| // 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/message_loop/message_loop.h" |
| #include "base/thread_task_runner_handle.h" |
| |
| using base::TaskRunner; |
| |
| namespace storage { |
| |
| // QuotaTask --------------------------------------------------------------- |
| |
| QuotaTask::~QuotaTask() { |
| } |
| |
| void QuotaTask::Start() { |
| DCHECK(observer_); |
| observer()->RegisterTask(this); |
| Run(); |
| } |
| |
| QuotaTask::QuotaTask(QuotaTaskObserver* observer) |
| : observer_(observer), |
| original_task_runner_(base::ThreadTaskRunnerHandle::Get()), |
| delete_scheduled_(false) { |
| } |
| |
| void QuotaTask::CallCompleted() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| if (observer_) { |
| observer_->UnregisterTask(this); |
| Completed(); |
| } |
| } |
| |
| void QuotaTask::Abort() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| observer_ = NULL; |
| Aborted(); |
| } |
| |
| void QuotaTask::DeleteSoon() { |
| DCHECK(original_task_runner_->BelongsToCurrentThread()); |
| if (delete_scheduled_) |
| return; |
| delete_scheduled_ = true; |
| base::MessageLoop::current()->DeleteSoon(FROM_HERE, this); |
| } |
| |
| // QuotaTaskObserver ------------------------------------------------------- |
| |
| QuotaTaskObserver::~QuotaTaskObserver() { |
| std::for_each(running_quota_tasks_.begin(), |
| running_quota_tasks_.end(), |
| std::mem_fun(&QuotaTask::Abort)); |
| } |
| |
| QuotaTaskObserver::QuotaTaskObserver() { |
| } |
| |
| void QuotaTaskObserver::RegisterTask(QuotaTask* task) { |
| running_quota_tasks_.insert(task); |
| } |
| |
| void QuotaTaskObserver::UnregisterTask(QuotaTask* task) { |
| DCHECK(running_quota_tasks_.find(task) != running_quota_tasks_.end()); |
| running_quota_tasks_.erase(task); |
| } |
| |
| } // namespace storage |