| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| /* 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/ustring.hxx" |
| |
| class ByteString; |
| |
| namespace desktop { |
| |
| class Lockfile; |
| bool Lockfile_execWarning( Lockfile * that ); |
| |
| class 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. should only be called in exceptional situations |
| void clean(void); |
| |
| // removes the lockfile |
| ~Lockfile(void); |
| |
| private: |
| // data in lockfile |
| static const ByteString Group(); |
| static const ByteString Userkey(); |
| static const ByteString Hostkey(); |
| static const ByteString Stampkey(); |
| static const ByteString Timekey(); |
| static const ByteString IPCkey(); |
| // lockfilename |
| static const rtl::OUString Suffix(); |
| bool m_bIPCserver; |
| // full qualified name (file://-url) of the lockfile |
| rtl::OUString m_aLockname; |
| // flag whether the d'tor should delete the lock |
| sal_Bool m_bRemove; |
| sal_Bool m_bIsLocked; |
| // ID |
| rtl::OUString m_aId; |
| rtl::OUString m_aDate; |
| // access to data in file |
| void syncToFile(void) const; |
| sal_Bool isStale(void) const; |
| friend bool Lockfile_execWarning( Lockfile * that ); |
| |
| }; |
| |
| } |