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80 lines
2.5 KiB
80 lines
2.5 KiB
4 months ago
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// Copyright (C) 2015 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/daemon_chromeos.h"
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#include <sysexits.h>
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#include <base/bind.h>
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#include <base/location.h>
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#include "update_engine/cros/real_system_state.h"
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using brillo::Daemon;
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using std::unique_ptr;
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namespace chromeos_update_engine {
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unique_ptr<DaemonBase> DaemonBase::CreateInstance() {
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return std::make_unique<DaemonChromeOS>();
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}
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int DaemonChromeOS::OnInit() {
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// Register the |subprocess_| singleton with this Daemon as the signal
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// handler.
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subprocess_.Init(this);
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int exit_code = Daemon::OnInit();
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if (exit_code != EX_OK)
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return exit_code;
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// Initialize update engine global state.
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// TODO(deymo): Move the initialization to a factory method avoiding the
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// explicit re-usage of the |bus| instance, shared between D-Bus service and
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// D-Bus client calls.
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RealSystemState::SetInstance(&system_state_);
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// Create the DBus service.
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dbus_adaptor_.reset(new UpdateEngineAdaptor());
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SystemState::Get()->update_attempter()->AddObserver(dbus_adaptor_.get());
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dbus_adaptor_->RegisterAsync(
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base::Bind(&DaemonChromeOS::OnDBusRegistered, base::Unretained(this)));
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LOG(INFO) << "Waiting for DBus object to be registered.";
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return EX_OK;
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}
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void DaemonChromeOS::OnDBusRegistered(bool succeeded) {
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if (!succeeded) {
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LOG(ERROR) << "Registering the UpdateEngineAdaptor";
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QuitWithExitCode(1);
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return;
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}
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// Take ownership of the service now that everything is initialized. We need
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// to this now and not before to avoid exposing a well known DBus service
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// path that doesn't have the service it is supposed to implement.
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if (!dbus_adaptor_->RequestOwnership()) {
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LOG(ERROR) << "Unable to take ownership of the DBus service, is there "
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<< "other update_engine daemon running?";
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QuitWithExitCode(1);
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return;
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}
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SystemState::Get()->update_attempter()->StartUpdater();
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}
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} // namespace chromeos_update_engine
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