49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
// slbRCObj.h -- Reference counted abstract base class
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// (c) Copyright Schlumberger Technology Corp., unpublished work, created
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// 1999. This computer program includes Confidential, Proprietary
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// Information and is a Trade Secret of Schlumberger Technology Corp. All
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// use, disclosure, and/or reproduction is prohibited unless authorized
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// in writing. All Rights Reserved.
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#if !defined(SLB_RCOBJ_H)
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#define SLB_RCOBJ_H
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#include "windows.h" // for LONG
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namespace slbRefCnt {
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// RCObject -- Abstract base class for reference-counted object.
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//
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// All objects that need to be reference counted through RCPtr should be
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// derived from this class (see slbRCPtr.h for more info on RCPtr).
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//
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// CONSTRAINTS: Objects derived from RCObject must be allocated from
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// the heap and not the stack.
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//
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class RCObject {
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public:
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// Operations
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void AddReference();
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void RemoveReference();
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protected:
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// Contructors/Destructors
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RCObject();
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RCObject(RCObject const &rhs);
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virtual ~RCObject() = 0;
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// Operators
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RCObject &operator=(RCObject const &rhs);
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private:
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// Variables
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LONG m_cRefCount;
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};
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} // namespace
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#endif // SLB_RCOBJ_H
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