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// Copyright 2013 The Chromium Authors
// 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/containers/contains.h"
#include "base/functional/bind.h"
#include "base/location.h"
#include "base/task/single_thread_task_runner.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::SingleThreadTaskRunner::GetCurrentDefault()),
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::SingleThreadTaskRunner::GetCurrentDefault()->DeleteSoon(FROM_HERE,
this);
}
// QuotaTaskObserver -------------------------------------------------------
QuotaTaskObserver::~QuotaTaskObserver() {
for (QuotaTask* 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
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