ceph/src/boost/libs/interprocess/include/boost/interprocess/detail/xsi_shared_memory_file_wrapper.hpp

   1 //////////////////////////////////////////////////////////////////////////////
   2 //
   3 // (C) Copyright Ion Gaztanaga 2009-2012. Distributed under the Boost
   4 // Software License, Version 1.0. (See accompanying file
   5 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7 // See http://www.boost.org/libs/interprocess for documentation.
   8 //
   9 //////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP
  12 #define BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP
  13
  14 #ifndef BOOST_CONFIG_HPP
  15 #  include <boost/config.hpp>
  16 #endif
  17 #
  18 #if defined(BOOST_HAS_PRAGMA_ONCE)
  19 #  pragma once
  20 #endif
  21
  22 #include <boost/interprocess/detail/config_begin.hpp>
  23 #include <boost/interprocess/detail/workaround.hpp>
  24 #include <boost/detail/workaround.hpp>
  25
  26 #if !defined(BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS)
  27 #error "This header can't be used in operating systems without XSI (System V) shared memory support"
  28 #endif
  29
  30 #include <boost/interprocess/creation_tags.hpp>
  31 #include <boost/interprocess/exceptions.hpp>
  32 #include <boost/interprocess/detail/utilities.hpp>
  33 #include <boost/interprocess/detail/os_file_functions.hpp>
  34 #include <boost/interprocess/detail/shared_dir_helpers.hpp>
  35 #include <boost/interprocess/interprocess_fwd.hpp>
  36 #include <boost/interprocess/exceptions.hpp>
  37
  38 #include <boost/interprocess/xsi_shared_memory.hpp>
  39
  40 //!\file
  41 //!Describes a class representing a pseudo-file implemented on top of xsi shared memory.
  42
  43 namespace boost {
  44 namespace interprocess {
  45
  46 class xsi_shared_memory_file_wrapper
  47    : public xsi_shared_memory
  48 {
  49    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
  50    BOOST_MOVABLE_BUT_NOT_COPYABLE(xsi_shared_memory_file_wrapper)
  51    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
  52    public:
  53
  54    xsi_shared_memory_file_wrapper() : xsi_shared_memory() {}
  55
  56    xsi_shared_memory_file_wrapper(create_only_t, const xsi_key &key, mode_t , std::size_t size, const permissions& perm = permissions())
  57       : xsi_shared_memory(create_only_t(), key, size, perm.get_permissions())
  58    {}
  59
  60    xsi_shared_memory_file_wrapper(open_or_create_t, const xsi_key &key, mode_t , std::size_t size, const permissions& perm = permissions())
  61       : xsi_shared_memory(open_or_create_t(), key, size, perm.get_permissions())
  62    {}
  63
  64    xsi_shared_memory_file_wrapper(open_only_t, const xsi_key &key, mode_t, const permissions& = permissions())
  65       : xsi_shared_memory(open_only_t(), key)
  66    {}
  67
  68    xsi_shared_memory_file_wrapper(BOOST_RV_REF(xsi_shared_memory_file_wrapper) moved)
  69    {  this->swap(moved);   }
  70
  71    xsi_shared_memory_file_wrapper &operator=(BOOST_RV_REF(xsi_shared_memory_file_wrapper) moved)
  72    {
  73       xsi_shared_memory_file_wrapper tmp(boost::move(moved));
  74       this->swap(tmp);
  75       return *this;
  76    }
  77
  78    //!Swaps two xsi_shared_memory_file_wrapper. Does not throw
  79    void swap(xsi_shared_memory_file_wrapper &other)
  80    {  this->xsi_shared_memory::swap(other);  }
  81 };
  82
  83 }  //namespace interprocess {
  84 }  //namespace boost {
  85
  86 #include <boost/interprocess/detail/config_end.hpp>
  87
  88 #endif   //BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP