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author | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:25:44 +0200 |
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committer | Jörg Frings-Fürst <debian@jff-webhosting.net> | 2014-07-23 15:25:44 +0200 |
commit | 8286ac511144e4f17d34eac9affb97e50646344a (patch) | |
tree | f1af7320d7b6be6be059216d0ad08ac7b4f73fd0 /libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp | |
parent | a15cf65c44d5c224169c32ef5495b68c758134b7 (diff) |
Imported Upstream version 4.0.0upstream/4.0.0
Diffstat (limited to 'libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp')
-rw-r--r-- | libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp b/libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp new file mode 100644 index 0000000..20c483c --- /dev/null +++ b/libcutl/cutl/details/boost/smart_ptr/detail/spinlock_pt.hpp @@ -0,0 +1,79 @@ +#ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED +#define BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED + +// MS compatible compilers support #pragma once + +#if defined(_MSC_VER) && (_MSC_VER >= 1020) +# pragma once +#endif + +// +// Copyright (c) 2008 Peter Dimov +// +// Distributed under the Boost Software License, Version 1.0. +// See accompanying file LICENSE_1_0.txt or copy at +// http://www.boost.org/LICENSE_1_0.txt) +// + +#include <pthread.h> + +namespace cutl_details_boost +{ + +namespace detail +{ + +class spinlock +{ +public: + + pthread_mutex_t v_; + +public: + + bool try_lock() + { + return pthread_mutex_trylock( &v_ ) == 0; + } + + void lock() + { + pthread_mutex_lock( &v_ ); + } + + void unlock() + { + pthread_mutex_unlock( &v_ ); + } + +public: + + class scoped_lock + { + private: + + spinlock & sp_; + + scoped_lock( scoped_lock const & ); + scoped_lock & operator=( scoped_lock const & ); + + public: + + explicit scoped_lock( spinlock & sp ): sp_( sp ) + { + sp.lock(); + } + + ~scoped_lock() + { + sp_.unlock(); + } + }; +}; + +} // namespace detail +} // namespace cutl_details_boost + +#define BOOST_DETAIL_SPINLOCK_INIT { PTHREAD_MUTEX_INITIALIZER } + +#endif // #ifndef BOOST_SMART_PTR_DETAIL_SPINLOCK_PT_HPP_INCLUDED |