summaryrefslogtreecommitdiffstats
path: root/kresources/egroupware/synchronizer.h
blob: 97270e31816a99ecfe4e0619d1b2cadd8a93c35a (plain)
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
59
60
61
62
63
64
65
66
67
68
69
70
71
72
/*
    This file is part of tdepim.

    Copyright (c) 2005 Tobias Koenig <[email protected]>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#ifndef SYNCHRONIZER_H
#define SYNCHRONIZER_H

#include <tqobject.h>

/**
  A small helper class which blocks an asynchronous operation (e.g. a KIO request)
  so that it can be used in a synchronous environment.

  Example:

    ...

    Synchronizer mSynchronizer;

    ...

    job = KIO::file_copy( url, file, -1, true );
    connect( job, TQT_SIGNAL( result( KIO::Job * ) ),
             TQT_SLOT( slotResult( KIO::Job * ) ) );

    mSynchronizer.start(); // will block here until the slot was called
    ...


    void slotResult( KIO::Job* )
    {
      mSynchronizer.stop();
    }
 */
class Synchronizer
{
  public:
    Synchronizer();

    /**
      Blocks the execution until @ref stop() is called.
     */
    void start();

    /**
      Unblocks the execution.
     */
    void stop();

  private:
    bool mBlocked;
};

#endif