00001 /* 00002 * Licensed to the Apache Software Foundation (ASF) under one 00003 * or more contributor license agreements. See the NOTICE file 00004 * distributed with this work for additional information 00005 * regarding copyright ownership. The ASF licenses this file 00006 * to you under the Apache License, Version 2.0 (the "License"); 00007 * you may not use this file except in compliance with the License. 00008 * You may obtain a copy of the License at 00009 * 00010 * http://www.apache.org/licenses/LICENSE-2.0 00011 * 00012 * Unless required by applicable law or agreed to in writing, software 00013 * distributed under the License is distributed on an "AS IS" BASIS, 00014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00015 * See the License for the specific language governing permissions and 00016 * limitations under the License. 00017 */ 00018 #if !defined(XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680) 00019 #define XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680 00020 00021 00022 00023 // Base include file. Must be first. 00024 #include <xalanc/PlatformSupport/PlatformSupportDefinitions.hpp> 00025 00026 00027 00028 XALAN_CPP_NAMESPACE_BEGIN 00029 00030 00031 00032 /** 00033 * Class to hold reference count information. 00034 */ 00035 class XALAN_PLATFORMSUPPORT_EXPORT XalanReferenceCountedObject 00036 { 00037 public: 00038 00039 /** 00040 * Increment reference count. 00041 */ 00042 static void 00043 addReference(XalanReferenceCountedObject* theInstance); 00044 00045 /** 00046 * Decrement reference count. 00047 */ 00048 static void 00049 removeReference(XalanReferenceCountedObject* theInstance); 00050 00051 protected: 00052 00053 /** 00054 * Create a XalanReferenceCountedObject. 00055 */ 00056 explicit 00057 XalanReferenceCountedObject(); 00058 00059 virtual 00060 ~XalanReferenceCountedObject(); 00061 00062 virtual void 00063 referenced() = 0; 00064 00065 virtual void 00066 dereferenced() = 0; 00067 00068 virtual XalanSize_t 00069 getReferenceCount() const 00070 { 00071 return m_referenceCount; 00072 } 00073 00074 private: 00075 00076 XalanSize_t m_referenceCount; 00077 00078 // Not implemented... 00079 XalanReferenceCountedObject& 00080 operator=(const XalanReferenceCountedObject&); 00081 00082 XalanReferenceCountedObject(const XalanReferenceCountedObject&); 00083 }; 00084 00085 00086 00087 XALAN_CPP_NAMESPACE_END 00088 00089 00090 00091 #endif // XALANREFERENCECOUNTEDOBJECT_HEADER_GUARD_1357924680
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