| // Copyright 2017 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. |
| |
| #include "content/browser/background_fetch/storage/database_task.h" |
| |
| #include <utility> |
| |
| #include "content/browser/background_fetch/background_fetch_data_manager.h" |
| #include "content/browser/background_fetch/background_fetch_data_manager_observer.h" |
| #include "content/browser/background_fetch/storage/database_helpers.h" |
| #include "content/public/browser/browser_thread.h" |
| |
| namespace content { |
| |
| namespace background_fetch { |
| |
| DatabaseTaskHost::DatabaseTaskHost() : weak_factory_(this) {} |
| |
| DatabaseTaskHost::~DatabaseTaskHost() = default; |
| |
| base::WeakPtr<DatabaseTaskHost> DatabaseTaskHost::GetWeakPtr() { |
| return weak_factory_.GetWeakPtr(); |
| } |
| |
| DatabaseTask::DatabaseTask(DatabaseTaskHost* host) : host_(host) { |
| DCHECK(host_); |
| // Hold a reference to the CacheStorageManager. |
| cache_manager_ = data_manager()->cache_manager(); |
| } |
| |
| DatabaseTask::~DatabaseTask() = default; |
| |
| void DatabaseTask::Finished() { |
| DCHECK_CURRENTLY_ON(BrowserThread::IO); |
| // Post the OnTaskFinished callback to the same thread, to allow the the |
| // DatabaseTask to finish execution before deallocating it. |
| base::ThreadTaskRunnerHandle::Get()->PostTask( |
| FROM_HERE, base::BindOnce(&DatabaseTaskHost::OnTaskFinished, |
| host_->GetWeakPtr(), this)); |
| } |
| |
| void DatabaseTask::OnTaskFinished(DatabaseTask* finished_subtask) { |
| size_t erased = active_subtasks_.erase(finished_subtask); |
| DCHECK_EQ(erased, 1u); |
| } |
| |
| void DatabaseTask::AddDatabaseTask(std::unique_ptr<DatabaseTask> task) { |
| DCHECK_EQ(task->host_, data_manager()); |
| data_manager()->AddDatabaseTask(std::move(task)); |
| } |
| |
| void DatabaseTask::AddSubTask(std::unique_ptr<DatabaseTask> task) { |
| DCHECK_EQ(task->host_, this); |
| auto insert_result = active_subtasks_.emplace(task.get(), std::move(task)); |
| insert_result.first->second->Start(); // Start the subtask. |
| } |
| |
| void DatabaseTask::AbandonFetches(int64_t service_worker_registration_id) { |
| for (auto& observer : data_manager()->observers()) |
| observer.OnServiceWorkerDatabaseCorrupted(service_worker_registration_id); |
| } |
| |
| ServiceWorkerContextWrapper* DatabaseTask::service_worker_context() { |
| DCHECK(data_manager()->service_worker_context()); |
| return data_manager()->service_worker_context(); |
| } |
| |
| CacheStorageManager* DatabaseTask::cache_manager() { |
| DCHECK(cache_manager_); |
| return cache_manager_.get(); |
| } |
| |
| std::set<std::string>& DatabaseTask::ref_counted_unique_ids() { |
| return data_manager()->ref_counted_unique_ids(); |
| } |
| |
| ChromeBlobStorageContext* DatabaseTask::blob_storage_context() { |
| return data_manager()->blob_storage_context(); |
| } |
| |
| BackgroundFetchDataManager* DatabaseTask::data_manager() { |
| return host_->data_manager(); |
| } |
| |
| } // namespace background_fetch |
| |
| } // namespace content |