479 lines
10 KiB
C
479 lines
10 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
|
|
*
|
|
* Copyright (C) 2007 David Zeuthen <david@fubar.dk>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <fcntl.h>
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include <dbus/dbus-glib.h>
|
|
#include <dbus/dbus-glib-lowlevel.h>
|
|
|
|
#include "set-timezone.h"
|
|
|
|
|
|
static DBusGConnection *
|
|
get_system_bus (GError **err)
|
|
{
|
|
GError *error;
|
|
static DBusGConnection *bus = NULL;
|
|
|
|
if (bus == NULL) {
|
|
error = NULL;
|
|
bus = dbus_g_bus_get (DBUS_BUS_SYSTEM, &error);
|
|
if (bus == NULL) {
|
|
g_propagate_error (err, error);
|
|
}
|
|
}
|
|
|
|
return bus;
|
|
}
|
|
|
|
#define CACHE_VALIDITY_SEC 2
|
|
|
|
typedef void (*CanDoFunc) (gint value);
|
|
|
|
static void
|
|
notify_can_do (DBusGProxy *proxy,
|
|
DBusGProxyCall *call,
|
|
void *user_data)
|
|
{
|
|
CanDoFunc callback = user_data;
|
|
GError *error = NULL;
|
|
gint value;
|
|
|
|
if (dbus_g_proxy_end_call (proxy, call,
|
|
&error,
|
|
G_TYPE_INT, &value,
|
|
G_TYPE_INVALID)) {
|
|
callback (value);
|
|
}
|
|
}
|
|
|
|
static void
|
|
refresh_can_do (const gchar *action, CanDoFunc callback)
|
|
{
|
|
DBusGConnection *bus;
|
|
DBusGProxy *proxy;
|
|
|
|
bus = get_system_bus (NULL);
|
|
if (bus == NULL)
|
|
return;
|
|
|
|
proxy = dbus_g_proxy_new_for_name (bus,
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism",
|
|
"/",
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism");
|
|
|
|
dbus_g_proxy_begin_call_with_timeout (proxy,
|
|
action,
|
|
notify_can_do,
|
|
callback, NULL,
|
|
INT_MAX,
|
|
G_TYPE_INVALID);
|
|
}
|
|
|
|
static gint settimezone_cache = 0;
|
|
static time_t settimezone_stamp = 0;
|
|
|
|
static void
|
|
update_can_settimezone (gint res)
|
|
{
|
|
settimezone_cache = res;
|
|
time (&settimezone_stamp);
|
|
}
|
|
|
|
gint
|
|
can_set_system_timezone (void)
|
|
{
|
|
time_t now;
|
|
|
|
time (&now);
|
|
if (ABS (now - settimezone_stamp) > CACHE_VALIDITY_SEC) {
|
|
refresh_can_do ("CanSetTimezone", update_can_settimezone);
|
|
settimezone_stamp = now;
|
|
}
|
|
|
|
return settimezone_cache;
|
|
}
|
|
|
|
static gint settime_cache = 0;
|
|
static time_t settime_stamp = 0;
|
|
|
|
static void
|
|
update_can_settime (gint res)
|
|
{
|
|
settime_cache = res;
|
|
time (&settime_stamp);
|
|
}
|
|
|
|
gint
|
|
can_set_system_time (void)
|
|
{
|
|
time_t now;
|
|
|
|
time (&now);
|
|
if (ABS (now - settime_stamp) > CACHE_VALIDITY_SEC) {
|
|
refresh_can_do ("CanSetTime", update_can_settime);
|
|
settime_stamp = now;
|
|
}
|
|
|
|
return settime_cache;
|
|
}
|
|
|
|
static gint usingntp_cache = 0;
|
|
static time_t usingntp_stamp = 0;
|
|
|
|
static void
|
|
update_can_usingntp (gint res)
|
|
{
|
|
usingntp_cache = res;
|
|
time (&usingntp_stamp);
|
|
}
|
|
|
|
gint
|
|
can_set_using_ntp (void)
|
|
{
|
|
time_t now;
|
|
|
|
time (&now);
|
|
if (ABS (now - usingntp_stamp) > CACHE_VALIDITY_SEC) {
|
|
refresh_can_do ("CanSetUsingNtp", update_can_usingntp);
|
|
settime_stamp = now;
|
|
}
|
|
|
|
return usingntp_cache;
|
|
}
|
|
|
|
typedef struct {
|
|
gint ref_count;
|
|
gchar *call;
|
|
gint64 time;
|
|
gchar *tz;
|
|
gboolean using_ntp;
|
|
GFunc callback;
|
|
gpointer data;
|
|
GDestroyNotify notify;
|
|
} SetTimeCallbackData;
|
|
|
|
