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// Copyright 2014 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 CHROME_BROWSER_SYNC_FILE_SYSTEM_TASK_LOGGER_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_TASK_LOGGER_H_
#include <deque>
#include <string>
#include <vector>
#include "base/macros.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "base/time/time.h"
namespace sync_file_system {
class TaskLogger : public base::SupportsWeakPtr<TaskLogger> {
public:
struct TaskLog {
int log_id;
base::TimeTicks start_time;
base::TimeTicks end_time;
std::string task_description;
std::string result_description;
std::vector<std::string> details;
TaskLog();
~TaskLog();
};
typedef std::deque<TaskLog*> LogList;
class Observer {
public:
virtual void OnLogRecorded(const TaskLog& task_log) = 0;
protected:
Observer() {}
virtual ~Observer() {}
private:
DISALLOW_COPY_AND_ASSIGN(Observer);
};
TaskLogger();
~TaskLogger();
void RecordLog(scoped_ptr<TaskLog> log);
void ClearLog();
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
const LogList& GetLog() const;
private:
std::deque<TaskLog*> log_history_;
base::ObserverList<Observer> observers_;
DISALLOW_COPY_AND_ASSIGN(TaskLogger);
};
} // namespace sync_file_system
#endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_TASK_LOGGER_H_
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