72 lines
1.8 KiB
C++
72 lines
1.8 KiB
C++
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#include "tsmartpointer.h"
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#include "tthread.h"
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//-------------------------------------------------------------------
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namespace {
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//-------------------------------------------------------------------
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typedef TAtomicVar *TAtomicVarPtr;
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const int maxClassCode = 100;
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TAtomicVarPtr instanceCounts[maxClassCode + 1];
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//-------------------------------------------------------------------
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inline TAtomicVar &getInstanceCounter(long classCode) {
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assert(0 <= classCode && classCode <= maxClassCode);
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TAtomicVarPtr &instanceCountPtr = instanceCounts[classCode];
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if (instanceCountPtr == 0) {
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static TThread::Mutex mutex;
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TThread::ScopedLock g(mutex);
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if (instanceCountPtr == 0) instanceCountPtr = new TAtomicVar();
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}
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assert(instanceCountPtr);
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return *instanceCountPtr;
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}
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//-------------------------------------------------------------------
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} // namespace
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//-------------------------------------------------------------------
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const long TSmartObject::m_unknownClassCode = 0;
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void TSmartObject::incrementInstanceCount() {
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#ifdef INSTANCE_COUNT_ENABLED
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TAtomicVar &instanceCount = getInstanceCounter(m_classCodeRef);
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++instanceCount;
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#else
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assert(0);
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#endif
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}
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//-------------------------------------------------------------------
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void TSmartObject::decrementInstanceCount() {
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#ifdef INSTANCE_COUNT_ENABLED
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TAtomicVar &instanceCount = getInstanceCounter(m_classCodeRef);
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assert(instanceCount > 0);
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--instanceCount;
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#else
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assert(0);
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#endif
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}
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//-------------------------------------------------------------------
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long TSmartObject::getInstanceCount(ClassCode code) {
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#ifdef INSTANCE_COUNT_ENABLED
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TAtomicVar &instanceCount = getInstanceCounter(code);
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return instanceCount;
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#else
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assert(0);
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return 0;
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#endif
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}
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//-------------------------------------------------------------------
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