lock.h

/*
    This file is part of libtdeabc.
 
    Copyright (c) 2001,2003 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_LOCK_H
#define KABC_LOCK_H
 
#include <tqstring.h>
#include <tqobject.h>
 
#include <tdelibs_export.h>
 
namespace TDEABC {
 
class KABC_EXPORT Lock : public TQObject
{
    TQ_OBJECT
  public:
    Lock( const TQString &identifier );
 
    ~Lock();
 
    virtual bool lock();
    
    virtual bool unlock();
 
    virtual TQString error() const;
 
    TQString lockFileName() const;
 
    static bool readLockFile( const TQString &filename, int &pid, TQString &app );
    static bool writeLockFile( const TQString &filename );
 
    static TQString locksDir();
 
  signals:
    void locked();
    void unlocked();
 
  private:
    TQString mIdentifier;
    
    TQString mLockUniqueName;
 
    TQString mError;
 
    class Private;
    Private *d;
};
 
}
 
#endif