sd/inc/misc/scopelock.hxx

   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 #pragma once
  21
  22 #include <sal/types.h>
  23
  24 namespace sd
  25 {
  26
  27 class ScopeLock
  28 {
  29     friend class ScopeLockGuard;
  30 public:
  31     ScopeLock() : mnLock(0) {}
  32     bool isLocked() const { return mnLock != 0; }
  33 private:
  34     void lock() { mnLock++; }
  35     void unlock() { mnLock--; }
  36
  37     sal_Int32   mnLock;
  38 };
  39
  40 class ScopeLockGuard
  41 {
  42 public:
  43     ScopeLockGuard( ScopeLock& rScopeLock ) : mrScopeLock( rScopeLock ) { mrScopeLock.lock(); }
  44     ~ScopeLockGuard() { mrScopeLock.unlock(); }
  45 private:
  46     ScopeLock& mrScopeLock;
  47 };
  48
  49 } // namespace sd
  50
  51 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */