66 lines
1.7 KiB
C++
66 lines
1.7 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/unix/tls.h
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// Purpose: Pthreads implementation of wxTlsValue<>
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// Author: Vadim Zeitlin
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// Created: 2008-08-08
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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_UNIX_TLS_H_
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#define _WX_UNIX_TLS_H_
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#include <pthread.h>
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// ----------------------------------------------------------------------------
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// wxTlsKey is a helper class encapsulating the TLS value index
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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 and possibly registering a destructor function
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// for it
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wxTlsKey(wxTlsDestructorFunction destructor)
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{
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m_destructor = destructor;
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if ( pthread_key_create(&m_key, destructor) != 0 )
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m_key = 0;
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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_key != 0; }
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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 pthread_getspecific(m_key);
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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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void *old = Get();
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if ( old )
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m_destructor(old);
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return pthread_setspecific(m_key, value) == 0;
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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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pthread_key_delete(m_key);
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}
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private:
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wxTlsDestructorFunction m_destructor;
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pthread_key_t m_key;
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wxDECLARE_NO_COPY_CLASS(wxTlsKey);
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};
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#endif // _WX_UNIX_TLS_H_
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