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Add a resource creation signal

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This change allows to add a resource creation listener to a wl_client,
which will be notified when a new resource is created for that client.
The alternative would be to have a per wl_display listener, but i think
that resources are really client specific objects, so it makes sense
to use the wl_client as the context.

Signed-off-by: Giulio Camuffo <giulio.camuffo@kdab.com>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
[Pekka: added wl_list_remove() in TEST(new_resource).]
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Giulio Camuffo 2016-08-11 17:23:09 +02:00 • committed by Pekka Paalanen
parent 596024f728
commit c55c1d787c
3 changed files with 110 additions and 10 deletions
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33
src/wayland-server.c
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@ -81,6 +81,7 @@ struct wl_client {
struct wl_signal destroy_signal;
struct ucred ucred;
int error;
struct wl_signal resource_created_signal;
};
struct wl_display {
@ -424,6 +425,7 @@ wl_client_create(struct wl_display *display, int fd)
if (client == NULL)
return NULL;
wl_signal_init(&client->resource_created_signal);
client->display = display;
client->source = wl_event_loop_add_fd(display->loop, fd,
WL_EVENT_READABLE,
@ -729,6 +731,7 @@ wl_client_destroy(struct wl_client *client)
wl_event_source_remove(client->source);
close(wl_connection_destroy(client->connection));
wl_list_remove(&client->link);
wl_list_remove(&client->resource_created_signal.listener_list);
free(client);
}
@ -1420,6 +1423,18 @@ wl_resource_set_dispatcher(struct wl_resource *resource,
resource->destroy = destroy;
}
/** Create a new resource object
*
* \param client The client owner of the new resource.
* \param interface The interface of the new resource.
* \param version The version of the new resource.
* \param id The id of the new resource. If 0, an available id will be used.
*
* Listeners added with \a wl_client_add_resource_created_listener will be
* notified at the end of this function.
*
* \memberof wl_resource
*/
WL_EXPORT struct wl_resource *
wl_resource_create(struct wl_client *client,
const struct wl_interface *interface,
@ -1454,6 +1469,7 @@ wl_resource_create(struct wl_client *client,
return NULL;
}
wl_signal_emit(&client->resource_created_signal, resource);
return resource;
}
@ -1571,6 +1587,23 @@ wl_client_from_link(struct wl_list *link)
return container_of(link, struct wl_client, link);
}
/** Add a listener for the client's resource creation signal
*
* \param client The client object
* \param listener The listener to be added
*
* When a new resource is created for this client the listener
* will be notified, carrying the new resource as the data argument.
*
* \memberof wl_client
*/
WL_EXPORT void
wl_client_add_resource_created_listener(struct wl_client *client,
struct wl_listener *listener)
{
wl_signal_add(&client->resource_created_signal, listener);
}
/** \cond */ /* Deprecated functions below. */
uint32_t