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// 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.
#ifndef COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_MARK_OPERATION_DONE_TASK_H_
#define COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_MARK_OPERATION_DONE_TASK_H_
#include <string>
#include <vector>
#include "base/memory/weak_ptr.h"
#include "components/offline_pages/core/prefetch/prefetch_types.h"
#include "components/offline_pages/core/task.h"
namespace offline_pages {
class PrefetchDispatcher;
class PrefetchStore;
// Event Handler Task that responds to GCM messages and marks the corresponding
// operation as finished in the DB. This task then requests action tasks if any
// urls were affected.
class MarkOperationDoneTask : public Task {
public:
// StoreResult represents the overall status of executing the command in the
// SQL store.
enum class StoreResult {
UNFINISHED = 0,
UPDATED,
STORE_ERROR,
};
// TaskResult includes both a StoreResult and the number of rows that were
// affected by a successful SQL command.
using TaskResult = std::pair<StoreResult, int64_t>;
// TODO(dewittj): Schedule action tasks via "SchedulePipelineProcessing" if we
// are in a background task.
MarkOperationDoneTask(PrefetchDispatcher* prefetch_dispatcher,
PrefetchStore* prefetch_store,
const std::string& operation_name);
~MarkOperationDoneTask() override;
// Task implementation.
void Run() override;
StoreResult store_result() const { return std::get<0>(result_); }
// Number of rows changed, or -1 if there was a store error (or not yet
// finished).
int64_t change_count() const { return std::get<1>(result_); }
private:
void MarkOperationDone(int updated_entry_count);
void Done(TaskResult result);
PrefetchDispatcher* prefetch_dispatcher_;
PrefetchStore* prefetch_store_;
std::string operation_name_;
TaskResult result_ = std::make_pair(StoreResult::UNFINISHED, -1);
base::WeakPtrFactory<MarkOperationDoneTask> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(MarkOperationDoneTask);
};
} // namespace offline_pages
#endif // COMPONENTS_OFFLINE_PAGES_CORE_PREFETCH_MARK_OPERATION_DONE_TASK_H_
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