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Viewing changes to libs/boost-lib/boost/detail/lwm_pthreads.hpp

  • Committer: Bazaar Package Importer
  • Author(s): Alessio Treglia
  • Date: 2010-11-04 11:46:25 UTC
  • mfrom: (1.1.3 upstream)
  • Revision ID: james.westby@ubuntu.com-20101104114625-2tfaxma74eqggp5r
Tags: 0.8.0-0ubuntu1
https://launchpad.net/bugs/670193
* New upstream release (LP: #670193).
* Refresh 02_sparc.diff patch.
* Replace 05-boost_filesystem-link.patch with 05-fix_boost.patch, it fixes
  build failure with Boost <= 1.44.
* Bump Standards.

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libs/boost-lib/boost/detail/lwm_pthreads.hpp
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#ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
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#define BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED
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// MS compatible compilers support #pragma once
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#if defined(_MSC_VER) && (_MSC_VER >= 1020)
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# pragma once
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#endif
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//
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//  boost/detail/lwm_pthreads.hpp
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//
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//  Copyright (c) 2002 Peter Dimov and Multi Media Ltd.
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <pthread.h>
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namespace boost
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{
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namespace detail
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{
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class lightweight_mutex
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{
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private:
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    pthread_mutex_t m_;
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    lightweight_mutex(lightweight_mutex const &);
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    lightweight_mutex & operator=(lightweight_mutex const &);
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public:
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    lightweight_mutex()
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    {
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// HPUX 10.20 / DCE has a nonstandard pthread_mutex_init
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#if defined(__hpux) && defined(_DECTHREADS_)
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        pthread_mutex_init(&m_, pthread_mutexattr_default);
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#else
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        pthread_mutex_init(&m_, 0);
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#endif
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    }
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    ~lightweight_mutex()
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    {
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        pthread_mutex_destroy(&m_);
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    }
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    class scoped_lock;
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    friend class scoped_lock;
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    class scoped_lock
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    {
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    private:
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        pthread_mutex_t & m_;
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        scoped_lock(scoped_lock const &);
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        scoped_lock & operator=(scoped_lock const &);
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    public:
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        scoped_lock(lightweight_mutex & m): m_(m.m_)
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        {
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            pthread_mutex_lock(&m_);
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        }
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        ~scoped_lock()
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        {
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            pthread_mutex_unlock(&m_);
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        }
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    };
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};
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} // namespace detail
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} // namespace boost
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#endif // #ifndef BOOST_DETAIL_LWM_PTHREADS_HPP_INCLUDED