PW Enumeration: Show props

Signed-off-by: Vasiliy Doylov <nekocwd@mainlining.org>

src/main.c

@@ -1,54 +1,51 @@
-/* main.c
- *
- * Copyright 2025 Unknown
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- *
- * SPDX-License-Identifier: GPL-3.0-or-later
- */
+#include "spa/utils/dict.h"
+#include <pipewire/pipewire.h>
+#include <stdint.h>
 
-#include "config.h"
-
-#include <glib.h>
-#include <stdlib.h>
-
-gint
-main (gint   argc,
-      gchar *argv[])
-{
-	g_autoptr(GOptionContext) context = NULL;
-	g_autoptr(GError) error = NULL;
-	gboolean version = FALSE;
-	GOptionEntry main_entries[] = {
-		{ "version", 0, 0, G_OPTION_ARG_NONE, &version, "Show program version" },
-		{ NULL }
-	};
-
-	context = g_option_context_new ("- my command line tool");
-	g_option_context_add_main_entries (context, main_entries, NULL);
-
-	if (!g_option_context_parse (context, &argc, &argv, &error))
-	{
-		g_printerr ("%s\n", error->message);
-		return EXIT_FAILURE;
-	}
-
-	if (version)
-	{
-		g_printerr ("%s\n", PACKAGE_VERSION);
-		return EXIT_SUCCESS;
-	}
-
-	return EXIT_SUCCESS;
+static void registry_event_global(void *data, uint32_t id, uint32_t permissions,
+                                  const char *type, uint32_t version,
+                                  const struct spa_dict *props) {
+  printf("object: id:%u type:%s/%d\n", id, type, version);
+  for (uint32_t i = 0; i < props->n_items; i++) {
+    struct spa_dict_item prop = props->items[i];
+    printf("\t%s -> %s\n", prop.key, prop.value);
+  }
 }
+
+static const struct pw_registry_events registry_events = {
+    PW_VERSION_REGISTRY_EVENTS,
+    .global = registry_event_global,
+};
+
+int main(int argc, char *argv[]) {
+  struct pw_main_loop *loop;
+  struct pw_context *context;
+  struct pw_core *core;
+  struct pw_registry *registry;
+  struct spa_hook registry_listener;
+
+  pw_init(&argc, &argv);
+
+  loop = pw_main_loop_new(NULL /* properties */);
+  context = pw_context_new(pw_main_loop_get_loop(loop), NULL /* properties */,
+                           0 /* user_data size */);
+
+  core = pw_context_connect(context, NULL /* properties */,
+                            0 /* user_data size */);
+
+  registry =
+      pw_core_get_registry(core, PW_VERSION_REGISTRY, 0 /* user_data size */);
+
+  spa_zero(registry_listener);
+  pw_registry_add_listener(registry, &registry_listener, &registry_events,
+                           NULL);
+
+  pw_main_loop_run(loop);
+
+  pw_proxy_destroy((struct pw_proxy *)registry);
+  pw_core_disconnect(core);
+  pw_context_destroy(context);
+  pw_main_loop_destroy(loop);
+
+  return 0;
+}

src/meson.build

@@ -4,6 +4,7 @@ ctest_sources = [
 
 ctest_deps = [
   dependency('glib-2.0'),
+  dependency('libpipewire-0.3'),
 ]
 
 executable('ctest', ctest_sources,