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- // Copyright 2015 The Chromium Authors. All rights reserved.
- // Use of this source code is governed by a BSD-style license that can be
- // found in the LICENSE file.
- #ifndef COMPONENTS_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_
- #define COMPONENTS_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_
- #include <memory>
- #include <set>
- #include <string>
- #include <vector>
- #include "base/callback_forward.h"
- #include "base/containers/circular_deque.h"
- #include "base/memory/ref_counted.h"
- #include "base/observer_list.h"
- #include "base/threading/thread_checker.h"
- #include "components/update_client/crx_downloader.h"
- #include "components/update_client/update_checker.h"
- #include "components/update_client/update_client.h"
- namespace update_client {
- class Configurator;
- class PingManager;
- class Task;
- class UpdateEngine;
- enum class Error;
- class UpdateClientImpl : public UpdateClient {
- public:
- UpdateClientImpl(scoped_refptr<Configurator> config,
- scoped_refptr<PingManager> ping_manager,
- UpdateChecker::Factory update_checker_factory);
- UpdateClientImpl(const UpdateClientImpl&) = delete;
- UpdateClientImpl& operator=(const UpdateClientImpl&) = delete;
- // Overrides for UpdateClient.
- void AddObserver(Observer* observer) override;
- void RemoveObserver(Observer* observer) override;
- base::RepeatingClosure Install(
- const std::string& id,
- CrxDataCallback crx_data_callback,
- CrxStateChangeCallback crx_state_change_callback,
- Callback callback) override;
- void Update(const std::vector<std::string>& ids,
- CrxDataCallback crx_data_callback,
- CrxStateChangeCallback crx_state_change_callback,
- bool is_foreground,
- Callback callback) override;
- bool GetCrxUpdateState(const std::string& id,
- CrxUpdateItem* update_item) const override;
- bool IsUpdating(const std::string& id) const override;
- void Stop() override;
- void SendUninstallPing(const CrxComponent& crx_component,
- int reason,
- Callback callback) override;
- private:
- ~UpdateClientImpl() override;
- void RunTask(scoped_refptr<Task> task);
- void OnTaskComplete(Callback callback, scoped_refptr<Task> task, Error error);
- void NotifyObservers(Observer::Events event, const std::string& id);
- base::ThreadChecker thread_checker_;
- // True if Stop method has been called.
- bool is_stopped_ = false;
- scoped_refptr<Configurator> config_;
- // Contains the tasks that are pending. In the current implementation,
- // only update tasks (background tasks) are queued up. These tasks are
- // pending while they are in this queue. They have not been picked up yet
- // by the update engine.
- base::circular_deque<scoped_refptr<Task>> task_queue_;
- // Contains all tasks in progress. These are the tasks that the update engine
- // is executing at one moment. Install tasks are run concurrently, update
- // tasks are always serialized, and update tasks are queued up if install
- // tasks are running. In addition, concurrent install tasks for the same id
- // are not allowed.
- std::set<scoped_refptr<Task>> tasks_;
- scoped_refptr<PingManager> ping_manager_;
- scoped_refptr<UpdateEngine> update_engine_;
- base::ObserverList<Observer>::Unchecked observer_list_;
- };
- } // namespace update_client
- #endif // COMPONENTS_UPDATE_CLIENT_UPDATE_CLIENT_INTERNAL_H_
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