diagnostics_controller.h revision 7dbb3d5cf0c15f500944d211057644d6a2f37371 
1// Copyright 2013 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_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_
6#define CHROME_BROWSER_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_
7
8#include "base/memory/scoped_ptr.h"
9#include "base/memory/singleton.h"
10
11class CommandLine;
12
13namespace diagnostics {
14
15class DiagnosticsWriter;
16class DiagnosticsModel;
17
18class DiagnosticsController {
19 public:
20  static DiagnosticsController* GetInstance();
21
22  // Entry point for the diagnostics mode. Returns zero if able to run
23  // diagnostics successfully, regardless of the results of the diagnostics.
24  int Run(const CommandLine& command_line, DiagnosticsWriter* writer);
25
26  // Returns a model with the results that have accumulated.  They can then be
27  // queried for their attributes for human consumption later.
28  const DiagnosticsModel& GetResults() const;
29
30  // Returns true if there are any results available.
31  bool HasResults();
32
33  // Clears any results that have accumulated. After calling this, do not call
34  // GetResults until after Run is called again.
35  void ClearResults();
36
37 private:
38  friend struct DefaultSingletonTraits<DiagnosticsController>;
39
40  DiagnosticsController();
41  ~DiagnosticsController();
42
43  scoped_ptr<DiagnosticsModel> model_;
44  DiagnosticsWriter* writer_;
45
46  DISALLOW_COPY_AND_ASSIGN(DiagnosticsController);
47};
48
49}  // namespace diagnostics
50
51#endif  // CHROME_BROWSER_DIAGNOSTICS_DIAGNOSTICS_CONTROLLER_H_
52