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-rw-r--r--plugins/common/daemon-skeleton.h264
1 files changed, 264 insertions, 0 deletions
diff --git a/plugins/common/daemon-skeleton.h b/plugins/common/daemon-skeleton.h
new file mode 100644
index 0000000..40b7f14
--- /dev/null
+++ b/plugins/common/daemon-skeleton.h
@@ -0,0 +1,264 @@
+/**
+ * Create a gnome-settings-daemon helper easily
+ *
+ * #define NEW gsd_media_keys_manager_new
+ * #define START gsd_media_keys_manager_start
+ * #define MANAGER GsdMediaKeysManager
+ * #include "gsd-media-keys-manager.h"
+ *
+ * #include "daemon-skeleton.h"
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <locale.h>
+
+#include <glib-unix.h>
+#include <glib/gi18n.h>
+
+#include "gnome-settings-bus.h"
+
+#ifndef PLUGIN_NAME
+#error Include PLUGIN_CFLAGS in the daemon s CFLAGS
+#endif /* !PLUGIN_NAME */
+
+#ifndef PLUGIN_DBUS_NAME
+#error Include PLUGIN_DBUS_NAME in the daemon s CFLAGS
+#endif /* !PLUGIN_DBUS_NAME */
+
+#define GNOME_SESSION_DBUS_NAME "org.gnome.SessionManager"
+#define GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE "org.gnome.SessionManager.ClientPrivate"
+
+static MANAGER *manager = NULL;
+static int timeout = -1;
+static char *dummy_name = NULL;
+static gboolean verbose = FALSE;
+
+static GOptionEntry entries[] = {
+ { "exit-time", 0, 0, G_OPTION_ARG_INT, &timeout, "Exit after n seconds time", NULL },
+ { "dummy-name", 0, 0, G_OPTION_ARG_STRING, &dummy_name, "Name when using the dummy daemon", NULL },
+ { "verbose", 'v', 0, G_OPTION_ARG_NONE, &verbose, "Verbose", NULL },
+ {NULL}
+};
+
+static void
+respond_to_end_session (GDBusProxy *proxy)
+{
+ /* we must answer with "EndSessionResponse" */
+ g_dbus_proxy_call (proxy, "EndSessionResponse",
+ g_variant_new ("(bs)", TRUE, ""),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, NULL, NULL, NULL);
+}
+
+static void
+do_stop (GMainLoop *loop)
+{
+ g_main_loop_quit (loop);
+}
+
+static void
+client_proxy_signal_cb (GDBusProxy *proxy,
+ gchar *sender_name,
+ gchar *signal_name,
+ GVariant *parameters,
+ gpointer user_data)
+{
+ if (g_strcmp0 (signal_name, "QueryEndSession") == 0) {
+ g_debug ("Got QueryEndSession signal");
+ respond_to_end_session (proxy);
+ } else if (g_strcmp0 (signal_name, "EndSession") == 0) {
+ g_debug ("Got EndSession signal");
+ respond_to_end_session (proxy);
+ } else if (g_strcmp0 (signal_name, "Stop") == 0) {
+ g_debug ("Got Stop signal");
+ do_stop (user_data);
+ }
+}
+
+static void
+on_client_registered (GObject *source_object,
+ GAsyncResult *res,
+ gpointer user_data)
+{
+ GVariant *variant;
+ GMainLoop *loop = user_data;
+ GDBusProxy *client_proxy;
+ GError *error = NULL;
+ gchar *object_path = NULL;
+
+ variant = g_dbus_proxy_call_finish (G_DBUS_PROXY (source_object), res, &error);
+ if (!variant) {
+ g_warning ("Unable to register client: %s", error->message);
+ g_error_free (error);
+ return;
+ }
+
+ g_variant_get (variant, "(o)", &object_path);
+
+ g_debug ("Registered client at path %s", object_path);
+
+ client_proxy = g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION, 0, NULL,
+ GNOME_SESSION_DBUS_NAME,
+ object_path,
+ GNOME_SESSION_CLIENT_PRIVATE_DBUS_INTERFACE,
+ NULL,
+ &error);
+ if (!client_proxy) {
+ g_warning ("Unable to get the session client proxy: %s", error->message);
+ g_error_free (error);
+ return;
+ }
+
+ g_signal_connect (client_proxy, "g-signal",
+ G_CALLBACK (client_proxy_signal_cb), loop);
+
+ g_free (object_path);
+ g_variant_unref (variant);
+}
+
+static void
+register_with_gnome_session (GMainLoop *loop)
+{
+ GDBusProxy *proxy;
