| // Copyright 2013 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 "storage/browser/quota/quota_task.h" |
| |
| #include <algorithm> |
| #include <functional> |
| |
| #include "base/bind.h" |
| #include "base/location.h" |
| #include "base/single_thread_task_runner.h" |
| #include "base/stl_util.h" |
| #include "base/threading/thread_task_runner_handle.h" |
| |
| using base::TaskRunner; |
| |
| namespace storage { |
| |
| // QuotaTask --------------------------------------------------------------- |
| |
| QuotaTask::~QuotaTask() = default; |
| |
| void QuotaTask::Start() { |
| DCHECK(observer_ != nullptr); |
| observer()->RegisterTask(this); |
| Run(); |
| } |
| |
| QuotaTask::QuotaTask(QuotaTaskObserver* observer) |
| : observer_(observer), |
| original_task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| delete_scheduled_(false) { |
| DCHECK(observer != nullptr); |
| } |
| |
| void QuotaTask::CallCompleted() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| if (observer_) { |
| observer_->UnregisterTask(this); |
| Completed(); |
| } |
| } |
| |
| void QuotaTask::Abort() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| observer_ = nullptr; |
| Aborted(); |
| } |
| |
| void QuotaTask::DeleteSoon() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| if (delete_scheduled_) |
| return; |
| delete_scheduled_ = true; |
| base::ThreadTaskRunnerHandle::Get()->DeleteSoon(FROM_HERE, this); |
| } |
| |
| // QuotaTaskObserver ------------------------------------------------------- |
| |
| QuotaTaskObserver::~QuotaTaskObserver() { |
| for (auto* task : running_quota_tasks_) |
| task->Abort(); |
| } |
| |
| QuotaTaskObserver::QuotaTaskObserver() = default; |
| |
| void QuotaTaskObserver::RegisterTask(QuotaTask* task) { |
| running_quota_tasks_.insert(task); |
| } |
| |
| void QuotaTaskObserver::UnregisterTask(QuotaTask* task) { |
| DCHECK(base::Contains(running_quota_tasks_, task)); |
| running_quota_tasks_.erase(task); |
| } |
| |
| } // namespace storage |