1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4*cdf0e10cSrcweir * 5*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 6*cdf0e10cSrcweir * 7*cdf0e10cSrcweir * OpenOffice.org - a multi-platform office productivity suite 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * This file is part of OpenOffice.org. 10*cdf0e10cSrcweir * 11*cdf0e10cSrcweir * OpenOffice.org is free software: you can redistribute it and/or modify 12*cdf0e10cSrcweir * it under the terms of the GNU Lesser General Public License version 3 13*cdf0e10cSrcweir * only, as published by the Free Software Foundation. 14*cdf0e10cSrcweir * 15*cdf0e10cSrcweir * OpenOffice.org is distributed in the hope that it will be useful, 16*cdf0e10cSrcweir * but WITHOUT ANY WARRANTY; without even the implied warranty of 17*cdf0e10cSrcweir * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18*cdf0e10cSrcweir * GNU Lesser General Public License version 3 for more details 19*cdf0e10cSrcweir * (a copy is included in the LICENSE file that accompanied this code). 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * You should have received a copy of the GNU Lesser General Public License 22*cdf0e10cSrcweir * version 3 along with OpenOffice.org. If not, see 23*cdf0e10cSrcweir * <http://www.openoffice.org/license.html> 24*cdf0e10cSrcweir * for a copy of the LGPLv3 License. 25*cdf0e10cSrcweir * 26*cdf0e10cSrcweir ************************************************************************/ 27*cdf0e10cSrcweir 28*cdf0e10cSrcweir /* Information: 29*cdf0e10cSrcweir * This class implements a mechanism to lock a users installation directory, 30*cdf0e10cSrcweir * which is necessesary because instances of staroffice could be running on 31*cdf0e10cSrcweir * different hosts while using the same directory thus causing data 32*cdf0e10cSrcweir * inconsistency. 33*cdf0e10cSrcweir * When an existing lock is detected, the user will be asked whether he wants 34*cdf0e10cSrcweir * to continue anyway, thus removing the lock and replacing it with a new one 35*cdf0e10cSrcweir * 36*cdf0e10cSrcweir * ideas: 37*cdf0e10cSrcweir * - store information about user and host and time in the lockfile and display 38*cdf0e10cSrcweir * these when asking whether to remove the lockfile. 39*cdf0e10cSrcweir * - periodically check the lockfile and warn the user when it gets replaced 40*cdf0e10cSrcweir * 41*cdf0e10cSrcweir */ 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir #include "sal/types.h" 44*cdf0e10cSrcweir #include "rtl/ustring.hxx" 45*cdf0e10cSrcweir 46*cdf0e10cSrcweir class ByteString; 47*cdf0e10cSrcweir 48*cdf0e10cSrcweir namespace desktop { 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir class Lockfile; 51*cdf0e10cSrcweir bool Lockfile_execWarning( Lockfile * that ); 52*cdf0e10cSrcweir 53*cdf0e10cSrcweir class Lockfile 54*cdf0e10cSrcweir { 55*cdf0e10cSrcweir public: 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir // contructs a new lockfile onject 58*cdf0e10cSrcweir Lockfile( bool bIPCserver = true ); 59*cdf0e10cSrcweir 60*cdf0e10cSrcweir // separating GUI code: 61*cdf0e10cSrcweir typedef bool (* fpExecWarning)( Lockfile * that ); 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir // checks the lockfile, asks user when lockfile is 64*cdf0e10cSrcweir // found (iff gui) and returns false when we may not continue 65*cdf0e10cSrcweir sal_Bool check( fpExecWarning execWarning ); 66*cdf0e10cSrcweir 67*cdf0e10cSrcweir // removes the lockfile. should only be called in exceptional situations 68*cdf0e10cSrcweir void clean(void); 69*cdf0e10cSrcweir 70*cdf0e10cSrcweir // removes the lockfile 71*cdf0e10cSrcweir ~Lockfile(void); 72*cdf0e10cSrcweir 73*cdf0e10cSrcweir private: 74*cdf0e10cSrcweir // data in lockfile 75*cdf0e10cSrcweir static const ByteString Group(); 76*cdf0e10cSrcweir static const ByteString Userkey(); 77*cdf0e10cSrcweir static const ByteString Hostkey(); 78*cdf0e10cSrcweir static const ByteString Stampkey(); 79*cdf0e10cSrcweir static const ByteString Timekey(); 80*cdf0e10cSrcweir static const ByteString IPCkey(); 81*cdf0e10cSrcweir // lockfilename 82*cdf0e10cSrcweir static const rtl::OUString Suffix(); 83*cdf0e10cSrcweir bool m_bIPCserver; 84*cdf0e10cSrcweir // full qualified name (file://-url) of the lockfile 85*cdf0e10cSrcweir rtl::OUString m_aLockname; 86*cdf0e10cSrcweir // flag whether the d'tor should delete the lock 87*cdf0e10cSrcweir sal_Bool m_bRemove; 88*cdf0e10cSrcweir sal_Bool m_bIsLocked; 89*cdf0e10cSrcweir // ID 90*cdf0e10cSrcweir rtl::OUString m_aId; 91*cdf0e10cSrcweir rtl::OUString m_aDate; 92*cdf0e10cSrcweir // access to data in file 93*cdf0e10cSrcweir void syncToFile(void) const; 94*cdf0e10cSrcweir sal_Bool isStale(void) const; 95*cdf0e10cSrcweir friend bool Lockfile_execWarning( Lockfile * that ); 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir }; 98*cdf0e10cSrcweir 99*cdf0e10cSrcweir } 100