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///////////////////////////////////////////////////////////////////////////////
// Name: wx/private/refcountermt.h
// Purpose: wxRefCounterMT class: MT-safe version of wxRefCounter
// Author: Vadim Zeitlin
// Created: 2021-01-11
// Copyright: (c) 2021 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_PRIVATE_REFCOUNTERMT_H_
#define _WX_PRIVATE_REFCOUNTERMT_H_
#include "wx/atomic.h"
// ----------------------------------------------------------------------------
// Version of wxRefCounter with MT-safe count
// ----------------------------------------------------------------------------
class wxRefCounterMT
{
public:
wxRefCounterMT() { m_count = 1; }
void IncRef() { wxAtomicInc(m_count); }
void DecRef()
{
if ( wxAtomicDec(m_count) == 0 )
delete this;
}
protected:
virtual ~wxRefCounterMT() { }
private:
// Ref count is atomic to allow IncRef() and DecRef() to be concurrently
// called from different threads.
wxAtomicInt m_count;
wxDECLARE_NO_COPY_CLASS(wxRefCounterMT);
};
#endif // _WX_PRIVATE_REFCOUNTERMT_H_
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