[mutter/wayland] Add a new helper for tracking user idle activity
- From: Giovanni Campagna <gcampagna src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter/wayland] Add a new helper for tracking user idle activity
- Date: Fri, 23 Aug 2013 14:34:29 +0000 (UTC)
commit 2c1b20e15fab5c3ac9d16d9fe872d3c660310710
Author: Giovanni Campagna <gcampagn redhat com>
Date: Wed Aug 14 12:50:48 2013 +0200
Add a new helper for tracking user idle activity
When running as a wayland compositor, we can't use the xserver's
IDLETIME, because that's updated only in response to X events.
But we have all the events ourselves, so we can just run the timer
in process.
https://bugzilla.gnome.org/show_bug.cgi?id=706005
src/Makefile.am | 3 +
src/core/display.c | 3 +
src/core/meta-idle-monitor-private.h | 29 ++
src/core/meta-idle-monitor.c | 598 ++++++++++++++++++++++++++++++++++
src/meta/meta-idle-monitor.h | 62 ++++
5 files changed, 695 insertions(+), 0 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 8c1b393..68b1d18 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -126,6 +126,8 @@ libmutter_la_SOURCES = \
core/main.c \
core/meta-cursor-tracker.c \
core/meta-cursor-tracker-private.h \
+ core/meta-idle-monitor.c \
+ core/meta-idle-monitor-private.h \
core/mutter-Xatomtype.h \
core/place.c \
core/place.h \
@@ -213,6 +215,7 @@ libmutterinclude_base_headers = \
meta/meta-background-group.h \
meta/meta-background.h \
meta/meta-cursor-tracker.h \
+ meta/meta-idle-monitor.h \
meta/meta-plugin.h \
meta/meta-shaped-texture.h \
meta/meta-shadow-factory.h \
diff --git a/src/core/display.c b/src/core/display.c
index 66061c6..0bf16e0 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -53,6 +53,7 @@
#include <X11/Xatom.h>
#include <X11/cursorfont.h>
#include "mutter-enum-types.h"
+#include "meta-idle-monitor-private.h"
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
@@ -2307,6 +2308,8 @@ meta_display_handle_event (MetaDisplay *display,
meta_window_update_sync_request_counter (alarm_window, new_counter_value);
filter_out_event = TRUE; /* GTK doesn't want to see this really */
}
+
+ meta_idle_monitor_handle_xevent_all (event);
}
#endif /* HAVE_XSYNC */
diff --git a/src/core/meta-idle-monitor-private.h b/src/core/meta-idle-monitor-private.h
new file mode 100644
index 0000000..39f3c8e
--- /dev/null
+++ b/src/core/meta-idle-monitor-private.h
@@ -0,0 +1,29 @@
+/* -*- 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Adapted from gnome-session/gnome-session/gs-idle-monitor.c and
+ * from gnome-desktop/libgnome-desktop/gnome-idle-monitor.c
+ */
+
+#include <meta/meta-idle-monitor.h>
+
+void meta_idle_monitor_handle_xevent_all (XEvent *xevent);
+
+
diff --git a/src/core/meta-idle-monitor.c b/src/core/meta-idle-monitor.c
new file mode 100644
index 0000000..eace00b
--- /dev/null
+++ b/src/core/meta-idle-monitor.c
@@ -0,0 +1,598 @@
+/* -*- 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * 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 <clutter/clutter.h>
+#include <X11/Xlib.h>
+#include <X11/extensions/sync.h>
+
+#include <meta/util.h>
+#include <meta/main.h>
+#include <meta/meta-idle-monitor.h>
+#include "display-private.h"
+#include "meta-idle-monitor-private.h"
+
+G_STATIC_ASSERT(sizeof(unsigned long) == sizeof(gpointer));
+
+struct _MetaIdleMonitor
+{
+ GObject parent_instance;
+
+ GHashTable *watches;
