ceph/src/boost/libs/thread/include/boost/thread/shared_lock_guard.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_SHARED_LOCK_GUARD_HPP
   7 #define BOOST_THREAD_SHARED_LOCK_GUARD_HPP
   8 #include <boost/thread/detail/config.hpp>
   9 //#include <boost/thread/locks.hpp>
  10 #include <boost/thread/lock_options.hpp>
  11 #include <boost/thread/detail/delete.hpp>
  12
  13 namespace boost
  14 {
  15
  16     template<typename SharedMutex>
  17     class shared_lock_guard
  18     {
  19     private:
  20         SharedMutex& m;
  21
  22     public:
  23         typedef SharedMutex mutex_type;
  24         BOOST_THREAD_NO_COPYABLE(shared_lock_guard)
  25         explicit shared_lock_guard(SharedMutex& m_):
  26             m(m_)
  27         {
  28             m.lock_shared();
  29         }
  30         shared_lock_guard(SharedMutex& m_,adopt_lock_t):
  31             m(m_)
  32         {}
  33         ~shared_lock_guard()
  34         {
  35             m.unlock_shared();
  36         }
  37     };
  38
  39 #ifdef BOOST_THREAD_NO_AUTO_DETECT_MUTEX_TYPES
  40
  41     template<typename T>
  42     struct is_mutex_type<shared_lock_guard<T> >
  43     {
  44         BOOST_STATIC_CONSTANT(bool, value = true);
  45     };
  46
  47
  48 #endif
  49
  50
  51 }
  52
  53 #endif // header