X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?p=systembsd.git;a=blobdiff_plain;f=src%2Finterfaces%2Ftimedated%2Ftimedated.c;h=87b5392fac8e619423c33b7df64ee5b596bafcee;hp=5d465dd4fd4ff08f0f5bec04390b565896d4e96c;hb=a3d2e50f33b4a595ff5fe44ed1d28de03d3da22d;hpb=b70beb08c1c83303a7d811b19caa4f23f927cf7b diff --git a/src/interfaces/timedated/timedated.c b/src/interfaces/timedated/timedated.c index 5d465dd..87b5392 100644 --- a/src/interfaces/timedated/timedated.c +++ b/src/interfaces/timedated/timedated.c @@ -16,111 +16,219 @@ #include #include +#include -#include +#include +#include #include #include #include +#include #include "timedated-gen.h" #include "timedated.h" +#include "../../util.h" + GPtrArray *timedated_freeable; Timedate1 *timedated_interf; +GMainLoop *timedated_loop; + +guint bus_descriptor; +gboolean dbus_interface_exported; /* reliable because of gdbus operational guarantees */ + /* --- begin method/property/dbus signal code --- */ -/*static gboolean -on_handle_set_hostname(Timedate1 *hn1_passed_interf, - GDBusMethodInvocation *invoc, - const gchar *greet, - gpointer data) { +static gboolean +on_handle_set_time(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { return FALSE; -}*/ +} -/*const gchar * -our_get_hostname() { +static gboolean +on_handle_set_timezone(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - gchar *hostname_buf, *ret; - size_t hostname_divider; +static gboolean +on_handle_set_local_rtc(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN); - ret = (gchar*) g_malloc0(MAXHOSTNAMELEN); - g_ptr_array_add(timedated_freeable, hostname_buf); - g_ptr_array_add(timedated_freeable, ret); +static gboolean +on_handle_set_ntp(Timedate1 *hn1_passed_interf, + GDBusMethodInvocation *invoc, + const gchar *greet, + gpointer data) { + return FALSE; +} - if(gethostname(hostname_buf, MAXHOSTNAMELEN)) - return ""; +const gchar * +our_get_timezone() { - hostname_divider = strcspn(hostname_buf, "."); + return ""; +} - return strncpy(ret, hostname_buf, hostname_divider); -}*/ +gboolean +our_get_local_rtc() { -/* --- end method/property/dbus signal code, begin bus/name handlers --- */ + gboolean ret = FALSE; -static void timedated_on_bus_acquired(GDBusConnection *conn, - const gchar *name, - gpointer user_data) { + return ret; +} - g_print("got bus, name: %s\n", name); +gboolean +our_get_can_ntp() { + + const gboolean ret = FALSE; + return ret; } -static void timedated_on_name_acquired(GDBusConnection *conn, - const gchar *name, - gpointer user_data) { +gboolean +our_get_ntp() { + + const gboolean ret = FALSE; - g_print("got '%s' on system bus\n", name); + return ret; +} - timedated_interf = timedate1_skeleton_new(); +gboolean +our_get_ntpsynchronized() { + + const gboolean ret = FALSE; + + return ret; +} - /* attach function pointers to generated struct's method handlers - g_signal_connect(timedated_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/ +guint64 +our_get_time_usec() { - /* set our properties before export - timedate1_set_hostname(timedated_interf, our_get_hostname()); */ - + guint64 ret = 0; + + return ret; +} + +guint64 +our_get_rtc_time_usec() { + + guint64 ret = 0; + + return ret; +} + +/* --- end method/property/dbus signal code, begin bus/name handlers --- */ + +static void timedated_on_bus_acquired(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { + + g_printf("got bus/name, exporting %s's interface...\n", name); + + timedated_interf = timedate1_skeleton_new(); + + /* attach function pointers to generated struct's method handlers */ + g_signal_connect(timedated_interf, "handle-set-time", G_CALLBACK(on_handle_set_time), NULL); + g_signal_connect(timedated_interf, "handle-set-timezone", G_CALLBACK(on_handle_set_timezone), NULL); + g_signal_connect(timedated_interf, "handle-set-local-rtc", G_CALLBACK(on_handle_set_local_rtc), NULL); + g_signal_connect(timedated_interf, "handle-set-ntp", G_CALLBACK(on_handle_set_ntp), NULL); + /* set our properties before export */ + timedate1_set_timezone(timedated_interf, our_get_timezone()); + timedate1_set_local_rtc(timedated_interf, our_get_local_rtc()); + timedate1_set_can_ntp(timedated_interf, our_get_can_ntp()); + timedate1_set_ntp(timedated_interf, our_get_ntp()); + timedate1_set_ntpsynchronized(timedated_interf, our_get_ntpsynchronized()); + timedate1_set_time_usec(timedated_interf, our_get_time_usec()); + timedate1_set_rtctime_usec(timedated_interf, our_get_rtc_time_usec()); + if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf), conn, "/org/freedesktop/timedate1", NULL)) { - g_printf("Failed to export Timedate1's interface!"); + g_printf("failed to export %s's interface!\n", name); + timedated_mem_clean(); + + } else { + + dbus_interface_exported = TRUE; + g_printf("exported %s's interface on the system bus...\n", name); } +} + +static void timedated_on_name_acquired(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { + g_printf("success!\n"); } static void timedated_on_name_lost(GDBusConnection *conn, const gchar *name, gpointer user_data) { - g_print("lost name %s, exiting...", name); + if(!conn) { - timedated_mem_clean(); - g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_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); + timedated_mem_clean(); + } + g_print("lost name %s, exiting...\n", name); + + timedated_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 timedated_mem_clean() { - g_ptr_array_foreach(timedated_freeable, (GFunc) g_free, NULL); - g_ptr_array_free(timedated_freeable, TRUE); + g_printf("exiting...\n"); + + if(dbus_interface_exported) + g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf)); + + if(g_main_loop_is_running(timedated_loop)) + g_main_loop_quit(timedated_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"); + + timedated_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 *timedated_loop; + set_signal_handlers(); - timedated_loop = g_main_loop_new(NULL, TRUE); - timedated_freeable = g_ptr_array_new(); + timedated_loop = g_main_loop_new(NULL, TRUE); + timedated_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.timedate1", G_BUS_NAME_OWNER_FLAGS_NONE, timedated_on_bus_acquired, @@ -129,12 +237,15 @@ int main() { NULL, NULL); - g_main_loop_run(timedated_loop); - g_main_loop_unref(timedated_loop); + g_main_loop_run(timedated_loop); + /* runs until single g_main_loop_quit() call is raised inside _mem_clean() */ + g_main_loop_unref(timedated_loop); - g_bus_unown_name(bus_descriptor); + /* guaranteed unownable */ + g_bus_unown_name(bus_descriptor); - timedated_mem_clean(); + /* at this point no operations can occur with our data, it is safe to free it + its container */ + g_ptr_array_free(timedated_freeable, TRUE); - return 0; + return 0; }