/usr/include/wx-3.0/wx/unix/tls.h is in wx3.0-headers 3.0.0-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Name: wx/unix/tls.h
// Purpose: Pthreads implementation of wxTlsValue<>
// Author: Vadim Zeitlin
// Created: 2008-08-08
// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_UNIX_TLS_H_
#define _WX_UNIX_TLS_H_
#include <pthread.h>
// ----------------------------------------------------------------------------
// wxTlsKey is a helper class encapsulating the TLS value index
// ----------------------------------------------------------------------------
class wxTlsKey
{
public:
// ctor allocates a new key and possibly registering a destructor function
// for it
wxTlsKey(wxTlsDestructorFunction destructor)
{
m_destructor = destructor;
if ( pthread_key_create(&m_key, destructor) != 0 )
m_key = 0;
}
// return true if the key was successfully allocated
bool IsOk() const { return m_key != 0; }
// get the key value, there is no error return
void *Get() const
{
return pthread_getspecific(m_key);
}
// change the key value, return true if ok
bool Set(void *value)
{
void *old = Get();
if ( old )
m_destructor(old);
return pthread_setspecific(m_key, value) == 0;
}
// free the key
~wxTlsKey()
{
if ( IsOk() )
pthread_key_delete(m_key);
}
private:
wxTlsDestructorFunction m_destructor;
pthread_key_t m_key;
wxDECLARE_NO_COPY_CLASS(wxTlsKey);
};
#endif // _WX_UNIX_TLS_H_
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