73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/tls.h
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// Purpose: Implementation of thread local storage
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// Author: Vadim Zeitlin
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// Created: 2008-08-08
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// RCS-ID: $Id$
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// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_TLS_H_
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#define _WX_TLS_H_
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#include "wx/defs.h"
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// ----------------------------------------------------------------------------
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// check for compiler support of thread-specific variables
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// ----------------------------------------------------------------------------
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#ifdef HAVE___THREAD_KEYWORD
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#define wxHAS_COMPILER_TLS
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#define wxTHREAD_SPECIFIC_DECL __thread
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#elif wxCHECK_VISUALC_VERSION(7)
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#define wxHAS_COMPILER_TLS
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#define wxTHREAD_SPECIFIC_DECL __declspec(thread)
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#endif
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// ----------------------------------------------------------------------------
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// define wxTLS_TYPE()
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// ----------------------------------------------------------------------------
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#ifdef wxHAS_COMPILER_TLS
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#define wxTLS_TYPE(T) wxTHREAD_SPECIFIC_DECL T
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#else // !wxHAS_COMPILER_TLS
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#ifdef __WXMSW__
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#include "wx/msw/tls.h"
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#elif defined(__UNIX__)
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#include "wx/unix/tls.h"
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#else
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// TODO: we could emulate TLS for such platforms...
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#error Neither compiler nor OS support thread-specific variables.
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#endif
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// wxTlsValue<T> represents a thread-specific value of type T
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template <typename T>
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class wxTlsValue
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{
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public:
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typedef T ValueType;
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wxTlsValue() { *this = static_cast<T>(0); }
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wxTlsValue& operator=(T value)
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{
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m_key.Set(wxUIntToPtr(value));
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return *this;
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}
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operator T() const { return wxPtrToUInt(m_key.Get()); }
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private:
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wxTlsKey m_key;
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DECLARE_NO_COPY_TEMPLATE_CLASS(wxTlsValue, T)
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};
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#define wxTLS_TYPE(T) wxTlsValue<T>
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#endif // wxHAS_COMPILER_TLS/!wxHAS_COMPILER_TLS
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#endif // _WX_TLS_H_
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