interprocess/detail/xsi_shared_memory_file_wrapper.hpp

0001 //////////////////////////////////////////////////////////////////////////////
0002 //
0003 // (C) Copyright Ion Gaztanaga 2009-2012. Distributed under the Boost
0004 // Software License, Version 1.0. (See accompanying file
0005 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007 // See http://www.boost.org/libs/interprocess for documentation.
0008 //
0009 //////////////////////////////////////////////////////////////////////////////
0010
0011 #ifndef BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP
0012 #define BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP
0013
0014 #ifndef BOOST_CONFIG_HPP
0015 #  include <boost/config.hpp>
0016 #endif
0017 0018 ">#
0019 #if defined(BOOST_HAS_PRAGMA_ONCE)
0020 #  pragma once
0021 #endif
0022
0023 #include <boost/interprocess/detail/config_begin.hpp>
0024 #include <boost/interprocess/detail/workaround.hpp>
0025 #include <boost/detail/workaround.hpp>
0026
0027 #if !defined(BOOST_INTERPROCESS_XSI_SHARED_MEMORY_OBJECTS)
0028 #error "This header can't be used in operating systems without XSI (System V) shared memory support"
0029 #endif
0030
0031 #include <boost/interprocess/creation_tags.hpp>
0032 #include <boost/interprocess/exceptions.hpp>
0033 #include <boost/interprocess/detail/utilities.hpp>
0034 #include <boost/interprocess/detail/os_file_functions.hpp>
0035 #include <boost/interprocess/detail/shared_dir_helpers.hpp>
0036 #include <boost/interprocess/interprocess_fwd.hpp>
0037 #include <boost/interprocess/exceptions.hpp>
0038
0039 #include <boost/interprocess/xsi_shared_memory.hpp>
0040
0041 //!\file
0042 //!Describes a class representing a pseudo-file implemented on top of xsi shared memory.
0043
0044 namespace boost {
0045 namespace interprocess {
0046
0047 class xsi_shared_memory_file_wrapper
0048    : public xsi_shared_memory
0049 {
0050    #if !defined(BOOST_INTERPROCESS_DOXYGEN_INVOKED)
0051    BOOST_MOVABLE_BUT_NOT_COPYABLE(xsi_shared_memory_file_wrapper)
0052    #endif   //#ifndef BOOST_INTERPROCESS_DOXYGEN_INVOKED
0053    public:
0054
0055    xsi_shared_memory_file_wrapper() : xsi_shared_memory() {}
0056
0057    xsi_shared_memory_file_wrapper(create_only_t, const xsi_key &key, mode_t , std::size_t size, const permissions& perm = permissions())
0058       : xsi_shared_memory(create_only_t(), key, size, perm.get_permissions())
0059    {}
0060
0061    xsi_shared_memory_file_wrapper(open_or_create_t, const xsi_key &key, mode_t , std::size_t size, const permissions& perm = permissions())
0062       : xsi_shared_memory(open_or_create_t(), key, size, perm.get_permissions())
0063    {}
0064
0065    xsi_shared_memory_file_wrapper(open_only_t, const xsi_key &key, mode_t, const permissions& = permissions())
0066       : xsi_shared_memory(open_only_t(), key)
0067    {}
0068
0069    xsi_shared_memory_file_wrapper(BOOST_RV_REF(xsi_shared_memory_file_wrapper) moved)
0070    {  this->swap(moved);   }
0071
0072    xsi_shared_memory_file_wrapper &operator=(BOOST_RV_REF(xsi_shared_memory_file_wrapper) moved)
0073    {
0074       xsi_shared_memory_file_wrapper tmp(boost::move(moved));
0075       this->swap(tmp);
0076       return *this;
0077    }
0078
0079    //!Swaps two xsi_shared_memory_file_wrapper. Does not throw
0080    void swap(xsi_shared_memory_file_wrapper &other)
0081    {  this->xsi_shared_memory::swap(other);  }
0082 };
0083
0084 }  //namespace interprocess {
0085 }  //namespace boost {
0086
0087 #include <boost/interprocess/detail/config_end.hpp>
0088
0089 #endif   //BOOST_INTERPROCESS_XSI_SHARED_MEMORY_FILE_WRAPPER_HPP