ceph/src/boost/libs/thread/include/boost/thread/lock_factories.hpp

   1 // Distributed under the Boost Software License, Version 1.0. (See
   2 // accompanying file LICENSE_1_0.txt or copy at
   3 // http://www.boost.org/LICENSE_1_0.txt)
   4 // (C) Copyright 2012 Vicente J. Botet Escriba
   5
   6 #ifndef BOOST_THREAD_LOCK_FACTORIES_HPP
   7 #define BOOST_THREAD_LOCK_FACTORIES_HPP
   8
   9 #include <boost/thread/lock_types.hpp>
  10 #include <boost/thread/lock_algorithms.hpp>
  11 #if ! defined(BOOST_THREAD_NO_MAKE_UNIQUE_LOCKS)
  12 #include <tuple> // todo change to <boost/tuple.hpp> once Boost.Tuple or Boost.Fusion provides Move semantics.
  13 #endif
  14 #include <boost/config/abi_prefix.hpp>
  15
  16 namespace boost
  17 {
  18
  19   template <typename Lockable>
  20   unique_lock<Lockable> make_unique_lock(Lockable& mtx)
  21   {
  22     return unique_lock<Lockable> (mtx);
  23   }
  24
  25   template <typename Lockable>
  26   unique_lock<Lockable> make_unique_lock(Lockable& mtx, adopt_lock_t)
  27   {
  28     return unique_lock<Lockable> (mtx, adopt_lock);
  29   }
  30
  31   template <typename Lockable>
  32   unique_lock<Lockable> make_unique_lock(Lockable& mtx, defer_lock_t)
  33   {
  34     return unique_lock<Lockable> (mtx, defer_lock);
  35   }
  36
  37   template <typename Lockable>
  38   unique_lock<Lockable> make_unique_lock(Lockable& mtx, try_to_lock_t)
  39   {
  40     return unique_lock<Lockable> (mtx, try_to_lock);
  41   }
  42 #if ! defined(BOOST_THREAD_NO_MAKE_UNIQUE_LOCKS)
  43
  44 #if ! defined BOOST_NO_CXX11_VARIADIC_TEMPLATES
  45   template <typename ...Lockable>
  46   std::tuple<unique_lock<Lockable> ...> make_unique_locks(Lockable& ...mtx)
  47   {
  48     boost::lock(mtx...);
  49     return std::tuple<unique_lock<Lockable> ...>(unique_lock<Lockable>(mtx, adopt_lock)...);
  50   }
  51 #else
  52   template <typename L1, typename L2>
  53   std::tuple<unique_lock<L1>, unique_lock<L2> > make_unique_locks(L1& m1, L2& m2)
  54   {
  55     boost::lock(m1, m2);
  56     return std::tuple<unique_lock<L1>,unique_lock<L2> >(
  57         unique_lock<L1>(m1, adopt_lock),
  58         unique_lock<L2>(m2, adopt_lock)
  59     );
  60   }
  61   template <typename L1, typename L2, typename L3>
  62   std::tuple<unique_lock<L1>, unique_lock<L2>, unique_lock<L3> > make_unique_locks(L1& m1, L2& m2, L3& m3)
  63   {
  64     boost::lock(m1, m2, m3);
  65     return std::tuple<unique_lock<L1>,unique_lock<L2>,unique_lock<L3> >(
  66         unique_lock<L1>(m1, adopt_lock),
  67         unique_lock<L2>(m2, adopt_lock),
  68         unique_lock<L3>(m3, adopt_lock)
  69     );
  70   }
  71
  72 #endif
  73 #endif
  74
  75 }
  76
  77 #include <boost/config/abi_suffix.hpp>
  78 #endif