Add client-node module

pipewire/modules/module-client-node.c

@@ -0,0 +1,103 @@
+/* PipeWire
+ * Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <string.h>
+#include <stdio.h>
+#include <errno.h>
+#include <dlfcn.h>
+
+#include "config.h"
+
+#include "pipewire/client/interfaces.h"
+#include "pipewire/server/core.h"
+#include "pipewire/server/module.h"
+#include "pipewire/server/client-node.h"
+
+#define AUDIOMIXER_LIB "build/spa/plugins/audiomixer/libspa-audiomixer.so"
+
+struct impl {
+	struct pw_node_factory this;
+	struct pw_properties *properties;
+};
+
+static struct pw_node *create_node(struct pw_node_factory *factory,
+				   struct pw_client *client,
+				   const char *name,
+				   struct pw_properties *properties,
+				   uint32_t new_id)
+{
+	struct pw_client_node *node;
+	int res;
+	int readfd, writefd;
+
+	node = pw_client_node_new(client, new_id, name, properties);
+	if (node == NULL)
+		goto no_mem;
+
+	if ((res = pw_client_node_get_fds(node, &readfd, &writefd)) < 0) {
+		pw_core_notify_error(client->core_resource,
+				     client->core_resource->id, SPA_RESULT_ERROR, "can't get data fds");
+		return NULL;
+	}
+	pw_client_node_notify_done(node->resource, readfd, writefd);
+
+	return node->node;
+
+      no_mem:
+	pw_log_error("can't create node");
+	pw_core_notify_error(client->core_resource,
+			     client->core_resource->id, SPA_RESULT_NO_MEMORY, "no memory");
+	return NULL;
+}
+
+static struct impl *module_new(struct pw_core *core, struct pw_properties *properties)
+{
+	struct impl *impl;
+
+	impl = calloc(1, sizeof(struct impl));
+	pw_log_debug("module %p: new", impl);
+
+	impl->properties = properties;
+
+	impl->this.core = core;
+	impl->this.name = "client-node";
+        pw_signal_init(&impl->this.destroy_signal);
+	impl->this.create_node = create_node;
+
+	spa_list_insert(core->node_factory_list.prev, &impl->this.link);
+
+        pw_core_add_global(core, NULL, core->type.node_factory, 0, impl, NULL, &impl->this.global);
+
+	return impl;
+}
+
+#if 0
+static void module_destroy(struct impl *impl)
+{
+	pw_log_debug("module %p: destroy", impl);
+
+	free(impl);
+}
+#endif
+
+bool pipewire__module_init(struct pw_module *module, const char *args)
+{
+	module_new(module->core, NULL);
+	return true;
+}