kaddressbook

kablock.h

00001 /*
00002     This file is part of KAddressBook.
00003     Copyright (c) 2003 Tobias Koenig <tokoe@kde.org>
00004 
00005     This program is free software; you can redistribute it and/or modify
00006     it under the terms of the GNU General Public License as published by
00007     the Free Software Foundation; either version 2 of the License, or
00008     (at your option) any later version.
00009 
00010     This program is distributed in the hope that it will be useful,
00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
00013     GNU General Public License for more details.
00014 
00015     You should have received a copy of the GNU General Public License
00016     along with this program; if not, write to the Free Software
00017     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00018 
00019     As a special exception, permission is given to link this program
00020     with any edition of Qt, and distribute the resulting executable,
00021     without including the source code for Qt in the source distribution.
00022 */
00023 
00024 #ifndef KABLOCK_H
00025 #define KABLOCK_H
00026 
00027 namespace KABC {
00028 class AddressBook;
00029 class Resource;
00030 class Ticket;
00031 }
00032 
00033 typedef struct {
00034   KABC::Ticket *ticket;
00035   uint counter;
00036 } LockEntry;
00037 
00038 class KABLock
00039 {
00040   public:
00041     ~KABLock();
00042 
00043     static KABLock *self( KABC::AddressBook *ab );
00044 
00045     bool lock( KABC::Resource* );
00046     bool unlock( KABC::Resource* );
00047 
00048   protected:
00049     KABLock( KABC::AddressBook *ab );
00050 
00051   private:
00052     static KABLock *mSelf;
00053 
00054     QMap<KABC::Resource*, LockEntry> mLocks;
00055     KABC::AddressBook *mAddressBook;
00056 };
00057 
00058 #endif
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