/Src/Dependencies/Boost/boost/interprocess/managed_external_buffer.hpp
http://hadesmem.googlecode.com/ · C++ Header · 107 lines · 63 code · 18 blank · 26 comment · 5 complexity · bc95b4bb2cc4eb03227b8c867656ae49 MD5 · raw file
- //////////////////////////////////////////////////////////////////////////////
- //
- // (C) Copyright Ion Gaztanaga 2005-2009. 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_MANAGED_EXTERNAL_BUFFER_HPP
- #define BOOST_INTERPROCESS_MANAGED_EXTERNAL_BUFFER_HPP
- #if (defined _MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif
- #include <boost/interprocess/detail/config_begin.hpp>
- #include <boost/interprocess/detail/workaround.hpp>
- #include <boost/interprocess/creation_tags.hpp>
- #include <boost/interprocess/detail/managed_memory_impl.hpp>
- #include <boost/interprocess/detail/move.hpp>
- #include <boost/assert.hpp>
- //!\file
- //!Describes a named user memory allocation user class.
- namespace boost {
- namespace interprocess {
- //!A basic user memory named object creation class. Inherits all
- //!basic functionality from
- //!basic_managed_memory_impl<CharType, AllocationAlgorithm, IndexType>*/
- template
- <
- class CharType,
- class AllocationAlgorithm,
- template<class IndexConfig> class IndexType
- >
- class basic_managed_external_buffer
- : public detail::basic_managed_memory_impl <CharType, AllocationAlgorithm, IndexType>
- {
- /// @cond
- typedef detail::basic_managed_memory_impl
- <CharType, AllocationAlgorithm, IndexType> base_t;
- BOOST_INTERPROCESS_MOVABLE_BUT_NOT_COPYABLE(basic_managed_external_buffer)
- /// @endcond
-
- public:
- //!Default constructor. Does nothing.
- //!Useful in combination with move semantics
- basic_managed_external_buffer()
- {}
- //!Creates and places the segment manager. This can throw
- basic_managed_external_buffer
- (create_only_t, void *addr, std::size_t size)
- {
- //Check if alignment is correct
- BOOST_ASSERT((0 == (((std::size_t)addr) & (AllocationAlgorithm::Alignment - std::size_t(1u)))));
- if(!base_t::create_impl(addr, size)){
- throw interprocess_exception("Could not initialize buffer in basic_managed_external_buffer constructor");
- }
- }
- //!Creates and places the segment manager. This can throw
- basic_managed_external_buffer
- (open_only_t, void *addr, std::size_t size)
- {
- //Check if alignment is correct
- BOOST_ASSERT((0 == (((std::size_t)addr) & (AllocationAlgorithm::Alignment - std::size_t(1u)))));
- if(!base_t::open_impl(addr, size)){
- throw interprocess_exception("Could not initialize buffer in basic_managed_external_buffer constructor");
- }
- }
- //!Moves the ownership of "moved"'s managed memory to *this. Does not throw
- basic_managed_external_buffer(BOOST_INTERPROCESS_RV_REF(basic_managed_external_buffer) moved)
- {
- this->swap(moved);
- }
- //!Moves the ownership of "moved"'s managed memory to *this. Does not throw
- basic_managed_external_buffer &operator=(BOOST_INTERPROCESS_RV_REF(basic_managed_external_buffer) moved)
- {
- basic_managed_external_buffer tmp(boost::interprocess::move(moved));
- this->swap(tmp);
- return *this;
- }
- void grow(std::size_t extra_bytes)
- { base_t::grow(extra_bytes); }
- //!Swaps the ownership of the managed heap memories managed by *this and other.
- //!Never throws.
- void swap(basic_managed_external_buffer &other)
- { base_t::swap(other); }
- };
- } //namespace interprocess {
- } //namespace boost {
- #include <boost/interprocess/detail/config_end.hpp>
- #endif //BOOST_INTERPROCESS_MANAGED_EXTERNAL_BUFFER_HPP