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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* (C) Copyright 2022 Google, Inc.
* Author: Rukun Mao <rmao@google.com>
* Original code from ./mm-sleep-monitor-systemd.c
*/
#include "config.h"
#include <errno.h>
#include <string.h>
#include <sys/stat.h>
#include <glib/gi18n.h>
#include <gio/gio.h>
#include "mm-log-object.h"
#include "mm-utils.h"
#include "mm-sleep-monitor.h"
#define PD_NAME "org.chromium.PowerManager"
#define PD_PATH "/org/chromium/PowerManager"
#define PD_INTERFACE "org.chromium.PowerManager"
struct _MMSleepMonitor {
GObject parent_instance;
GDBusProxy *pd_proxy;
};
struct _MMSleepMonitorClass {
GObjectClass parent_class;
void (*sleeping) (MMSleepMonitor *monitor);
void (*resuming) (MMSleepMonitor *monitor);
};
enum {
SLEEPING,
RESUMING,
LAST_SIGNAL,
};
static guint signals[LAST_SIGNAL] = {0};
static void log_object_iface_init (MMLogObjectInterface *iface);
G_DEFINE_TYPE_EXTENDED (MMSleepMonitor, mm_sleep_monitor, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (MM_TYPE_LOG_OBJECT, log_object_iface_init))
/*****************************************************************************/
static gchar *
log_object_build_id (MMLogObject *_self)
{
return g_strdup ("sleep-monitor-powerd");
}
/********************************************************************/
static void
signal_cb (GDBusProxy *proxy,
const gchar *sendername,
const gchar *signalname,
GVariant *args,
gpointer data)
{
MMSleepMonitor *self = data;
if (proxy == self->pd_proxy) {
if (strcmp (signalname, "SuspendImminent") == 0) {
mm_obj_info (self, "system suspend signal from powerd");
g_signal_emit (self, signals[SLEEPING], 0);
} else if (strcmp (signalname, "SuspendDone") == 0) {
mm_obj_info (self, "system resume signal from powerd");
g_signal_emit (self, signals[RESUMING], 0);
}
}
}
static void
on_pd_proxy_acquired (GObject *object,
GAsyncResult *res,
MMSleepMonitor *self)
{
GError *error = NULL;
self->pd_proxy = g_dbus_proxy_new_for_bus_finish (res, &error);
if (!self->pd_proxy) {
mm_obj_warn (self, "failed to acquire powerd proxy: %s", error->message);
g_clear_error (&error);
return;
}
g_signal_connect (self->pd_proxy, "g-signal", G_CALLBACK (signal_cb), self);
}
static void
mm_sleep_monitor_init (MMSleepMonitor *self)
{
g_dbus_proxy_new_for_bus (G_BUS_TYPE_SYSTEM,
G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START |
G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
NULL,
PD_NAME, PD_PATH, PD_INTERFACE,
NULL,
(GAsyncReadyCallback) on_pd_proxy_acquired, self);
}
static void
finalize (GObject *object)
{
MMSleepMonitor *self = MM_SLEEP_MONITOR (object);
if (self->pd_proxy)
g_object_unref (self->pd_proxy);
if (G_OBJECT_CLASS (mm_sleep_monitor_parent_class)->finalize != NULL)
G_OBJECT_CLASS (mm_sleep_monitor_parent_class)->finalize (object);
}
static void
log_object_iface_init (MMLogObjectInterface *iface)
{
iface->build_id = log_object_build_id;
}
static void
mm_sleep_monitor_class_init (MMSleepMonitorClass *klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = finalize;
signals[SLEEPING] = g_signal_new (MM_SLEEP_MONITOR_SLEEPING,
MM_TYPE_SLEEP_MONITOR,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MMSleepMonitorClass, sleeping),
NULL, /* accumulator */
NULL, /* accumulator data */
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[RESUMING] = g_signal_new (MM_SLEEP_MONITOR_RESUMING,
MM_TYPE_SLEEP_MONITOR,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MMSleepMonitorClass, resuming),
NULL, /* accumulator */
NULL, /* accumulator data */
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
MM_DEFINE_SINGLETON_GETTER (MMSleepMonitor, mm_sleep_monitor_get, MM_TYPE_SLEEP_MONITOR);
/* ---------------------------------------------------------------------------------------------------- */
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