00001 /******************************************************************************* 00002 * Copyright (C) 2001-2004 Vintela, Inc. All rights reserved. 00003 * 00004 * Redistribution and use in source and binary forms, with or without 00005 * modification, are permitted provided that the following conditions are met: 00006 * 00007 * - Redistributions of source code must retain the above copyright notice, 00008 * this list of conditions and the following disclaimer. 00009 * 00010 * - Redistributions in binary form must reproduce the above copyright notice, 00011 * this list of conditions and the following disclaimer in the documentation 00012 * and/or other materials provided with the distribution. 00013 * 00014 * - Neither the name of Vintela, Inc. nor the names of its 00015 * contributors may be used to endorse or promote products derived from this 00016 * software without specific prior written permission. 00017 * 00018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS IS'' 00019 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00020 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00021 * ARE DISCLAIMED. IN NO EVENT SHALL Vintela, Inc. OR THE CONTRIBUTORS 00022 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00023 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00024 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00025 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00026 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00027 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 00028 * POSSIBILITY OF SUCH DAMAGE. 00029 ******************************************************************************/ 00030 00035 #ifndef OWBI1_REF_COUNT_HPP_ 00036 #define OWBI1_REF_COUNT_HPP_ 00037 #include "OWBI1_config.h" 00038 #include "OWBI1_AtomicOps.hpp" 00039 00040 // The classes and functions defined in this file are not meant for general 00041 // use, they are internal implementation details. They may change at any time. 00042 00043 namespace OWBI1 00044 { 00045 00047 class OWBI1_OWBI1PROVIFC_API RefCount 00048 { 00049 public: 00050 RefCount() 00051 : m_count(1) 00052 { 00053 } 00054 RefCount(Atomic_t c) 00055 : m_count(c) 00056 { 00057 } 00058 void inc() 00059 { 00060 AtomicInc(m_count); 00061 } 00062 bool decAndTest() 00063 { 00064 return AtomicDecAndTest(m_count); 00065 } 00066 int get() const 00067 { 00068 return AtomicGet(m_count); 00069 } 00070 private: 00071 Atomic_t m_count; 00072 }; 00073 00074 } // end namespace OWBI1 00075 00076 #endif