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//////////////////////////////////////////////////////////////////////////////
//
// (C) Copyright Ion Gaztanaga 2005-2011. 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)
//
// See http://www.boost.org/libs/interprocess for documentation.
//
//////////////////////////////////////////////////////////////////////////////
#ifndef BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
#define BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
#if (defined _MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif
#include <boost/interprocess/detail/config_begin.hpp>
#include <boost/interprocess/detail/workaround.hpp>
//!\file
//!Describes the lock options with associated with interprocess_mutex lock constructors.
namespace boost {
namespace posix_time
{ class ptime; }
namespace interprocess {
//!Type to indicate to a mutex lock constructor that must not lock the mutex.
struct defer_lock_type{};
//!Type to indicate to a mutex lock constructor that must try to lock the mutex.
struct try_to_lock_type {};
//!Type to indicate to a mutex lock constructor that the mutex is already locked.
struct accept_ownership_type{};
//!An object indicating that the locking
//!must be deferred.
static const defer_lock_type defer_lock = defer_lock_type();
//!An object indicating that a try_lock()
//!operation must be executed.
static const try_to_lock_type try_to_lock = try_to_lock_type();
//!An object indicating that the ownership of lockable
//!object must be accepted by the new owner.
static const accept_ownership_type accept_ownership = accept_ownership_type();
} // namespace interprocess {
} // namespace boost{
#include <boost/interprocess/detail/config_end.hpp>
#endif // BOOST_INTERPROCESS_LOCK_OPTIONS_HPP
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