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media-session: when resolving duplicate objects, bind a proxy if missing

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When duplicate objects are created, the new object has missed its
registry_global event, and is missing its proxy.

In this case, bind a proxy for the new object.
This commit is contained in:
Pauli Virtanen 2021-02-13 19:33:52 +02:00 • committed by Wim Taymans
parent 791a38f3fa
commit 77e4fdb1e4
1 changed files with 31 additions and 2 deletions
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33
src/examples/media-session/media-session.c
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@ -188,7 +188,7 @@ struct object_info {
void (*destroy) (void *object);
};
static void remove_object_and_destroy_if_owned(struct impl *impl, struct sm_object *obj);
static void resolve_duplicate_object(struct impl *impl, struct sm_object *new, struct sm_object *old);
static void add_object(struct impl *impl, struct sm_object *obj, uint32_t id)
{
@ -216,7 +216,7 @@ static void add_object(struct impl *impl, struct sm_object *obj, uint32_t id)
spa_assert(!obj->owned_by_registry);
spa_assert(old_obj->owned_by_registry);
remove_object_and_destroy_if_owned(impl, old_obj);
resolve_duplicate_object(impl, obj, old_obj);
}
while (obj->id > size)
@ -1275,6 +1275,35 @@ update_object(struct impl *impl, const struct object_info *info,
return 0;
}
static void
resolve_duplicate_object(struct impl *impl, struct sm_object *obj, struct sm_object *old)
{
const struct object_info *info;
remove_object_and_destroy_if_owned(impl, old);
if (obj->proxy != NULL)
return;
info = get_object_info(impl, obj->type);
if (info == NULL)
return;
/* Obtain proxy for the new object */
obj->proxy = pw_registry_bind(impl->registry,
obj->id, info->type, info->version, 0);
if (obj->proxy == NULL)
return;
obj->type = info->type;
pw_proxy_add_listener(obj->proxy, &obj->proxy_listener, &proxy_events, obj);
if (info->events)
pw_proxy_add_object_listener(obj->proxy, &obj->object_listener, info->events, obj);
SPA_FLAG_UPDATE(obj->mask, SM_OBJECT_CHANGE_MASK_LISTENER, info->events != NULL);
}
static void
registry_global(void *data, uint32_t id,
uint32_t permissions, const char *type, uint32_t version,