+ GHashTable *alarms;
+ int device_id;
+
+ /* X11 implementation */
+ Display *display;
+ int sync_event_base;
+ XSyncCounter counter;
+ XSyncAlarm user_active_alarm;
+};
+
+struct _MetaIdleMonitorClass
+{
+ GObjectClass parent_class;
+};
+
+typedef struct
+{
+ MetaIdleMonitor *monitor;
+ guint id;
+ MetaIdleMonitorWatchFunc callback;
+ gpointer user_data;
+ GDestroyNotify notify;
+ guint64 timeout_msec;
+
+ /* x11 */
+ XSyncAlarm xalarm;
+} MetaIdleMonitorWatch;
+
+enum
+{
+ PROP_0,
+ PROP_DEVICE_ID,
+ PROP_LAST,
+};
+
+static GParamSpec *obj_props[PROP_LAST];
+
+G_DEFINE_TYPE (MetaIdleMonitor, meta_idle_monitor, G_TYPE_OBJECT)
+
+static MetaIdleMonitor *device_monitors[256];
+static int device_id_max;
+
+static gint64
+_xsyncvalue_to_int64 (XSyncValue value)
+{
+ return ((guint64) XSyncValueHigh32 (value)) << 32
+ | (guint64) XSyncValueLow32 (value);
+}
+
+#define GUINT64_TO_XSYNCVALUE(value, ret) XSyncIntsToValue (ret, (value) & 0xFFFFFFFF, ((guint64)(value)) >>
32)
+
+static void
+fire_watch (MetaIdleMonitorWatch *watch)
+{
+ MetaIdleMonitor *monitor;
+
+ monitor = watch->monitor;
+ g_object_ref (monitor);
+
+ if (watch->callback)
+ {
+ watch->callback (watch->monitor,
+ watch->id,
+ watch->user_data);
+ }
+
+ if (watch->timeout_msec == 0)
+ meta_idle_monitor_remove_watch (watch->monitor, watch->id);
+
+ g_object_unref (monitor);
+}
+
+static XSyncAlarm
+_xsync_alarm_set (MetaIdleMonitor *monitor,
+ XSyncTestType test_type,
+ guint64 interval,
+ gboolean want_events)
+{
+ XSyncAlarmAttributes attr;
+ XSyncValue delta;
+ guint flags;
+
+ flags = XSyncCACounter | XSyncCAValueType | XSyncCATestType |
+ XSyncCAValue | XSyncCADelta | XSyncCAEvents;
+
+ XSyncIntToValue (&delta, 0);
+ attr.trigger.counter = monitor->counter;
+ attr.trigger.value_type = XSyncAbsolute;
+ attr.delta = delta;
+ attr.events = want_events;
+
+ GUINT64_TO_XSYNCVALUE (interval, &attr.trigger.wait_value);
+ attr.trigger.test_type = test_type;
+ return XSyncCreateAlarm (monitor->display, flags, &attr);
+}
+
+static void
+ensure_alarm_rescheduled (Display *dpy,
+ XSyncAlarm alarm)
+{
+ XSyncAlarmAttributes attr;
+
+ /* Some versions of Xorg have an issue where alarms aren't
+ * always rescheduled. Calling XSyncChangeAlarm, even
+ * without any attributes, will reschedule the alarm. */
+ XSyncChangeAlarm (dpy, alarm, 0, &attr);
+}
+
+static void
+set_alarm_enabled (Display *dpy,
+ XSyncAlarm alarm,
+ gboolean enabled)
+{
+ XSyncAlarmAttributes attr;
+ attr.events = enabled;
+ XSyncChangeAlarm (dpy, alarm, XSyncCAEvents, &attr);
+}
+
+static void
+check_x11_watch (gpointer data,
+ gpointer user_data)
+{
+ MetaIdleMonitorWatch *watch = data;
+ XSyncAlarm alarm = (XSyncAlarm) user_data;
+
+ if (watch->xalarm != alarm)
+ return;
+
+ fire_watch (watch);
+}
+
+static void
+meta_idle_monitor_handle_xevent (MetaIdleMonitor *monitor,
+ XSyncAlarmNotifyEvent *alarm_event)
+{
+ XSyncAlarm alarm;
+ GList *watches;
+ gboolean has_alarm;
+
+ if (alarm_event->state != XSyncAlarmActive)
+ return;
+
+ alarm = alarm_event->alarm;
+
+ has_alarm = FALSE;
+
+ if (alarm == monitor->user_active_alarm)
+ {
+ set_alarm_enabled (monitor->display,
+ alarm,
+ FALSE);
+ has_alarm = TRUE;
+ }
+ else if (g_hash_table_contains (monitor->alarms, (gpointer) alarm))
+ {
+ ensure_alarm_rescheduled (monitor->display,
+ alarm);
+ has_alarm = TRUE;
