mirror of
https://gitlab.gnome.org/GNOME/glib.git
synced 2024-11-06 17:36:14 +01:00
0d268c4825
Nicks and blurbs don't have any practical use for gio/gobject libraries. Leaving tests untouched since this features is still used by other libraries. Closes #2991
131 lines
4.3 KiB
C
131 lines
4.3 KiB
C
/* GIO - GLib Input, Output and Streaming Library
|
||
*
|
||
* Copyright 2019 Red Hat, Inc
|
||
* Copyright 2021 Igalia S.L.
|
||
*
|
||
* SPDX-License-Identifier: LGPL-2.1-or-later
|
||
*
|
||
* This library is free software; you can redistribute it and/or
|
||
* modify it under the terms of the GNU Lesser General Public
|
||
* License as published by the Free Software Foundation; either
|
||
* version 2.1 of the License, or (at your option) any later version.
|
||
*
|
||
* This library 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
|
||
* Lesser General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU Lesser General
|
||
* Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#include "config.h"
|
||
#include "glib.h"
|
||
#include "glibintl.h"
|
||
|
||
#include "gpowerprofilemonitor.h"
|
||
#include "ginetaddress.h"
|
||
#include "ginetsocketaddress.h"
|
||
#include "ginitable.h"
|
||
#include "gioenumtypes.h"
|
||
#include "giomodule-priv.h"
|
||
#include "gtask.h"
|
||
|
||
/**
|
||
* GPowerProfileMonitor:
|
||
*
|
||
* `GPowerProfileMonitor` makes it possible for applications as well as OS
|
||
* components to monitor system power profiles and act upon them. It currently
|
||
* only exports whether the system is in “Power Saver” mode (known as
|
||
* “Low Power” mode on some systems).
|
||
*
|
||
* When in “Low Power” mode, it is recommended that applications:
|
||
* - disable automatic downloads;
|
||
* - reduce the rate of refresh from online sources such as calendar or
|
||
* email synchronisation;
|
||
* - reduce the use of expensive visual effects.
|
||
*
|
||
* It is also likely that OS components providing services to applications will
|
||
* lower their own background activity, for the sake of the system.
|
||
*
|
||
* There are a variety of tools that exist for power consumption analysis, but those
|
||
* usually depend on the OS and hardware used. On Linux, one could use `upower` to
|
||
* monitor the battery discharge rate, `powertop` to check on the background activity
|
||
* or activity at all), `sysprof` to inspect CPU usage, and `intel_gpu_time` to
|
||
* profile GPU usage.
|
||
*
|
||
* Don’t forget to disconnect the [signal@GObject.Object::notify] signal for
|
||
* [property@Gio.PowerProfileMonitor:power-saver-enabled], and unref the
|
||
* `GPowerProfileMonitor` itself when exiting.
|
||
*
|
||
* Since: 2.70
|
||
*/
|
||
|
||
/**
|
||
* GPowerProfileMonitorInterface:
|
||
* @g_iface: The parent interface.
|
||
*
|
||
* The virtual function table for #GPowerProfileMonitor.
|
||
*
|
||
* Since: 2.70
|
||
*/
|
||
|
||
G_DEFINE_INTERFACE_WITH_CODE (GPowerProfileMonitor, g_power_profile_monitor, G_TYPE_OBJECT,
|
||
g_type_interface_add_prerequisite (g_define_type_id, G_TYPE_INITABLE))
|
||
|
||
|
||
/**
|
||
* g_power_profile_monitor_dup_default:
|
||
*
|
||
* Gets a reference to the default #GPowerProfileMonitor for the system.
|
||
*
|
||
* Returns: (not nullable) (transfer full): a new reference to the default #GPowerProfileMonitor
|
||
*
|
||
* Since: 2.70
|
||
*/
|
||
GPowerProfileMonitor *
|
||
g_power_profile_monitor_dup_default (void)
|
||
{
|
||
return g_object_ref (_g_io_module_get_default (G_POWER_PROFILE_MONITOR_EXTENSION_POINT_NAME,
|
||
"GIO_USE_POWER_PROFILE_MONITOR",
|
||
NULL));
|
||
}
|
||
|
||
/**
|
||
* g_power_profile_monitor_get_power_saver_enabled:
|
||
* @monitor: a #GPowerProfileMonitor
|
||
*
|
||
* Gets whether the system is in “Power Saver” mode.
|
||
*
|
||
* You are expected to listen to the
|
||
* #GPowerProfileMonitor::notify::power-saver-enabled signal to know when the profile has
|
||
* changed.
|
||
*
|
||
* Returns: Whether the system is in “Power Saver” mode.
|
||
*
|
||
* Since: 2.70
|
||
*/
|
||
gboolean
|
||
g_power_profile_monitor_get_power_saver_enabled (GPowerProfileMonitor *monitor)
|
||
{
|
||
gboolean enabled;
|
||
g_object_get (monitor, "power-saver-enabled", &enabled, NULL);
|
||
return enabled;
|
||
}
|
||
|
||
static void
|
||
g_power_profile_monitor_default_init (GPowerProfileMonitorInterface *iface)
|
||
{
|
||
/**
|
||
* GPowerProfileMonitor:power-saver-enabled:
|
||
*
|
||
* Whether “Power Saver” mode is enabled on the system.
|
||
*
|
||
* Since: 2.70
|
||
*/
|
||
g_object_interface_install_property (iface,
|
||
g_param_spec_boolean ("power-saver-enabled", NULL, NULL,
|
||
FALSE,
|
||
G_PARAM_READABLE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY));
|
||
}
|