1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/ossrv_pub/boost_apis/boost/thread/detail/singleton.hpp	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,59 @@
     1.4 +// Copyright (C) 2001-2003
     1.5 +// Mac Murrett
     1.6 +//
     1.7 +// Distributed under the Boost Software License, Version 1.0. (See
     1.8 +// accompanying file LICENSE_1_0.txt or copy at
     1.9 +// http://www.boost.org/LICENSE_1_0.txt)
    1.10 +//
    1.11 +// See http://www.boost.org for most recent version including documentation.
    1.12 +
    1.13 +#ifndef BOOST_SINGLETON_MJM012402_HPP
    1.14 +#define BOOST_SINGLETON_MJM012402_HPP
    1.15 +
    1.16 +#include <boost/thread/detail/config.hpp>
    1.17 +
    1.18 +namespace boost {
    1.19 +namespace detail {
    1.20 +namespace thread {
    1.21 +
    1.22 +// class singleton has the same goal as all singletons: create one instance of
    1.23 +// a class on demand, then dish it out as requested.
    1.24 +
    1.25 +template <class T>
    1.26 +class singleton : private T
    1.27 +{
    1.28 +private:
    1.29 +    singleton();
    1.30 +    ~singleton();
    1.31 +
    1.32 +public:
    1.33 +    static T &instance();
    1.34 +};
    1.35 +
    1.36 +
    1.37 +template <class T>
    1.38 +inline singleton<T>::singleton()
    1.39 +{
    1.40 +    /* no-op */
    1.41 +}
    1.42 +
    1.43 +template <class T>
    1.44 +inline singleton<T>::~singleton()
    1.45 +{
    1.46 +    /* no-op */
    1.47 +}
    1.48 +
    1.49 +template <class T>
    1.50 +/*static*/ T &singleton<T>::instance()
    1.51 +{
    1.52 +    // function-local static to force this to work correctly at static
    1.53 +    // initialization time.
    1.54 +    static singleton<T> s_oT;
    1.55 +    return(s_oT);
    1.56 +}
    1.57 +
    1.58 +} // namespace thread
    1.59 +} // namespace detail
    1.60 +} // namespace boost
    1.61 +
    1.62 +#endif // BOOST_SINGLETON_MJM012402_HPP