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// Copyright (C) 2016 The Android Open Source Project
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdint.h>
#include <memory>
#include <string>
#include <vector>
#include <base/time/time.h>
#include "update_engine/client_library/include/update_engine/update_status.h"
#include "update_engine/common/action_processor.h"
#include "update_engine/common/boot_control_interface.h"
#include "update_engine/common/hardware_interface.h"
#include "update_engine/common/prefs_interface.h"
#include "update_engine/daemon_state_interface.h"
#include "update_engine/network_selector_interface.h"
#include "update_engine/payload_consumer/download_action.h"
#include "update_engine/payload_consumer/postinstall_runner_action.h"
#include "update_engine/service_delegate_android_interface.h"
#include "update_engine/service_observer_interface.h"
namespace chromeos_update_engine {
class UpdateAttempterAndroid
: public ServiceDelegateAndroidInterface,
public ActionProcessorDelegate,
public DownloadActionDelegate,
public PostinstallRunnerAction::DelegateInterface {
using UpdateStatus = update_engine::UpdateStatus;
UpdateAttempterAndroid(DaemonStateInterface* daemon_state,
PrefsInterface* prefs,
BootControlInterface* boot_control_,
HardwareInterface* hardware_);
~UpdateAttempterAndroid() override;
// Further initialization to be done post construction.
void Init();
// ServiceDelegateAndroidInterface overrides.
bool ApplyPayload(const std::string& payload_url,
int64_t payload_offset,
int64_t payload_size,
const std::vector<std::string>& key_value_pair_headers,
brillo::ErrorPtr* error) override;
bool SuspendUpdate(brillo::ErrorPtr* error) override;
bool ResumeUpdate(brillo::ErrorPtr* error) override;
bool CancelUpdate(brillo::ErrorPtr* error) override;
bool ResetStatus(brillo::ErrorPtr* error) override;
// ActionProcessorDelegate methods:
void ProcessingDone(const ActionProcessor* processor,
ErrorCode code) override;
void ProcessingStopped(const ActionProcessor* processor) override;
void ActionCompleted(ActionProcessor* processor,
AbstractAction* action,
ErrorCode code) override;
// DownloadActionDelegate overrides.
void BytesReceived(uint64_t bytes_progressed,
uint64_t bytes_received,
uint64_t total) override;
bool ShouldCancel(ErrorCode* cancel_reason) override;
void DownloadComplete() override;
// PostinstallRunnerAction::DelegateInterface
void ProgressUpdate(double progress) override;
// Asynchronously marks the current slot as successful if needed. If already
// marked as good, CompleteUpdateBootFlags() is called starting the action
// processor.
void UpdateBootFlags();
// Called when the boot flags have been updated.
void CompleteUpdateBootFlags(bool success);
// Schedules an event loop callback to start the action processor. This is
// scheduled asynchronously to unblock the event loop.
void ScheduleProcessingStart();
// Notifies an update request completed with the given error |code| to all
// observers.
void TerminateUpdateAndNotify(ErrorCode error_code);
// Sets the status to the given |status| and notifies a status update to
// all observers.
void SetStatusAndNotify(UpdateStatus status);
// Helper method to construct the sequence of actions to be performed for
// applying an update from the given |url|.
void BuildUpdateActions(const std::string& url);
// Sets up the download parameters based on the update requested on the
// |install_plan_|.
void SetupDownload();
// Writes to the processing completed marker. Does nothing if
// |update_completed_marker_| is empty.
bool WriteUpdateCompletedMarker();
// Returns whether an update was completed in the current boot.
bool UpdateCompletedOnThisBoot();
DaemonStateInterface* daemon_state_;
// DaemonStateAndroid pointers.
PrefsInterface* prefs_;
BootControlInterface* boot_control_;
HardwareInterface* hardware_;
// Last status notification timestamp used for throttling. Use monotonic
// TimeTicks to ensure that notifications are sent even if the system clock is
// set back in the middle of an update.
base::TimeTicks last_notify_time_;
// The list of actions and action processor that runs them asynchronously.
// Only used when |ongoing_update_| is true.
std::vector<std::shared_ptr<AbstractAction>> actions_;
std::unique_ptr<ActionProcessor> processor_;
// Pointer to the DownloadAction in the actions_ vector.
std::shared_ptr<DownloadAction> download_action_;
// Whether there is an ongoing update. This implies that an update was started
// but not finished yet. This value will be true even if the update was
// suspended.
bool ongoing_update_{false};
// The InstallPlan used during the ongoing update.
InstallPlan install_plan_;
// For status:
UpdateStatus status_{UpdateStatus::IDLE};
double download_progress_{0.0};
// The offset in the payload file where the CrAU part starts.
int64_t base_offset_{0};
// Only direct proxy supported.
DirectProxyResolver proxy_resolver_;
// Helper class to select the network to use during the update.
std::unique_ptr<NetworkSelectorInterface> network_selector_;
// Whether we have marked the current slot as good. This step is required
// before applying an update to the other slot.
bool updated_boot_flags_ = false;
} // namespace chromeos_update_engine