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55 lines
1.2 KiB
55 lines
1.2 KiB
// RCObject.cpp -- 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// (c) Copyright Schlumberger Technology Corp., unpublished work, created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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#include <stdexcept> // for over/under flow
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#include "windows.h"
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#include "winbase.h"
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#include "slbRCObj.h"
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using namespace std;
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using namespace slbRefCnt;
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void
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RCObject::AddReference()
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{
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// guard against overflow
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if (0 > InterlockedIncrement(&m_cRefCount))
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throw std::overflow_error("SLB: Reference Count overflow");
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}
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void
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RCObject::RemoveReference()
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{
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LONG count = InterlockedDecrement(&m_cRefCount);
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if (0 > count)
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throw std::overflow_error("SLB: Reference Count underflow");
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if (0 == count)
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delete this;
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}
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RCObject::RCObject()
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: m_cRefCount(0)
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{
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}
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RCObject::RCObject(RCObject const&)
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: m_cRefCount(0)
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{
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}
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RCObject::~RCObject()
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{
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}
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RCObject &
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RCObject::operator=(RCObject const&)
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{
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return *this;
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}
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