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interface: add an interface struct

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The interface struct has the type,version and methods of the
interface.
Make spa interfaces extend from spa_interface and make a
separate structure for the methods.
Pass a generic void* as the first argument of methods, like
we don in PipeWire.
Bundle the methods + implementation in a versioned inteface
and use that to invoke methods. This way we can do version
checks on the methods.
Make resource and proxy interfaces that we can can call. We
can then make the core interfaces independent on proxy/resource and
hide them in the lower layers.
Add add_listener method to methods of core interfaces, just
like SPA.
This commit is contained in:
Wim Taymans 2019-05-20 16:11:23 +02:00
parent eb6481efb3
commit ff946e3d4b
85 changed files with 3051 additions and 3000 deletions
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15
spa/plugins/support/dbus.c
View file

@ -280,10 +280,10 @@ static const struct spa_dbus_connection impl_connection = {
};
static struct spa_dbus_connection *
impl_get_connection(struct spa_dbus *dbus,
impl_get_connection(void *object,
enum spa_dbus_type type)
{
struct impl *impl = SPA_CONTAINER_OF(dbus, struct impl, dbus);
struct impl *impl = object;
struct connection *conn;
DBusError error;
@ -318,9 +318,9 @@ impl_get_connection(struct spa_dbus *dbus,
return NULL;
}
static const struct spa_dbus impl_dbus = {
SPA_VERSION_DBUS,
impl_get_connection,
static const struct spa_dbus_methods impl_dbus = {
SPA_VERSION_DBUS_METHODS,
.get_connection = impl_get_connection,
};
static int impl_get_interface(struct spa_handle *handle, uint32_t type, void **interface)
@ -372,7 +372,10 @@ impl_init(const struct spa_handle_factory *factory,
this = (struct impl *) handle;
spa_list_init(&this->connection_list);
this->dbus = impl_dbus;
this->dbus.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_DBus,
SPA_VERSION_DBUS,
&impl_dbus, this);
for (i = 0; i < n_support; i++) {
if (support[i].type == SPA_TYPE_INTERFACE_Log)