74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
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///////////////////////////////////////////////////////////////////////////////
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// Name: wx/unix/tls.h
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// Purpose: Win32 implementation of wxTlsValue<>
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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_MSW_TLS_H_
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#define _WX_MSW_TLS_H_
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#include "wx/log.h"
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#include "wx/msw/wrapwin.h"
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// ----------------------------------------------------------------------------
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// wxTlsKey is a helper class encapsulating a TLS slot
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// ----------------------------------------------------------------------------
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class wxTlsKey
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{
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public:
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// ctor allocates a new key
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wxTlsKey()
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{
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m_slot = ::TlsAlloc();
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if ( m_slot == TLS_OUT_OF_INDEXES )
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wxLogError("Creating TLS key failed");
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}
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// return true if the key was successfully allocated
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bool IsOk() const { return m_slot != TLS_OUT_OF_INDEXES; }
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// get the key value, there is no error return
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void *Get() const
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{
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return ::TlsGetValue(m_slot);
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}
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// change the key value, return true if ok
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bool Set(void *value)
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{
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if ( !::TlsSetValue(m_slot, value) )
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{
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wxLogSysError(_("Failed to set TLS value"));
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return false;
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}
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return true;
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}
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// free the key
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~wxTlsKey()
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{
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if ( IsOk() )
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{
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if ( !::TlsFree(m_slot) )
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{
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wxLogDebug("TlsFree() failed: %08x", ::GetLastError());
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}
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}
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}
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private:
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DWORD m_slot;
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DECLARE_NO_COPY_CLASS(wxTlsKey)
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};
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#endif // _WX_MSW_TLS_H_
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