syslogs_library.h revision 513209b27ff55e2841eac0e4120199c23acce758 
1// Copyright (c) 2010 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef CHROME_BROWSER_CHROMEOS_CROS_SYSLOGS_LIBRARY_H_
6#define CHROME_BROWSER_CHROMEOS_CROS_SYSLOGS_LIBRARY_H_
7#pragma once
8
9#include "base/singleton.h"
10#include "chrome/browser/cancelable_request.h"
11#include "cros/chromeos_syslogs.h"
12
13class CancelableRequestConsumerBase;
14
15namespace chromeos {
16
17// This interface defines interaction with the ChromeOS syslogs APIs.
18class SyslogsLibrary : public CancelableRequestProvider {
19 public:
20  typedef Callback2<LogDictionaryType*,
21                    std::string*>::Type ReadCompleteCallback;
22
23  SyslogsLibrary() {}
24  virtual ~SyslogsLibrary() {}
25
26  // Request system logs. Read happens on the FILE thread and callback is
27  // called on the thread this is called from (via ForwardResult).
28  // Logs are owned by callback function (use delete when done with them).
29  // Returns the request handle. Call CancelRequest(Handle) to cancel
30  // the request before the callback gets called.
31  virtual Handle RequestSyslogs(
32      bool compress_logs, bool feedback_context,
33      CancelableRequestConsumerBase* consumer,
34      ReadCompleteCallback* callback) = 0;
35
36  // Factory function, creates a new instance and returns ownership.
37  // For normal usage, access the singleton via CrosLibrary::Get().
38  static SyslogsLibrary* GetImpl(bool stub);
39};
40
41}  // namespace chromeos
42
43#endif  // CHROME_BROWSER_CHROMEOS_CROS_SYSLOGS_LIBRARY_H_
44