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client: Add wl_proxy_unref helper

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Rather than open-coded decrement-and-maybe-free, introduce a
wl_proxy_unref helper to do this for us. This will come in useful for
future patches, where we may also have to free a zombie object.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Derek Foreman <derekf@osg.samsung.com>
Cc: Jonas Ådahl <jadahl@gmail.com>
This commit is contained in:
Daniel Stone 2017-12-28 15:50:06 +00:00
parent b39d893397
commit 430c7820c3
1 changed files with 17 additions and 20 deletions
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37
src/wayland-client.c
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@ -222,6 +222,19 @@ wl_event_queue_init(struct wl_event_queue *queue, struct wl_display *display)
queue->display = display;
}
static void
wl_proxy_unref(struct wl_proxy *proxy)
{
assert(proxy->refcount > 0);
if (--proxy->refcount > 0)
return;
/* If we get here, the client must have explicitly requested
* deletion. */
assert(proxy->flags & WL_PROXY_FLAG_DESTROYED);
free(proxy);
}
static void
decrease_closure_args_refcount(struct wl_closure *closure)
{
@ -241,10 +254,7 @@ decrease_closure_args_refcount(struct wl_closure *closure)
if (proxy) {
if (proxy->flags & WL_PROXY_FLAG_DESTROYED)
closure->args[i].o = NULL;
proxy->refcount--;
if (!proxy->refcount)
free(proxy);
wl_proxy_unref(proxy);
}
break;
default:
@ -257,20 +267,13 @@ static void
wl_event_queue_release(struct wl_event_queue *queue)
{
struct wl_closure *closure;
struct wl_proxy *proxy;
while (!wl_list_empty(&queue->event_list)) {
closure = container_of(queue->event_list.next,
struct wl_closure, link);
wl_list_remove(&closure->link);
decrease_closure_args_refcount(closure);
proxy = closure->proxy;
proxy->refcount--;
if (!proxy->refcount)
free(proxy);
wl_proxy_unref(closure->proxy);
wl_closure_destroy(closure);
}
}
@ -416,9 +419,7 @@ proxy_destroy(struct wl_proxy *proxy)
proxy->flags |= WL_PROXY_FLAG_DESTROYED;
proxy->refcount--;
if (!proxy->refcount)
free(proxy);
wl_proxy_unref(proxy);
}
/** Destroy a proxy object
@ -1305,11 +1306,7 @@ dispatch_event(struct wl_display *display, struct wl_event_queue *queue)
decrease_closure_args_refcount(closure);
proxy = closure->proxy;
proxy_destroyed = !!(proxy->flags & WL_PROXY_FLAG_DESTROYED);
proxy->refcount--;
if (!proxy->refcount)
free(proxy);
wl_proxy_unref(proxy);
if (proxy_destroyed) {
wl_closure_destroy(closure);
return;