+ const char *startup_id;
+
+ proxy = G_DBUS_PROXY (gnome_settings_bus_get_session_proxy ());
+ startup_id = g_getenv ("DESKTOP_AUTOSTART_ID");
+ g_dbus_proxy_call (proxy,
+ "RegisterClient",
+ g_variant_new ("(ss)", dummy_name ? dummy_name : PLUGIN_NAME, startup_id ? startup_id : ""),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1,
+ NULL,
+ (GAsyncReadyCallback) on_client_registered,
+ loop);
+
+ /* DESKTOP_AUTOSTART_ID must not leak into child processes, because
+ * it can't be reused. Child processes will not know whether this is
+ * a genuine value or erroneous already-used value. */
+ g_unsetenv ("DESKTOP_AUTOSTART_ID");
+}
+
+static gboolean
+handle_sigterm (gpointer user_data)
+{
+ GMainLoop *main_loop = user_data;
+
+ g_debug ("Got SIGTERM; shutting down ...");
+
+ if (g_main_loop_is_running (main_loop))
+ g_main_loop_quit (main_loop);
+
+ return G_SOURCE_REMOVE;
+}
+
+static void
+install_signal_handler (GMainLoop *loop)
+{
+ g_autoptr(GSource) source = NULL;
+
+ source = g_unix_signal_source_new (SIGTERM);
+
+ g_source_set_callback (source, handle_sigterm, loop, NULL);
+ g_source_attach (source, NULL);
+}
+
+static void
+bus_acquired_cb (GDBusConnection *connection,
+ const gchar *name,
+ gpointer user_data G_GNUC_UNUSED)
+{
+ g_debug ("%s: acquired bus %p for name %s", G_STRFUNC, connection, name);
+}
+
+static void
+name_acquired_cb (GDBusConnection *connection,
+ const gchar *name,
+ gpointer user_data G_GNUC_UNUSED)
+{
+ g_debug ("%s: acquired name %s on bus %p", G_STRFUNC, name, connection);
+}
+
+static void
+name_lost_cb (GDBusConnection *connection,
+ const gchar *name,
+ gpointer user_data G_GNUC_UNUSED)
+{
+ g_debug ("%s: lost name %s on bus %p", G_STRFUNC, name, connection);
+}
+
+int
+main (int argc, char **argv)
+{
+ GError *error = NULL;
+ GOptionContext *context;
+ GMainLoop *loop;
+ guint name_own_id;
+
+ bindtextdomain (GETTEXT_PACKAGE, GNOME_SETTINGS_LOCALEDIR);
+ bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
+ textdomain (GETTEXT_PACKAGE);
+ setlocale (LC_ALL, "");
+
+ context = g_option_context_new (NULL);
+ g_option_context_add_main_entries (context, entries, GETTEXT_PACKAGE);
+ if (!g_option_context_parse (context, &argc, &argv, &error)) {
+ fprintf (stderr, "%s\n", error->message);
+ g_error_free (error);
+ exit (1);
+ }
+ g_option_context_free (context);
+
+ loop = g_main_loop_new (NULL, FALSE);
+
+ if (verbose) {
+ g_setenv ("G_MESSAGES_DEBUG", "all", TRUE);
+ /* Work around GLib not flushing the output for us by explicitly
+ * setting buffering to a sane behaviour. This is important
+ * during testing when the output is not going to a TTY and
+ * we are reading messages from g_debug on stdout.
+ *
+ * See also
+ * https://bugzilla.gnome.org/show_bug.cgi?id=792432
+ */
+ setlinebuf (stdout);
+ }
+
+ if (timeout > 0) {
+ guint id;
+ id = g_timeout_add_seconds (timeout, (GSourceFunc) g_main_loop_quit, loop);
+ g_source_set_name_by_id (id, "[gnome-settings-daemon] g_main_loop_quit");
+ }
+
+ install_signal_handler (loop);
+
+ manager = NEW ();
+ register_with_gnome_session (loop);
+
+ if (!START (manager, &error)) {
+ fprintf (stderr, "Failed to start: %s\n", error->message);
+ g_error_free (error);
+ exit (1);
+ }
+
+ name_own_id = g_bus_own_name (G_BUS_TYPE_SESSION,
+ PLUGIN_DBUS_NAME,
+ G_BUS_NAME_OWNER_FLAGS_DO_NOT_QUEUE,
+ bus_acquired_cb,
+ name_acquired_cb,
+ name_lost_cb,
+ NULL, /* user_data */
+ NULL /* user_data_free_func */);
+
+ g_main_loop_run (loop);
+
+ STOP (manager);
+
+ g_object_unref (manager);
+ g_bus_unown_name (name_own_id);
+
+ return 0;
+}