diff options
author | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2016-07-19 15:42:10 +0900 |
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committer | Carsten Haitzler (Rasterman) <raster@rasterman.com> | 2016-07-19 15:43:22 +0900 |
commit | ac10a00acc6bacf01bfd208cc78b4eb2a6a925d8 (patch) | |
tree | 60eb140098ab49acada076a3c3d735eca4d00090 | |
parent | ad1bfac960b2ffccf4bf853b5f3b93a782167dd3 (diff) | |
download | efl-ac10a00acc6bacf01bfd208cc78b4eb2a6a925d8.tar.gz |
evas - on shutdown avoid potential invalid memory access
i don't know for sure if this fixes T4103 but in theory i think it
might given a reading of the backtrace and a guess at what might
happen, so try this fix. it doesn't hurt and can only help.
@fix
-rw-r--r-- | src/lib/evas/canvas/evas_layer.c | 48 | ||||
-rw-r--r-- | src/lib/evas/canvas/evas_object_image.c | 6 | ||||
-rw-r--r-- | src/lib/evas/canvas/evas_render.c | 3 | ||||
-rw-r--r-- | src/lib/evas/include/evas_private.h | 3 |
4 files changed, 52 insertions, 8 deletions
diff --git a/src/lib/evas/canvas/evas_layer.c b/src/lib/evas/canvas/evas_layer.c index 12c8b2fb34..b81c0e0add 100644 --- a/src/lib/evas/canvas/evas_layer.c +++ b/src/lib/evas/canvas/evas_layer.c @@ -33,19 +33,25 @@ void evas_object_release(Evas_Object *eo_obj, Evas_Object_Protected_Data *obj, int clean_layer) { if (!obj->in_layer) return; - obj->layer->objects = (Evas_Object_Protected_Data *)eina_inlist_remove(EINA_INLIST_GET(obj->layer->objects), EINA_INLIST_GET(obj)); + if (!obj->layer->walking_objects) + obj->layer->objects = (Evas_Object_Protected_Data *)eina_inlist_remove(EINA_INLIST_GET(obj->layer->objects), EINA_INLIST_GET(obj)); eo_data_unref(eo_obj, obj); - obj->layer->usage--; - if (clean_layer) + if (!obj->layer->walking_objects) { - if (obj->layer->usage <= 0) + obj->layer->usage--; + if (clean_layer) { - evas_layer_del(obj->layer); - _evas_layer_free(obj->layer); + if (obj->layer->usage <= 0) + { + evas_layer_del(obj->layer); + _evas_layer_free(obj->layer); + } } + obj->layer = NULL; + obj->in_layer = 0; } - obj->layer = NULL; - obj->in_layer = 0; + else + obj->layer->removes = eina_list_append(obj->layer->removes, obj); } Evas_Layer * @@ -67,15 +73,41 @@ _evas_layer_free(Evas_Layer *lay) } void +_evas_layer_flush_removes(Evas_Layer *lay) +{ + if (lay->walking_objects) return; + while (lay->removes) + { + Evas_Object_Protected_Data *obj = lay->removes->data; + + lay->objects = (Evas_Object_Protected_Data *) + eina_inlist_remove(EINA_INLIST_GET(lay->objects), + EINA_INLIST_GET(obj)); + lay->removes = eina_list_remove_list(lay->removes, lay->removes); + obj->layer = NULL; + obj->in_layer = 0; + lay->usage--; + } + if (lay->usage <= 0) + { + evas_layer_del(lay); + _evas_layer_free(lay); + } +} + +void evas_layer_pre_free(Evas_Layer *lay) { Evas_Object_Protected_Data *obj; + lay->walking_objects++; EINA_INLIST_FOREACH(lay->objects, obj) { if ((!obj->smart.parent) && (!obj->delete_me)) evas_object_del(obj->object); } + lay->walking_objects--; + _evas_layer_flush_removes(lay); } void diff --git a/src/lib/evas/canvas/evas_object_image.c b/src/lib/evas/canvas/evas_object_image.c index 8ba756d68c..ad7810a279 100644 --- a/src/lib/evas/canvas/evas_object_image.c +++ b/src/lib/evas/canvas/evas_object_image.c @@ -1134,6 +1134,7 @@ _evas_canvas_image_cache_reload(Eo *eo_e, Evas_Public_Data *e) { Evas_Object_Protected_Data *obj; + layer->walking_objects++; EINA_INLIST_FOREACH(layer->objects, obj) { if (eo_isa(obj->object, MY_CLASS)) @@ -1142,12 +1143,15 @@ _evas_canvas_image_cache_reload(Eo *eo_e, Evas_Public_Data *e) evas_object_inform_call_image_unloaded(obj->object); } } + layer->walking_objects--; + _evas_layer_flush_removes(layer); } evas_image_cache_flush(eo_e); EINA_INLIST_FOREACH(e->layers, layer) { Evas_Object_Protected_Data *obj; + layer->walking_objects++; EINA_INLIST_FOREACH(layer->objects, obj) { if (eo_isa(obj->object, MY_CLASS)) @@ -1158,6 +1162,8 @@ _evas_canvas_image_cache_reload(Eo *eo_e, Evas_Public_Data *e) evas_object_change(obj->object, obj); } } + layer->walking_objects--; + _evas_layer_flush_removes(layer); } evas_image_cache_flush(eo_e); } diff --git a/src/lib/evas/canvas/evas_render.c b/src/lib/evas/canvas/evas_render.c index cf34a82c8e..5aa5d38aca 100644 --- a/src/lib/evas/canvas/evas_render.c +++ b/src/lib/evas/canvas/evas_render.c @@ -3300,6 +3300,7 @@ _evas_canvas_render_dump(Eo *eo_e, Evas_Public_Data *e) { Evas_Object_Protected_Data *obj; + lay->walking_objects++; EINA_INLIST_FOREACH(lay->objects, obj) { if (obj->proxy->surface) @@ -3324,6 +3325,8 @@ _evas_canvas_render_dump(Eo *eo_e, Evas_Public_Data *e) evas_object_inform_call_image_unloaded(obj->object); _evas_render_dump_map_surfaces(obj->object); } + lay->walking_objects--; + _evas_layer_flush_removes(lay); } if ((e->engine.func) && (e->engine.func->output_dump) && (e->engine.data.output)) diff --git a/src/lib/evas/include/evas_private.h b/src/lib/evas/include/evas_private.h index 684edfc20a..474a66ebba 100644 --- a/src/lib/evas/include/evas_private.h +++ b/src/lib/evas/include/evas_private.h @@ -924,7 +924,9 @@ struct _Evas_Layer Evas_Public_Data *evas; void *engine_data; + Eina_List *removes; int usage; + int walking_objects; unsigned char delete_me : 1; }; @@ -1532,6 +1534,7 @@ void evas_rects_return_difference_rects(Eina_Array *rects, int x, int y, int w, void evas_object_clip_dirty(Evas_Object *obj, Evas_Object_Protected_Data *pd); void evas_object_recalc_clippees(Evas_Object_Protected_Data *pd); Evas_Layer *evas_layer_new(Evas *e); +void _evas_layer_flush_removes(Evas_Layer *lay); void evas_layer_pre_free(Evas_Layer *lay); void evas_layer_free_objects(Evas_Layer *lay); void evas_layer_clean(Evas *e); |