session-manager: implement export functions for session-manager objects

src/modules/meson.build

@@ -146,6 +146,7 @@ pipewire_module_session_manager = shared_library('pipewire-module-session-manage
     'module-session-manager/client-session/endpoint-link.c',
     'module-session-manager/client-session/session.c',
     'module-session-manager/protocol-native.c',
+    'module-session-manager/proxy-session-manager.c',
   ],
   c_args : pipewire_module_c_args,
   include_directories : [configinc, spa_inc],

src/modules/module-session-manager/proxy-session-manager.c

@@ -0,0 +1,188 @@
+/* PipeWire
+ *
+ * Copyright © 2020 Collabora Ltd.
+ *   @author George Kiagiadakis <george.kiagiadakis@collabora.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include "pipewire/pipewire.h"
+#include "extensions/session-manager.h"
+
+struct object_data {
+	struct spa_hook object_listener;
+	struct spa_hook object_methods;
+	struct spa_hook proxy_listener;
+};
+
+static void proxy_object_destroy(void *_data)
+{
+	struct object_data *data = _data;
+	spa_hook_remove(&data->object_listener);
+}
+
+static const struct pw_proxy_events proxy_events = {
+	PW_VERSION_PROXY_EVENTS,
+	.destroy = proxy_object_destroy,
+};
+
+struct pw_proxy *pw_core_endpoint_export(struct pw_core *core,
+		const char *type, const struct spa_dict *props, void *object,
+		size_t user_data_size)
+{
+	struct pw_endpoint *endpoint = object;
+	struct spa_interface *remote_iface, *local_iface;
+	struct pw_proxy *proxy;
+	struct object_data *data;
+
+	proxy = pw_core_create_object(core,
+				    "endpoint",
+				    PW_TYPE_INTERFACE_Endpoint,
+				    PW_VERSION_ENDPOINT,
+				    props,
+				    user_data_size + sizeof(struct object_data));
+        if (proxy == NULL)
+		return NULL;
+
+	data = pw_proxy_get_user_data(proxy);
+	data = SPA_MEMBER(data, user_data_size, struct object_data);
+
+	remote_iface = (struct spa_interface*)proxy;
+	local_iface = (struct spa_interface*)endpoint;
+
+	pw_proxy_install_marshal(proxy, true);
+
+	pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data);
+
+	pw_proxy_add_object_listener(proxy, &data->object_methods,
+			local_iface->cb.funcs, local_iface->cb.data);
+	pw_endpoint_add_listener(endpoint, &data->object_listener,
+			remote_iface->cb.funcs, remote_iface->cb.data);
+
+	return proxy;
+}
+
+struct pw_proxy *pw_core_endpoint_stream_export(struct pw_core *core,
+		const char *type, const struct spa_dict *props, void *object,
+		size_t user_data_size)
+{
+	struct pw_endpoint_stream *endpoint_stream = object;
+	struct spa_interface *remote_iface, *local_iface;
+	struct pw_proxy *proxy;
+	struct object_data *data;
+
+	proxy = pw_core_create_object(core,
+				    "endpoint-stream",
+				    PW_TYPE_INTERFACE_EndpointStream,
+				    PW_VERSION_ENDPOINT_STREAM,
+				    props,
+				    user_data_size + sizeof(struct object_data));
+        if (proxy == NULL)
+		return NULL;
+
+	data = pw_proxy_get_user_data(proxy);
+	data = SPA_MEMBER(data, user_data_size, struct object_data);
+
+	remote_iface = (struct spa_interface*)proxy;
+	local_iface = (struct spa_interface*)endpoint_stream;
+
+	pw_proxy_install_marshal(proxy, true);
+
+	pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data);
+
+	pw_proxy_add_object_listener(proxy, &data->object_methods,
+			local_iface->cb.funcs, local_iface->cb.data);
+	pw_endpoint_stream_add_listener(endpoint_stream, &data->object_listener,
+			remote_iface->cb.funcs, remote_iface->cb.data);
+
+	return proxy;
+}
+
+struct pw_proxy *pw_core_endpoint_link_export(struct pw_core *core,
+		const char *type, const struct spa_dict *props, void *object,
+		size_t user_data_size)
+{
+	struct pw_endpoint_link *endpoint_link = object;
+	struct spa_interface *remote_iface, *local_iface;
+	struct pw_proxy *proxy;
+	struct object_data *data;
+
+	proxy = pw_core_create_object(core,
+				    "endpoint-link",
+				    PW_TYPE_INTERFACE_EndpointLink,
+				    PW_VERSION_ENDPOINT_LINK,
+				    props,
+				    user_data_size + sizeof(struct object_data));
+        if (proxy == NULL)
+		return NULL;
+
+	data = pw_proxy_get_user_data(proxy);
+	data = SPA_MEMBER(data, user_data_size, struct object_data);
+
+	remote_iface = (struct spa_interface*)proxy;
+	local_iface = (struct spa_interface*)endpoint_link;
+
+	pw_proxy_install_marshal(proxy, true);
+
+	pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data);
+
+	pw_proxy_add_object_listener(proxy, &data->object_methods,
+			local_iface->cb.funcs, local_iface->cb.data);
+	pw_endpoint_link_add_listener(endpoint_link, &data->object_listener,
+			remote_iface->cb.funcs, remote_iface->cb.data);
+
+	return proxy;
+}
+
+struct pw_proxy *pw_core_session_export(struct pw_core *core,
+		const char *type, const struct spa_dict *props, void *object,
+		size_t user_data_size)
+{
+	struct pw_session *session = object;
+	struct spa_interface *remote_iface, *local_iface;
+	struct pw_proxy *proxy;
+	struct object_data *data;
+
+	proxy = pw_core_create_object(core,
+				    "session",
+				    PW_TYPE_INTERFACE_Session,
+				    PW_VERSION_SESSION,
+				    props,
+				    user_data_size + sizeof(struct object_data));
+        if (proxy == NULL)
+		return NULL;
+
+	data = pw_proxy_get_user_data(proxy);
+	data = SPA_MEMBER(data, user_data_size, struct object_data);
+
+	remote_iface = (struct spa_interface*)proxy;
+	local_iface = (struct spa_interface*)session;
+
+	pw_proxy_install_marshal(proxy, true);
+
+	pw_proxy_add_listener(proxy, &data->proxy_listener, &proxy_events, data);
+
+	pw_proxy_add_object_listener(proxy, &data->object_methods,
+			local_iface->cb.funcs, local_iface->cb.data);
+	pw_session_add_listener(session, &data->object_listener,
+			remote_iface->cb.funcs, remote_iface->cb.data);
+
+	return proxy;
+}