#include <unistd.h>
#include <limits.h>
+#include <signal.h>
#include <sys/param.h>
#include <string.h>
#include <glib/gprintf.h>
#include <glib-unix.h>
+#include <polkit/polkit.h>
#include "localed-gen.h"
#include "localed.h"
GPtrArray *localed_freeable;
Locale1 *localed_interf;
+GMainLoop *localed_loop;
+
+guint bus_descriptor;
+gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */
+
/* --- begin method/property/dbus signal code --- */
/*static gboolean
const gchar *
our_get_hostname() {
- gchar *hostname_buf, *ret;
- size_t hostname_divider;
+ gchar *hostname_buf, *ret;
+ size_t hostname_divider;
- hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
- ret = (gchar*) g_malloc0(MAXHOSTNAMELEN);
- g_ptr_array_add(localed_freeable, hostname_buf);
- g_ptr_array_add(localed_freeable, ret);
+ hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
+ ret = (gchar*) g_malloc0(MAXHOSTNAMELEN);
+ g_ptr_array_add(localed_freeable, hostname_buf);
+ g_ptr_array_add(localed_freeable, ret);
- if(gethostname(hostname_buf, MAXHOSTNAMELEN))
- return "";
+ if(gethostname(hostname_buf, MAXHOSTNAMELEN))
+ return "";
- hostname_divider = strcspn(hostname_buf, ".");
+ hostname_divider = strcspn(hostname_buf, ".");
- return strncpy(ret, hostname_buf, hostname_divider);
+ return strncpy(ret, hostname_buf, hostname_divider);
}*/
/* --- end method/property/dbus signal code, begin bus/name handlers --- */
const gchar *name,
gpointer user_data) {
- g_print("got bus, name: %s\n", name);
-
-}
-
-static void localed_on_name_acquired(GDBusConnection *conn,
- const gchar *name,
- gpointer user_data) {
-
- g_print("got '%s' on system bus\n", name);
-
+ g_printf("got bus/name, exporting %s's interface...\n", name);
+
localed_interf = locale1_skeleton_new();
/* attach function pointers to generated struct's method handlers
"/org/freedesktop/locale1",
NULL)) {
- g_printf("Failed to export Locale1's interface!");
+ g_printf("failed to export %s's interface!\n", name);
+ localed_mem_clean();
+
+ } else {
+
+ dbus_interface_exported = TRUE;
+ g_printf("exported %s's interface on the system bus...\n", name);
}
+}
+
+static void localed_on_name_acquired(GDBusConnection *conn,
+ const gchar *name,
+ gpointer user_data) {
+ g_printf("success!\n");
}
static void localed_on_name_lost(GDBusConnection *conn,
const gchar *name,
gpointer user_data) {
- g_print("lost name %s, exiting...", name);
+ if(!conn) {
- localed_mem_clean();
- g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(localed_interf));
+ g_printf("failed to connect to the system bus while trying to acquire name '%s': either dbus-daemon isn't running or we don't have permission to push names and/or their interfaces to it.\n", name);
+ localed_mem_clean();
+ }
+ g_print("lost name %s, exiting...\n", name);
+
+ localed_mem_clean();
}
/* --- end bus/name handlers, begin misc unix functions --- */
-/* free()'s */
+/* safe call to clean and then exit
+ * this stops our GMainLoop safely before letting main() return */
void localed_mem_clean() {
- g_ptr_array_foreach(localed_freeable, (GFunc) g_free, NULL);
- g_ptr_array_free(localed_freeable, TRUE);
+ g_printf("exiting...\n");
+
+ if(dbus_interface_exported)
+ g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(localed_interf));
+
+ if(g_main_loop_is_running(localed_loop))
+ g_main_loop_quit(localed_loop);
+
+}
+
+/* wrapper for glib's unix signal handling; called only once if terminating signal is raised against us */
+gboolean unix_sig_terminate_handler(gpointer data) {
+
+ g_printf("caught SIGINT/HUP/TERM, exiting\n");
+
+ localed_mem_clean();
+ return G_SOURCE_REMOVE;
+}
+
+void set_signal_handlers() {
+
+ /* we don't care about its descriptor, we never need to unregister these */
+ g_unix_signal_add(SIGINT, unix_sig_terminate_handler, NULL);
+ g_unix_signal_add(SIGHUP, unix_sig_terminate_handler, NULL);
+ g_unix_signal_add(SIGTERM, unix_sig_terminate_handler, NULL);
}
int main() {
- guint bus_descriptor;
- GMainLoop *localed_loop;
+ set_signal_handlers();
- localed_loop = g_main_loop_new(NULL, TRUE);
- localed_freeable = g_ptr_array_new();
+ localed_loop = g_main_loop_new(NULL, TRUE);
+ localed_freeable = g_ptr_array_new();
- bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
+ bus_descriptor = g_bus_own_name(G_BUS_TYPE_SYSTEM,
"org.freedesktop.locale1",
G_BUS_NAME_OWNER_FLAGS_NONE,
localed_on_bus_acquired,
NULL,
NULL);
- g_main_loop_run(localed_loop);
- g_main_loop_unref(localed_loop);
+ g_main_loop_run(localed_loop);
+ /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
+ g_main_loop_unref(localed_loop);
- g_bus_unown_name(bus_descriptor);
+ /* guaranteed unownable */
+ g_bus_unown_name(bus_descriptor);
- localed_mem_clean();
+ /* at this point no operations can occur with our data, it is safe to free it + its container */
+ g_ptr_array_free(localed_freeable, TRUE);
- return 0;
+ return 0;
}
projects / systembsd.git / blobdiff