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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
/* Information:
* This class implements a mechanism to lock a users installation directory,
* which is necessesary because instances of staroffice could be running on
* different hosts while using the same directory thus causing data
* inconsistency.
* When an existing lock is detected, the user will be asked whether he wants
* to continue anyway, thus removing the lock and replacing it with a new one
*
* ideas:
* - store information about user and host and time in the lockfile and display
* these when asking whether to remove the lockfile.
* - periodically check the lockfile and warn the user when it gets replaced
*
*/
#include "sal/types.h"
#include "rtl/string.hxx"
#include "rtl/ustring.hxx"
#include "dp_misc_api.hxx"
#define LOCKFILE_SUFFIX OUString( "/.lock" )
#define LOCKFILE_GROUP OString( "Lockdata" )
#define LOCKFILE_USERKEY OString( "User" )
#define LOCKFILE_HOSTKEY OString( "Host" )
#define LOCKFILE_STAMPKEY OString( "Stamp" )
#define LOCKFILE_TIMEKEY OString( "Time" )
#define LOCKFILE_IPCKEY OString( "IPCServer" )
namespace desktop {
class Lockfile;
bool Lockfile_execWarning( Lockfile * that );
class DESKTOP_DEPLOYMENTMISC_DLLPUBLIC Lockfile
{
public:
// contructs a new lockfile onject
Lockfile( bool bIPCserver = true );
// separating GUI code:
typedef bool (* fpExecWarning)( Lockfile * that );
// checks the lockfile, asks user when lockfile is
// found (iff gui) and returns false when we may not continue
sal_Bool check( fpExecWarning execWarning );
// removes the lockfile
~Lockfile(void);
private:
bool m_bIPCserver;
// full qualified name (file://-url) of the lockfile
OUString m_aLockname;
// flag whether the d'tor should delete the lock
sal_Bool m_bRemove;
sal_Bool m_bIsLocked;
// ID
OUString m_aId;
OUString m_aDate;
// access to data in file
void syncToFile(void) const;
sal_Bool isStale(void) const;
friend bool Lockfile_execWarning( Lockfile * that );
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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