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File: [Pegasus] / pegasus / src / Pegasus / Common / Sharable.h
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Revision: 1.1.1.1 (vendor branch), Sun Jan 14 19:53:13 2001 UTC (23 years, 5 months ago) by mike Branch: pegasus CVS Tags: version_0_8, stable, opengroup Changes since 1.1: +0 -0 lines Pegasus import |
//BEGIN_LICENSE // // Copyright (c) 2000 The Open Group, BMC Software, Tivoli Systems, IBM // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // //END_LICENSE //BEGIN_HISTORY // // Author: // // $Log: Sharable.h,v $ // Revision 1.1.1.1 2001/01/14 19:53:13 mike // Pegasus import // // //END_HISTORY //////////////////////////////////////////////////////////////////////////////// // // Sharable.h // // The Sharable class implements a simple reference counting scheme. // The static Inc() method increments the reference count member. // The static Dec() method decrements the reference count and deletes // the object when the reference count becomes zero. // // Other classes may inherit this reference counting behavior simply // by deriving from this class. // //////////////////////////////////////////////////////////////////////////////// #ifndef Pegasus_Sharable_h #define Pegasus_Sharable_h #include <Pegasus/Common/Config.h> PEGASUS_NAMESPACE_BEGIN class PEGASUS_COMMON_LINKAGE Sharable { public: Sharable() : _ref(1) { } virtual ~Sharable(); Uint32 getRef() const { return _ref; } friend void Inc(const Sharable* sharable); friend void Dec(const Sharable* sharable); private: Uint32 _ref; }; inline void Inc(const Sharable* x) { if (x) ((Sharable*)x)->_ref++; } inline void Dec(const Sharable* x) { if (x && --((Sharable*)x)->_ref == 0) delete (Sharable*)x; } PEGASUS_NAMESPACE_END #endif /* Pegasus_Sharable_h */
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