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Fix the memory corruption in a better way.

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Thu Mar 30 17:01:12 2006  Søren Sandmann  <sandmann@redhat.com>

	* src/compositor.c (struct MetaCompositor): Fix the memory
	corruption in a better way.
This commit is contained in:
Søren Sandmann 2006-03-30 22:01:45 +00:00 committed by Søren Sandmann Pedersen
parent aaafd14124
commit eb102ab37f
2 changed files with 52 additions and 22 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Thu Mar 30 17:01:12 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (struct MetaCompositor): Fix the memory
corruption in a better way.
Thu Mar 30 16:38:35 2006 Søren Sandmann <sandmann@redhat.com> Thu Mar 30 16:38:35 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (meta_compositor_begin_move): Fix an illegal write. * src/compositor.c (meta_compositor_begin_move): Fix an illegal write.

69
src/compositor.c
View File

@ -76,8 +76,6 @@ struct MetaCompositor
guint debug_updates : 1; guint debug_updates : 1;
GList *ignored_damage; GList *ignored_damage;
MoveInfo *move_info;
}; };
#endif /* HAVE_COMPOSITE_EXTENSIONS */ #endif /* HAVE_COMPOSITE_EXTENSIONS */
@ -1270,6 +1268,8 @@ get_patch_points (Model *model,
} }
} }
static GList *move_infos;
static gboolean static gboolean
wobble (gpointer data) wobble (gpointer data)
{ {
@ -1286,9 +1286,12 @@ wobble (gpointer data)
{ {
if (!info->window_destroyed) if (!info->window_destroyed)
meta_screen_info_unset_patch (minfo, get_xid (info->window)); meta_screen_info_unset_patch (minfo, get_xid (info->window));
move_infos = g_list_remove (move_infos, info);
g_free (info); g_free (info);
info->compositor->move_info = NULL; #if 0
g_print ("stop wobb\n"); g_print ("stop wobb\n");
#endif
return FALSE; return FALSE;
} }
else else
@ -1339,15 +1342,18 @@ meta_compositor_begin_move (MetaCompositor *compositor,
{ {
#ifdef HAVE_COMPOSITE_EXTENSIONS #ifdef HAVE_COMPOSITE_EXTENSIONS
MetaRectangle rect; MetaRectangle rect;
MoveInfo *move_info;
g_print ("begin move\n"); g_print ("begin move\n");
compositor->move_info = g_new0 (MoveInfo, 1); move_info = g_new0 (MoveInfo, 1);
move_infos = g_list_prepend (move_infos, move_info);
compositor->move_info->compositor = compositor; move_info->compositor = compositor;
compositor->move_info->last_time = 0.0; move_info->last_time = 0.0;
compositor->move_info->timer = g_timer_new (); move_info->timer = g_timer_new ();
compositor->move_info->window_destroyed = FALSE; move_info->window_destroyed = FALSE;
compute_window_rect (window, &rect); compute_window_rect (window, &rect);
@ -1358,23 +1364,43 @@ meta_compositor_begin_move (MetaCompositor *compositor,
g_print ("grab: %d %d\n", grab_x, grab_y); g_print ("grab: %d %d\n", grab_x, grab_y);
#endif #endif
compositor->move_info->model = model_new (&rect, TRUE); move_info->model = model_new (&rect, TRUE);
compositor->move_info->window = window; move_info->window = window;
compositor->move_info->screen = window->screen; move_info->screen = window->screen;
model_begin_move (compositor->move_info->model, grab_x, grab_y); model_begin_move (move_info->model, grab_x, grab_y);
g_idle_add (wobble, compositor->move_info); g_idle_add (wobble, move_info);
#endif #endif
} }
#ifdef HAVE_COMPOSITE_EXTENSIONS
static MoveInfo *
find_info (MetaWindow *window)
{
GList *list;
for (list = move_infos; list != NULL; list = list->next)
{
MoveInfo *info = list->data;
if (info->window == window)
return info;
}
return NULL;
}
#endif
void void
meta_compositor_update_move (MetaCompositor *compositor, meta_compositor_update_move (MetaCompositor *compositor,
MetaWindow *window, MetaWindow *window,
int x, int y) int x, int y)
{ {
#ifdef HAVE_COMPOSITE_EXTENSIONS #ifdef HAVE_COMPOSITE_EXTENSIONS
model_update_move (compositor->move_info->model, x, y); MoveInfo *move_info = find_info (window);
model_update_move (move_info->model, x, y);
#endif #endif
} }
@ -1383,7 +1409,9 @@ meta_compositor_end_move (MetaCompositor *compositor,
MetaWindow *window) MetaWindow *window)
{ {
#ifdef HAVE_COMPOSITE_EXTENSIONS #ifdef HAVE_COMPOSITE_EXTENSIONS
compositor->move_info->finished = TRUE; MoveInfo *info = find_info (window);
info->finished = TRUE;
#endif #endif
} }
@ -1393,12 +1421,9 @@ meta_compositor_free_window (MetaCompositor *compositor,
MetaWindow *window) MetaWindow *window)
{ {
#ifdef HAVE_COMPOSITE_EXTENSIONS #ifdef HAVE_COMPOSITE_EXTENSIONS
g_print ("freeing\n"); MoveInfo *info = find_info (window);
if (compositor->move_info)
{ if (info)
g_print ("setting moveinfo to destroyed\n"); info->window_destroyed = TRUE;
compositor->move_info->window_destroyed = TRUE;
compositor->move_info = NULL;
}
#endif #endif
} }