shairport-sync-mpris-test-client.c

#include "mpris-interface.h"
#include "mpris-player-interface.h"
#include <stdio.h>
#include <unistd.h>

GMainLoop *loop;

void on_properties_changed(GDBusProxy *proxy, GVariant *changed_properties,
                           const gchar *const *invalidated_properties, gpointer user_data) {
  /* Note that we are guaranteed that changed_properties and
   * invalidated_properties are never NULL
   */

  if (g_variant_n_children(changed_properties) > 0) {
    GVariantIter *iter;
    const gchar *key;
    GVariant *value;

    g_print(" *** Properties Changed:\n");
    g_variant_get(changed_properties, "a{sv}", &iter);
    while (g_variant_iter_loop(iter, "{&sv}", &key, &value)) {
      gchar *value_str;
      value_str = g_variant_print(value, TRUE);
      g_print("      %s -> %s\n", key, value_str);
      g_free(value_str);
    }
    g_variant_iter_free(iter);
  }

  if (g_strv_length((GStrv)invalidated_properties) > 0) {
    guint n;
    g_print(" *** Properties Invalidated:\n");
    for (n = 0; invalidated_properties[n] != NULL; n++) {
      const gchar *key = invalidated_properties[n];
      g_print("      %s\n", key);
    }
  }
}

pthread_t dbus_thread;
void *dbus_thread_func(void *arg) {

  loop = g_main_loop_new(NULL, FALSE);

  g_main_loop_run(loop);

  //  dbus_service_main(); // let it run inside a thread
  return NULL; // this is just to quieten a compiler warning.
}

int main(void) {

  pthread_create(&dbus_thread, NULL, &dbus_thread_func, NULL);

  MediaPlayer2 *proxy;
  MediaPlayer2Player *proxy2;

  GError *error = NULL;

  /*
    proxy = media_player2_proxy_new_for_bus_sync(G_BUS_TYPE_SYSTEM, G_DBUS_PROXY_FLAGS_NONE,
                                                  "org.mpris.MediaPlayer2.ShairportSync",
                                                  "/org/mpris/MediaPlayer2", NULL, &error);
    g_signal_connect(proxy, "g-properties-changed", G_CALLBACK(on_properties_changed), NULL);
  */

  proxy2 = media_player2_player_proxy_new_for_bus_sync(G_BUS_TYPE_SESSION, G_DBUS_PROXY_FLAGS_NONE,
                                                       "org.mpris.MediaPlayer2.ShairportSync",
                                                       "/org/mpris/MediaPlayer2", NULL, &error);
  g_signal_connect(proxy2, "g-properties-changed", G_CALLBACK(on_properties_changed), NULL);
  // sleep(120);
  // g_main_loop_quit(loop);
  pthread_join(dbus_thread, NULL);
  printf("exiting program.\n");

  //  g_object_unref(proxy);
  g_object_unref(proxy2);

  return 0;
}