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56 lines
1.7 KiB
56 lines
1.7 KiB
//
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// Copyright (C) 2016 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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#include "update_engine/cros/dbus_connection.h"
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#include <base/time/time.h>
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namespace chromeos_update_engine {
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namespace {
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const int kDBusSystemMaxWaitSeconds = 2 * 60;
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DBusConnection* dbus_connection_singleton = nullptr;
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} // namespace
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DBusConnection::DBusConnection() {
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// We wait for the D-Bus connection for up two minutes to avoid re-spawning
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// the daemon too fast causing thrashing if dbus-daemon is not running.
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bus_ = dbus_connection_.ConnectWithTimeout(
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base::TimeDelta::FromSeconds(kDBusSystemMaxWaitSeconds));
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if (!bus_) {
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// TODO(deymo): Make it possible to run update_engine even if dbus-daemon
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// is not running or constantly crashing.
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LOG(FATAL) << "Failed to initialize DBus, aborting.";
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}
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CHECK(bus_->SetUpAsyncOperations());
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}
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const scoped_refptr<dbus::Bus>& DBusConnection::GetDBus() {
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CHECK(bus_);
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return bus_;
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}
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DBusConnection* DBusConnection::Get() {
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if (!dbus_connection_singleton)
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dbus_connection_singleton = new DBusConnection();
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return dbus_connection_singleton;
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}
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} // namespace chromeos_update_engine
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