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mutter-performance-source/src/backends/meta-idle-monitor.c
Jonas Ådahl 2f4a68c8c3 Clean up include macros mess 
The order and way include macros were structured was chaotic, with no
real common thread between files. Try to tidy up the mess with some
common scheme, to make things look less messy.
2018-11-06 17:17:36 +01:00

518 lines
15 KiB
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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/*
* Copyright 2013 Red Hat, Inc.
*
* 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, see <http://www.gnu.org/licenses/>.
*
* Adapted from gnome-session/gnome-session/gs-idle-monitor.c and
* from gnome-desktop/libgnome-desktop/gnome-idle-monitor.c
*/
/**
* SECTION:idle-monitor
* @title: MetaIdleMonitor
* @short_description: Mutter idle counter (similar to X's IDLETIME)
*/
#include "config.h"
#include <string.h>
#include <X11/Xlib.h>
#include <X11/extensions/sync.h>
#include "backends/gsm-inhibitor-flag.h"
#include "backends/meta-backend-private.h"
#include "backends/meta-idle-monitor-private.h"
#include "backends/meta-idle-monitor-dbus.h"
#include "clutter/clutter.h"
#include "meta/main.h"
#include "meta/meta-idle-monitor.h"
#include "meta/util.h"
G_STATIC_ASSERT(sizeof(unsigned long) == sizeof(gpointer));
enum
{
PROP_0,
PROP_DEVICE_ID,
PROP_LAST,
};
static GParamSpec *obj_props[PROP_LAST];
G_DEFINE_TYPE (MetaIdleMonitor, meta_idle_monitor, G_TYPE_OBJECT)
void
_meta_idle_monitor_watch_fire (MetaIdleMonitorWatch *watch)
{
MetaIdleMonitor *monitor;
guint id;
gboolean is_user_active_watch;
monitor = watch->monitor;
g_object_ref (monitor);
if (watch->idle_source_id)
{
g_source_remove (watch->idle_source_id);
watch->idle_source_id = 0;
}
id = watch->id;
is_user_active_watch = (watch->timeout_msec == 0);
if (watch->callback)
watch->callback (monitor, id, watch->user_data);
if (is_user_active_watch)
meta_idle_monitor_remove_watch (monitor, id);
g_object_unref (monitor);
}
static void
meta_idle_monitor_dispose (GObject *object)
{
MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
g_clear_pointer (&monitor->watches, g_hash_table_destroy);
g_clear_object (&monitor->session_proxy);
G_OBJECT_CLASS (meta_idle_monitor_parent_class)->dispose (object);
}
static void
meta_idle_monitor_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
switch (prop_id)
{
case PROP_DEVICE_ID:
g_value_set_int (value, monitor->device_id);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_idle_monitor_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
switch (prop_id)
{
case PROP_DEVICE_ID:
monitor->device_id = g_value_get_int (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
meta_idle_monitor_class_init (MetaIdleMonitorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = meta_idle_monitor_dispose;
object_class->get_property = meta_idle_monitor_get_property;
object_class->set_property = meta_idle_monitor_set_property;
/**
* MetaIdleMonitor:device_id:
*
* The device to listen to idletime on.
