File: outdated_indicator.hh

package info (click to toggle)
monotone 0.48-3
  • links: PTS
  • area: main
  • in suites: squeeze
  • size: 20,096 kB
  • ctags: 8,077
  • sloc: cpp: 81,000; sh: 6,402; perl: 1,241; lisp: 1,045; makefile: 655; python: 566; sql: 112; ansic: 52
file content (58 lines) | stat: -rw-r--r-- 1,616 bytes parent folder | download | duplicates (4)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// Copyright (C) 2007 Timothy Brownawell <tbrownaw@gmail.com>
//
// This program is made available under the GNU GPL version 2.0 or
// greater. See the accompanying file COPYING for details.
//
// This program is distributed WITHOUT ANY WARRANTY; without even the
// implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE.

#ifndef __OUTDATED_NOTIFIER_HH__
#define __OUTDATED_NOTIFIER_HH__

// Allow clients to find out when something changes.
// The 'something' has an outdated_indicator_factory,
// and calls note_change() when changes are made.
// The client is provided with an outdated_indicator made
// from that factory, which will become outdated after
// further changes are made to the something.

// The default indicator is always outdated.

// When a factory is destroyed, all indicators made from
// that factory become outdated.

#include <boost/shared_ptr.hpp>

class outdated_indicator_factory_impl;

class outdated_indicator
{
  boost::shared_ptr<outdated_indicator_factory_impl> parent;
  unsigned int when;
public:
  outdated_indicator();
  explicit outdated_indicator(boost::shared_ptr<outdated_indicator_factory_impl> p);
  bool outdated() const;
};


class outdated_indicator_factory
{
  boost::shared_ptr<outdated_indicator_factory_impl> impl;
public:
  outdated_indicator_factory();
  ~outdated_indicator_factory();
  outdated_indicator get_indicator();
  void note_change();
};

#endif

// Local Variables:
// mode: C++
// fill-column: 76
// c-file-style: "gnu"
// indent-tabs-mode: nil
// End:
// vim: et:sw=2:sts=2:ts=2:cino=>2s,{s,\:s,+s,t0,g0,^-2,e-2,n-2,p2s,(0,=s: