117 lines
3.8 KiB
C++
117 lines
3.8 KiB
C++
//
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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/daemon.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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#if USE_BINDER
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#include <binderwrapper/binder_wrapper.h>
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#endif // USE_BINDER
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#if USE_OMAHA
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#include "update_engine/real_system_state.h"
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#else // !USE_OMAHA
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#include "update_engine/daemon_state_android.h"
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#endif // USE_OMAHA
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namespace chromeos_update_engine {
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int UpdateEngineDaemon::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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#if USE_BINDER
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android::BinderWrapper::Create();
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binder_watcher_.Init();
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#endif // USE_BINDER
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#if USE_OMAHA
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// Initialize update engine global state but continue if something fails.
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// TODO(deymo): Move the daemon_state_ initialization to a factory method
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// avoiding the explicit re-usage of the |bus| instance, shared between
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// D-Bus service and D-Bus client calls.
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RealSystemState* real_system_state = new RealSystemState();
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daemon_state_.reset(real_system_state);
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LOG_IF(ERROR, !real_system_state->Initialize())
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<< "Failed to initialize system state.";
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#else // !USE_OMAHA
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DaemonStateAndroid* daemon_state_android = new DaemonStateAndroid();
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daemon_state_.reset(daemon_state_android);
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LOG_IF(ERROR, !daemon_state_android->Initialize())
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<< "Failed to initialize system state.";
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#endif // USE_OMAHA
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#if USE_BINDER
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// Create the Binder Service.
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#if USE_OMAHA
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binder_service_ = new BinderUpdateEngineBrilloService{real_system_state};
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#else // !USE_OMAHA
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binder_service_ = new BinderUpdateEngineAndroidService{
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daemon_state_android->service_delegate()};
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#endif // USE_OMAHA
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auto binder_wrapper = android::BinderWrapper::Get();
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if (!binder_wrapper->RegisterService(binder_service_->ServiceName(),
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binder_service_)) {
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LOG(ERROR) << "Failed to register binder service.";
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}
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daemon_state_->AddObserver(binder_service_.get());
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#endif // USE_BINDER
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#if USE_DBUS
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// Create the DBus service.
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dbus_adaptor_.reset(new UpdateEngineAdaptor(real_system_state));
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daemon_state_->AddObserver(dbus_adaptor_.get());
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dbus_adaptor_->RegisterAsync(base::Bind(&UpdateEngineDaemon::OnDBusRegistered,
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base::Unretained(this)));
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LOG(INFO) << "Waiting for DBus object to be registered.";
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#else // !USE_DBUS
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daemon_state_->StartUpdater();
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#endif // USE_DBUS
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return EX_OK;
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}
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#if USE_DBUS
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void UpdateEngineDaemon::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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daemon_state_->StartUpdater();
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}
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#endif // USE_DBUS
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} // namespace chromeos_update_engine
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