static void
|
|
free_data (gpointer d)
|
|
{
|
|
SetTimeCallbackData *data = d;
|
|
|
|
data->ref_count--;
|
|
if (data->ref_count == 0) {
|
|
if (data->notify)
|
|
data->notify (data->data);
|
|
g_free (data->tz);
|
|
g_free (data);
|
|
}
|
|
}
|
|
|
|
static void
|
|
set_time_notify (DBusGProxy *proxy,
|
|
DBusGProxyCall *call,
|
|
void *user_data)
|
|
{
|
|
SetTimeCallbackData *data = user_data;
|
|
GError *error = NULL;
|
|
|
|
if (dbus_g_proxy_end_call (proxy, call, &error, G_TYPE_INVALID)) {
|
|
if (data->callback)
|
|
data->callback (data->data, NULL);
|
|
}
|
|
else {
|
|
if (error->domain == DBUS_GERROR &&
|
|
error->code == DBUS_GERROR_NO_REPLY) {
|
|
/* these errors happen because dbus doesn't
|
|
* use monotonic clocks
|
|
*/
|
|
g_warning ("ignoring no-reply error when setting time");
|
|
g_error_free (error);
|
|
if (data->callback)
|
|
data->callback (data->data, NULL);
|
|
}
|
|
else {
|
|
if (data->callback)
|
|
data->callback (data->data, error);
|
|
else
|
|
g_error_free (error);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
set_time_async (SetTimeCallbackData *data)
|
|
{
|
|
DBusGConnection *bus;
|
|
DBusGProxy *proxy;
|
|
GError *err = NULL;
|
|
|
|
bus = get_system_bus (&err);
|
|
if (bus == NULL) {
|
|
if (err) {
|
|
if (data->callback)
|
|
data->callback (data->data, err);
|
|
g_clear_error (&err);
|
|
}
|
|
return;
|
|
}
|
|
|
|
proxy = dbus_g_proxy_new_for_name (bus,
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism",
|
|
"/",
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism");
|
|
|
|
data->ref_count++;
|
|
if (strcmp (data->call, "SetTime") == 0)
|
|
dbus_g_proxy_begin_call_with_timeout (proxy,
|
|
"SetTime",
|
|
set_time_notify,
|
|
data, free_data,
|
|
INT_MAX,
|
|
/* parameters: */
|
|
G_TYPE_INT64, data->time,
|
|
G_TYPE_INVALID,
|
|
/* return values: */
|
|
G_TYPE_INVALID);
|
|
else if (strcmp (data->call, "SetTimezone") == 0)
|
|
dbus_g_proxy_begin_call_with_timeout (proxy,
|
|
"SetTimezone",
|
|
set_time_notify,
|
|
data, free_data,
|
|
INT_MAX,
|
|
/* parameters: */
|
|
G_TYPE_STRING, data->tz,
|
|
G_TYPE_INVALID,
|
|
/* return values: */
|
|
G_TYPE_INVALID);
|
|
else if (strcmp (data->call, "SetUsingNtp") == 0)
|
|
dbus_g_proxy_begin_call_with_timeout (proxy,
|
|
"SetUsingNtp",
|
|
set_time_notify,
|
|
data, free_data,
|
|
INT_MAX,
|
|
/* parameters: */
|
|
G_TYPE_BOOLEAN, data->using_ntp,
|
|
G_TYPE_INVALID,
|
|
/* return values: */
|
|
G_TYPE_INVALID);
|
|
}
|
|
|
|
void
|
|
set_system_time_async (gint64 time,
|
|
GFunc callback,
|
|
gpointer d,
|
|
GDestroyNotify notify)
|
|
{
|
|
SetTimeCallbackData *data;
|
|
|
|
if (time == -1)
|
|
return;
|
|
|
|
data = g_new0 (SetTimeCallbackData, 1);
|
|
data->ref_count = 1;
|
|
data->call = "SetTime";
|
|
data->time = time;
|
|
data->tz = NULL;
|
|
data->callback = callback;
|
|
data->data = d;
|
|
data->notify = notify;
|
|
|
|
set_time_async (data);
|
|
free_data (data);
|
|
}
|
|
|
|
void
|
|
set_system_timezone_async (const gchar *tz,
|
|
GFunc callback,
|
|
gpointer d,
|
|
GDestroyNotify notify)
|
|
{
|
|
SetTimeCallbackData *data;
|
|
|
|
g_return_if_fail (tz != NULL);
|
|
|
|
data = g_new0 (SetTimeCallbackData, 1);
|
|
data->ref_count = 1;
|
|
data->call = "SetTimezone";
|
|
data->time = -1;
|
|
data->tz = g_strdup (tz);
|
