dbaccess/source/ui/misc/moduledbu.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "moduledbu.hxx"
  21
  22 #include <tools/resmgr.hxx>
  23 #include <svl/solar.hrc>
  24 #include <tools/debug.hxx>
  25
  26 #define ENTER_MOD_METHOD()  \
  27     ::osl::MutexGuard aGuard(s_aMutex); \
  28     ensureImpl()
  29
  30 namespace dbaui
  31 {
  32
  33 // OModuleImpl
  34 /** implementation for <type>OModule</type>. not threadsafe, has to be guarded by its owner
  35 */
  36 class OModuleImpl
  37 {
  38     ResMgr* m_pResources;
  39
  40 public:
  41     /// ctor
  42     OModuleImpl();
  43     ~OModuleImpl();
  44
  45     /// get the manager for the resources of the module
  46     ResMgr* getResManager();
  47 };
  48
  49 OModuleImpl::OModuleImpl()
  50     :m_pResources(NULL)
  51 {
  52
  53 }
  54
  55 OModuleImpl::~OModuleImpl()
  56 {
  57     if (m_pResources)
  58         delete m_pResources;
  59
  60 }
  61
  62 ResMgr* OModuleImpl::getResManager()
  63 {
  64     // note that this method is not threadsafe, which counts for the whole class !
  65
  66     if (!m_pResources)
  67     {
  68         // create a manager with a fixed prefix
  69         m_pResources = ResMgr::CreateResMgr("dbu");
  70     }
  71     return m_pResources;
  72 }
  73
  74 // OModule
  75 ::osl::Mutex    OModule::s_aMutex;
  76 sal_Int32       OModule::s_nClients = 0;
  77 OModuleImpl*    OModule::s_pImpl = NULL;
  78 ResMgr* OModule::getResManager()
  79 {
  80     ENTER_MOD_METHOD();
  81     return s_pImpl->getResManager();
  82 }
  83
  84 void OModule::registerClient()
  85 {
  86     ::osl::MutexGuard aGuard(s_aMutex);
  87     ++s_nClients;
  88 }
  89
  90 void OModule::revokeClient()
  91 {
  92     ::osl::MutexGuard aGuard(s_aMutex);
  93     if (!--s_nClients && s_pImpl)
  94     {
  95         delete s_pImpl;
  96         s_pImpl = NULL;
  97     }
  98 }
  99
 100 void OModule::ensureImpl()
 101 {
 102     if (s_pImpl)
 103         return;
 104     s_pImpl = new OModuleImpl();
 105 }
 106
 107 }   // namespace dbaui
 108
 109 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */