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// Copyright 2015 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <chromeos/dbus/dbus_service_watcher.h>
#include <base/bind.h>
namespace chromeos {
namespace dbus_utils {
DBusServiceWatcher::DBusServiceWatcher(
scoped_refptr<dbus::Bus> bus,
const std::string& connection_name,
const base::Closure& on_connection_vanish)
: bus_{bus},
connection_name_{connection_name},
on_connection_vanish_{on_connection_vanish} {
monitoring_callback_ = base::Bind(
&DBusServiceWatcher::OnServiceOwnerChange, weak_factory_.GetWeakPtr());
// Register to listen, and then request the current owner;
bus_->ListenForServiceOwnerChange(connection_name_, monitoring_callback_);
bus_->GetServiceOwner(connection_name_, monitoring_callback_);
}
DBusServiceWatcher::~DBusServiceWatcher() {
bus_->UnlistenForServiceOwnerChange(
connection_name_, monitoring_callback_);
}
void DBusServiceWatcher::OnServiceOwnerChange(
const std::string& service_owner) {
if (service_owner.empty()) {
on_connection_vanish_.Run();
}
}
} // namespace dbus_utils
} // namespace chromeos
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