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64 lines
2.0 KiB
C++
64 lines
2.0 KiB
C++
//////////////////////////////////////////////////////////////////////////////
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//
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// (C) Copyright Ion Gaztanaga 2005-2012. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying file
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// LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/libs/interprocess for documentation.
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//
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//////////////////////////////////////////////////////////////////////////////
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#ifndef BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
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#define BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
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#ifndef BOOST_CONFIG_HPP
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# include <boost/config.hpp>
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#endif
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#
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#if defined(BOOST_HAS_PRAGMA_ONCE)
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# pragma once
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#endif
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#include <boost/interprocess/detail/config_begin.hpp>
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#include <boost/interprocess/detail/workaround.hpp>
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//!\file
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//!Describes the lock options with associated with interprocess_mutex lock constructors.
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namespace boost {
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#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
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namespace posix_time
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{ class ptime; }
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#endif //#if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
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namespace interprocess {
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//!Type to indicate to a mutex lock constructor that must not lock the mutex.
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struct defer_lock_type{};
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//!Type to indicate to a mutex lock constructor that must try to lock the mutex.
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struct try_to_lock_type {};
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//!Type to indicate to a mutex lock constructor that the mutex is already locked.
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struct accept_ownership_type{};
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//!An object indicating that the locking
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//!must be deferred.
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static const defer_lock_type defer_lock = defer_lock_type();
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//!An object indicating that a try_lock()
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//!operation must be executed.
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static const try_to_lock_type try_to_lock = try_to_lock_type();
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//!An object indicating that the ownership of lockable
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//!object must be accepted by the new owner.
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static const accept_ownership_type accept_ownership = accept_ownership_type();
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} // namespace interprocess {
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} // namespace boost{
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#include <boost/interprocess/detail/config_end.hpp>
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#endif // BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
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