2 * Copyright (c) 2014 Ian Sutton <ian@kremlin.cc>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
21 #include <sys/param.h>
24 #include <glib/gprintf.h>
25 #include <glib-unix.h>
26 #include <polkit/polkit.h>
28 #include "timedated-gen.h"
29 #include "timedated.h"
31 GPtrArray
*timedated_freeable
;
32 Timedate1
*timedated_interf
;
34 GMainLoop
*timedated_loop
;
37 gboolean dbus_interface_exported
; /* reliable because of gdbus operational guarantees */
39 /* --- begin method/property/dbus signal code --- */
42 on_handle_set_hostname(Timedate1 *hn1_passed_interf,
43 GDBusMethodInvocation *invoc,
52 gchar *hostname_buf, *ret;
53 size_t hostname_divider;
55 hostname_buf = (gchar*) g_malloc0(MAXHOSTNAMELEN);
56 ret = (gchar*) g_malloc0(MAXHOSTNAMELEN);
57 g_ptr_array_add(timedated_freeable, hostname_buf);
58 g_ptr_array_add(timedated_freeable, ret);
60 if(gethostname(hostname_buf, MAXHOSTNAMELEN))
63 hostname_divider = strcspn(hostname_buf, ".");
65 return strncpy(ret, hostname_buf, hostname_divider);
68 /* --- end method/property/dbus signal code, begin bus/name handlers --- */
70 static void timedated_on_bus_acquired(GDBusConnection
*conn
,
74 g_printf("got bus/name, exporting %s's interface...\n", name
);
76 timedated_interf
= timedate1_skeleton_new();
78 /* attach function pointers to generated struct's method handlers
79 g_signal_connect(timedated_interf, "handle-set-hostname", G_CALLBACK(on_handle_set_hostname), NULL);*/
81 /* set our properties before export
82 timedate1_set_hostname(timedated_interf, our_get_hostname()); */
84 if(!g_dbus_interface_skeleton_export(G_DBUS_INTERFACE_SKELETON(timedated_interf
),
86 "/org/freedesktop/timedate1",
89 g_printf("failed to export %s's interface!\n", name
);
90 timedated_mem_clean();
94 dbus_interface_exported
= TRUE
;
95 g_printf("exported %s's interface on the system bus...\n", name
);
99 static void timedated_on_name_acquired(GDBusConnection
*conn
,
101 gpointer user_data
) {
103 g_printf("success!\n");
106 static void timedated_on_name_lost(GDBusConnection
*conn
,
108 gpointer user_data
) {
112 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
);
113 timedated_mem_clean();
116 g_print("lost name %s, exiting...\n", name
);
118 timedated_mem_clean();
121 /* --- end bus/name handlers, begin misc unix functions --- */
123 /* safe call to clean and then exit
124 * this stops our GMainLoop safely before letting main() return */
125 void timedated_mem_clean() {
127 g_printf("exiting...\n");
129 if(dbus_interface_exported
)
130 g_dbus_interface_skeleton_unexport(G_DBUS_INTERFACE_SKELETON(timedated_interf
));
132 if(g_main_loop_is_running(timedated_loop
))
133 g_main_loop_quit(timedated_loop
);
137 /* wrapper for glib's unix signal handling; called only once if terminating signal is raised against us */
138 gboolean
unix_sig_terminate_handler(gpointer data
) {
140 g_printf("caught SIGINT/HUP/TERM, exiting\n");
142 timedated_mem_clean();
143 return G_SOURCE_REMOVE
;
146 void set_signal_handlers() {
148 /* we don't care about its descriptor, we never need to unregister these */
149 g_unix_signal_add(SIGINT
, unix_sig_terminate_handler
, NULL
);
150 g_unix_signal_add(SIGHUP
, unix_sig_terminate_handler
, NULL
);
151 g_unix_signal_add(SIGTERM
, unix_sig_terminate_handler
, NULL
);
156 set_signal_handlers();
158 timedated_loop
= g_main_loop_new(NULL
, TRUE
);
159 timedated_freeable
= g_ptr_array_new();
161 bus_descriptor
= g_bus_own_name(G_BUS_TYPE_SYSTEM
,
162 "org.freedesktop.timedate1",
163 G_BUS_NAME_OWNER_FLAGS_NONE
,
164 timedated_on_bus_acquired
,
165 timedated_on_name_acquired
,
166 timedated_on_name_lost
,
170 g_main_loop_run(timedated_loop
);
171 /* runs until single g_main_loop_quit() call is raised inside <interface>_mem_clean() */
172 g_main_loop_unref(timedated_loop
);
174 /* guaranteed unownable */
175 g_bus_unown_name(bus_descriptor
);
177 /* at this point no operations can occur with our data, it is safe to free it + its container */
178 g_ptr_array_free(timedated_freeable
, TRUE
);