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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 | /*
This file is part of libkabc.
Copyright (c) 2003 Cornelius Schumacher <schumacher@kde.org>
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 KABC_LOCKNULL_H
#define KABC_LOCKNULL_H
#include "lock.h"
#include <QtCore/QString>
namespace KABC {
/**
This class provides a lock without actually locking. It can be constructed in
two ways: One that let all locks succeed and one that let all locks fail.
*/
class KABC_EXPORT_DEPRECATED LockNull : public Lock
{
public:
/**
Creates an instance of the null lock.
@param allowAccess if @c true all calls to lock() will "succeed",
if @c false all calls to lock() will "fail"
*/
LockNull( bool allowAccess );
~LockNull();
bool lock();
bool unlock();
QString error() const;
private:
class Private;
Private *const d;
};
}
#endif
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