*/
obj_props[PROP_DEVICE_ID] =
g_param_spec_int ("device-id",
"Device ID",
"The device to listen to idletime on",
0, 255, 0,
G_PARAM_STATIC_STRINGS | G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY);
g_object_class_install_property (object_class, PROP_DEVICE_ID, obj_props[PROP_DEVICE_ID]);
}
static void
free_watch (gpointer data)
{
MetaIdleMonitorWatch *watch = (MetaIdleMonitorWatch *) data;
MetaIdleMonitor *monitor = watch->monitor;
g_object_ref (monitor);
if (watch->idle_source_id)
{
g_source_remove (watch->idle_source_id);
watch->idle_source_id = 0;
}
if (watch->notify != NULL)
watch->notify (watch->user_data);
if (watch->timeout_source != NULL)
g_source_destroy (watch->timeout_source);
g_object_unref (monitor);
g_slice_free (MetaIdleMonitorWatch, watch);
}
static void
update_inhibited_watch (gpointer key,
gpointer value,
gpointer user_data)
{
MetaIdleMonitor *monitor = user_data;
MetaIdleMonitorWatch *watch = value;
if (!watch->timeout_source)
return;
if (monitor->inhibited)
{
g_source_set_ready_time (watch->timeout_source, -1);
}
else
{
g_source_set_ready_time (watch->timeout_source,
monitor->last_event_time +
watch->timeout_msec * 1000);
}
}
static void
update_inhibited (MetaIdleMonitor *monitor,
gboolean inhibited)
{
if (inhibited == monitor->inhibited)
return;
g_hash_table_foreach (monitor->watches,
update_inhibited_watch,
monitor);
}
static void
meta_idle_monitor_inhibited_actions_changed (GDBusProxy *session,
GVariant *changed,
char **invalidated,
gpointer user_data)
{
MetaIdleMonitor *monitor = user_data;
GVariant *v;
v = g_variant_lookup_value (changed, "InhibitedActions", G_VARIANT_TYPE_UINT32);
if (v)
{
gboolean inhibited;
inhibited = !!(g_variant_get_uint32 (v) & GSM_INHIBITOR_FLAG_IDLE);
g_variant_unref (v);
if (!inhibited)
monitor->last_event_time = g_get_monotonic_time ();
update_inhibited (monitor, inhibited);
}
}
static void
meta_idle_monitor_init (MetaIdleMonitor *monitor)
{
GVariant *v;
monitor->watches = g_hash_table_new_full (NULL, NULL, NULL, free_watch);
monitor->last_event_time = g_get_monotonic_time ();
/* Monitor inhibitors */
monitor->session_proxy =
g_dbus_proxy_new_for_bus_sync (G_BUS_TYPE_SESSION,
G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS |
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START,
NULL,
"org.gnome.SessionManager",
"/org/gnome/SessionManager",
"org.gnome.SessionManager",
NULL,
NULL);
if (!monitor->session_proxy)
return;
g_signal_connect (monitor->session_proxy, "g-properties-changed",
G_CALLBACK (meta_idle_monitor_inhibited_actions_changed),
monitor);
v = g_dbus_proxy_get_cached_property (monitor->session_proxy,
"InhibitedActions");
if (v)
{
monitor->inhibited = !!(g_variant_get_uint32 (v) &
GSM_INHIBITOR_FLAG_IDLE);
g_variant_unref (v);
}
}
/**
* meta_idle_monitor_get_core:
*
* Returns: (transfer none): the #MetaIdleMonitor that tracks the server-global
* idletime for all devices. To track device-specific idletime,
* use meta_idle_monitor_get_for_device().
*/
MetaIdleMonitor *
meta_idle_monitor_get_core (void)
{
MetaBackend *backend = meta_get_backend ();
return meta_backend_get_idle_monitor (backend, 0);
}
/**
* meta_idle_monitor_get_for_device:
* @device_id: the device to get the idle time for.
*
* Returns: (transfer none): a new #MetaIdleMonitor that tracks the
* device-specific idletime for @device. To track server-global idletime
* for all devices, use meta_idle_monitor_get_core().
*/
MetaIdleMonitor *
meta_idle_monitor_get_for_device (int device_id)
{
MetaBackend *backend = meta_get_backend ();
return meta_backend_get_idle_monitor (backend, device_id);
}
static guint32
get_next_watch_serial (void)
{
static guint32 serial = 0;
g_atomic_int_inc (&serial);
return serial;
}
static gboolean
idle_monitor_dispatch_timeout (GSource *source,
GSourceFunc callback,
gpointer user_data)
{
MetaIdleMonitorWatch *watch = (MetaIdleMonitorWatch *) user_data;
_meta_idle_monitor_watch_fire (watch);
g_source_set_ready_time (watch->timeout_source, -1);
return TRUE;
}
static GSourceFuncs idle_monitor_source_funcs = {
.prepare = NULL,
.check = NULL,
.dispatch = idle_monitor_dispatch_timeout,
.finalize = NULL,
};
static MetaIdleMonitorWatch *
make_watch (MetaIdleMonitor *monitor,
guint64 timeout_msec,
MetaIdleMonitorWatchFunc callback,
gpointer user_data,
GDestroyNotify notify)
{
MetaIdleMonitorWatch *watch;
watch = g_slice_new0 (MetaIdleMonitorWatch);
watch->monitor = monitor;
watch->id = get_next_watch_serial ();
watch->callback = callback;
watch->user_data = user_data;
watch->notify = notify;
watch->timeout_msec = timeout_msec;
if (timeout_msec != 0)
{
GSource *source = g_source_new (&idle_monitor_source_funcs,
sizeof (GSource));
g_source_set_callback (source, NULL, watch, NULL);
if (!monitor->inhibited)
{
g_source_set_ready_time (source,
monitor->last_event_time +
timeout_msec * 1000);
}
g_source_attach (source, NULL);
g_source_unref (source);
watch->timeout_source = source;
}
g_hash_table_insert (monitor->watches,
GUINT_TO_POINTER (watch->id),
watch);
return watch;
}
/**
* meta_idle_monitor_add_idle_watch:
* @monitor: A #MetaIdleMonitor
* @interval_msec: The idletime interval, in milliseconds
* @callback: (nullable): The callback to call when the user has
* accumulated @interval_msec milliseconds of idle time.
