7 @@ NTSTATUS X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
     if (!data)
     {
         if (!count && timeout && !timeout->QuadPart) return WAIT_TIMEOUT;
-        return pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
+        return NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                          !!(flags & MWMO_ALERTABLE), timeout );
     }
 
@@ -492,7 +492,7 @@ NTSTATUS X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
     if (process_events( data->display, filter_event, mask )) ret = count - 1;
     else if (count || !timeout || timeout->QuadPart)
     {
-        ret = pNtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
+        ret = NtWaitForMultipleObjects( count, handles, !(flags & MWMO_WAITALL),
                                         !!(flags & MWMO_ALERTABLE), timeout );
         if (ret == count - 1) process_events( data->display, filter_event, mask );
     }

dlls/winex11.drv/unixlib.h

@@ -50,7 +50,6 @@ struct create_desktop_params
 /* x11drv_init params */
 struct init_params
 {
-    NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,BOOLEAN,const LARGE_INTEGER*);
     WNDPROC foreign_window_proc;
     BOOL show_systray;
     NTSTATUS (CDECL *unix_call)( enum x11drv_funcs code, void *params );

dlls/winex11.drv/x11drv.h

@@ -446,9 +446,6 @@ extern char *process_name DECLSPEC_HIDDEN;
 extern Display *clipboard_display DECLSPEC_HIDDEN;
 extern WNDPROC client_foreign_window_proc;
 
-extern NTSTATUS (WINAPI *pNtWaitForMultipleObjects)(ULONG,const HANDLE*,BOOLEAN,
-                                                    BOOLEAN,const LARGE_INTEGER*) DECLSPEC_HIDDEN;
-
 /* atoms */
 
 enum x11drv_atoms

dlls/winex11.drv/x11drv_main.c

@@ -220,14 +220,6 @@ static const char * const atom_names[NB_XATOMS - FIRST_XATOM] =
     "text/uri-list"
 };
 
-/* We use use pointer to call NtWaitForMultipleObjects to make it go through
- * syscall dispatcher. We need that because win32u bypasses syscall thunks and
- * if we called NtWaitForMultipleObjects directly, it wouldn't be able to handle
- * user APCs. This will be removed as soon as we may use syscall interface
- * for NtUserMsgWaitForMultipleObjectsEx. */
-NTSTATUS (WINAPI *pNtWaitForMultipleObjects)( ULONG, const HANDLE *, BOOLEAN,
-                                              BOOLEAN, const LARGE_INTEGER* );
-
 static NTSTATUS CDECL unix_call( enum x11drv_funcs code, void *params );
 
 /***********************************************************************
@@ -686,7 +678,6 @@ static NTSTATUS x11drv_init( void *arg )
     if (!XInitThreads()) ERR( "XInitThreads failed, trouble ahead\n" );
     if (!(display = XOpenDisplay( NULL ))) return STATUS_UNSUCCESSFUL;
 
-    pNtWaitForMultipleObjects = params->pNtWaitForMultipleObjects;
     client_foreign_window_proc = params->foreign_window_proc;
 
     fcntl( ConnectionNumber(display), F_SETFD, 1 ); /* set close on exec flag */

dlls/wow64win/syscall.h

@@ -150,6 +150,7 @@
     SYSCALL_ENTRY( NtUserKillTimer ) \
     SYSCALL_ENTRY( NtUserLockWindowUpdate ) \
     SYSCALL_ENTRY( NtUserMenuItemFromPoint ) \
+    SYSCALL_ENTRY( NtUserMsgWaitForMultipleObjectsEx ) \
     SYSCALL_ENTRY( NtUserNotifyWinEvent ) \
     SYSCALL_ENTRY( NtUserOpenDesktop ) \
     SYSCALL_ENTRY( NtUserOpenInputDesktop ) \

dlls/wow64win/user.c

@@ -836,6 +836,27 @@ NTSTATUS WINAPI wow64_NtUserMenuItemFromPoint( UINT *args )
     return NtUserMenuItemFromPoint( hwnd, handle, x, y );
 }
 
+NTSTATUS WINAPI wow64_NtUserMsgWaitForMultipleObjectsEx( UINT *args )
+{
+    DWORD count = get_ulong( &args );
+    const ULONG *handles32 = get_ptr( &args );
+    DWORD timeout = get_ulong( &args );
+    DWORD mask = get_ulong( &args );
+    DWORD flags = get_ulong( &args );
+
+    HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+    unsigned int i;
+
+    if (count > ARRAYSIZE(handles))
+    {
+        SetLastError( ERROR_INVALID_PARAMETER );
+        return WAIT_FAILED;
+    }
+    for (i = 0; i < count; i++) handles[i] = UlongToHandle( handles32[i] );
+
+    return NtUserMsgWaitForMultipleObjectsEx( count, handles, timeout, mask, flags );
+}
+
 NTSTATUS WINAPI wow64_NtUserNotifyWinEvent( UINT *args )
 {
     DWORD event = get_ulong( &args );