0f82a1e043
This is required because these classes are copied in both the main and the worker threads and using plain int is MT-unsafe.
43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/private/refcountermt.h
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// Purpose: wxRefCounterMT class: MT-safe version of wxRefCounter
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// Author: Vadim Zeitlin
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// Created: 2021-01-11
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// Copyright: (c) 2021 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_PRIVATE_REFCOUNTERMT_H_
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#define _WX_PRIVATE_REFCOUNTERMT_H_
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#include "wx/atomic.h"
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// ----------------------------------------------------------------------------
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// Version of wxRefCounter with MT-safe count
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// ----------------------------------------------------------------------------
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class wxRefCounterMT
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{
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public:
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wxRefCounterMT() { m_count = 1; }
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void IncRef() { wxAtomicInc(m_count); }
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void DecRef()
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{
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if ( wxAtomicDec(m_count) == 0 )
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delete this;
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}
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protected:
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virtual ~wxRefCounterMT() { }
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private:
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// Ref count is atomic to allow IncRef() and DecRef() to be concurrently
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// called from different threads.
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wxAtomicInt m_count;
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wxDECLARE_NO_COPY_CLASS(wxRefCounterMT);
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};
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#endif // _WX_PRIVATE_REFCOUNTERMT_H_
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