+ }
+
+ if (has_alarm)
+ {
+ watches = g_hash_table_get_values (monitor->watches);
+
+ g_list_foreach (watches, check_x11_watch, (gpointer) alarm);
+ g_list_free (watches);
+ }
+}
+
+void
+meta_idle_monitor_handle_xevent_all (XEvent *xevent)
+{
+ int i;
+
+ for (i = 0; i < device_id_max; i++)
+ if (device_monitors[i])
+ meta_idle_monitor_handle_xevent (device_monitors[i], (XSyncAlarmNotifyEvent*)xevent);
+}
+
+static char *
+counter_name_for_device (int device_id)
+{
+ if (device_id > 0)
+ return g_strdup_printf ("DEVICEIDLETIME %d", device_id);
+
+ return g_strdup ("IDLETIME");
+}
+
+static XSyncCounter
+find_idletime_counter (MetaIdleMonitor *monitor)
+{
+ int i;
+ int ncounters;
+ XSyncSystemCounter *counters;
+ XSyncCounter counter = None;
+ char *counter_name;
+
+ counter_name = counter_name_for_device (monitor->device_id);
+ counters = XSyncListSystemCounters (monitor->display, &ncounters);
+ for (i = 0; i < ncounters; i++)
+ {
+ if (counters[i].name != NULL && strcmp (counters[i].name, counter_name) == 0)
+ {
+ counter = counters[i].counter;
+ break;
+ }
+ }
+ XSyncFreeSystemCounterList (counters);
+ g_free (counter_name);
+
+ return counter;
+}
+
+static guint32
+get_next_watch_serial (void)
+{
+ static guint32 serial = 0;
+ g_atomic_int_inc (&serial);
+ return serial;
+}
+
+static void
+idle_monitor_watch_free (MetaIdleMonitorWatch *watch)
+{
+ MetaIdleMonitor *monitor;
+
+ if (watch == NULL)
+ return;
+
+ monitor = watch->monitor;
+
+ if (watch->notify != NULL)
+ watch->notify (watch->user_data);
+
+ if (watch->xalarm != monitor->user_active_alarm &&
+ watch->xalarm != None)
+ {
+ XSyncDestroyAlarm (monitor->display, watch->xalarm);
+ g_hash_table_remove (monitor->alarms, (gpointer) watch->xalarm);
+ }
+
+ g_slice_free (MetaIdleMonitorWatch, watch);
+}
+
+static void
+init_xsync (MetaIdleMonitor *monitor)
+{
+ monitor->counter = find_idletime_counter (monitor);
+ /* IDLETIME counter not found? */
+ if (monitor->counter == None)
+ {
+ meta_warning ("IDLETIME counter not found\n");
+ return;
+ }
+
+ monitor->user_active_alarm = _xsync_alarm_set (monitor, XSyncNegativeTransition, 1, FALSE);
+}
+
+static void
+meta_idle_monitor_dispose (GObject *object)
+{
+ MetaIdleMonitor *monitor;
+
+ monitor = META_IDLE_MONITOR (object);
+
+ g_clear_pointer (&monitor->watches, g_hash_table_destroy);
+ g_clear_pointer (&monitor->alarms, g_hash_table_destroy);
+
+ if (monitor->user_active_alarm != None)
+ {
+ XSyncDestroyAlarm (monitor->display, monitor->user_active_alarm);
+ monitor->user_active_alarm = None;
+ }
+
+ 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_constructed (GObject *object)
+{
+ MetaIdleMonitor *monitor = META_IDLE_MONITOR (object);
+
+ monitor->display = meta_get_display ()->xdisplay;
+ init_xsync (monitor);
+}
+
+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->constructed = meta_idle_monitor_constructed;
+ 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
+meta_idle_monitor_init (MetaIdleMonitor *monitor)
+{
+ monitor->watches = g_hash_table_new_full (NULL,
+ NULL,
+ NULL,
+ (GDestroyNotify)idle_monitor_watch_free);
+
+ monitor->alarms = g_hash_table_new (NULL, NULL);
+}
+
+static void
+ensure_device_monitor (int device_id)
+{
+ if (device_monitors[device_id])
+ return;
+
+ device_monitors[device_id] = g_object_new (META_TYPE_IDLE_MONITOR, "device-id", device_id, NULL);