* @user_data: (nullable): The user data to pass to the callback
* @notify: A #GDestroyNotify
*
* Returns: a watch id
*
* Adds a watch for a specific idle time. The callback will be called
* when the user has accumulated @interval_msec milliseconds of idle time.
* This function will return an ID that can either be passed to
* meta_idle_monitor_remove_watch(), or can be used to tell idle time
* watches apart if you have more than one.
*
* Also note that this function will only care about positive transitions
* (user's idle time exceeding a certain time). If you want to know about
* when the user has become active, use
* meta_idle_monitor_add_user_active_watch().
*/
guint
meta_idle_monitor_add_idle_watch (MetaIdleMonitor *monitor,
guint64 interval_msec,
MetaIdleMonitorWatchFunc callback,
gpointer user_data,
GDestroyNotify notify)
{
MetaIdleMonitorWatch *watch;
g_return_val_if_fail (META_IS_IDLE_MONITOR (monitor), 0);
g_return_val_if_fail (interval_msec > 0, 0);
watch = make_watch (monitor,
interval_msec,
callback,
user_data,
notify);
return watch->id;
}
/**
* meta_idle_monitor_add_user_active_watch:
* @monitor: A #MetaIdleMonitor
* @callback: (nullable): The callback to call when the user is
* active again.
* @user_data: (nullable): The user data to pass to the callback
* @notify: A #GDestroyNotify
*
* Returns: a watch id
*
* Add a one-time watch to know when the user is active again.
* Note that this watch is one-time and will de-activate after the
* function is called, for efficiency purposes. It's most convenient
* to call this when an idle watch, as added by
* meta_idle_monitor_add_idle_watch(), has triggered.
*/
guint
meta_idle_monitor_add_user_active_watch (MetaIdleMonitor *monitor,
MetaIdleMonitorWatchFunc callback,
gpointer user_data,
GDestroyNotify notify)
{
MetaIdleMonitorWatch *watch;
g_return_val_if_fail (META_IS_IDLE_MONITOR (monitor), 0);
watch = make_watch (monitor,
0,
callback,
user_data,
notify);
return watch->id;
}
/**
* meta_idle_monitor_remove_watch:
* @monitor: A #MetaIdleMonitor
* @id: A watch ID
*
* Removes an idle time watcher, previously added by
* meta_idle_monitor_add_idle_watch() or
* meta_idle_monitor_add_user_active_watch().
*/
void
meta_idle_monitor_remove_watch (MetaIdleMonitor *monitor,
guint id)
{
g_return_if_fail (META_IS_IDLE_MONITOR (monitor));
g_object_ref (monitor);
g_hash_table_remove (monitor->watches,
GUINT_TO_POINTER (id));
g_object_unref (monitor);
}
/**
* meta_idle_monitor_get_idletime:
* @monitor: A #MetaIdleMonitor
*
* Returns: The current idle time, in milliseconds, or -1 for not supported
*/
gint64
meta_idle_monitor_get_idletime (MetaIdleMonitor *monitor)
{
return (g_get_monotonic_time () - monitor->last_event_time) / 1000;
}
void
meta_idle_monitor_reset_idletime (MetaIdleMonitor *monitor)
{
GList *node, *watch_ids;
monitor->last_event_time = g_get_monotonic_time ();
watch_ids = g_hash_table_get_keys (monitor->watches);
for (node = watch_ids; node != NULL; node = node->next)
{
guint watch_id = GPOINTER_TO_UINT (node->data);
MetaIdleMonitorWatch *watch;
watch = g_hash_table_lookup (monitor->watches,
GUINT_TO_POINTER (watch_id));
if (!watch)
continue;
if (watch->timeout_msec == 0)
{
_meta_idle_monitor_watch_fire ((MetaIdleMonitorWatch *) watch);
}
else
{
g_source_set_ready_time (watch->timeout_source,
monitor->last_event_time +
watch->timeout_msec * 1000);
}
}
g_list_free (watch_ids);
}
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