X-Git-Url: https://uglyman.kremlin.cc/gitweb/gitweb.cgi?p=systembsd.git;a=blobdiff_plain;f=src%2Finterfaces%2Ftimedated%2Ftimedated.c;h=e79682a1989b3f6f580e59b5ee08f4a50f630426;hp=53a3a3cb76265a1ae72e6f576bbbc8bc2bea398b;hb=28b8601547e085e8fd112327653301254a95e8aa;hpb=1ce41045ba731467499b85d409c65e2dc96dd74d diff --git a/src/interfaces/timedated/timedated.c b/src/interfaces/timedated/timedated.c index 53a3a3c..e79682a 100644 --- a/src/interfaces/timedated/timedated.c +++ b/src/interfaces/timedated/timedated.c @@ -16,46 +16,115 @@ #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; +} + +const gchar * +our_get_timezone() { + + return ""; +} - if(gethostname(hostname_buf, MAXHOSTNAMELEN)) - return ""; +gboolean +our_get_local_rtc() { - hostname_divider = strcspn(hostname_buf, "."); + gboolean ret = FALSE; - return strncpy(ret, hostname_buf, hostname_divider); -}*/ + return ret; +} + +gboolean +our_get_can_ntp() { + + const gboolean ret = FALSE; + + return ret; +} + +gboolean +our_get_ntp() { + + const gboolean ret = FALSE; + + return ret; +} + +gboolean +our_get_ntpsynchronized() { + + const gboolean ret = FALSE; + + return ret; +} + +guint64 +our_get_time_usec() { + + 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 --- */ @@ -63,63 +132,102 @@ static void timedated_on_bus_acquired(GDBusConnection *conn, const gchar *name, gpointer user_data) { - g_print("got bus, name: %s\n", name); + 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 %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, + const gchar *name, gpointer user_data) { - g_print("got '%s' on system bus\n", name); - - timedated_interf = timedate1_skeleton_new(); + g_printf("success!\n"); +} - /* attach function pointers to generated struct's method handlers - g_signal_connect(timedated_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/ +static void timedated_on_name_lost(GDBusConnection *conn, + const gchar *name, + gpointer user_data) { - /* set our properties before export - timedate1_set_hostname(timedated_interf, our_get_hostname()); */ - - if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf), - conn, - "/org/freedesktop/timedate1", - NULL)) { + if(!conn) { - g_printf("Failed to export Timedate1's interface!"); + 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 functions --- */ +/* --- 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); + } -static void timedated_on_name_lost(GDBusConnection *conn, - const gchar *name, - gpointer user_data) { +/* 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_print("lost name %s, exiting...", name); + g_printf("caught SIGINT/HUP/TERM, exiting\n"); timedated_mem_clean(); - g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf)); + 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, @@ -128,12 +236,15 @@ 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; }