|
data->callback = callback;
|
|
data->data = d;
|
|
data->notify = notify;
|
|
|
|
set_time_async (data);
|
|
free_data (data);
|
|
}
|
|
|
|
/* get timezone */
|
|
|
|
typedef struct
|
|
{
|
|
GetTimezoneFunc callback;
|
|
GDestroyNotify notify;
|
|
|
|
gpointer data;
|
|
|
|
} GetTimezoneData;
|
|
|
|
static void
|
|
get_timezone_destroy_notify (GetTimezoneData *data)
|
|
{
|
|
if (data->notify && data->data)
|
|
data->notify (data);
|
|
|
|
g_free (data);
|
|
}
|
|
|
|
static void
|
|
get_timezone_notify (DBusGProxy *proxy,
|
|
DBusGProxyCall *call,
|
|
void *user_data)
|
|
{
|
|
GError *error = NULL;
|
|
gboolean retval;
|
|
gchar *string = NULL;
|
|
GetTimezoneData *data = user_data;
|
|
|
|
retval = dbus_g_proxy_end_call (proxy, call, &error,
|
|
G_TYPE_STRING, &string,
|
|
G_TYPE_INVALID);
|
|
|
|
if (data->callback) {
|
|
if (!retval) {
|
|
data->callback (data->data, NULL, error);
|
|
g_error_free (error);
|
|
}
|
|
else {
|
|
data->callback (data->data, string, NULL);
|
|
g_free (string);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
get_system_timezone_async (GetTimezoneFunc callback,
|
|
gpointer user_data,
|
|
GDestroyNotify notify)
|
|
{
|
|
DBusGConnection *bus;
|
|
DBusGProxy *proxy;
|
|
GetTimezoneData *data;
|
|
GError *error = NULL;
|
|
|
|
bus = get_system_bus (&error);
|
|
if (bus == NULL) {
|
|
if (error) {
|
|
if (callback)
|
|
callback (user_data, NULL, error);
|
|
g_clear_error (&error);
|
|
}
|
|
return;
|
|
|
|
}
|
|
|
|
data = g_new0 (GetTimezoneData, 1);
|
|
data->data = user_data;
|
|
data->notify = notify;
|
|
data->callback = callback;
|
|
|
|
proxy = dbus_g_proxy_new_for_name (bus,
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism",
|
|
"/",
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism");
|
|
|
|
dbus_g_proxy_begin_call (proxy,
|
|
"GetTimezone",
|
|
get_timezone_notify,
|
|
data,
|
|
(GDestroyNotify) get_timezone_destroy_notify,
|
|
/* parameters: */
|
|
G_TYPE_INVALID,
|
|
/* return values: */
|
|
G_TYPE_STRING,
|
|
G_TYPE_INVALID);
|
|
|
|
}
|
|
|
|
gboolean
|
|
get_using_ntp (void)
|
|
{
|
|
static gboolean is_using_cache = FALSE;
|
|
static time_t last_refreshed = 0;
|
|
time_t now;
|
|
DBusGConnection *bus;
|
|
DBusGProxy *proxy;
|
|
|
|
time (&now);
|
|
if (ABS (now - last_refreshed) > CACHE_VALIDITY_SEC) {
|
|
gboolean cu, iu;
|
|
bus = get_system_bus (NULL);
|
|
if (bus == NULL)
|
|
return FALSE;
|
|
|
|
proxy = dbus_g_proxy_new_for_name (bus,
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism",
|
|
"/",
|
|
"org.gnome.SettingsDaemon.DateTimeMechanism");
|
|
|
|
|
|
if (dbus_g_proxy_call (proxy,
|
|
"GetUsingNtp",
|
|
NULL,
|
|
G_TYPE_INVALID,
|
|
G_TYPE_BOOLEAN, &cu,
|
|
G_TYPE_BOOLEAN, &iu,
|
|
G_TYPE_INVALID)) {
|
|
is_using_cache = iu;
|
|
last_refreshed = now;
|
|
}
|
|
}
|
|
|
|
return is_using_cache;
|
|
}
|
|
|
|
void
|
|
set_using_ntp_async (gboolean using_ntp,
|
|
GFunc callback,
|
|
gpointer d,
|
|
GDestroyNotify notify)
|
|
{
|
|
SetTimeCallbackData *data;
|
|
|
|
data = g_new0 (SetTimeCallbackData, 1);
|
|
data->ref_count = 1;
|
|
data->call = "SetUsingNtp";
|
|
data->time = -1;
|
|
data->using_ntp = using_ntp;
|
|
data->callback = callback;
|
|
data->data = d;
|
|
data->notify = notify;
|
|
|
|
set_time_async (data);
|
|
free_data (data);
|
|
}
|