+ device_id_max = MAX (device_id_max, device_id);
+}
+
+/**
+ * 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)
+{
+ ensure_device_monitor (0);
+ return device_monitors[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)
+{
+ g_return_val_if_fail (device_id > 0 && device_id < 256, NULL);
+
+ ensure_device_monitor (device_id);
+ return device_monitors[device_id];
+}
+
+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)
+ {
+ watch->xalarm = _xsync_alarm_set (monitor, XSyncPositiveTransition, timeout_msec, TRUE);
+
+ g_hash_table_add (monitor->alarms, (gpointer) watch->xalarm);
+ }
+ else
+ {
+ watch->xalarm = monitor->user_active_alarm;
+
+ set_alarm_enabled (monitor->display, monitor->user_active_alarm, TRUE);
+ }
+
+ 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: (allow-none): The callback to call when the user has
+ * accumulated @interval_msec milliseconds of idle time.
+ * @user_data: (allow-none): 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: (allow-none): The callback to call when the user is
+ * active again.
+ * @user_data: (allow-none): 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_hash_table_remove (monitor->watches,
+ GUINT_TO_POINTER (id));
+}
+
+/**
+ * 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)
+{
+ XSyncValue value;
+
+ if (!XSyncQueryCounter (monitor->display, monitor->counter, &value))
+ return -1;
+
+ return _xsyncvalue_to_int64 (value);
+}
diff --git a/src/meta/meta-idle-monitor.h b/src/meta/meta-idle-monitor.h
new file mode 100644
index 0000000..8838273
--- /dev/null
+++ b/src/meta/meta-idle-monitor.h
@@ -0,0 +1,62 @@
+/* -*- 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
+
+#ifndef META_IDLE_MONITOR_H
+#define META_IDLE_MONITOR_H
+
+#include <glib-object.h>
+#include <meta/types.h>
+
+#define META_TYPE_IDLE_MONITOR (meta_idle_monitor_get_type ())
+#define META_IDLE_MONITOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_IDLE_MONITOR,
MetaIdleMonitor))
+#define META_IDLE_MONITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_IDLE_MONITOR,
MetaIdleMonitorClass))
+#define META_IS_IDLE_MONITOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_IDLE_MONITOR))
+#define META_IS_IDLE_MONITOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_IDLE_MONITOR))
+#define META_IDLE_MONITOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_IDLE_MONITOR,
MetaIdleMonitorClass))
+
+typedef struct _MetaIdleMonitor MetaIdleMonitor;
+typedef struct _MetaIdleMonitorClass MetaIdleMonitorClass;
+
+GType meta_idle_monitor_get_type (void);
+
+typedef void (*MetaIdleMonitorWatchFunc) (MetaIdleMonitor *monitor,
+ guint watch_id,
+ gpointer user_data);
+
+MetaIdleMonitor *meta_idle_monitor_get_core (void);
+MetaIdleMonitor *meta_idle_monitor_get_for_device (int device_id);
+
+guint meta_idle_monitor_add_idle_watch (MetaIdleMonitor *monitor,
+ guint64 interval_msec,
+ MetaIdleMonitorWatchFunc callback,
+ gpointer user_data,
+ GDestroyNotify notify);
+
+guint meta_idle_monitor_add_user_active_watch (MetaIdleMonitor *monitor,
+ MetaIdleMonitorWatchFunc callback,
+ gpointer user_data,
+ GDestroyNotify notify);
+
+void meta_idle_monitor_remove_watch (MetaIdleMonitor *monitor,
+ guint id);
+gint64 meta_idle_monitor_get_idletime (MetaIdleMonitor *monitor);
+
+#endif
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